Commit Graph

442 Commits

Author SHA1 Message Date
Alex Bennée
44e7948967 contrib/plugins: add compat for g_memdup2
We were premature if bumping this because some of our builds are still
on older glibs. Just copy the compat handler for now and we can remove
it later.

Fixes: ee293103b0 (plugins: update lockstep to use g_memdup2)
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2161
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-14-alex.bennee@linaro.org>
2024-07-30 11:44:21 +01:00
Alex Bennée
f0220d747a contrib/plugins: be more vocal building
With the conversion to meson and removing the old QEMU Makefile
baggage we became very silent when building the plugins. Bring in a
copy of the quiet-command logic (and some magic COMMAs) so we can at
least assure developers we are building them.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2457
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-13-alex.bennee@linaro.org>
2024-07-30 11:44:21 +01:00
Peter Maydell
33ef9cdc28 contrib/plugins/cache.c: Remove redundant check of l2_access
In append_stats_line(), we have an expression
   l2_access ? l2_miss_rate : 0.0
But this is inside an if (l2_access && l2_misses) { ... } block,
so Coverity points out that the false part of the ?: is dead code.

Remove the unnecessary test.

Resolves: Coverity CID 1522458
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240725164851.1930964-1-peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-12-alex.bennee@linaro.org>
2024-07-30 11:44:18 +01:00
Richard Henderson
43f59bf765 * target/i386/kvm: support for reading RAPL MSRs using a helper program
* hpet: emulation improvements
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* target/i386/kvm: support for reading RAPL MSRs using a helper program
* hpet: emulation improvements

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# gpg:                issuer "pbonzini@redhat.com"
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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
  hpet: avoid timer storms on periodic timers
  hpet: store full 64-bit target value of the counter
  hpet: accept 64-bit reads and writes
  hpet: place read-only bits directly in "new_val"
  hpet: remove unnecessary variable "index"
  hpet: ignore high bits of comparator in 32-bit mode
  hpet: fix and cleanup persistence of interrupt status
  Add support for RAPL MSRs in KVM/Qemu
  tools: build qemu-vmsr-helper
  qio: add support for SO_PEERCRED for socket channel
  target/i386: do not crash if microvm guest uses SGX CPUID leaves

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-07-24 11:25:40 +10:00
Richard Henderson
5885bcef3d virtio,pci,pc: features,fixes
pci: Initial support for SPDM Responders
 cxl: Add support for scan media, feature commands, device patrol scrub
     control, DDR5 ECS control, firmware updates
 virtio: in-order support
 virtio-net: support for SR-IOV emulation (note: known issues on s390,
                                           might get reverted if not fixed)
 smbios: memory device size is now configurable per Machine
 cpu: architecture agnostic code to support vCPU Hotplug
 
 Fixes, cleanups all over the place.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging

virtio,pci,pc: features,fixes

pci: Initial support for SPDM Responders
cxl: Add support for scan media, feature commands, device patrol scrub
    control, DDR5 ECS control, firmware updates
virtio: in-order support
virtio-net: support for SR-IOV emulation (note: known issues on s390,
                                          might get reverted if not fixed)
smbios: memory device size is now configurable per Machine
cpu: architecture agnostic code to support vCPU Hotplug

Fixes, cleanups all over the place.

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

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* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (61 commits)
  hw/nvme: Add SPDM over DOE support
  backends: Initial support for SPDM socket support
  hw/pci: Add all Data Object Types defined in PCIe r6.0
  tests/acpi: Add expected ACPI AML files for RISC-V
  tests/qtest/bios-tables-test.c: Enable basic testing for RISC-V
  tests/acpi: Add empty ACPI data files for RISC-V
  tests/qtest/bios-tables-test.c: Remove the fall back path
  tests/acpi: update expected DSDT blob for aarch64 and microvm
  acpi/gpex: Create PCI link devices outside PCI root bridge
  tests/acpi: Allow DSDT acpi table changes for aarch64
  hw/riscv/virt-acpi-build.c: Update the HID of RISC-V UART
  hw/riscv/virt-acpi-build.c: Add namespace devices for PLIC and APLIC
  virtio-iommu: Add trace point on virtio_iommu_detach_endpoint_from_domain
  hw/vfio/common: Add vfio_listener_region_del_iommu trace event
  virtio-iommu: Remove the end point on detach
  virtio-iommu: Free [host_]resv_ranges on unset_iommu_devices
  virtio-iommu: Remove probe_done
  Revert "virtio-iommu: Clear IOMMUDevice when VFIO device is unplugged"
  gdbstub: Add helper function to unregister GDB register space
  physmem: Add helper function to destroy CPU AddressSpace
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-07-24 09:32:04 +10:00
Anthony Harivel
84369d7621 tools: build qemu-vmsr-helper
Introduce a privileged helper to access RAPL MSR.

