address_space_access_valid is calling address_space_to_flatview but it can
be called outside the RCU lock. To fix it, push the rcu_read_lock/unlock
pair up from flatview_access_valid to address_space_access_valid.
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
address_space_read is calling address_space_to_flatview but it can
be called outside the RCU lock. To fix it, push the rcu_read_lock/unlock
pair up from flatview_read_full to address_space_read's constant size
fast path and address_space_read_full.
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
address_space_write is calling address_space_to_flatview but it can
be called outside the RCU lock. To fix it, push the rcu_read_lock/unlock
pair up from flatview_write to address_space_write.
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
These accessors are called from inlined functions, and the call sequence
is much more expensive than just inlining the access. Move the
struct declaration to memory-internal.h so that exec.c and memory.c
can both use an inline function.
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The MemoryListener is registered on address_space_memory, there is
not much to assert. This currently works because the callback
is invoked only once when the listener is registered, but section->fv
is the _new_ FlatView, not the old one on later calls and that
would break.
This confines address_space_to_flatview to exec.c and memory.c.
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Need to free TCPChardevTelnetInit when session established.
Since at it, switch to use G_SOURCE_* macros.
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180301084438.13594-2-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Fix the following ASAN reports:
==20125==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 24 byte(s) in 1 object(s) allocated from:
#0 0x7f0faea03a38 in __interceptor_calloc (/lib64/libasan.so.4+0xdea38)
#1 0x7f0fae450f75 in g_malloc0 ../glib/gmem.c:124
#2 0x562fffd526fc in machine_start /home/elmarco/src/qemu/tests/sdhci-test.c:180
Indirect leak of 152 byte(s) in 1 object(s) allocated from:
#0 0x7f0faea03850 in malloc (/lib64/libasan.so.4+0xde850)
#1 0x7f0fae450f0c in g_malloc ../glib/gmem.c:94
#2 0x562fffd5d21d in qpci_init_pc /home/elmarco/src/qemu/tests/libqos/pci-pc.c:122
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180215212552.26997-7-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Fixes the following ASAN report:
Direct leak of 128 byte(s) in 8 object(s) allocated from:
#0 0x7fefce311850 in malloc (/lib64/libasan.so.4+0xde850)
#1 0x7fefcdd5ef0c in g_malloc ../glib/gmem.c:94
#2 0x559b976faff0 in create_ahci_io_test /home/elmarco/src/qemu/tests/ahci-test.c:1810
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180215212552.26997-6-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Current GCC has an optimization bug when compiling with ASAN.
See also GCC bug:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84307
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180215212552.26997-3-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Since 218bb57dd7, the -fsanitize=address
check fails with:
config-temp/qemu-conf.c:3:20: error: integer overflow in expression [-Werror=overflow]
return INT32_MIN / -1;
Interestingly, UBSAN check doesn't produce a compile time warning.
Use a test that doesn't have compile time warnings, and make it
specific to UBSAN check.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180215212552.26997-2-marcandre.lureau@redhat.com>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There is already 'device-list-properties' which does most of the job,
however it does not handle everything returned by qom-list-types such
as machines as they inherit directly from TYPE_OBJECT and not TYPE_DEVICE.
It does not handle abstract classes either.
This adds a new qom-list-properties command which prints properties
of a specific class and its instance. It is pretty much a simplified copy
of the device-list-properties handler.
Since it creates an object instance, device properties should appear
in the output as they are copied to QOM properties at the instance_init
hook.
This adds a object_class_property_iter_init() helper to allow class
properties enumeration uses it in the new QMP command to allow properties
listing for abstract classes.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20180301130939.15875-3-aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
ObjectPropertyInfo is more generic and only missing @description.
