Commit graph

91731 commits

Author SHA1 Message Date
Thomas Huth eea9453a01 Move the l2tpv3 test from configure to meson.build
And while we're at it, also provide a proper entry for this feature
in meson_options.txt, so that people who don't need it have a knob
to disable this feature.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20211028185910.1729744-3-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:28 +01:00
Paolo Bonzini 6ed3e1482b meson: remove unnecessary coreaudio test program
AudioGetCurrentHostTime has been present forever, so the test is not
enforcing a specific version of macOS.  In fact the test was broken
since it was not linking against the coreaudio dependency; just remove it.

Fixes: 87430d5b13 ("configure, meson: move audio driver detection to Meson", 2021-10-14)
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:28 +01:00
Paolo Bonzini 78cb330e91 meson: remove pointless warnings
Meson tests sometimes warn if the required libraries and headers are present but
a test program fails to link.  In the case of DirectSound and OSS, however, there
is no test program so there is no need to warn.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:28 +01:00
Thomas Huth ab486f165b meson.build: Allow to disable OSS again
If sys/soundcard.h is available, it is currently not possible to
disable OSS with the --disable-oss or --without-default-features
configure switches. Improve the check in meson.build to fix this.

Fixes: 87430d5b13 ("configure, meson: move audio driver detection to Meson")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20211102105822.773131-1-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:28 +01:00
Paolo Bonzini 6638cae5f6 meson: bump submodule to 0.59.3
This gains some bugfixes, especially:

- it fixes the introspection of array options.  While technically we
still support Meson 0.58.2, this issue only appears when adding a new
option and not if the user is just building QEMU.  In the relatively
rare case of a contributor using --meson to point to a 0.58 version,
review can catch spurious changes to scripts/meson-buildoptions.sh
easily.

- it fixes "meson test" when it is not the process group leader.  Make is
the process group leader when "make check" invokes "meson test", so this
is a requirement for using it as a test harness.

Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:28 +01:00
Mark Cave-Ayland fccec5ce17 qtest/am53c974-test: add test for cancelling in-flight requests
Based upon the qtest reproducer posted to Gitlab issue #663 at
https://gitlab.com/qemu-project/qemu/-/issues/663.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20211101183516.8455-3-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:27 +01:00
Mark Cave-Ayland de7e2cb155 esp: ensure in-flight SCSI requests are always cancelled
There is currently a check in esp_select() to cancel any in-flight SCSI requests
to ensure that issuing multiple select commands without continuing through the
rest of the ESP state machine ignores all but the last SCSI request. This is
also enforced through the addition of assert()s in esp_transfer_data() and
scsi_read_data().

The get_cmd() function does not call esp_select() when TC == 0 which means it is
possible for a fuzzer to trigger these assert()s by sending a select command when
TC == 0 immediately after a valid SCSI CDB has been submitted.

Since esp_select() is only called from get_cmd(), hoist the check to cancel
in-flight SCSI requests from esp_select() into get_cmd() to ensure it is always
called when executing a select command to initiate a new SCSI request.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Closes: https://gitlab.com/qemu-project/qemu/-/issues/662
Closes: https://gitlab.com/qemu-project/qemu/-/issues/663
Message-Id: <20211101183516.8455-2-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:27 +01:00
Maxim Levitsky cabf9862e4 KVM: SVM: add migration support for nested TSC scaling
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20211101132300.192584-4-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:27 +01:00
Pavel Dovgalyuk 6aedeb650e hw/i386: fix vmmouse registration
According to the logic of vmmouse_update_handler function,
vmmouse should be registered as an event handler when
it's status is zero.
vmmouse_read_id resets the status but does not register
the handler.
This patch adds vmmouse registration and activation when
status is reset.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Message-Id: <163524204515.1914131.16465061981774791228.stgit@pasha-ThinkPad-X280>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:27 +01:00
Paolo Bonzini 22afb46e7c watchdog: remove select_watchdog_action
Instead of invoking select_watchdog_action from both HMP and command line,
go directly from HMP to QMP and use QemuOpts as the intermediary for the
command line.