The privileged helper tool, qemu-vmsr-helper, is designed to provide
virtual machines with the ability to read specific RAPL (Running Average
Power Limit) MSRs without requiring CAP_SYS_RAWIO privileges or relying
on external, out-of-tree patches.

The helper tool leverages Unix permissions and SO_PEERCRED socket
options to enforce access control, ensuring that only processes
explicitly requesting read access via readmsr() from a valid Thread ID
can access these MSRs.

The list of RAPL MSRs that are allowed to be read by the helper tool is
defined in rapl-msr-index.h. This list corresponds to the RAPL MSRs that
will be supported in the next commit titled "Add support for RAPL MSRs
in KVM/QEMU."

The tool is intentionally designed to run on the Linux x86 platform.
This initial implementation is tailored for Intel CPUs but can be
extended to support AMD CPUs in the future.

Signed-off-by: Anthony Harivel <aharivel@redhat.com>
Link: https://lore.kernel.org/r/20240522153453.1230389-3-aharivel@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-07-22 13:50:21 +02:00
Frédéric Pétrot
8d073d48b7 plugins/execlog.c: correct dump of registers values
Register values are dumped as 'sz' chunks of two nibbles in the execlog
plugin, sz was 1 too big.

Signed-off-by: Frédéric Pétrot <frederic.petrot@univ-grenoble-alpes.fr>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20240620083805.73603-1-frederic.petrot@univ-grenoble-alpes.fr>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240718094523.1198645-8-alex.bennee@linaro.org>
2024-07-22 09:38:01 +01:00
Simon Hamelin
58fc249d9e plugins/stoptrigger: TCG plugin to stop execution under conditions
This new plugin allows to stop emulation using conditions on the
emulation state. By setting this plugin arguments, it is possible
to set an instruction count limit and/or trigger address(es) to stop at.
The code returned at emulation exit can be customized.

This plugin demonstrates how someone could stop QEMU execution.
It could be used for research purposes to launch some code and
deterministically stop it and understand where its execution flow went.

Co-authored-by: Alexandre Iooss <erdnaxe@crans.org>
Signed-off-by: Simon Hamelin <simon.hamelin@grenoble-inp.org>
Signed-off-by: Alexandre Iooss <erdnaxe@crans.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20240715081521.19122-2-simon.hamelin@grenoble-inp.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240718094523.1198645-5-alex.bennee@linaro.org>
2024-07-22 09:37:56 +01:00
Stefano Garzarella
99d7c1b99a contrib/vhost-user-blk: fix overflowing expression
Coverity reported:

  >>>     CID 1549454:  Integer handling issues  (OVERFLOW_BEFORE_WIDEN)
  >>>     Potentially overflowing expression
          "le32_to_cpu(desc->num_sectors) << 9" with type "uint32_t"
          (32 bits, unsigned) is evaluated using 32-bit arithmetic, and
          then used in a context that expects an expression of type
          "uint64_t" (64 bits, unsigned).
  199                               le32_to_cpu(desc->num_sectors) << 9 };

Coverity noticed this issue after commit ab04420c3 ("contrib/vhost-user-*:
use QEMU bswap helper functions"), but it was pre-existing and introduced
from the beginning by commit caa1ee4313 ("vhost-user-blk: add
discard/write zeroes features support").

Explicitly cast the 32-bit value before the shift to fix this issue.

