Commit graph

1918 commits

Author SHA1 Message Date
Gerd Hoffmann 94c5a60637 x86: add support for second ioapic
Add ioapic_init_secondary to initialize it, wire up
in gsi handling and acpi apic table creation.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Message-id: 20201203105423.10431-4-kraxel@redhat.com
2020-12-10 08:47:44 +01:00
Gerd Hoffmann ceea95cd88 x86: rewrite gsi_handler()
Rewrite function to use switch() for IRQ number mapping.
Check i8259_irq exists before raising it so the function
also works in case no i8259 (aka pic) is present.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20201203105423.10431-3-kraxel@redhat.com
2020-12-10 08:47:44 +01:00
Igor Mammedov 7ed3e1ebcb x86: ich9: let firmware negotiate 'CPU hot-unplug with SMI' feature
Keep CPU hotunplug with SMI disabled on 5.2 and older and enable
it by default on newer machine types.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20201207140739.3829993-9-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-12-09 13:04:17 -05:00
Igor Mammedov 69dea9d6b3 x86: acpi: let the firmware handle pending "CPU remove" events in SMM
if firmware and QEMU negotiated CPU hotunplug support, generate
_EJ0 method so that it will mark CPU for removal by firmware and
pass control to it by triggering SMI.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20201207140739.3829993-6-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-12-09 13:04:17 -05:00
Igor Mammedov 892aae7430 x86: acpi: introduce AcpiPmInfo::smi_on_cpu_unplug
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20201207140739.3829993-4-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-12-09 13:04:17 -05:00
Erich-McMillan 0657c657eb hw/i386/pc: add max combined fw size as machine configuration option
At Hewlett Packard Inc. we have a need for increased fw size to enable testing of our custom fw.

Rebase v6 patch to d73c46e4

Signed-off-by: Erich McMillan <erich.mcmillan@hp.com>
Message-Id: <20201208155338.14-1-erich.mcmillan@hp.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-12-09 13:04:17 -05:00
Cornelia Huck 576a00bdeb hw: add compat machines for 6.0
Add 6.0 machine types for arm/i440fx/q35/s390x/spapr.

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20201109173928.1001764-1-cohuck@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-12-08 13:48:58 -05:00
Yubo Miao 37d5c0a8ff acpi: Extract crs build form acpi_build.c
Extract crs build form acpi_build.c, the function could also be used
to build the crs for pxbs for arm. The resources are composed by two parts:
1. The bar space of pci-bridge/pcie-root-ports
2. The resources needed by devices behind PXBs.
The base and limit of memory/io are obtained from the config via two APIs:
pci_bridge_get_base and pci_bridge_get_limit

Signed-off-by: Yubo Miao <miaoyubo@huawei.com>
Signed-off-by: Jiahui Cen <cenjiahui@huawei.com>
Message-Id: <20201119014841.7298-5-cenjiahui@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-12-08 13:48:57 -05:00
Jiahui Cen 0abd38885a fw_cfg: Refactor extra pci roots addition
Extract extra pci roots addition from pc machine, which could be used by
other machines.

In order to make uefi get the extra roots, it is necessary to write extra
roots into fw_cfg. And only if the uefi knows there are extra roots,
the config spaces of devices behind the root could be obtained.

Signed-off-by: Jiahui Cen <cenjiahui@huawei.com>
Signed-off-by: Yubo Miao <miaoyubo@huawei.com>
Message-Id: <20201119014841.7298-3-cenjiahui@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-12-08 13:48:57 -05:00
Eugenio Pérez f7701e2c79 intel_iommu: Skip page walking on device iotlb invalidations
Although they didn't reach the notifier because of the filtering in
memory_region_notify_iommu_one, the vt-d was still splitting huge
memory invalidations in chunks. Skipping it.

This improves performance in case of netperf with vhost-net:
* TCP_STREAM: From 1923.6Mbit/s to 2175.13Mbit/s (13%)
* TCP_RR: From 8464.73 trans/s to 8932.703333 trans/s (5.5%)
* UDP_RR: From 8562.08 trans/s to 9005.62/s (5.1%)
* UDP_STREAM: No change observed (insignificant 0.1% improvement)

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20201116165506.31315-5-eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-12-08 13:48:57 -05:00
Eugenio Pérez b68ba1ca57 memory: Add IOMMU_NOTIFIER_DEVIOTLB_UNMAP IOMMUTLBNotificationType
This allows us to differentiate between regular IOMMU map/unmap events
and DEVIOTLB unmap. Doing so, notifiers that only need device IOTLB
invalidations will not receive regular IOMMU unmappings.

Adapt intel and vhost to use it.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20201116165506.31315-4-eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-12-08 13:48:57 -05:00
Eugenio Pérez 5039caf3c4 memory: Add IOMMUTLBEvent
This way we can tell between regular IOMMUTLBEntry (entry of IOMMU
hardware) and notifications.

In the notifications, we set explicitly if it is a MAPs or an UNMAP,
instead of trusting in entry permissions to differentiate them.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20201116165506.31315-3-eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2020-12-08 13:48:57 -05:00
Eugenio Pérez 3b5ebf8532 memory: Rename memory_region_notify_one to memory_region_notify_iommu_one
Previous name didn't reflect the iommu operation.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20201116165506.31315-2-eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-12-08 13:48:57 -05:00
Philippe Mathieu-Daudé 811c74fb65 hw/i386/acpi-build: Fix maybe-uninitialized error when ACPI hotplug off
GCC 9.3.0 thinks that 'method' can be left uninitialized. This code
is already in the "if (bsel || pcihp_bridge_en)" block statement,
but it isn't smart enough to figure it out.

Restrict the code to be used only in the "if (bsel || pcihp_bridge_en)"
block statement to fix (on Ubuntu):

  ../hw/i386/acpi-build.c: In function 'build_append_pci_bus_devices':
  ../hw/i386/acpi-build.c:496:9: error: 'method' may be used uninitialized
  in this function [-Werror=maybe-uninitialized]
    496 |         aml_append(parent_scope, method);
        |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  cc1: all warnings being treated as errors

Fixes: df4008c9c5 ("piix4: don't reserve hw resources when hotplug is off globally")
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20201108204535.2319870-4-philmd@redhat.com>
Message-Id: <20201110192316.26397-8-alex.bennee@linaro.org>
2020-11-16 11:08:00 +00:00
Michael S. Tsirkin 54420332b5 pc: comment style fixup
Fix up checkpatch comment style warnings.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Chen Qun <kuhn.chenqun@huawei.com>
2020-11-03 07:19:26 -05:00
Peter Maydell 700d20b49e pc,pci,vhost,virtio: misc fixes
Just a bunch of bugfixes all over the place.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAl+cCq8PHG1zdEByZWRo
 YXQuY29tAAoJECgfDbjSjVRpKWkH/0qq+u2z/q0KYzmodcdW2eFNsvKF2e+Dz3Af
 zZGMREH93DsKAQ2k3t84sz2RAaAP45cCqrq+v8kSzmpaC7GqKYA/VceeLwy8e6Eu
 YKvu5QixrOVTpNg2QV/w44ywgtA4NbWy5Fr9S4qhzPyyD/gtE609weZ1vQnSFT7B
 Gg4vr1lcqskwYTH7sh+bpsDTUeANr7QaknWKnaomroz+IUO8m9ig6RKtegaXhQCj
 xswI4458S3nklqnoGMa56j46VYwft8YHO1lBiR1WefTHylknyng9Tdvf9G5mnzVg
 wyrMTuT36lMXIa5KcSZeECIt2ZUT6KSSjWzEKZNXL5lS3gfUo7o=
 =powp
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pc,pci,vhost,virtio: misc fixes

Just a bunch of bugfixes all over the place.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Fri 30 Oct 2020 12:44:31 GMT
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  intel_iommu: Fix two misuse of "0x%u" prints
  virtio: skip guest index check on device load
  vhost-blk: set features before setting inflight feature
  pci: Disallow improper BAR registration for type 1
  pci: Change error_report to assert(3)
  pci: advertise a page aligned ATS
  pc: Implement -no-hpet as sugar for -machine hpet=on
  vhost: Don't special case vq->used_phys in vhost_get_log_size()
  pci: Assert irqnum is between 0 and bus->nirqs in pci_bus_change_irq_level
  hw/pci: Extract pci_bus_change_irq_level() from pci_change_irq_level()
  hw/virtio/vhost-vdpa: Fix Coverity CID 1432864
  acpi/crs: Support ranges > 32b for hosts
  acpi/crs: Prevent bad ranges for host bridges
  vhost-vsock: set vhostfd to non-blocking mode
  vhost-vdpa: negotiate VIRTIO_NET_F_STATUS with driver

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-11-01 14:02:19 +00:00
Peter Xu 73beb01ec5 intel_iommu: Fix two misuse of "0x%u" prints
Dave magically found this.  Fix them with "0x%x".

Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20201019173922.100270-1-peterx@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-10-30 06:48:53 -04:00
Eduardo Habkost 0259c78ca7 pc: Implement -no-hpet as sugar for -machine hpet=on
Get rid of yet another global variable.

The default will be hpet=on only if CONFIG_HPET=y.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20201021144716.1536388-1-ehabkost@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-10-30 04:29:13 -04:00
Ben Widawsky 9390255468 acpi/crs: Support ranges > 32b for hosts
According to PCIe spec 5.0 Type 1 header space Base Address Registers
are defined by 7.5.1.2.1 Base Address Registers (same as Type 0). The
_CRS region should allow for the same range (up to 64b). Prior to this
change, any host bridge utilizing more than 32b for the BAR would have
the address truncated and likely lead to conflicts when the operating
systems reads the _CRS object.

Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>

Message-Id: <20201026193924.985014-2-ben.widawsky@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
2020-10-30 04:29:13 -04:00
Ben Widawsky acab9d8a9e acpi/crs: Prevent bad ranges for host bridges
Prevent _CRS resources being quietly chopped off and instead throw an
assertion. _CRS is used by host bridges to declare regions of io and/or
memory that they consume. On some (all?) platforms the host bridge
doesn't have PCI header space and so they need some way to convey the
information.

Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>

Message-Id: <20201026193924.985014-1-ben.widawsky@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Igor Mammedov <imammedo@redhat.com>
2020-10-30 04:29:13 -04:00
Greg Kurz 84fd549619 pc-dimm: Drop @errp argument of pc_dimm_plug()
pc_dimm_plug() doesn't use it. It only aborts on error.

Drop @errp and adapt the callers accordingly.

[dwg: Removed unused label to fix compile]
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <160309728447.2739814.12831204841251148202.stgit@bahia.lan>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-28 01:08:53 +11:00
Peter Maydell 02aa56c4bc microvm: fix PCIe IRQs in APIC table.
microvm: add usb support.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABCgAGBQJfkEogAAoJEEy22O7T6HE4yBMP/1csWFbfJ6JWbqiLoH/ltMn5
 ojgGfcP6ErGNtNP6kBO/FupCzc26ejRDJuvYLmlJ6+Jkga/zCAXjdLyXrSMRbtKK
 Nk8KwYSo82ApK45yJuVKZonUoGV6l9sIMyipkctlUXFMrvVaPh0MtnLIFckxtkCJ
 npAUnakkke5fP5Bsluw/N+fApAKQlPyqSBlPoPgsjNQ3ODisCitaH6Fx5sGuNJnV
 RSCAynkVkJ+vRT5iEojR6nNEn3vei8KHzL7vGxSdVd6ypjUc16ARpaPyXs2+opdP
 jqtGArrLn8V94rOPnGBwpV5P5soUch/tllCZtzbBZDaFr3bCHo0kNytxufoZ7yzM
 3z+wLgEHm3ZVRhraKE/Ed0Fz99tHm13zBWM3HctNtaY1tP7/4MnjMXRYArLQFFIt
 SoG7hSOPQJ/9JgtMPLRwjne2kHqYWwQ7wrROmnTWvx7RlfsD5JhUqMPocBnEb4pq
 kl5r6ajtZ9D67IZYKtv1JxKBdOXy7VmoEQMsZPwIxuMb5EN4N+RBqdMXs9lzzNEG
 mNCDzW5jDUlVG3YWu1Zxbs8j0+Mvlk7yD5zj368DvZZIgAMR0OxlcNbLVEFMpu8u
 pndpELjb/A/zHZloJyMXfCz19ahKxQeKjF1n4H5Ja6PvC8olALzhIy0ikOA66At0
 2I7Qs8bfGahjOdz4HSnJ
 =LkZR
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/kraxel/tags/microvm-20201021-pull-request' into staging

microvm: fix PCIe IRQs in APIC table.
microvm: add usb support.

# gpg: Signature made Wed 21 Oct 2020 15:48:00 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/microvm-20201021-pull-request:
  tests/acpi: update expected data files
  tests/acpi: add microvm rtc test
  tests/acpi: add microvm usb test
  tests/acpi: add empty tests/data/acpi/microvm/DSDT.{usb, rtc} files
  tests/acpi: allow updates for expected data files
  microvm: add usb support
  usb/xhci: fixup xhci kconfig deps
  usb/xhci: add xhci_sysbus_build_aml() helper
  usb/xhci: add include/hw/usb/xhci.h header file
  acpi: add aml builder stubs
  tests/acpi: disallow changes for microvm/APIC.pcie
  tests/acpi: update expected data files
  apci: drop has_pci arg for acpi_build_madt
  microvm: set pci_irq_mask
  x86: make pci irqs runtime configurable
  tests/acpi: add empty microvm/APIC.pcie
  tests/acpi: allow changes for microvm/APIC.pcie

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-21 21:45:46 +01:00
Gerd Hoffmann d4a42e8581 microvm: add usb support
Wire up "usb=on" machine option, when enabled add
a sysbus xhci controller with 8 ports.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20201020074844.5304-6-kraxel@redhat.com
2020-10-21 11:36:19 +02:00
Gerd Hoffmann a6518755a6 apci: drop has_pci arg for acpi_build_madt
Setting x86ms->pci_irq_mask to zero has the same effect,
so we don't need the has_pci argument any more.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20201016113835.17465-6-kraxel@redhat.com
2020-10-21 11:36:05 +02:00
Gerd Hoffmann 64b070dad3 microvm: set pci_irq_mask
Makes sure the PCI interrupt overrides are added to the
APIC table in case PCIe is enabled.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20201016113835.17465-5-kraxel@redhat.com
2020-10-21 11:36:05 +02:00
Gerd Hoffmann 1b2802c49f x86: make pci irqs runtime configurable
Add a variable to x86 machine state instead of
hard-coding the PCI interrupts.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20201016113835.17465-4-kraxel@redhat.com
2020-10-21 11:36:05 +02:00
Philippe Mathieu-Daudé 28af9ba260 qapi: Restrict Xen migration commands to migration.json
Restricting xen-set-global-dirty-log and xen-load-devices-state
commands migration.json pulls slightly less QAPI-generated code
into user-mode and tools.

Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20201012121536.3381997-6-philmd@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-10-21 05:00:44 +02:00
Jason Andryuk 8959e0a63a hw/xen: Set suppress-vmdesc for Xen machines
xen-save-devices-state doesn't currently generate a vmdesc, so restore
always triggers "Expected vmdescription section, but got 0".  This is
not a problem when restore comes from a file.  However, when QEMU runs
in a linux stubdom and comes over a console, EOF is not received.  This
causes a delay restoring - though it does restore.

Setting suppress-vmdesc skips looking for the vmdesc during restore and
avoids the wait.

The other approach would be generate a vmdesc in qemu_save_device_state.
Since COLO shared that function, and the vmdesc is just discarded on
restore, we choose to skip it.

Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20201013190506.3325-1-jandryuk@gmail.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2020-10-19 16:33:28 +01:00
Michael Tokarev 5b6a8f4392 xen: xenguest is not used so is not needed
There's no references in only file which includes xenguest.h
to any xen definitions. And there's no references to -lxenguest
in qemu, either. Drop it.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20200727140048.19779-1-mjt@msgid.tls.msk.ru>
[perard: rebased]
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2020-10-19 16:22:58 +01:00
Eduardo Habkost eafa08683f i386/kvm: Delete kvm_allows_irq0_override()
As IRQ routing is always available on x86,
kvm_allows_irq0_override() will always return true, so we don't
need the function anymore.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200922201922.2153598-4-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-10-14 15:28:54 -04:00
Eduardo Habkost 8981bae23e i386/kvm: Remove IRQ routing support checks
KVM_CAP_IRQ_ROUTING is always available on x86, so replace checks
for kvm_has_gsi_routing() and KVM_CAP_IRQ_ROUTING with asserts.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200922201922.2153598-3-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-10-14 15:28:54 -04:00
Claudio Fontana 430065dab0 cpus: prepare new CpusAccel cpu accelerator interface
The new interface starts unused, will start being used by the
next patches.

It provides methods for each accelerator to start a vcpu, kick a vcpu,
synchronize state, get cpu virtual clock and elapsed ticks.

In qemu_wait_io_event, make it clear that APC is used only for HAX
on Windows.

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-05 16:41:22 +02:00
Claudio Fontana 740b175973 cpu-timers, icount: new modules
refactoring of cpus.c continues with cpu timer state extraction.

cpu-timers: responsible for the softmmu cpu timers state,
            including cpu clocks and ticks.

icount: counts the TCG instructions executed. As such it is specific to
the TCG accelerator. Therefore, it is built only under CONFIG_TCG.

One complication is due to qtest, which uses an icount field to warp time
as part of qtest (qtest_clock_warp).

In order to solve this problem, provide a separate counter for qtest.

This requires fixing assumptions scattered in the code that
qtest_enabled() implies icount_enabled(), checking each specific case.

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[remove redundant initialization with qemu_spice_init]
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
[fix lingering calls to icount_get]
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-05 16:41:22 +02:00
Peter Maydell b23317eec4 microvm: add pcie support.
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABCgAGBQJfdMT5AAoJEEy22O7T6HE4QHkQAKBLDfVAoogJTQgKcgKKVAfb
 vxH+c0zIX4bXlh+/+aAShXf/1To1BkZtbIxYJX2hx9oec3zO+DK+p1YrAK8O0Lcz
 hleEyVpYhhX90y0HDzFlF9q05O90vYP+hzj8VW+IgkOJ7nWG+KdkiRBkxlwvn0PJ
 Zw4qw9fjZ/MW0Ml2UVQv2lfAaTc8XiasZo1ZEfZ8rK/a0ut+0wLefzWzqm//bJD+
 Ek2x9Om3okg2emeuBkeSWLlZ40fMGfEXn4UQkE7ZCLN6Q/LqSdEIn00MSjJa8C4T
 Z3CVNeHRlgG9C80tbM6rs+2YbWhBj0RPa7woNGZmVJaLIsBrMSC5s9ifvvnamtnE
 wzBm9Qayv67BcQHZOgEgxrSrNc7/tibwvcpGfiT9ONz/PVbMO7eTlRGFnwNGh2Fv
 0caPb8Ge9PLyfc7BXLday/0RM91lu3zTOlnfm6U/KFWPucF+zMFN5KCAGyqComxk
 g+1VxPPpXtCcIFwGYZ1yesKTW6VHFUEb6v5+gkU1UUJhSoz6141AR72DNFm2NA0j
 gk9GJ5ZZzMlFQV6YcrGkpFo0q0DKqSMy3dU1HjT7zMbh09hhJqdT1dyIBEfxJpgu
 LvDI318bvBjwqkdnlRxwQ01GZ3HGGkga0UHjz1LbeYlR59UC2wJWtCoMRYt9Oms4
 d+b7Fmbec2tU18uVtSOP
 =BHn7
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/kraxel/tags/microvm-20200930-pull-request' into staging

microvm: add pcie support.