This makes -watchdog-action explicitly a shortcut for "-action watchdog",
so that "-watchdog-action" and "-action watchdog" override each other
based on the position on the command line; previously, "-action watchdog"
always won.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:27 +01:00
Paolo Bonzini d12b64eaeb vl: deprecate -watchdog
-watchdog is the same as -device except that it is case insensitive (and it
allows only watchdog devices of course).  Now that "-device help" can list
as such the available watchdog devices, we can deprecate it.

Note that even though -watchdog tries to be case insensitive, it fails
at that: "-watchdog i6300xyz" fails with "Unknown -watchdog device",
but "-watchdog i6300ESB" also fails (when the generated -device option
is processed) with an error "'i6300ESB' is not a valid device model name".
For this reason, the documentation update does not mention the case
insensitivity of -watchdog.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:27 +01:00
Paolo Bonzini b10cb62752 watchdog: add information from -watchdog help to -device help
List all watchdog devices in a separate category, and populate
their descriptions.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:27 +01:00
Jean-Philippe Brucker 739b38630c hw/i386: Rename default_bus_bypass_iommu
Since commit d8fb7d0969 ("vl: switch -M parsing to keyval"), machine
parameter definitions cannot use underscores, because keyval_dashify()
transforms them to dashes and the parser doesn't find the parameter.

This affects option default_bus_bypass_iommu which was introduced in the
same release:

$ qemu-system-x86_64 -M q35,default_bus_bypass_iommu=on
qemu-system-x86_64: Property 'pc-q35-6.1-machine.default-bus-bypass-iommu' not found

Rename the parameter to "default-bus-bypass-iommu". Passing
"default_bus_bypass_iommu" is still valid since the underscore are
transformed automatically.

Fixes: c9e96b04fc ("hw/i386: Add a default_bus_bypass_iommu pc machine option")
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Message-Id: <20211025104737.1560274-1-jean-philippe@linaro.org>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:27 +01:00
Alexander Graf a443c3e225 hvf: Avoid mapping regions < PAGE_SIZE as ram
HVF has generic memory listener code that adds all RAM regions as HVF RAM
regions. However, HVF can only handle page aligned, page granule regions.

So let's ignore regions that are not page aligned and sized. They will be
trapped as MMIO instead.

Signed-off-by: Alexander Graf <agraf@csgraf.de>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211025132147.28308-1-agraf@csgraf.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:27 +01:00
Paolo Bonzini ff66ee5369 configure: do not duplicate CPU_CFLAGS into QEMU_LDFLAGS
Since commit 4dba278908 ("configure, meson: move CPU_CFLAGS out of
QEMU_CFLAGS"), CPU_CFLAGS is included in the link commands both during
configure and (via config-meson.cross) during meson.  It need not be
added separately to QEMU_LDFLAGS.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:27 +01:00
Paolo Bonzini 605a927198 configure: remove useless NPTL probe
Using a linuxthreads system with a recent QEMU will have bigger problems
than just not having NPTL.  Remove the unnecessary check.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:27 +01:00
Paolo Bonzini 3ca8ce720f target/i386: use DMA-enabled multiboot ROM for new-enough QEMU machine types
As long as fw_cfg supports DMA, the new ROM can be used also on older
machine types because it has the same size as the existing one.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:27 +01:00
Marcus Hähnel 48972f8cad optionrom: add a DMA-enabled multiboot ROM
Add a new option rom for the multiboot loader, using DMA transfers to copy
data instead of "rep insb".

This significantly lowers QEMU's startup latency by a factor of about 40,
for example, going from 30sec to 0.8sec when loading modules of 120MB
in size.