This adds a description to ObjectPropertyInfo and removes
DevicePropertyInfo so the resulting ObjectPropertyInfo can be used
elsewhere.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20180301130939.15875-2-aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
These options have been marked in a comment in qemu-options.hx as
deprecated in 2009 already (see commit 1ed2fc1fa3), but we
never informed the users about these deprecations. Let's catch up
on that omission now.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1519138892-12836-1-git-send-email-thuth@redhat.com>
[Fix messages. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It can never happen for single-threaded TCG that we have more than one
CPU in the list, while the first one has not been marked as "created".
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180209195239.16048-4-david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We can now also wait for the CPU creation for single-threaded TCG, so we
can move the waiting bits further out.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180209195239.16048-3-david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
All but the first CPU are currently not fully inititalized (e.g.
cpu->created is never set).
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180209195239.16048-2-david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Automatic creation of SCSI controllers for "-drive if=scsi" for x86
machines was quite a bad idea (see description of commit f778a82f0c
for details). This is marked as deprecated since QEMU v2.9.0, and as
far as I know, nobody complained that this is still urgently required
anymore. Time to remove this now.
Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1519123357-13225-1-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It's been marked as deprecated since a very long time already, and
the parameter is not doing anything useful anymore except for printing
a warning, so it's now time to finally get rid of this option.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1519071820-4062-1-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block layer patches
# gpg: Signature made Mon 05 Mar 2018 17:45:51 GMT
# gpg: using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6
* remotes/kevin/tags/for-upstream: (38 commits)
block: Fix NULL dereference on empty drive error
qcow2: Replace align_offset() with ROUND_UP()
block/ssh: Add basic .bdrv_truncate()
block/ssh: Make ssh_grow_file() blocking
block/ssh: Pull ssh_grow_file() from ssh_create()
qemu-img: Make resize error message more general
qcow2: make qcow2_co_create2() a coroutine_fn
block: rename .bdrv_create() to .bdrv_co_create_opts()
Revert "IDE: Do not flush empty CDROM drives"
block: test blk_aio_flush() with blk->root == NULL
block: add BlockBackend->in_flight counter
block: extract AIO_WAIT_WHILE() from BlockDriverState
aio: rename aio_context_in_iothread() to in_aio_context_home_thread()
docs: document how to use the l2-cache-entry-size parameter
specs/qcow2: Fix documentation of the compressed cluster descriptor
iotest 033: add misaligned write-zeroes test via truncate
block: fix write with zero flag set and iovector provided
block: Drop unused .bdrv_co_get_block_status()
vvfat: Switch to .bdrv_co_block_status()
vpc: Switch to .bdrv_co_block_status()
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
# Conflicts:
# include/block/block.h
This pull request supersedes ppc-for-2.12-20180302 which had compile
problems with some gcc versions. It also contains a few additional
patches.
Highlights are:
* New Sam460ex machine type
* Yet more fixes related to vcpu id allocation for spapr
* Numerous macio cleanupsr
* Some enhancements to the Spectre/Meltdown fixes for pseries,
allowing use of a better mitigation for indirect branch based
exploits
* New pseries machine types with Spectre/Meltdown mitigations
enabled (stop gap until libvirt and management understands the
machine options)
* A handful of other fixes
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.12-20180306' into staging
ppc patch queue 2018-03-06
This pull request supersedes ppc-for-2.12-20180302 which had compile
problems with some gcc versions. It also contains a few additional
patches.