# gpg: Signature made Wed 30 Sep 2020 18:48:41 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/microvm-20200930-pull-request:
  tests/acpi: update expected data files
  acpi/gpex: no reason to use a method for _CRS
  tests/acpi: add microvm pcie test
  tests/acpi: factor out common microvm test setup
  tests/acpi: add empty tests/data/acpi/microvm/DSDT.pcie file
  tests/acpi: allow updates for expected data files
  microvm/pcie: add 64bit mmio window
  microvm: add pcie support
  microvm: add irq table
  arm: use acpi_dsdt_add_gpex
  acpi: add acpi_dsdt_add_gpex
  move MemMapEntry

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-01 15:28:55 +01:00
Vitaly Kuznetsov 8700a98443 target/i386: always create kvmclock device
QEMU's kvmclock device is only created when KVM PV feature bits for
kvmclock (KVM_FEATURE_CLOCKSOURCE/KVM_FEATURE_CLOCKSOURCE2) are
exposed to the guest. With 'kvm=off' cpu flag the device is not
created and we don't call KVM_GET_CLOCK/KVM_SET_CLOCK upon migration.
It was reported that without these call at least Hyper-V TSC page
clocksouce (which can be enabled independently) gets broken after
migration.

Switch to creating kvmclock QEMU device unconditionally, it seems
to always make sense to call KVM_GET_CLOCK/KVM_SET_CLOCK on migration.
Use KVM_CAP_ADJUST_CLOCK check instead of CPUID feature bits.

Reported-by: Antoine Damhet <antoine.damhet@blade-group.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20200922151934.899555-1-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30 19:11:36 +02:00
Philippe Mathieu-Daudé c834596f79 hw/xen: Split x86-specific declaration from generic hardware ones
xen_hvm_init() is restricted to the X86 architecture.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200908155530.249806-6-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30 19:11:36 +02:00
Philippe Mathieu-Daudé 5650ac00d7 hw/i386/xen: Rename X86/PC specific function as xen_hvm_init_pc()
xen_hvm_init() is only meanful to initialize a X86/PC machine,
rename it as xen_hvm_init_pc().

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200908155530.249806-3-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30 19:11:36 +02:00
Philippe Mathieu-Daudé b2a3b8d787 hw/i386/q35: Remove unreachable Xen code on Q35 machine
Xen accelerator requires specific changes to a machine to be able
to use it. See for example the 'Xen PC' machine configure its PCI
bus calling pc_xen_hvm_init_pci(). There is no 'Xen Q35' machine
declared. This code was probably added while introducing the Q35
machine, based on the existing PC machine (see commit df2d8b3ed4
"Introduce q35 pc based chipset emulator"). Remove the unreachable
code to simplify this file.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20200722082517.18708-1-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30 19:11:36 +02:00
Igor Mammedov b21aa7e01e numa: drop support for '-numa node' (without memory specified)
it was deprecated since 4.1
commit 4bb4a2732e (numa: deprecate implict memory distribution between nodes)

Users of existing VMs, wishing to preserve the same RAM distribution,
should configure it explicitly using ``-numa node,memdev`` options.
Current RAM distribution can be retrieved using HMP command
`info numa` and if separate memory devices (pc|nv-dimm) are present
use `info memory-device` and subtract device memory from output of
`info numa`.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20200911084410.788171-2-imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30 19:09:20 +02:00
Jon Doron 8f814ea1a2 acpi: i386: Move VMBus DSDT entry to SB
Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20200715084326.678715-2-arilou@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30 19:09:20 +02:00
Gerd Hoffmann 8c2d9f9a38 microvm/pcie: add 64bit mmio window
Place the 64bit window at the top of the physical address space, assign
25% of the avaiable address space.  Force cpu.host-phys-bits=on for
microvm machine typs so this actually works reliable.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20200928104256.9241-7-kraxel@redhat.com
2020-09-30 11:29:56 +02:00
Gerd Hoffmann 24db877ab6 microvm: add pcie support
Uses the existing gpex device which is also used as pcie host bridge on
arm/aarch64.  For now only a 32bit mmio window and no ioport support.

It is disabled by default, use "-machine microvm,pcie=on" to enable.
ACPI support must be enabled too because the bus is declared in the
DSDT table.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20200928104256.9241-6-kraxel@redhat.com
2020-09-30 11:29:56 +02:00
Philippe Mathieu-Daudé 8dc007d3d9 qapi: Restrict LostTickPolicy enum to machine code
Restricting LostTickPolicy to machine.json pulls slightly less
QAPI-generated code into user-mode.

Acked-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200913195348.1064154-2-philmd@redhat.com>
[Add rationale to commit message]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-09-29 15:41:35 +02:00
Ani Sinha df4008c9c5 piix4: don't reserve hw resources when hotplug is off globally
When acpi hotplug is turned off for both root pci bus as well as for pci
bridges, we should not generate the related ACPI code for DSDT table or
initialize related hw ports or reserve hw resources. This change makes
sure all those operations are turned off in the case ACPI pci hotplug is
off globally.

In this change, we also make sure ACPI code for the PCNT method are only
added when bsel is enabled for the corresponding pci bus or bridge hotplug
is turned on.

As q35 machines do not use bsel for it's pci buses at this point in time, this
change affects DSDT acpi table for q35 machines as well. Therefore, we will
also need to commit the updated golden master DSDT table acpi binary blobs as
well. Following is the list of blobs which needs updating:

 tests/data/acpi/q35/DSDT
 tests/data/acpi/q35/DSDT.acpihmat
 tests/data/acpi/q35/DSDT.bridge
 tests/data/acpi/q35/DSDT.cphp
 tests/data/acpi/q35/DSDT.dimmpxm
 tests/data/acpi/q35/DSDT.ipmibt
 tests/data/acpi/q35/DSDT.memhp
 tests/data/acpi/q35/DSDT.mmio64
 tests/data/acpi/q35/DSDT.numamem
 tests/data/acpi/q35/DSDT.tis

These tables are updated in the following commit. Without the updated table
blobs, the unit tests would fail with this patch.

Signed-off-by: Ani Sinha <ani@anisinha.ca>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20200918084111.15339-11-ani@anisinha.ca>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-09-29 03:06:12 -04:00
Ani Sinha 15a5b25408 i440fx/acpi: do not add hotplug related amls for cold plugged bridges
Cold plugged bridges are not hot unpluggable, even when their hotplug
property (acpi-pci-hotplug-with-bridge-support) is turned off. Please see
the function acpi_pcihp_pc_no_hotplug(). However, with
the current implementaton, Windows would try to hot-unplug a pci bridge when
it's hotplug switch is off. This is regardless of whether there are devices
attached to the bridge. This is because we add ACPI code like _EJ0 etc for the
pci slot where the bridge is cold plugged.

In this fix, we identify a cold plugged bridge and for cold plugged bridges,
we do not add the appropriate ACPI methods that are used by the OS
to identify a hot-pluggable/unpluggable pci device. After this change, Windows
does not detect the cold plugged pci bridge as ejectable.

As a result of the patch, the following are the changes to the DSDT ACPI
table:

@@ -858,38 +858,33 @@
                     Return (Zero)
                 }

                 Method (_S2D, 0, NotSerialized)  // _S2D: S2 Device State
                 {
                     Return (Zero)
                 }

                 Method (_S3D, 0, NotSerialized)  // _S3D: S3 Device State
                 {
                     Return (Zero)
                 }
             }

             Device (S18)
             {
-                Name (_SUN, 0x03)  // _SUN: Slot User Number
                 Name (_ADR, 0x00030000)  // _ADR: Address
-                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
-                {
-                    PCEJ (BSEL, _SUN)
-                }
             }

             Device (S20)
             {
                 Name (_SUN, 0x04)  // _SUN: Slot User Number
                 Name (_ADR, 0x00040000)  // _ADR: Address
                 Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
                 {
                     PCEJ (BSEL, _SUN)
                 }
             }

             Device (S28)
             {
                 Name (_SUN, 0x05)  // _SUN: Slot User Number
                 Name (_ADR, 0x00050000)  // _ADR: Address
@@ -1148,37 +1143,32 @@
                     PCEJ (BSEL, _SUN)
                 }
             }

             Device (SF8)
             {
                 Name (_SUN, 0x1F)  // _SUN: Slot User Number
                 Name (_ADR, 0x001F0000)  // _ADR: Address
                 Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
                 {
                     PCEJ (BSEL, _SUN)
                 }
             }

             Method (DVNT, 2, NotSerialized)
             {
-                If ((Arg0 & 0x08))
-                {
-                    Notify (S18, Arg1)
-                }
-
                 If ((Arg0 & 0x10))
                 {
                     Notify (S20, Arg1)
                 }

                 If ((Arg0 & 0x20))
                 {
                     Notify (S28, Arg1)
                 }

                 If ((Arg0 & 0x40))
                 {
                     Notify (S30, Arg1)
                 }

                 If ((Arg0 & 0x80))

While at it, I have also updated a stale comment.

Signed-off-by: Ani Sinha <ani@anisinha.ca>
Suggested-by: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20200918084111.15339-6-ani@anisinha.ca>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-09-29 03:06:12 -04:00
Igor Mammedov 998ba95016 x86: acpi: introduce the PCI0.SMI0 ACPI device
When CPU hotplug with SMI has been negotiated, describe the SMI
register block in the DSDT. Pass the ACPI name of the SMI control
register to build_cpus_aml(), so that CPU_SCAN_METHOD can access the
register in the next patch.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20200923094650.1301166-9-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-09-29 02:15:24 -04:00
Igor Mammedov 6d837f1f38 x86: acpi: introduce AcpiPmInfo::smi_on_cpuhp
Translate the "CPU hotplug with SMI" feature bit, from the property
added in the last patch, to a dedicated boolean in AcpiPmInfo.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20200923094650.1301166-8-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-09-29 02:15:24 -04:00
Igor Mammedov c5be7517d6 x86: cpuhp: prevent guest crash on CPU hotplug when broadcast SMI is in use
There were reports of guest crash on CPU hotplug, when using q35 machine
type and OVMF with SMM, due to hotplugged CPU trying to process SMI at
default SMI handler location without it being relocated by firmware first.

Fix it by refusing hotplug if firmware hasn't negotiated CPU hotplug with
SMI support while SMI broadcast is in use.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20200923094650.1301166-3-imammedo@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-09-29 02:15:24 -04:00
Igor Mammedov 00dc02d284 x86: lpc9: let firmware negotiate 'CPU hotplug with SMI' features
It will allow firmware to notify QEMU that firmware requires SMI
being triggered on CPU hot[un]plug, so that it would be able to account
for hotplugged CPU and relocate it to new SMM base and/or safely remove
CPU on unplug.