Fixes: Coverity CID 1549454
Fixes: 5ab04420c3 ("contrib/vhost-user-*: use QEMU bswap helper functions")
Fixes: caa1ee4313 ("vhost-user-blk: add discard/write zeroes features support")
Cc: changpeng.liu@intel.com
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20240712153857.207440-1-sgarzare@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-21 14:45:56 -04:00
Alex Bennée
3b8550c955 plugins/lockstep: clean-up output
We were repeating information which wasn't super clear. As we already
will have dumped the last failing PC just note the divergence and dump
the previous instruction log.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240705084047.857176-27-alex.bennee@linaro.org>
2024-07-05 12:34:48 +01:00
Alex Bennée
13167b5fe9 plugins/lockstep: mention the one-insn-per-tb option
This really helps with lockstep although its super slow on big jobs.

Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240705084047.857176-26-alex.bennee@linaro.org>
2024-07-05 12:34:48 +01:00
Alex Bennée
5e77f22ac9 plugins/lockstep: make mixed-mode safe
The ExecState is shared across the socket and if we want to compare
say 64 bit and 32 bit binaries we need the two to use the same sizes
for things.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240705084047.857176-25-alex.bennee@linaro.org>
2024-07-05 12:34:41 +01:00
Alex Bennée
bb3dd92d32 plugins/lockstep: preserve sock_path
We can't assign sock_path directly from the autofree'd GStrv, take a
copy.

Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240705084047.857176-24-alex.bennee@linaro.org>
2024-07-05 12:34:41 +01:00
Stefano Garzarella
5ab04420c3 contrib/vhost-user-*: use QEMU bswap helper functions
Let's replace the calls to le*toh() and htole*() with qemu/bswap.h
helpers to make the code more portable.

Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20240618100447.145697-1-sgarzare@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-02 09:27:56 -04:00
Stefano Garzarella
03582094da contrib/vhost-user-blk: fix bind() using the right size of the address
On macOS passing `-s /tmp/vhost.socket` parameter to the vhost-user-blk
application, the bind was done on `/tmp/vhost.socke` pathname,
missing the last character.

This sounds like one of the portability problems described in the
unix(7) manpage:

   Pathname sockets
       When  binding  a socket to a pathname, a few rules should
       be observed for maximum portability and ease of coding:

       •  The pathname in sun_path should be null-terminated.

       •  The length of the pathname, including the  terminating
          null byte, should not exceed the size of sun_path.

       •  The  addrlen  argument  that  describes  the enclosing
          sockaddr_un structure should have a value of at least:

              offsetof(struct sockaddr_un, sun_path) +
              strlen(addr.sun_path)+1

          or,  more  simply,  addrlen  can   be   specified   as
          sizeof(struct sockaddr_un).

So let's follow the last advice and simplify the code as well.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20240618100440.145664-1-sgarzare@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-02 09:27:56 -04:00
Pierrick Bouvier
72db6d54a4 contrib/plugins: add Instructions Per Second (IPS) example for cost modeling
This plugin uses the new time control interface to make decisions
about the state of time during the emulation. The algorithm is
currently very simple. The user specifies an ips rate which applies
per core. If the core runs ahead of its allocated execution time the
plugin sleeps for a bit to let real time catch up. Either way time is
updated for the emulation as a function of total executed instructions
with some adjustments for cores that idle.

Examples
--------

Slow down execution of /bin/true:
$ num_insn=$(./build/qemu-x86_64 -plugin ./build/tests/plugin/libinsn.so -d plugin /bin/true |& grep total | sed -e 's/.*: //')
$ time ./build/qemu-x86_64 -plugin ./build/contrib/plugins/libips.so,ips=$(($num_insn/4)) /bin/true
real 4.000s

Boot a Linux kernel simulating a 250MHz cpu:
$ /build/qemu-system-x86_64 -kernel /boot/vmlinuz-6.1.0-21-amd64 -append "console=ttyS0" -plugin ./build/contrib/plugins/libips.so,ips=$((250*1000*1000)) -smp 1 -m 512
check time until kernel panic on serial0

Tested in system mode by booting a full debian system, and using:
$ sysbench cpu run
Performance decrease linearly with the given number of ips.

Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20240530220610.1245424-7-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240620152220.2192768-11-alex.bennee@linaro.org>
2024-06-24 10:15:10 +01:00
Richard Henderson
4abc892362 plugins: Copy memory in qemu_plugin_insn_data
Instead of returning a host pointer, copy the data into
storage provided by the caller.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-05-15 08:55:18 +02:00
Philippe Mathieu-Daudé
1dfd42c426 hw/rdma: Remove deprecated pvrdma device and rdmacm-mux helper
The whole RDMA subsystem was deprecated in commit e9a54265f5
("hw/rdma: Deprecate the pvrdma device and the rdma subsystem")
released in v8.2.