Highlights are:
* New Sam460ex machine type
* Yet more fixes related to vcpu id allocation for spapr
* Numerous macio cleanupsr
* Some enhancements to the Spectre/Meltdown fixes for pseries,
allowing use of a better mitigation for indirect branch based
exploits
* New pseries machine types with Spectre/Meltdown mitigations
enabled (stop gap until libvirt and management understands the
machine options)
* A handful of other fixes
# gpg: Signature made Tue 06 Mar 2018 04:01:00 GMT
# gpg: using RSA key 6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg: aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dgibson/tags/ppc-for-2.12-20180306: (30 commits)
PowerPC: Add TS bits into msr_mask
adb: add trace-events for monitoring keyboard/mouse during bus enumeration
PPC: e500: Fix duplicate kernel load and device tree overlap
hw/ppc/spapr,e500: Use new property "stdout-path" for boot console
ppc/spapr-caps: Define the pseries-2.12-sxxm machine type
ppc/spapr-caps: Convert cap-ibs to custom spapr-cap
ppc/spapr-caps: Convert cap-sbbc to custom spapr-cap
ppc/spapr-caps: Convert cap-cfpc to custom spapr-cap
ppc/spapr-caps: Add support for custom spapr_capabilities
target/ppc: Check mask when setting cap_ppc_safe_indirect_branch
macio: remove macio_init() function
macio: move setting of CUDA timebase frequency to macio_common_realize()
mac_newworld: use object link to pass OpenPIC object to macio
openpic: move OpenPIC state and related definitions to openpic.h
openpic: move KVM-specific declarations into separate openpic_kvm.h file
mac_oldworld: use object link to pass heathrow PIC object to macio
macio: move macio related structures and defines into separate macio.h file
heathrow: change heathrow_pic_init() to return the heathrow device
heathrow: convert to trace-events
heathrow: QOMify heathrow PIC
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
During migration, after MSR bits is synced, cpu_post_load() will use
msr_mask to determine which PPC MSR bits will be applied into the target
side. Hardware Transaction Memory(HTM) has been supported since Power8,
but TS0/TS1 bit was not in msr_mask yet. That will prevent target KVM
from loading TM checkpointed values.
This patch adds TS bits into msr_mask for Power8, so that transactional
application can be migrated across qemu.
Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This is useful to help diagnose problems related to address clashes during
MacOS 9 boot.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This patch fixes an incorrect behavior when the -kernel argument has been
specified without -bios. In this case the kernel was loaded twice. At address
32M as a raw image and afterwards by load_elf/load_uimage at the
corresponding load address. In this case the region for the device tree and
the raw kernel image may overlap.
The patch fixes the behavior by loading the kernel image once with
load_elf/load_uimage and skips loading the raw image.
When here do not use bios_name/size for the kernel and use a more generic
name called payload_name/size.
New in v3: dtb must be stored between kernel and initrd because Linux can
handle the dtb only within the first 64MB. Add a comment to
clarify the behavior.
Signed-off-by: David Engraf <david.engraf@sysgo.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Linux kernel commit 2a9d832cc9aae21ea827520fef635b6c49a06c6d
(of: Add bindings for chosen node, stdout-path) deprecated chosen property
"linux,stdout-path" and "stdout".
Introduce the new property "stdout-path" and continue supporting the older
property to remain compatible with existing/older firmware. This older property
can be deprecated after 5 years.
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The sxxm (speculative execution exploit mitigation) machine type is a
variant of the 2.12 machine type with workarounds for speculative
execution vulnerabilities enabled by default.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Convert cap-ibs (indirect branch speculation) to a custom spapr-cap
type.
All tristate caps have now been converted to custom spapr-caps, so
remove the remaining support for them.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
[dwg: Don't explicitly list "?"/help option, trust convention]
[dwg: Fold tristate removal into here, to not break bisect]
[dwg: Fix minor style problems]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
There are currently 2 implemented types of spapr-caps, boolean and
tristate. However there may be a need for caps which don't fit either of
these options. Add a custom capability type for which a list of custom
valid strings can be specified and implement the get/set functions for
these. Also add a field for help text to describe the available options.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
[dwg: Change "help" option to "?" matching qemu conventions]
[dwg: Add ATTRIBUTE_UNUSED to avoid breaking bisect]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Check the character and character_mask field when setting
cap_ppc_safe_indirect_branch based on the hypervisor response
to KVM_PPC_GET_CPU_CHAR. Previously the mask field wasn't checked
which was incorrect.