Using negotiated features, follow up patches will insert SMI upcall
into AML code, to make sure that firmware processes hotplug before
guest OS would attempt to use new CPU.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20200923094650.1301166-2-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-09-29 02:15:24 -04:00
Igor Mammedov 63e79833c4 cphp: remove deprecated cpu-add command(s)
These were deprecated since 4.0, remove both HMP and QMP variants.

Users should use device_add command instead. To get list of
possible CPUs and options, use 'info hotpluggable-cpus' HMP
or query-hotpluggable-cpus QMP command.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200915120403.1074579-1-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-09-29 02:14:30 -04:00
David Hildenbrand d110b6b4d6 pc: fix auto_enable_numa_with_memhp/auto_enable_numa_with_memdev for the 5.0 machine
Unfortunately, a typo sneeked in: we want to set
auto_enable_numa_with_memdev to false, not auto_enable_numa_with_memhp.

Cc: qemu-stable@nongnu.org # v5.1
Fixes: 195784a0cf (numa: Auto-enable NUMA when any memory devices are possible)
Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20200820094828.30348-1-david@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-09-29 02:14:29 -04:00
Peter Maydell 8c1c07929f Pull request
This includes the atomic_ -> qatomic_ rename that touches many files and is
 prone to conflicts.
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEhpWov9P5fNqsNXdanKSrs4Grc8gFAl9rcwsACgkQnKSrs4Gr
 c8hpqQf+OTxEVXMS/RfXRVjsM0RsgDYWyyW1OoA3/XEOt+OrJn4VrEbs7gbe3qxL
 rql73g1fysRSdoLBK1m4hJgZ2Ak5Bbwz26nnyA/quVZWKHqMXQaPTEQpJcGNvwiz
 WlZJvNLVkl3kTnM+eguad7TOoWfp9Uz/f/2Q8mbQ5Y9LZm3rEBZC2hG5KNJWRV1Y
 kdN6D1Y2l85LKd8219XChNCFJdj+ktGFQOIiWb8JG98shH2G+0rv9vhgYmat7qrh
 sSv2Ii+9ZGzxDCUYgpcSiu5CJVe3tqLBgzGnAKtohywGqzvdiZaHJJQipPn51W80
 YyaDuuMObLwzkSOcfxK7DPM8IuJQVg==
 =+5d4
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

This includes the atomic_ -> qatomic_ rename that touches many files and is
prone to conflicts.

# gpg: Signature made Wed 23 Sep 2020 17:08:43 BST
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  qemu/atomic.h: rename atomic_ to qatomic_
  tests: add test-fdmon-epoll
  fdmon-poll: reset npfd when upgrading to fdmon-epoll
  gitmodules: add qemu.org vbootrom submodule
  gitmodules: switch to qemu.org meson mirror
  gitmodules: switch to qemu.org qboot mirror
  docs/system: clarify deprecation schedule
  virtio-crypto: don't modify elem->in/out_sg
  virtio-blk: undo destructive iov_discard_*() operations
  util/iov: add iov_discard_undo()
  virtio: add vhost-user-fs-ccw device
  libvhost-user: handle endianness as mandated by the spec
  MAINTAINERS: add Stefan Hajnoczi as block/nvme.c maintainer

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-09-24 18:48:45 +01:00
Stefan Hajnoczi d73415a315 qemu/atomic.h: rename atomic_ to qatomic_
clang's C11 atomic_fetch_*() functions only take a C11 atomic type
pointer argument. QEMU uses direct types (int, etc) and this causes a
compiler error when a QEMU code calls these functions in a source file
that also included <stdatomic.h> via a system header file:

  $ CC=clang CXX=clang++ ./configure ... && make
  ../util/async.c:79:17: error: address argument to atomic operation must be a pointer to _Atomic type ('unsigned int *' invalid)

Avoid using atomic_*() names in QEMU's atomic.h since that namespace is
used by <stdatomic.h>. Prefix QEMU's APIs with 'q' so that atomic.h
and <stdatomic.h> can co-exist. I checked /usr/include on my machine and
searched GitHub for existing "qatomic_" users but there seem to be none.

This patch was generated using:

  $ git grep -h -o '\<atomic\(64\)\?_[a-z0-9_]\+' include/qemu/atomic.h | \
    sort -u >/tmp/changed_identifiers
  $ for identifier in $(</tmp/changed_identifiers); do
        sed -i "s%\<$identifier\>%q$identifier%g" \
            $(git grep -I -l "\<$identifier\>")
    done

I manually fixed line-wrap issues and misaligned rST tables.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200923105646.47864-1-stefanha@redhat.com>
2020-09-23 16:07:44 +01:00
Igor Mammedov c4332cd1dc smp: drop support for deprecated (invalid topologies)
it's was deprecated since 3.1

Support for invalid topologies is removed, the user must ensure
that topologies described with -smp include all possible cpus,
i.e. (sockets * cores * threads) == maxcpus or QEMU will
exit with error.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20200911133202.938754-1-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-22 16:45:16 -04:00
Eduardo Habkost 8063396bf3 Use OBJECT_DECLARE_SIMPLE_TYPE when possible
This converts existing DECLARE_INSTANCE_CHECKER usage to
OBJECT_DECLARE_SIMPLE_TYPE when possible.

$ ./scripts/codeconverter/converter.py -i \
  --pattern=AddObjectDeclareSimpleType $(git grep -l '' -- '*.[ch]')

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Paul Durrant <paul@xen.org>
Message-Id: <20200916182519.415636-6-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-18 14:12:32 -04:00
Gerd Hoffmann 63bcfe7be0 microvm: enable ramfb
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200915120909.20838-22-kraxel@redhat.com
2020-09-17 14:16:19 +02:00
Gerd Hoffmann e3ab9873d2 microvm: wire up hotplug
The cpu hotplug code handles the initialization of coldplugged cpus
too, so it is needed even in case cpu hotplug is not supported.

Wire cpu hotplug up for microvm.
Without this we get a broken MADT table.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Message-id: 20200915120909.20838-17-kraxel@redhat.com
2020-09-17 14:16:19 +02:00
Gerd Hoffmann 0cca1a918b x86: move cpu hotplug from pc to x86
The cpu hotplug code handles the initialization of coldplugged cpus
too, so it is needed even in case cpu hotplug is not supported.

Move the code from pc to x86, so microvm can use it.

Move both plug and unplug to keep everything in one place, even
though microvm needs plug only.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200915120909.20838-16-kraxel@redhat.com
2020-09-17 14:16:19 +02:00
Gerd Hoffmann 50aef13181 x86: move acpi_dev from pc/microvm
Both pc and microvm machine types have a acpi_dev field.
Move it to the common base type.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200915120909.20838-15-kraxel@redhat.com
2020-09-17 14:16:19 +02:00
Gerd Hoffmann 9927a6329a x86: constify x86_machine_is_*_enabled
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200915120909.20838-14-kraxel@redhat.com
2020-09-17 14:16:19 +02:00
Gerd Hoffmann f6f7e2d88d microvm/acpi: disable virtio-mmio cmdline hack
... in case we are using ACPI.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Message-id: 20200915120909.20838-13-kraxel@redhat.com
2020-09-17 14:16:19 +02:00
Gerd Hoffmann 67eb6a4007 microvm/acpi: use seabios with acpi=on
With acpi=off continue to use qboot.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Message-id: 20200915120909.20838-12-kraxel@redhat.com
2020-09-17 14:16:19 +02:00
Gerd Hoffmann 55c4b06997 microvm/acpi: use GSI 16-23 for virtio
With ACPI enabled and IO-APIC being properly declared in the ACPI tables
we can use interrupt lines 16-23 for virtio and avoid shared interrupts.

With acpi disabled we continue to use lines 5-12.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200915120909.20838-11-kraxel@redhat.com
2020-09-17 14:16:19 +02:00
Gerd Hoffmann 3b98c65f75 microvm/acpi: add acpi_dsdt_add_virtio() for x86
Makes x86 linux kernel find virtio-mmio devices automatically.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200915120909.20838-10-kraxel@redhat.com
2020-09-17 14:16:19 +02:00
Gerd Hoffmann 8045df14bc microvm/acpi: add minimal acpi support
$subject says all.  Can be controlled using -M microvm,acpi=on/off.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200915120909.20838-9-kraxel@redhat.com
2020-09-17 14:16:19 +02:00
Gerd Hoffmann d4e9d577be microvm: make virtio irq base runtime configurable
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200915120909.20838-8-kraxel@redhat.com
2020-09-17 14:16:19 +02:00
Gerd Hoffmann 2025e97dc5 acpi: ged: add x86 device variant.
Set AcpiDeviceIfClass->madt_cpu,
otherwise identical to TYPE_ACPI_GED.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200915120909.20838-6-kraxel@redhat.com
2020-09-17 14:16:19 +02:00
Gerd Hoffmann 3bee1d1d14 microvm: name qboot binary qboot.rom
qboot isn't a bios and shouldnt be named that way.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200915120909.20838-2-kraxel@redhat.com
2020-09-17 14:16:19 +02:00
Peter Maydell 3d9f371b01 Various misc and testing fixes:
- Expand CODING_STYLE.rst a little more
   - usb-host build fix
   - allow check-softfloat unit tests without TCG
   - simplify mips imm_branch so compiler isn't confused
   - mark ppc64abi32 for deprecation
   - more compiler soothing in pch_rev_id
   - allow acceptance to skip missing binaries
   - more a bunch of plugins to contrib
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEEZoWumedRZ7yvyN81+9DbCVqeKkQFAl9Z9wkACgkQ+9DbCVqe
 KkRbkQf9HLRDEUSy/1LqbU7ncHzgCmnlzC0MKCqn/L3e+M916naO3xhu0tbJN9Ks
 nxu9irY1mGrj/gK+gJ9lr50GOvcc8XCFTpE82MisMRWWFeVRt3vYLAql7WcY0ioM
 K6jMMfoVswmVetP034llQhsAt9zvFimL89kp4O4i2Mjw5shsBIPfharXnnhL4EgS
 ykKmUdLWxAJPSOJJA71IAFP9UzMYfXg7/NHFK1SMVOWZjMT18aoa6YDzBpbr4KzX
 4vOvgGK3tBlVuOooSew7By6iR5oBPa5GP7O9Z78osCsyvzJMPcoNxQZyvgnS0Tda
 q6+/QeF9/ooDPkg5Jq6Z8EAsY0q+XA==
 =PIOR
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-fixes-100920-1' into staging