Signed-off-by: Marcus Hähnel <marcus.haehnel@kernkonzept.com>
Signed-off-by: Adam Lackorzynski <adam@l4re.org>
[Modified to keep the non-DMA code depending on #ifdef USE_FW_CFG_DMA;
 do not write below stack. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:27 +01:00
Paolo Bonzini f014c97459 target/i386: move linuxboot_dma_enabled to X86MachineState
This removes a parameter from x86_load_linux, and will avoid code
duplication between the linux and multiboot cases once multiboot
starts to support DMA.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:27 +01:00
Alex Bennée 0b09d44164 MAINTAINERS: update location of microvm docs
Fixes: e8eee8d3d9 ("docs: Move microvm.rst into the system manual")

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20211012151447.4147923-1-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:21 +01:00
Eugenio Pérez a89b34be5e util: Make some iova_tree parameters const
As qemu guidelines:
Unless a pointer is used to modify the pointed-to storage, give it the
"const" attribute.

In the particular case of iova_tree_find it allows to enforce what is
requested by its comment, since the compiler would shout in case of
modifying or freeing the const-qualified returned pointer.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211013182713.888753-2-eperezma@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:21 +01:00
Helge Konetzka 9840999112 configure/optionrom: Fix MSYS2 multiboot.bin issue
This patch enables native builds on MSYS2 with symlinks disabled.

Signed-off-by: Helge Konetzka <hk@zapateado.de>
Message-Id: <2b5ab039-8495-b55f-03f1-ecfd996907a9@zapateado.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:21 +01:00
Jessica Clarke ffd205ef29 Partially revert "build: -no-pie is no functional linker flag"
This partially reverts commit bbd2d5a812.

This commit was misguided and broke using --disable-pie on any distro
that enables PIE by default in their compiler driver, including Debian
and its derivatives. Whilst -no-pie is not a linker flag, it is a
compiler driver flag that ensures -pie is not automatically passed by it
to the linker. Without it, all compile_prog checks will fail as any code
built with the explicit -fno-pie will fail to link with the implicit
default -pie due to trying to use position-dependent relocations. The
only bug that needed fixing was LDFLAGS_NOPIE being used as a flag for
the linker itself in pc-bios/optionrom/Makefile.

Note this does not reinstate exporting LDFLAGS_NOPIE, as it is unused,
since the only previous use was the one that should not have existed. I
have also updated the comment for the -fno-pie and -no-pie checks to
reflect what they're actually needed for.

Fixes: bbd2d5a812
Cc: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Jessica Clarke <jrtc27@jrtc27.com>
Message-Id: <20210805192545.38279-1-jrtc27@jrtc27.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:20 +01:00
Peter Xu af7d106e3e Makefile: Fix cscope issues on MacOS and soft links
This patch fixes actually two issues with 'make cscope'.

Firstly, it fixes the command for MacOS "find" command as MacOS will append the
full path of "$(SRC_PATH)/" before each found entry, then after the final "./"
replacement trick it'll look like (e.g., "qapi/qmp-dispatch.c"):

  /qapi/qmp-dispatch.c

Which will point to the root directory instead.

Fix it by simply remove the "/" in "$(SRC_PATH)/" of "find-src-path", then
it'll work for at least both Linux and MacOS.

The other OS-independent issue is to start proactively ignoring soft links when
generating tags, otherwise by default on master branch we'll see this error
when "make cscope":

cscope: cannot find file subprojects/libvhost-user/include/atomic.h

This patch should fix the two issues altogether.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210804132328.41353-3-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:20 +01:00
Peter Xu b8c9ed15fd Makefile: Fix gtags generation
We should use "-print" or otherwise all "-prone" is ignored.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210804132328.41353-2-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:20 +01:00
Philippe Mathieu-Daudé a895143894 block/nvme: Extract nvme_free_queue() from nvme_free_queue_pair()
Instead of duplicating code, extract the common helper to free
a single queue.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211006164931.172349-4-philmd@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-11-02 15:49:13 +01:00
Philippe Mathieu-Daudé 53cedeaaee block/nvme: Display CQ/SQ pointer in nvme_free_queue_pair()
For debugging purpose it is helpful to know the CQ/SQ pointers.
We already have a trace event in nvme_free_queue_pair(), extend
it to report these pointer addresses.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211006164931.172349-3-philmd@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-11-02 15:49:12 +01:00
Philippe Mathieu-Daudé 4a613bd862 block/nvme: Automatically free qemu_memalign() with QEMU_AUTO_VFREE
Since commit 4d324c0bf6 ("introduce QEMU_AUTO_VFREE") buffers
allocated by qemu_memalign() can automatically freed when using
the QEMU_AUTO_VFREE macro. Use it to simplify a bit.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211006164931.172349-2-philmd@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-11-02 15:48:55 +01:00
Richard Henderson 91e8394415 Migration Pull request
Hi
 
 this includes pending bits of migration patches.
 