Remove:
 - PVRDMA device
 - generated vmw_pvrdma/ directory from linux-headers
 - rdmacm-mux tool from contrib/

Cc: Yuval Shaia <yuval.shaia.ml@gmail.com>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20240328130255.52257-2-philmd@linaro.org>
2024-04-24 16:03:38 +02:00
Yao Xingtao
d5866a7a4e contrib/plugins/execlog: Fix compiler warning
1. The g_pattern_match_string() is deprecated when glib2 version >= 2.70.
   Use g_pattern_spec_match_string() instead to avoid this problem.

2. The type of second parameter in g_ptr_array_add() is
   'gpointer' {aka 'void *'}, but the type of reg->name is 'const char*'.
   Cast the type of reg->name to 'gpointer' to avoid this problem.

compiler warning message:

  contrib/plugins/execlog.c:330:17: warning: ‘g_pattern_match_string’
  is deprecated: Use 'g_pattern_spec_match_string' instead [-Wdeprecated-declarations]
    330 |                 if (g_pattern_match_string(pat, rd->name) ||
        |                 ^~
  In file included from /usr/include/glib-2.0/glib.h:67,
                   from contrib/plugins/execlog.c:9:
  /usr/include/glib-2.0/glib/gpattern.h:57:15: note: declared here
     57 | gboolean      g_pattern_match_string   (GPatternSpec *pspec,
        |               ^~~~~~~~~~~~~~~~~~~~~~
  contrib/plugins/execlog.c:331:21: warning: ‘g_pattern_match_string’
  is deprecated: Use 'g_pattern_spec_match_string' instead [-Wdeprecated-declarations]
    331 |                     g_pattern_match_string(pat, rd_lower)) {
        |                     ^~~~~~~~~~~~~~~~~~~~~~
  /usr/include/glib-2.0/glib/gpattern.h:57:15: note: declared here
     57 | gboolean      g_pattern_match_string   (GPatternSpec *pspec,
        |               ^~~~~~~~~~~~~~~~~~~~~~
  contrib/plugins/execlog.c:339:63: warning: passing argument 2 of
  ‘g_ptr_array_add’ discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
    339 |                             g_ptr_array_add(all_reg_names, reg->name);
        |                                                            ~~~^~~~~~
  In file included from /usr/include/glib-2.0/glib.h:33:
  /usr/include/glib-2.0/glib/garray.h:198:62: note: expected
  ‘gpointer’ {aka ‘void *’} but argument is of type ‘const char *’
    198 |                                            gpointer          data);
        |                                            ~~~~~~~~~~~~~~~~~~^~~~

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2210
Signed-off-by: Yao Xingtao <yaoxt.fnst@fujitsu.com>
Message-ID: <20240326015257.21516-1-yaoxt.fnst@fujitsu.com>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-03-26 14:32:51 +01:00
Paolo Bonzini
732810235f tests/plugins: fix use-after-free bug
rec->count.score is inside rec, which is freed before rec->count.score is.
Reorder the instructions

Reported by Coverity as CID 1539967.

Cc: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-03-20 09:47:16 +01:00
Akihiko Odaki
98d16e5f72 contrib/elf2dmp: Ensure phdrs fit in file
Callers of elf64_getphdr() and elf_getphdrnum() assume phdrs are
accessible.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2202
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20240307-elf2dmp-v4-19-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:27 +00:00
Akihiko Odaki
9de37c2883 contrib/elf2dmp: Clamp QEMU note to file size
This fixes crashes with truncated dumps.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-id: 20240307-elf2dmp-v4-18-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:27 +00:00
Akihiko Odaki
0c94e32dff contrib/elf2dmp: Use GPtrArray
This removes the need to enumarate QEMUCPUState twice and saves code.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-id: 20240307-elf2dmp-v4-17-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:27 +00:00
Akihiko Odaki
f024f5031e contrib/elf2dmp: Use rol64() to decode
rol64() is roubust against too large shift values and fixes UBSan
warnings.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240307-elf2dmp-v4-14-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:06 +00:00
Akihiko Odaki
2aa501af35 contrib/elf2dmp: Use lduw_le_p() to read PDB
The relevant value may be unaligned and is little-endian.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240307-elf2dmp-v4-13-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:06 +00:00
Akihiko Odaki
667909478b contrib/elf2dmp: Ensure segment fits in file
This makes elf2dmp more robust against corrupted inputs.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-id: 20240307-elf2dmp-v4-12-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:06 +00:00
Akihiko Odaki
2aa205f7c6 contrib/elf2dmp: Always destroy PA space
Destroy PA space even if paging base couldn't be found, fixing memory
leak.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-id: 20240307-elf2dmp-v4-11-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:06 +00:00
Akihiko Odaki
a6a62ef575 contrib/elf2dmp: Always check for PA resolution failure
Not checking PA resolution failure can result in NULL deference.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-id: 20240307-elf2dmp-v4-10-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:06 +00:00
Akihiko Odaki
fbc3d7d2f1 contrib/elf2dmp: Fix error reporting style in main.c
include/qapi/error.h says:
> We recommend
> * bool-valued functions return true on success / false on failure,
> ...