Various misc and testing fixes:

  - Expand CODING_STYLE.rst a little more
  - usb-host build fix
  - allow check-softfloat unit tests without TCG
  - simplify mips imm_branch so compiler isn't confused
  - mark ppc64abi32 for deprecation
  - more compiler soothing in pch_rev_id
  - allow acceptance to skip missing binaries
  - more a bunch of plugins to contrib

# gpg: Signature made Thu 10 Sep 2020 10:51:05 BST
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-testing-fixes-100920-1:
  plugins: move the more involved plugins to contrib
  tests/acceptance: Add Test.fetch_asset(cancel_on_missing=True)
  tests: bump avocado version
  hw/i386: make explicit clearing of pch_rev_id
  configure: don't enable ppc64abi32-linux-user by default
  docs/system/deprecated: mark ppc64abi32-linux-user for deprecation
  target/mips: simplify gen_compute_imm_branch logic
  tests/meson.build: fp tests don't need CONFIG_TCG
  usb-host: restrict workaround to new libusb versions
  CODING_STYLE.rst: flesh out our naming conventions.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-09-12 22:54:32 +01:00
Alex Bennée c768eef18c hw/i386: make explicit clearing of pch_rev_id
Some compilers (notably the Xenial gcc in Travis) fail to spot that
this will always be set if pch_dev_id != 0xffff. Given this is setup
code and using _Pragma to override is equally as ugly lets just remove
the doubt from the compilers mind.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200909112742.25730-8-alex.bennee@linaro.org>
2020-09-10 10:44:01 +01:00
Eduardo Habkost 8110fa1d94 Use DECLARE_*CHECKER* macros
Generated using:

 $ ./scripts/codeconverter/converter.py -i \
   --pattern=TypeCheckMacro $(git grep -l '' -- '*.[ch]')

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-12-ehabkost@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-13-ehabkost@redhat.com>
Message-Id: <20200831210740.126168-14-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-09 09:27:09 -04:00
Eduardo Habkost db1015e92e Move QOM typedefs and add missing includes
Some typedefs and macros are defined after the type check macros.
This makes it difficult to automatically replace their
definitions with OBJECT_DECLARE_TYPE.

Patch generated using:

 $ ./scripts/codeconverter/converter.py -i \
   --pattern=QOMStructTypedefSplit $(git grep -l '' -- '*.[ch]')

which will split "typdef struct { ... } TypedefName"
declarations.

Followed by:

 $ ./scripts/codeconverter/converter.py -i --pattern=MoveSymbols \
    $(git grep -l '' -- '*.[ch]')

which will:
- move the typedefs and #defines above the type check macros
- add missing #include "qom/object.h" lines if necessary

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-9-ehabkost@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-10-ehabkost@redhat.com>
Message-Id: <20200831210740.126168-11-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-09 09:26:43 -04:00
Babu Moger 0a48666a31 Revert "hw/i386: Update structures to save the number of nodes per package"
This reverts commit c24a41bb53.

Remove the EPYC specific apicid decoding and use the generic
default decoding.

Signed-off-by: Babu Moger <babu.moger@amd.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <159889937478.21294.4192291354416942986.stgit@naples-babu.amd.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-02 07:29:26 -04:00
Babu Moger 0a714bff6c Revert "hw/i386: Introduce apicid functions inside X86MachineState"
This reverts commit 6121c7fbfd.

Remove the EPYC specific apicid decoding and use the generic
default decoding.

Signed-off-by: Babu Moger <babu.moger@amd.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <159889935648.21294.8095493980805969544.stgit@naples-babu.amd.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-02 07:29:25 -04:00
Babu Moger dfe7ed0a89 Revert "hw/i386: Move arch_id decode inside x86_cpus_init"
This reverts commit 2e26f4ab3b.

Remove the EPYC specific apicid decoding and use the generic
default decoding.

Signed-off-by: Babu Moger <babu.moger@amd.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <159889934379.21294.15323080164340490855.stgit@naples-babu.amd.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-02 07:29:25 -04:00
Babu Moger fb49865d26 Revert "i386: Fix pkg_id offset for EPYC cpu models"
This reverts commit 7b225762c8.

Remove the EPYC specific apicid decoding and use the generic
default decoding.

Also fix all the references of pkg_offset.

Signed-off-by: Babu Moger <babu.moger@amd.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <159889933119.21294.8112825730577505757.stgit@naples-babu.amd.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-02 07:29:25 -04:00
Eduardo Habkost 30c60f77a8 x86-iommu: Rename QOM type macros
Some QOM macros were using a X86_IOMMU_DEVICE prefix, and others
were using a X86_IOMMU prefix.  Rename all of them to use the
same X86_IOMMU_DEVICE prefix.

This will make future conversion to OBJECT_DECLARE* easier.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20200825192110.3528606-47-ehabkost@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-02 07:29:25 -04:00
Kenta Ishiguro b22c2a68c7 hw/i386/kvm/ioapic.c: fix typo in error message
Fix a typo in an error message for KVM_SET_IRQCHIP ioctl:
"KVM_GET_IRQCHIP" should be "KVM_SET_IRQCHIP".

Fixes: a39c1d47ac ("kvm: x86: Add user space part for in-kernel IOAPIC")
Signed-off-by: Kenta Ishiguro <kentaishiguro@slowstart.org>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Message-Id: <20200717123514.15406-1-kentaishiguro@slowstart.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-09-01 08:59:34 +02:00
Liao Pingfang 830b925094 hw: Remove superfluous breaks
Remove superfluous breaks, as there is a "return" before them.

Signed-off-by: Liao Pingfang <liao.pingfang@zte.com.cn>
Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1594631126-36631-1-git-send-email-wang.yi59@zte.com.cn>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-09-01 08:38:00 +02:00
Peter Maydell 3e39dac035 Machine queue + QOM fixes and cleanups
Bug fix:
 * numa: hmat: fix cache size check (Igor Mammedov)
 
 QOM fixes and cleanups:
 * Move QOM macros and typedefs to header files
 * Use TYPE_* constants on TypeInfo structs
 * Rename QOM type checking macros for consistency
 * Rename enum values and typedefs that conflict with QOM
   type checking amcros
 * Fix typos on QOM type checking macros
 * Delete unused QOM type checking macros that use
   non-existing typedefs
 * hvf: Add missing include
 * xen-legacy-backend: Add missing typedef XenLegacyDevice
 -----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCAAyFiEEWjIv1avE09usz9GqKAeTb5hNxaYFAl9IB2UUHGVoYWJrb3N0
 QHJlZGhhdC5jb20ACgkQKAeTb5hNxaaLcA//RRqE3DOpAqUSDnaPHAVy7UDyjUwN
 1uytGKafNIBytuRmMxK76y2kez/URFxyisdWY91I7KF58S+2unggzSQF59AFt/4W
 VqSLnZxLy22xKaUBQq14VJIa4CxSOg+FfJHhLsBt2gRxbuRbvnScYcFnmZW1b/AB
 hfuibtj5m22/dMKpKquUV0xmC9JAAJqDAzwz88WA2Ybi8wqGc/6tnCQHfVG/4fsF
 TGcIn+0UzfsQlYQ+RmJYaA8FPKOjsjbHMixw3j0MfTTVLMLlqQWJaTreIvipXvC2
 Fo5S2aFBTcsoG5WIT49wbLCL2UbwiHULOC665qBy6bun/EJhhTYe4dq0zM5oTZp/
 LOT6U9BZxdLKQv53HfLDq0fWEKp05/6HZnTcwX6fG8Fi1c06aD7fQgOlwva+3sI6
 F/CuoNrbnZrwtVxi2v3lrGaUrggLZbEs33v5kieeYyszhE+gupDO5nG6zboSM0pf
 UBKHCr/5oMb8U0wEchY7/cDcZtuiMGoFNhsInE41edyA7Ss8OY+R85HQaltMrMJr
 dGnuAMEBOIOaFrJGrK5rwfBqhC4Qv4Ditrj4pJA+GAXNy3buW/TsBFJh1Pm9iiZR
 WwQHjj6kQdFJm+QgmPace3qA1+Pc8JzS44QfFO4JEkHb+/px+4icNSbcsqOxtlY2
 GdJV9NuE94Mf3W0=
 =lK8z
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

Machine queue + QOM fixes and cleanups

Bug fix:
* numa: hmat: fix cache size check (Igor Mammedov)

QOM fixes and cleanups:
* Move QOM macros and typedefs to header files
* Use TYPE_* constants on TypeInfo structs
* Rename QOM type checking macros for consistency
* Rename enum values and typedefs that conflict with QOM
  type checking amcros
* Fix typos on QOM type checking macros
* Delete unused QOM type checking macros that use
  non-existing typedefs
* hvf: Add missing include
* xen-legacy-backend: Add missing typedef XenLegacyDevice

# gpg: Signature made Thu 27 Aug 2020 20:20:05 BST
# gpg:                using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg:                issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request: (53 commits)
  dc390: Use TYPE_DC390_DEVICE constant
  ppce500: Use TYPE_PPC_E500_PCI_BRIDGE constant
  tosa: Use TYPE_TOSA_MISC_GPIO constant
  xlnx-zcu102: Use TYPE_ZCU102_MACHINE constant
  sclpconsole: Use TYPE_* constants
  amd_iommu: Use TYPE_AMD_IOMMU_PCI constant
  nios2_iic: Use TYPE_ALTERA_IIC constant
  etsec: Use TYPE_ETSEC_COMMON constant
  migration: Rename class type checking macros
  swim: Rename struct SWIM to Swim
  s390-virtio-ccw: Rename S390_MACHINE_CLASS macro
  nubus: Rename class type checking macros
  vfio/pci: Move QOM macros to header
  kvm: Move QOM macros to kvm.h
  mptsas: Move QOM macros to header
  pxa2xx: Move QOM macros to header
  rocker: Move QOM macros to header
  auxbus: Move QOM macros to header
  piix: Move QOM macros to header
  virtio-serial-bus: Move QOM macros to header
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-08-28 11:05:08 +01:00
Eduardo Habkost e91830b121 amd_iommu: Use TYPE_AMD_IOMMU_PCI constant
This will make future conversion to use OBJECT_DECLARE* easier.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20200826184334.4120620-4-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-08-27 14:21:48 -04:00
Michael S. Tsirkin af1b80ae56 i386/acpi: fix inconsistent QEMU/OVMF device paths
macOS uses ACPI UIDs to build the DevicePath for NVRAM boot options,
while OVMF firmware gets them via an internal channel through QEMU.
Due to a bug in QEMU ACPI currently UEFI firmware and ACPI have
different values, and this makes the underlying operating system
unable to report its boot option.