 - virtio-mem support by David Hildenbrand
 - dirtyrate improvements by Hyman Huang
 - fix rdma wrid by Li Zhijian
 - dump-guest-memory fixes by Peter Xu
 
 Pleas apply.
 
 Thanks, Juan.
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Merge remote-tracking branch 'remotes/juanquintela/tags/migration-20211031-pull-request' into staging

Migration Pull request

Hi

this includes pending bits of migration patches.

- virtio-mem support by David Hildenbrand
- dirtyrate improvements by Hyman Huang
- fix rdma wrid by Li Zhijian
- dump-guest-memory fixes by Peter Xu

Pleas apply.

Thanks, Juan.

# gpg: Signature made Mon 01 Nov 2021 06:03:44 PM EDT
# gpg:                using RSA key 1899FF8EDEBF58CCEE034B82F487EF185872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>" [full]
# gpg:                 aka "Juan Quintela <quintela@trasno.org>" [full]

* remotes/juanquintela/tags/migration-20211031-pull-request:
  migration/dirtyrate: implement dirty-bitmap dirtyrate calculation
  memory: introduce total_dirty_pages to stat dirty pages
  migration/ram: Handle RAMBlocks with a RamDiscardManager on background snapshots
  migration/ram: Factor out populating pages readable in ram_block_populate_pages()
  migration: Simplify alignment and alignment checks
  migration/postcopy: Handle RAMBlocks with a RamDiscardManager on the destination
  virtio-mem: Drop precopy notifier
  migration/ram: Handle RAMBlocks with a RamDiscardManager on the migration source
  virtio-mem: Implement replay_discarded RamDiscardManager callback
  memory: Introduce replay_discarded callback for RamDiscardManager
  dump-guest-memory: Block live migration
  migration: Add migrate_add_blocker_internal()
  migration: Make migration blocker work for snapshots too
  migration/dirtyrate: implement dirty-ring dirtyrate calculation
  migration/dirtyrate: move init step of calculation to main thread
  migration/dirtyrate: adjust order of registering thread
  migration/dirtyrate: introduce struct and adjust DirtyRateStat
  memory: make global_dirty_tracking a bitmask
  KVM: introduce dirty_pages and kvm_dirty_ring_enabled
  migration/rdma: Fix out of order wrid

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-11-02 10:07:27 -04:00
Philippe Mathieu-Daudé 6f08c9c531 Revert "elf: Relax MIPS' elf_check_arch() to accept EM_NANOMIPS too"
Per the "P32 Porting Guide" (rev 1.2) [1], chapter 2:

  p32 ABI Overview
  ----------------

  The Application Binary Interface, or ABI, is the set of rules
  that all binaries must follow in order to run on a nanoMIPS
  system. This includes, for example, object file format,
  instruction set, data layout, subroutine calling convention,
  and system call numbers. The ABI is one part of the mechanism
  that maintains binary compatibility across all nanoMIPS platforms.

  p32 improves on o32 to provide an ABI that is efficient in both
  code density and performance. p32 is required for the nanoMIPS
  architecture.

So far QEMU only support the MIPS o32 / n32 / n64 ABIs. The p32 ABI
is not implemented, therefore we can not run any nanoMIPS binary.

Revert commit f72541f3a5 ("elf: Relax MIPS' elf_check_arch() to
accept EM_NANOMIPS too").

See also the "ELF ABI Supplement" [2].