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20240307-elf2dmp-v4-9-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:06 +00:00
Akihiko Odaki
49760ccf86 contrib/elf2dmp: Fix error reporting style in qemu_elf.c
include/qapi/error.h says:
> We recommend
> * bool-valued functions return true on success / false on failure,
> ...

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20240307-elf2dmp-v4-8-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:06 +00:00
Akihiko Odaki
b1250455c7 contrib/elf2dmp: Fix error reporting style in pdb.c
include/qapi/error.h says:
> We recommend
> * bool-valued functions return true on success / false on failure,
> ...

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20240307-elf2dmp-v4-7-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:06 +00:00
Akihiko Odaki
1b806c36bc contrib/elf2dmp: Fix error reporting style in download.c
include/qapi/error.h says:
> We recommend
> * bool-valued functions return true on success / false on failure,
> ...

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20240307-elf2dmp-v4-6-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:06 +00:00
Akihiko Odaki
a15f974949 contrib/elf2dmp: Fix error reporting style in addrspace.c
include/qapi/error.h says:
> We recommend
> * bool-valued functions return true on success / false on failure,
> ...

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240307-elf2dmp-v4-5-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:06 +00:00
Akihiko Odaki
262a0ff880 contrib/elf2dmp: Change pa_space_create() signature
pa_space_create() used to return an integer to propagate error, but
it never fails so let it return void.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240307-elf2dmp-v4-4-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:06 +00:00
Akihiko Odaki
87157ef350 contrib/elf2dmp: Continue even contexts are lacking
Let fill_context() continue even if it fails to fill contexts of some
CPUs. A dump may still contain valuable information even if it lacks
contexts of some CPUs due to dump corruption or a failure before
starting CPUs.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-id: 20240307-elf2dmp-v4-3-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:06 +00:00
Akihiko Odaki
a4e58de146 contrib/elf2dmp: Assume error by default
A common construct in contrib/elf2dmp is to set "err" flag and goto
in error paths. In such a construct, there is only one successful path
while there are several error paths, so it will be more simpler to
initialize "err" flag set, and clear it in the successful path.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-id: 20240307-elf2dmp-v4-2-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:06 +00:00
Akihiko Odaki
b48139d0d9 contrib/elf2dmp: Remove unnecessary err flags
They are always evaluated to 1.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-id: 20240307-elf2dmp-v4-1-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-11 17:06:06 +00:00
Pierrick Bouvier
c125a8ab04 contrib/plugins/howvec: migrate to new per_vcpu API
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20240304130036.124418-11-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240305121005.3528075-24-alex.bennee@linaro.org>
2024-03-06 12:35:44 +00:00
Pierrick Bouvier
2d0d551442 contrib/plugins/hotblocks: migrate to new per_vcpu API
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20240304130036.124418-10-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240305121005.3528075-23-alex.bennee@linaro.org>
2024-03-06 12:35:38 +00:00
Alex Bennée
af6e4e0a22 contrib/plugins: extend execlog to track register changes
With the new plugin register API we can now track changes to register
values. Currently the implementation is fairly dumb which will slow
down if a large number of register values are being tracked. This
could be improved by only instrumenting instructions which mention
registers we are interested in tracking.