The particular node in question is the primary PciRoot (PCI0 in ACPI),
which for some reason gets assigned 1 in ACPI UID and 0 in the
DevicePath. This is due to the _UID assigned to it by build_dsdt in
hw/i386/acpi-build.c Which does not correspond to the primary PCI
identifier given by pcibus_num in hw/pci/pci.c

Reference with the device paths, OVMF startup logs, and ACPI table
dumps (SysReport):
https://github.com/acidanthera/bugtracker/issues/1050

In UEFI v2.8, section "10.4.2 Rules with ACPI _HID and _UID" ends with
the paragraph,

    Root PCI bridges will use the plug and play ID of PNP0A03, This will
    be stored in the ACPI Device Path _HID field, or in the Expanded
    ACPI Device Path _CID field to match the ACPI name space. The _UID
    in the ACPI Device Path structure must match the _UID in the ACPI
    name space.

(See especially the last sentence.)

Considering *extra* root bridges / root buses (with bus number > 0),
QEMU's ACPI generator actually does the right thing; since QEMU commit
c96d9286a6 ("i386/acpi-build: more traditional _UID and _HID for PXB
root buses", 2015-06-11).

However, the _UID values for root bridge zero (on both i440fx and q35)
have always been "wrong" (from UEFI perspective), going back in QEMU to
commit 74523b8501 ("i386: add ACPI table files from seabios",
2013-10-14).

Even in SeaBIOS, these _UID values have always been 1; see commit
a4d357638c57 ("Port rombios32 code from bochs-bios.", 2008-03-08) for
i440fx, and commit ecbe3fd61511 ("seabios: q35: add dsdt", 2012-12-01)
for q35.

Cc: qemu-stable@nongnu.org
Suggested-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Vitaly Cheptsov <vit9696@protonmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2020-08-27 08:27:48 -04:00
Peter Maydell ca489cd037 Machine queue 2020-08-19
Regular post-release changes:
 * hw: add compat machines for 5.2 (Cornelia Huck)
 
 Features:
 * qmp: Expose MachineClass::default_ram_id
   (Michal Privoznik)
 
 Cleanups:
 * qdev: Document qdev_prop_set_drive_err() return value
   (Philippe Mathieu-Daudé)
 -----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCAAyFiEEWjIv1avE09usz9GqKAeTb5hNxaYFAl89Q5MUHGVoYWJrb3N0
 QHJlZGhhdC5jb20ACgkQKAeTb5hNxabojA//TGPJt9ahDopULyUc0sUa53r98l5N
 HovMeUh19FVRD/Iuky+CojqDJwbEqxi06O07pumqye/3wfTNhwToSfBFXZdxsM1b
 vCjeTIVeNThVLYiYMAV36Eqk8jAQnt05/HLOPE9sEa+rjt+TROb8yQwP3YjVoDgJ
 MNyEugJX/BTUV8LsN0t/fWjobWRfQLssAsS7lx6aMgE3VXsFYCPvurWUY4IOB/Yx
 zBOtI3qqHAV5+1m0509Go+bDlQFKIR2/cVdSUdul9pmxmYK3JOi5dddEhiMXbgO6
 Ko8GJVoow6Dr7WNnVRcNKj4oHBcamXS7YCl1ddNyIlOV0yxH20IFqAG4VYE1G7JG
 3eWp21W2NepX+n9KgZSaCKls8A659fkmkYG2O/Qpui4BETpdM5SRpSdAGNt0kXlA
 fXC3iEBoVYdgic5H5yssr5AicDdFRQqgA0YvwleiSc997FkTYq4GdJwK07tk5O3c
 RbfOLNurSHPzvoceU7tDeJa6T6bIF1DCuB/rUupSgKFU3njdh7OgMYaMM5vkN+MO
 dGQ+mw1/LEh5NTgLLlFRVdQBPw98WS88M7qtMQg7ZHMNt7NwP2DyeQxEiZ+0l3p/
 IL519HY0ZJgWnkH7uKf2UclmzOQ24PoKJknhBNN1QiGJUGJWk6pxeEd8xFJlokKi
 26ljxYyTzYQE8tU=
 =0wqi
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

Machine queue 2020-08-19

Regular post-release changes:
* hw: add compat machines for 5.2 (Cornelia Huck)

Features:
* qmp: Expose MachineClass::default_ram_id
  (Michal Privoznik)

Cleanups:
* qdev: Document qdev_prop_set_drive_err() return value
  (Philippe Mathieu-Daudé)

# gpg: Signature made Wed 19 Aug 2020 16:21:55 BST
# gpg:                using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg:                issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request:
  hw: add compat machines for 5.2
  qmp: Expose MachineClass::default_ram_id
  qdev: Document qdev_prop_set_drive_err() return value

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-08-22 14:37:31 +01:00
Marc-André Lureau 2c44220d05 meson: convert hw/arch*
Each architecture's sourceset is placed in an hw_arch dictionary, and picked up
from there when building the per-emulator static_library.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:30:33 -04:00
Paolo Bonzini 2becc36a3e meson: infrastructure for building emulators
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:30:17 -04:00
Paolo Bonzini 243af0225a trace: switch position of headers to what Meson requires
Meson doesn't enjoy the same flexibility we have with Make in choosing
the include path.  In particular the tracing headers are using
$(build_root)/$(<D).

In order to keep the include directives unchanged,
the simplest solution is to generate headers with patterns like
"trace/trace-audio.h" and place forwarding headers in the source tree
such that for example "audio/trace.h" includes "trace/trace-audio.h".

This patch is too ugly to be applied to the Makefiles now.  It's only
a way to separate the changes to the tracing header files from the
Meson rewrite of the tracing logic.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:18:24 -04:00
Cornelia Huck 3ff3c5d317 hw: add compat machines for 5.2
Add 5.2 machine types for arm/i440fx/q35/s390x/spapr.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200819144016.281156-1-cohuck@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-08-19 10:45:48 -04:00
Hogan Wang 2ebc21216f hw/pci-host: save/restore pci host config register
The pci host config register is used to save PCI address for
read/write config data. If guest writes a value to config register,
and then QEMU pauses the vcpu to migrate, after the migration, the guest
will continue to write pci config data, and the write data will be ignored
because of new qemu process losing the config register state.

To trigger the bug:
1. guest is booting in seabios.
2. guest enables the SMRAM in seabios:piix4_apmc_smm_setup, and then
   expects to disable the SMRAM by pci_config_writeb.
3. after guest writes the pci host config register, QEMU pauses vcpu
   to finish migration.
4. guest write of config data(0x0A) fails to disable the SMRAM because
   the config register state is lost.
5. guest continues to boot and crashes in ipxe option ROM due to SMRAM
   in enabled state.

Example Reproducer:

step 1. Make modifications to seabios and qemu for increase reproduction
efficiency, write 0xf0 to 0x402 port notify qemu to stop vcpu after
0x0cf8 port wrote i440 configure register. qemu stop vcpu when catch
0x402 port wrote 0xf0.

seabios:/src/hw/pci.c
@@ -52,6 +52,11 @@ void pci_config_writeb(u16 bdf, u32 addr, u8 val)
         writeb(mmconfig_addr(bdf, addr), val);
     } else {
         outl(ioconfig_cmd(bdf, addr), PORT_PCI_CMD);
+       if (bdf == 0 && addr == 0x72 && val == 0xa) {
+            dprintf(1, "stop vcpu\n");
+            outb(0xf0, 0x402); // notify qemu to stop vcpu
+            dprintf(1, "resume vcpu\n");
+        }
         outb(val, PORT_PCI_DATA + (addr & 3));
     }
 }

qemu:hw/char/debugcon.c
@@ -60,6 +61,9 @@ static void debugcon_ioport_write(void *opaque, hwaddr addr, uint64_t val,
     printf(" [debugcon: write addr=0x%04" HWADDR_PRIx " val=0x%02" PRIx64 "]\n", addr, val);
 #endif

+    if (ch == 0xf0) {
+        vm_stop(RUN_STATE_PAUSED);
+    }
     /* XXX this blocks entire thread. Rewrite to use
      * qemu_chr_fe_write and background I/O callbacks */
     qemu_chr_fe_write_all(&s->chr, &ch, 1);

step 2. start vm1 by the following command line, and then vm stopped.
$ qemu-system-x86_64 -machine pc-i440fx-5.0,accel=kvm\
 -netdev tap,ifname=tap-test,id=hostnet0,vhost=on,downscript=no,script=no\
 -device virtio-net-pci,netdev=hostnet0,id=net0,bus=pci.0,addr=0x13,bootindex=3\
 -device cirrus-vga,id=video0,vgamem_mb=16,bus=pci.0,addr=0x2\
 -chardev file,id=seabios,path=/var/log/test.seabios,append=on\
 -device isa-debugcon,iobase=0x402,chardev=seabios\
 -monitor stdio

step 3. start vm2 to accept vm1 state.
$ qemu-system-x86_64 -machine pc-i440fx-5.0,accel=kvm\
 -netdev tap,ifname=tap-test1,id=hostnet0,vhost=on,downscript=no,script=no\
 -device virtio-net-pci,netdev=hostnet0,id=net0,bus=pci.0,addr=0x13,bootindex=3\
 -device cirrus-vga,id=video0,vgamem_mb=16,bus=pci.0,addr=0x2\
 -chardev file,id=seabios,path=/var/log/test.seabios,append=on\
 -device isa-debugcon,iobase=0x402,chardev=seabios\
 -monitor stdio \
 -incoming tcp:127.0.0.1:8000

step 4. execute the following qmp command in vm1 to migrate.
(qemu) migrate tcp:127.0.0.1:8000

step 5. execute the following qmp command in vm2 to resume vcpu.
(qemu) cont
Before this patch, we get KVM "emulation failure" error on vm2.
This patch fixes it.