Fixes: 8acc2ae5 (target/ppc/kvm: Add cap_ppc_safe_[cache/bounds_check/indirect_branch])
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Move the remaining comment into macio.c for reference, then remove the
macio_init() function and instantiate the macio devices for both Old World
and New World machines via qdev_init_nofail() directly.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This removes the last of the functionality from macio_init() in preparation
for its subsequent removal.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Also switch macio_newworld_realize() over to use it rather than using the pic_mem
memory region directly.
Now that both Old World and New World macio devices no longer make use of the
pic_mem memory region directly, we can remove it.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This is to faciliate access to OpenPICState when wiring up the PIC to the macio
controller.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This is needed before the next patch because the target-dependent kvm stub
uses the existing kvm_openpic_connect_vcpu() declaration, making it impossible
to move the device-specific declarations into the same file without breaking
ppc-linux-user compilation.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Also switch macio_oldworld_realize() over to use it rather than using the pic_mem
memory region directly.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This enables the device to be made available during the setup of the Old World
machine. In order to pass back the previous set of IRQs we temporarily introduce
a new pic_irqs parameter until it can be removed.
An additional benefit of this change is that it is also possible to remove the
pic_mem pointer used for macio by accessing the memory region via sysbus.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Now that the ESCC device is instantiated directly via qdev, move it to within
the macio device and wire up the IRQs and memory regions using the sysbus API.
This enables to remove the now-obsolete escc_mem parameter to the macio_init()
function.
(Note this patch also contains small touch-ups to the formatting in
macio_escc_legacy_setup() and ppc_heathrow_init() in order to keep checkpatch
happy)
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The current recommendation is to embed subdevices directly within their container
device, so do this for the DBDMA device.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
VSMT must be set in order to compute VCPU ids. This means that the
following functions must not be called before spapr_set_vsmt_mode()
was called:
- spapr_vcpu_id()
- spapr_is_thread0_in_vcore()
- xics_max_server_number()
We had a recent regression where the latter would be called before VSMT
was set, and broke migration of some old machine types. This patch
adds assert() in the above functions to avoid problems in the future.
Also, since VSMT is really a CPU related thing, spapr_set_vsmt_mode() is
now called from spapr_init_cpus(), just before the first VSMT user.
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Some older machine types create more ICPs than needed. We hence
need to register up to xics_max_server_number() dummy ICPs to
accomodate the migration of these machine types.
Recent VSMT rework changed xics_max_server_number() to return
DIV_ROUND_UP(max_cpus * spapr->vsmt, smp_threads)
instead of
DIV_ROUND_UP(max_cpus * kvmppc_smt_threads(), smp_threads);
The change is okay but it requires spapr->vsmt to be set, which
isn't the case with the current code. This causes the formula to
return zero and we don't create dummy ICPs. This breaks migration
of older guests as reported here:
https://bugzilla.redhat.com/show_bug.cgi?id=1549087
The dummy ICP workaround doesn't really have a dependency on XICS
itself. But it does depend on proper VCPU id numbering and it must
be applied before creating vCPUs (ie, creating real ICPs). So this
patch moves the workaround to spapr_init_cpus(), which already
assumes VSMT to be set.
Fixes: 72194664c8 ("spapr: use spapr->vsmt to compute VCPU ids")
Reported-by: Lukas Doktor <ldoktor@redhat.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Add emulation of aCube Sam460ex board based on AMCC 460EX embedded SoC.
This is not a complete implementation yet with a lot of components
still missing but enough for the U-Boot firmware to start and to boot
a Linux kernel or AROS.
Signed-off-by: François Revol <revol@free.fr>
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This is the PCIX controller found in newer 440 core SoCs e.g. the
AMMC 460EX. The device tree refers to this as plb-pcix compared to
the plb-pci controller in older 440 SoCs.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
[dwg: Remove hwaddr from trace-events, that doesn't work with some
trace backends]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