Example usage:

  ./qemu-aarch64 -D plugin.log -d plugin \
     -cpu max,sve256=on \
     -plugin contrib/plugins/libexeclog.so,reg=sp,reg=z\* \
     ./tests/tcg/aarch64-linux-user/sha512-sve

will display in the execlog any changes to the stack pointer (sp) and
the SVE Z registers.

As testing registers every instruction will be quite a heavy operation
there is an additional flag which attempts to optimise the register
tracking by only instrumenting instructions which are likely to change
its value. This relies on the QEMU disassembler showing up the register
names in disassembly so is an explicit opt-in.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Cc: Akihiko Odaki <akihiko.odaki@daynix.com>
Based-On:  <20231025093128.33116-19-akihiko.odaki@daynix.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240227144335.1196131-27-alex.bennee@linaro.org>
2024-02-28 09:11:42 +00:00
Alex Bennée
9e096a76c7 contrib/plugins: fix imatch
We can't directly save the ephemeral imatch from argv as that memory
will get recycled.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240227144335.1196131-26-alex.bennee@linaro.org>
2024-02-28 09:11:42 +00:00
Pierrick Bouvier
926e146eff plugins: remove previous n_vcpus functions from API
This information is already accessible using qemu_info_t during plugin
install.

We will introduce another function (qemu_plugin_num_vcpus) which
represent how many cpus were enabled, by tracking new cpu indexes.

It's a breaking change, so we bump API version.

Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240213094009.150349-2-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240227144335.1196131-16-alex.bennee@linaro.org>
2024-02-28 09:11:34 +00:00
Dmitry Osipenko
574b64aa67 virtio-gpu: Correct virgl_renderer_resource_get_info() error check
virgl_renderer_resource_get_info() returns errno and not -1 on error.
Correct the return-value check.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Message-Id: <20240129073921.446869-1-dmitry.osipenko@collabora.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:33 -05:00
Paolo Bonzini
d0cda6f461 configure, meson: rename targetos to host_os
This variable is about the host OS, not the target.  It is used a lot
more since the Meson conversion, but the original sin dates back to 2003.
Time to fix it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-12-31 09:11:29 +01:00
Greg Manning
4789f9d3a1 plugins: fix win plugin tests on cross compile
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1972

Cross compile gcc is more picky about argument order than msys. Changed
the meson command to take the (now renamed) libqemu_plugin_api.a as a
lib, rather than an object. This puts it in the right place on both
native and cross compile gcc commands

Reenable plugins on crossbuilds

Signed-off-by: Greg Manning <gmanning@rapitasystems.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20231109124326.21106-2-gmanning@rapitasystems.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231120150833.2552739-5-alex.bennee@linaro.org>
2023-11-23 14:10:04 +00:00
Michael Tokarev
1a9c9a6f8a contrib/vhost-user-gpu/virgl.c: spelling fix: mesage
Fixes: e3c82fe04f "contrib/vhost-user-gpu: add support for sending dmabuf modifiers"
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2023-11-15 11:59:54 +03:00
Alex Bennée
8df113d979 contrib/gitdm: add Daynix to domain-map
Daynix describes itself as a cloud technology company so I assume
employee contributions should count as such.

Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231106185112.2755262-21-alex.bennee@linaro.org>
2023-11-08 15:15:23 +00:00
Alex Bennée
e14e0f293d contrib/gitdm: map HiSilicon to Huawei
HiSilicon is a wholly owned subsidiary of Huawei so map the domain to
the same company to avoid splitting the contributions.

Reviewed-by: Yicong Yang <yangyicong@hisilicon.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231106185112.2755262-20-alex.bennee@linaro.org>
2023-11-08 15:15:23 +00:00
luzhipeng
567fa02988 contrib/gitdm: add domain-map for Cestc
Signed-off-by: luzhipeng <luzhipeng@cestc.cn>
Message-Id: <20230628072236.1925-1-luzhipeng@cestc.cn>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231106185112.2755262-19-alex.bennee@linaro.org>
2023-11-08 15:15:23 +00:00
Alex Bennée
56953a596c contrib/gitdm: Add Rivos Inc to the domain map
Whatever they are up to a number of people for the company are
contributing to QEMU so lets group them together.

Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231106185112.2755262-18-alex.bennee@linaro.org>
2023-11-08 15:15:23 +00:00