[1] http://codescape.mips.com/components/toolchain/nanomips/2019.03-01/docs/MIPS_nanoMIPS_p32_ABI_Porting_Guide_01_02_DN00184.pdf
[2] http://codescape.mips.com/components/toolchain/nanomips/2019.03-01/docs/MIPS_nanoMIPS_ABI_supplement_01_03_DN00179.pdf

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211101114800.2692157-1-f4bug@amsat.org>
2021-11-02 14:35:22 +01:00
BALATON Zoltan 4f3b0a4d75 hw/usb/vt82c686-uhci-pci: Use ISA instead of PCI interrupts
This device is part of a superio/ISA bridge chip and IRQs from it are
routed to an ISA interrupt set by the Interrupt Line PCI config
register. Implement this in a vt82c686-uhci-pci specific irq handler
Using via_isa_set_irq().

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <8d7ed385e33a847d8ddc669163a68b5ca57f82ce.1635161629.git.balaton@eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
BALATON Zoltan e4f5b93986 usb/uhci: Replace pci_set_irq with qemu_set_irq
Instead of using pci_set_irq, store the irq in the device state and
use it explicitly so variants having different interrupt handling can
use their own.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <b39066e03c8731f4197d50bc79b403f797599999.1635161629.git.balaton@eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
BALATON Zoltan ece29df33b usb/uhci: Disallow user creating a vt82c686-uhci-pci device
Because this device only works as part of VIA superio chips set user
creatable to false. Since the class init method is common for UHCI
variants introduce a flag in UHCIInfo for this.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <e6abf1f19ca72bbc2d8a5a6aa941edbf87a9845f.1635161629.git.balaton@eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
BALATON Zoltan d3647ef1fd usb/uhci: Misc clean up
Fix a comment for coding style so subsequent patch will not get
checkpatch error and simplify and shorten uhci_update_irq().

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <b68a57dfcf181e73272b4dc951f8cc6e76b0d182.1635161629.git.balaton@eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
Philippe Mathieu-Daudé 675cf7817c target/mips: Remove obsolete FCR0_HAS2008 comment on P5600 CPU
FCR0_HAS2008 flag has been enabled in commit ba5c79f262
("target-mips: indicate presence of IEEE 754-2008 FPU in
R6/R5+MSA CPUs"), so remove the obsolete FIXME comment.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211028212103.2126176-1-f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
Philippe Mathieu-Daudé ba7b6f025b target/mips: Fix Loongson-3A4000 MSAIR config register
When using the Loongson-3A4000 CPU, the MSAIR is returned with a
zero value (because unimplemented). Checking on real hardware,
this value appears incorrect:

  $ cat /proc/cpuinfo
  system type     : generic-loongson-machine
  machine         : loongson,generic
  cpu model       : Loongson-3 V0.4  FPU V0.1
  model name      : Loongson-3A R4 (Loongson-3A4000) @ 1800MHz
  isa             : mips1 mips2 mips3 mips4 mips5 mips32r1 mips32r2 mips64r1 mips64r2
  ASEs implemented        : vz msa loongson-mmi loongson-cam loongson-ext loongson-ext2
  ...

Checking the CFCMSA opcode result with gdb we get 0x60140:

  Breakpoint 1, 0x00000001200037c4 in main ()
  1: x/i $pc
  => 0x1200037c4 <main+52>:  cfcmsa       v0,msa_ir
  (gdb) si
  0x00000001200037c8 in main ()
  (gdb) i r v0
  v0: 0x60140

MSAIR bits 17 and 18 are "reserved" per the spec revision 1.12,
so mask them out, and set MSAIR=0x0140 for the Loongson-3A4000
CPU model added in commit af868995e1.

Cc: Huacai Chen <chenhuacai@kernel.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211026180920.1085516-1-f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
Philippe Mathieu-Daudé 73053f6228 target/mips: Remove one MSA unnecessary decodetree overlap group
Only the MSA generic opcode was overlapping with the other
instructions. Since the previous commit removed it, we can
now remove the overlap group. The decodetree script forces
us to re-indent the opcodes.

Diff trivial to review using `git-diff --ignore-all-space`.

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211028210843.2120802-32-f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
Philippe Mathieu-Daudé 75d12c8c24 target/mips: Remove generic MSA opcode
All opcodes have been converted to decodetree. The generic
MSA handler is now pointless, remove it.