Cc: qemu-stable@nongnu.org
Signed-off-by: Hogan Wang <hogan.wang@huawei.com>
Message-Id: <20200727084621.3279-1-hogan.wang@huawei.com>
Reported-by: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-07-27 10:24:39 -04:00
Markus Armbruster ff5b5d5b6d error: Strip trailing '\n' from error string arguments (again)
Tracked down with scripts/coccinelle/err-bad-newline.cocci.

Cc: Peter Xu <peterx@redhat.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200722084048.1726105-3-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Peter Xu <peterx@redhat.com>
2020-07-24 12:56:44 +02:00
Liu Yi L a4544c45e1 intel_iommu: Use correct shift for 256 bits qi descriptor
In chapter 10.4.23 of VT-d spec 3.0, Descriptor Width bit was introduced
in VTD_IQA_REG. Software could set this bit to tell VT-d the QI descriptor
from software would be 256 bits. Accordingly, the VTD_IQH_QH_SHIFT should
be 5 when descriptor size is 256 bits.

This patch adds the DW bit check when deciding the shift used to update
VTD_IQH_REG.

Signed-off-by: Liu Yi L <yi.l.liu@intel.com>
Message-Id: <1593850035-35483-1-git-send-email-yi.l.liu@intel.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-07-22 07:57:07 -04:00
Peter Maydell 2033cc6efa * Make checkpatch say 'qemu' instead of 'kernel' (Aleksandar)
* Fix PSE guests with emulated NPT (Alexander B. #1)
 * Fix leak (Alexander B. #2)
 * HVF fixes (Roman, Cameron)
 * New Sapphire Rapids CPUID bits (Cathy)
 * cpus.c and softmmu/ cleanups (Claudio)
 * TAP driver tweaks (Daniel, Havard)
 * object-add bugfix and testcases (Eric A.)
 * Fix Coverity MIN_CONST and MAX_CONST (Eric B.)
 * "info lapic" improvement (Jan)
 * SSE fixes (Joseph)
 * "-msg guest-name" option (Mario)
 * support for AMD nested live migration (myself)
 * Small i386 TCG fixes (myself)
 * improved error reporting for Xen (myself)
 * fix "-cpu host -overcommit cpu-pm=on" (myself)
 * Add accel/Kconfig (Philippe)
 * iscsi sense handling fixes (Yongji)
 * Misc bugfixes
 -----BEGIN PGP SIGNATURE-----
 
 iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAl8I+tUUHHBib256aW5p
 QHJlZGhhdC5jb20ACgkQv/vSX3jHroPeBAf/boMysOXS3dXzGnKOofcWuCfEhSqL
 xVI9AmHeZfAE1xpaN8Xf7wKjEL80FpIdVZ9835XmQRlvWKHhZ+1C9FFwOKYtOIou
 fJutCqt0xaY+2XRTiIGJr1zV2AU031B0rOGtoRa8ZzkBD3ujManDrsRWNQOtTb+r
 DgdLoTZKu4VzJsKGsC9vUmKdYtt6TvbYsJP75nZmQ138sPCiQ4px1MpROXdX6bpf
 lUeWH4ot5WS6nmTH4JaBtugzfaHo+H37y4t/ME8rt6aq1ILA6itdjYRVLgIep4lc
 qGltz7YqieJzRNQRJ57x3IwgvLvG89Ijpzz3WIrmRKOcJv87PPWPOhLdUg==
 =p0WO
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Make checkpatch say 'qemu' instead of 'kernel' (Aleksandar)
* Fix PSE guests with emulated NPT (Alexander B. #1)
* Fix leak (Alexander B. #2)
* HVF fixes (Roman, Cameron)
* New Sapphire Rapids CPUID bits (Cathy)
* cpus.c and softmmu/ cleanups (Claudio)
* TAP driver tweaks (Daniel, Havard)
* object-add bugfix and testcases (Eric A.)
* Fix Coverity MIN_CONST and MAX_CONST (Eric B.)
* "info lapic" improvement (Jan)
* SSE fixes (Joseph)
* "-msg guest-name" option (Mario)
* support for AMD nested live migration (myself)
* Small i386 TCG fixes (myself)
* improved error reporting for Xen (myself)
* fix "-cpu host -overcommit cpu-pm=on" (myself)
* Add accel/Kconfig (Philippe)
* iscsi sense handling fixes (Yongji)
* Misc bugfixes

# gpg: Signature made Sat 11 Jul 2020 00:33:41 BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (47 commits)
  linux-headers: update again to 5.8
  apic: Report current_count via 'info lapic'
  scripts: improve message when TAP based tests fail
  target/i386: Enable TSX Suspend Load Address Tracking feature
  target/i386: Add SERIALIZE cpu feature
  softmmu/vl: Remove the check for colons in -accel parameters
  cpu-throttle: new module, extracted from cpus.c
  softmmu: move softmmu only files from root
  pc: fix leak in pc_system_flash_cleanup_unused
  cpus: Move CPU code from exec.c to cpus-common.c
  target/i386: Correct the warning message of Intel PT
  checkpatch: Change occurences of 'kernel' to 'qemu' in user messages
  iscsi: return -EIO when sense fields are meaningless
  iscsi: handle check condition status in retry loop
  target/i386: sev: fail query-sev-capabilities if QEMU cannot use SEV
  target/i386: sev: provide proper error reporting for query-sev-capabilities
  KVM: x86: believe what KVM says about WAITPKG
  target/i386: implement undocumented "smsw r32" behavior
  target/i386: remove gen_io_end
  Makefile: simplify MINIKCONF rules
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-11 16:52:24 +01:00
Peter Maydell 827937158b xen patches
Fixes following harden checks in qdev.
 -----BEGIN PGP SIGNATURE-----
 
 iQFOBAABCgA4FiEE+AwAYwjiLP2KkueYDPVXL9f7Va8FAl8IZ6oaHGFudGhvbnku
 cGVyYXJkQGNpdHJpeC5jb20ACgkQDPVXL9f7Va/uhwgAhYVil9DePHVNADAk8nAN
 eRPsw9ukzxUYwKNx88YQA1W1BbEXdy+cBjsf4yxQ6gbfYSzZZKcXJieDVR3gz2uM
 Ll377KCE2QcqC0n+aAJp6fEYJ/CkL/dME/yeqSU6TIq3E0NKfqso3bXcKRHYEQ+z
 2UUsDGgis3P1AZcKuxbj+9p2YZUSwwt/TYo5mtosBxH/YM6vylEmN/1jlsCoOTMh
 6AsZxO3bo+qiZem8qLjh/Cv6nQOKM7o10dXLWteg9D/pRlQwtqeP6PlxXGWNS2eM
 5J+Ee3ho64HvebU3p6Z7Sbb/EZgjKOtg2aHnNFneEDG9MvWb6gMuKczNXFnXrKhu
 Xg==
 =pD/o
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/aperard/tags/pull-xen-20200710' into staging

xen patches

Fixes following harden checks in qdev.

# gpg: Signature made Fri 10 Jul 2020 14:05:46 BST
# gpg:                using RSA key F80C006308E22CFD8A92E7980CF5572FD7FB55AF
# gpg:                issuer "anthony.perard@citrix.com"
# gpg: Good signature from "Anthony PERARD <anthony.perard@gmail.com>" [marginal]
# gpg:                 aka "Anthony PERARD <anthony.perard@citrix.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 5379 2F71 024C 600F 778A  7161 D8D5 7199 DF83 42C8
#      Subkey fingerprint: F80C 0063 08E2 2CFD 8A92  E798 0CF5 572F D7FB 55AF

* remotes/aperard/tags/pull-xen-20200710:
  xen: cleanup unrealized flash devices
  xen: Fix xen-legacy-backend qdev types

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-11 13:56:03 +01:00
Alexander Bulekov 0b33521ea1 pc: fix leak in pc_system_flash_cleanup_unused
tries to fix a leak detected when building with --enable-sanitizers:
./i386-softmmu/qemu-system-i386
Upon exit:
==13576==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 1216 byte(s) in 1 object(s) allocated from:
    #0 0x7f9d2ed5c628 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.5)
    #1 0x7f9d2e963500 in g_malloc (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.)
    #2 0x55fa646d25cc in object_new_with_type /tmp/qemu/qom/object.c:686
    #3 0x55fa63dbaa88 in qdev_new /tmp/qemu/hw/core/qdev.c:140
    #4 0x55fa638a533f in pc_pflash_create /tmp/qemu/hw/i386/pc_sysfw.c:88
    #5 0x55fa638a54c4 in pc_system_flash_create /tmp/qemu/hw/i386/pc_sysfw.c:106
    #6 0x55fa646caa1d in object_init_with_type /tmp/qemu/qom/object.c:369
    #7 0x55fa646d20b5 in object_initialize_with_type /tmp/qemu/qom/object.c:511
    #8 0x55fa646d2606 in object_new_with_type /tmp/qemu/qom/object.c:687
    #9 0x55fa639431e9 in qemu_init /tmp/qemu/softmmu/vl.c:3878
    #10 0x55fa6335c1b8 in main /tmp/qemu/softmmu/main.c:48
    #11 0x7f9d2cf06e0a in __libc_start_main ../csu/libc-start.c:308
    #12 0x55fa6335f8e9 in _start (/tmp/qemu/build/i386-softmmu/qemu-system-i386)

Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20200701145231.19531-1-alxndr@bu.edu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-07-10 18:02:24 -04:00
Markus Armbruster 992861fb1e error: Eliminate error_propagate() manually
When all we do with an Error we receive into a local variable is
propagating to somewhere else, we can just as well receive it there
right away.  The previous two commits did that for sufficiently simple
cases with Coccinelle.  Do it for several more manually.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-37-armbru@redhat.com>
2020-07-10 15:18:08 +02:00
Markus Armbruster 668f62ec62 error: Eliminate error_propagate() with Coccinelle, part 1
When all we do with an Error we receive into a local variable is
propagating to somewhere else, we can just as well receive it there
right away.  Convert

    if (!foo(..., &err)) {
        ...
        error_propagate(errp, err);
        ...
        return ...
    }

to

    if (!foo(..., errp)) {
        ...
        ...
        return ...
    }

where nothing else needs @err.  Coccinelle script:

    @rule1 forall@
    identifier fun, err, errp, lbl;
    expression list args, args2;
    binary operator op;
    constant c1, c2;
    symbol false;
    @@
         if (
    (
    -        fun(args, &err, args2)
    +        fun(args, errp, args2)
    |
    -        !fun(args, &err, args2)
    +        !fun(args, errp, args2)
    |
    -        fun(args, &err, args2) op c1
    +        fun(args, errp, args2) op c1
    )
            )
         {
             ... when != err
                 when != lbl:
                 when strict
    -        error_propagate(errp, err);
             ... when != err
    (
             return;
    |
             return c2;
    |
             return false;
    )
         }

    @rule2 forall@
    identifier fun, err, errp, lbl;
    expression list args, args2;
    expression var;
    binary operator op;
    constant c1, c2;
    symbol false;
    @@
    -    var = fun(args, &err, args2);
    +    var = fun(args, errp, args2);
         ... when != err
         if (
    (
             var
    |
             !var
    |
             var op c1
    )
            )
         {
             ... when != err
                 when != lbl:
                 when strict
    -        error_propagate(errp, err);
             ... when != err
    (
             return;
    |
             return c2;
    |
             return false;
    |
             return var;
    )
         }

    @depends on rule1 || rule2@
    identifier err;
    @@
    -    Error *err = NULL;
         ... when != err

Not exactly elegant, I'm afraid.