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211028210843.2120802-31-f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
Philippe Mathieu-Daudé 643ec9022e target/mips: Convert CTCMSA opcode to decodetree
Convert the CTCMSA (Copy To Control MSA register) opcode
to decodetree. Since it overlaps with the SLDI opcode,
use a decodetree overlap group.

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211028210843.2120802-30-f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
Philippe Mathieu-Daudé 6f74237691 target/mips: Convert CFCMSA opcode to decodetree
Convert the CFCMSA (Copy From Control MSA register) opcode
to decodetree. Since it overlaps with the SPLATI opcode,
use a decodetree overlap group.

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211028210843.2120802-29-f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
Philippe Mathieu-Daudé 62ba0e855a target/mips: Convert MSA MOVE.V opcode to decodetree
Convert the MOVE.V opcode (Vector Move) to decodetree.

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211028210843.2120802-28-f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
Philippe Mathieu-Daudé 97fe675519 target/mips: Convert MSA COPY_S and INSERT opcodes to decodetree
Convert the COPY_S (Element Copy to GPR Signed) opcode
and INSERT (GPR Insert Element) opcode to decodetree.

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211028210843.2120802-27-f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
Philippe Mathieu-Daudé 2f2745c81a target/mips: Convert MSA COPY_U opcode to decodetree
Convert the COPY_U opcode (Element Copy to GPR Unsigned) to
decodetree.

Since the 'n' field is a constant value, use tcg_constant_i32()
instead of a TCG temporary.

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211028210843.2120802-26-f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
Philippe Mathieu-Daudé 0a510c934c target/mips: Convert MSA ELM instruction format to decodetree
Convert instructions with an immediate element index
and data format df/n to decodetree.

Since the 'data format' and 'n' fields are constant values,
use tcg_constant_i32() instead of a TCG temporaries.

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211028210843.2120802-25-f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
Philippe Mathieu-Daudé 0a086d2e80 target/mips: Convert MSA 3R instruction format to decodetree (part 4/4)
Convert 3-register operations to decodetree.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211028210843.2120802-24-f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
Philippe Mathieu-Daudé c79db8c239 target/mips: Convert MSA 3R instruction format to decodetree (part 3/4)
Convert BINSL (Vector Bit Insert Left) and BINSR (Vector Bit
Insert Right) opcodes to decodetree.

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211028210843.2120802-23-f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
Philippe Mathieu-Daudé f18708a53a target/mips: Convert MSA 3R instruction format to decodetree (part 2/4)
Convert 3-register operations to decodetree.

Per the Encoding of Operation Field for 3R Instruction Format'
(Table 3.25), these instructions are not defined for the BYTE
format. Therefore the TRANS_DF_iii_b() macro returns 'false'
in that case, because no such instruction is decoded.

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211028210843.2120802-22-f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
Philippe Mathieu-Daudé 67bedef51a target/mips: Convert MSA 3R instruction format to decodetree (part 1/4)
Convert 3-register operations to decodetree.

Since the 'data format' field is a constant value, use
tcg_constant_i32() instead of a TCG temporary.

Note, the format definition could be named @3rf_b (for
3R with a df field BYTE-based) but since the instruction
class is named '3R', we simply call the format @3r to
ease reviewing the msa.decode file.
However we directly call the trans_msa_3rf() function,
which handles the BYTE-based df field.

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211028210843.2120802-21-f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
Philippe Mathieu-Daudé 2d5246f305 target/mips: Convert MSA 3RF instruction format to decodetree (DF_WORD)
Convert 3-register floating-point or fixed-point operations
to decodetree.

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211028210843.2120802-20-f4bug@amsat.org>
2021-11-02 14:32:32 +01:00
Philippe Mathieu-Daudé ff29e5d3c0 target/mips: Convert MSA 3RF instruction format to decodetree (DF_HALF)
Convert 3-register floating-point or fixed-point operations
to decodetree.

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211028210843.2120802-19-f4bug@amsat.org>
2021-11-02 14:32:32 +01:00