The "when != lbl:" is necessary to avoid transforming

         if (fun(args, &err)) {
             goto out
         }
         ...
     out:
         error_propagate(errp, err);

even though other paths to label out still need the error_propagate().
For an actual example, see sclp_realize().

Without the "when strict", Coccinelle transforms vfio_msix_setup(),
incorrectly.  I don't know what exactly "when strict" does, only that
it helps here.

The match of return is narrower than what I want, but I can't figure
out how to express "return where the operand doesn't use @err".  For
an example where it's too narrow, see vfio_intx_enable().

Silently fails to convert hw/arm/armsse.c, because Coccinelle gets
confused by ARMSSE being used both as typedef and function-like macro
there.  Converted manually.

Line breaks tidied up manually.  One nested declaration of @local_err
deleted manually.  Preexisting unwanted blank line dropped in
hw/riscv/sifive_e.c.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-35-armbru@redhat.com>
2020-07-10 15:18:08 +02:00
Markus Armbruster dcfe480544 error: Avoid unnecessary error_propagate() after error_setg()
Replace

    error_setg(&err, ...);
    error_propagate(errp, err);

by

    error_setg(errp, ...);

Related pattern:

    if (...) {
        error_setg(&err, ...);
        goto out;
    }
    ...
 out:
    error_propagate(errp, err);
    return;

When all paths to label out are that way, replace by

    if (...) {
        error_setg(errp, ...);
        return;
    }

and delete the label along with the error_propagate().

When we have at most one other path that actually needs to propagate,
and maybe one at the end that where propagation is unnecessary, e.g.

    foo(..., &err);
    if (err) {
        goto out;
    }
    ...
    bar(..., &err);
 out:
    error_propagate(errp, err);
    return;

move the error_propagate() to where it's needed, like

    if (...) {
        foo(..., &err);
        error_propagate(errp, err);
        return;
    }
    ...
    bar(..., errp);
    return;

and transform the error_setg() as above.

In some places, the transformation results in obviously unnecessary
error_propagate().  The next few commits will eliminate them.

Bonus: the elimination of gotos will make later patches in this series
easier to review.

Candidates for conversion tracked down with this Coccinelle script:

    @@
    identifier err, errp;
    expression list args;
    @@
    -    error_setg(&err, args);
    +    error_setg(errp, args);
         ... when != err
         error_propagate(errp, err);

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-34-armbru@redhat.com>
2020-07-10 15:18:08 +02:00
Markus Armbruster 778a2dc592 qom: Use returned bool to check for failure, Coccinelle part
The previous commit enables conversion of

    foo(..., &err);
    if (err) {
        ...
    }

to

    if (!foo(..., errp)) {
        ...
    }

for QOM functions that now return true / false on success / error.
Coccinelle script:

    @@
    identifier fun = {
        object_apply_global_props, object_initialize_child_with_props,
        object_initialize_child_with_propsv, object_property_get,
        object_property_get_bool, object_property_parse, object_property_set,
        object_property_set_bool, object_property_set_int,
        object_property_set_link, object_property_set_qobject,
        object_property_set_str, object_property_set_uint, object_set_props,
        object_set_propv, user_creatable_add_dict,
        user_creatable_complete, user_creatable_del
    };
    expression list args, args2;
    typedef Error;
    Error *err;
    @@
    -    fun(args, &err, args2);
    -    if (err)
    +    if (!fun(args, &err, args2))
         {
             ...
         }

Fails to convert hw/arm/armsse.c, because Coccinelle gets confused by
ARMSSE being used both as typedef and function-like macro there.
Convert manually.

Line breaks tidied up manually.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200707160613.848843-29-armbru@redhat.com>
2020-07-10 15:18:08 +02:00
Markus Armbruster 5325cc34a2 qom: Put name parameter before value / visitor parameter
The object_property_set_FOO() setters take property name and value in
an unusual order:

    void object_property_set_FOO(Object *obj, FOO_TYPE value,
                                 const char *name, Error **errp)

Having to pass value before name feels grating.  Swap them.

Same for object_property_set(), object_property_get(), and
object_property_parse().

Convert callers with this Coccinelle script:

    @@
    identifier fun = {
        object_property_get, object_property_parse, object_property_set_str,
        object_property_set_link, object_property_set_bool,
        object_property_set_int, object_property_set_uint, object_property_set,
        object_property_set_qobject
    };
    expression obj, v, name, errp;
    @@
    -    fun(obj, v, name, errp)
    +    fun(obj, name, v, errp)

Chokes on hw/arm/musicpal.c's lcd_refresh() with the unhelpful error
message "no position information".  Convert that one manually.

Fails to convert hw/arm/armsse.c, because Coccinelle gets confused by
ARMSSE being used both as typedef and function-like macro there.
Convert manually.

Fails to convert hw/rx/rx-gdbsim.c, because Coccinelle gets confused
by RXCPU being used both as typedef and function-like macro there.
Convert manually.  The other files using RXCPU that way don't need
conversion.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200707160613.848843-27-armbru@redhat.com>
[Straightforwad conflict with commit 2336172d9b "audio: set default
value for pcspk.iobase property" resolved]
2020-07-10 15:18:08 +02:00
Markus Armbruster 62a35aaa31 qapi: Use returned bool to check for failure, Coccinelle part
The previous commit enables conversion of

    visit_foo(..., &err);
    if (err) {
        ...
    }

to

    if (!visit_foo(..., errp)) {
        ...
    }

for visitor functions that now return true / false on success / error.
Coccinelle script:

    @@
    identifier fun =~ "check_list|input_type_enum|lv_start_struct|lv_type_bool|lv_type_int64|lv_type_str|lv_type_uint64|output_type_enum|parse_type_bool|parse_type_int64|parse_type_null|parse_type_number|parse_type_size|parse_type_str|parse_type_uint64|print_type_bool|print_type_int64|print_type_null|print_type_number|print_type_size|print_type_str|print_type_uint64|qapi_clone_start_alternate|qapi_clone_start_list|qapi_clone_start_struct|qapi_clone_type_bool|qapi_clone_type_int64|qapi_clone_type_null|qapi_clone_type_number|qapi_clone_type_str|qapi_clone_type_uint64|qapi_dealloc_start_list|qapi_dealloc_start_struct|qapi_dealloc_type_anything|qapi_dealloc_type_bool|qapi_dealloc_type_int64|qapi_dealloc_type_null|qapi_dealloc_type_number|qapi_dealloc_type_str|qapi_dealloc_type_uint64|qobject_input_check_list|qobject_input_check_struct|qobject_input_start_alternate|qobject_input_start_list|qobject_input_start_struct|qobject_input_type_any|qobject_input_type_bool|qobject_input_type_bool_keyval|qobject_input_type_int64|qobject_input_type_int64_keyval|qobject_input_type_null|qobject_input_type_number|qobject_input_type_number_keyval|qobject_input_type_size_keyval|qobject_input_type_str|qobject_input_type_str_keyval|qobject_input_type_uint64|qobject_input_type_uint64_keyval|qobject_output_start_list|qobject_output_start_struct|qobject_output_type_any|qobject_output_type_bool|qobject_output_type_int64|qobject_output_type_null|qobject_output_type_number|qobject_output_type_str|qobject_output_type_uint64|start_list|visit_check_list|visit_check_struct|visit_start_alternate|visit_start_list|visit_start_struct|visit_type_.*";
    expression list args;
    typedef Error;
    Error *err;
    @@
    -    fun(args, &err);
    -    if (err)
    +    if (!fun(args, &err))
         {
             ...
         }

A few line breaks tidied up manually.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200707160613.848843-19-armbru@redhat.com>
2020-07-10 15:18:08 +02:00
Paul Durrant dd29b5c30c xen: cleanup unrealized flash devices
The generic pc_machine_initfn() calls pc_system_flash_create() which creates
'system.flash0' and 'system.flash1' devices. These devices are then realized
by pc_system_flash_map() which is called from pc_system_firmware_init() which
itself is called via pc_memory_init(). The latter however is not called when
xen_enable() is true and hence the following assertion fails:

qemu-system-i386: hw/core/qdev.c:439: qdev_assert_realized_properly:
Assertion `dev->realized' failed

These flash devices are unneeded when using Xen so this patch avoids the
assertion by simply removing them using pc_system_flash_cleanup_unused().

Reported-by: Jason Andryuk <jandryuk@gmail.com>
Fixes: ebc29e1bea ("pc: Support firmware configuration with -blockdev")
Signed-off-by: Paul Durrant <pdurrant@amazon.com>
Tested-by: Jason Andryuk <jandryuk@gmail.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200624121841.17971-3-paul@xen.org>
Fixes: dfe8c79c44 ("qdev: Assert onboard devices all get realized properly")
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2020-07-10 13:49:16 +01:00