target/i386: Reset TSCs of parked vCPUs too on VM reset

Since commit 5286c3662294 ("target/i386: properly reset TSC on reset")
QEMU writes the special value of "1" to each online vCPU TSC on VM rese

target/i386: Reset TSCs of parked vCPUs too on VM reset

Since commit 5286c3662294 ("target/i386: properly reset TSC on reset")
QEMU writes the special value of "1" to each online vCPU TSC on VM reset
to reset it.

However parked vCPUs don't get that handling and due to that their TSCs
get desynchronized when the VM gets reset.
This in turn causes KVM to turn off PVCLOCK_TSC_STABLE_BIT in its exported
PV clock.
Note that KVM has no understanding of vCPU being currently parked.

Without PVCLOCK_TSC_STABLE_BIT the sched clock is marked unstable in
the guest's kvm_sched_clock_init().
This causes a performance regressions to show in some tests.

Fix this issue by writing the special value of "1" also to TSCs of parked
vCPUs on VM reset.

Reproducing the issue:
1) Boot a VM with "-smp 2,maxcpus=3" or similar

2) device_add host-x86_64-cpu,id=vcpu,node-id=0,socket-id=0,core-id=2,thread-id=0

3) Wait a few seconds

4) device_del vcpu

5) Inside the VM run:
# echo "t" >/proc/sysrq-trigger; dmesg | grep sched_clock_stable
Observe the sched_clock_stable() value is 1.

6) Reboot the VM

7) Once the VM boots once again run inside it:
# echo "t" >/proc/sysrq-trigger; dmesg | grep sched_clock_stable
Observe the sched_clock_stable() value is now 0.

Fixes: 5286c3662294 ("target/i386: properly reset TSC on reset")
Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Link: https://lore.kernel.org/r/5a605a88e9a231386dc803c60f5fed9b48108139.1734014926.git.maciej.szmigiero@oracle.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 3f2a05b31ee9ce2ddb6c75a9bc3f5e7f7af9a76f)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

show more ...

Merge tag 'for-upstream-i386' of https://gitlab.com/bonzini/qemu into staging

* target/i386: new feature bits for AMD processors
* target/i386/tcg: improvements around flag handling
* target/i386: a

Merge tag 'for-upstream-i386' of https://gitlab.com/bonzini/qemu into staging

* target/i386: new feature bits for AMD processors
* target/i386/tcg: improvements around flag handling
* target/i386: add AVX10 support
* target/i386: add GraniteRapids-v2 model
* dockerfiles: add libcbor
* New nitro-enclave machine type
* qom: cleanups to object_new
* configure: detect 64-bit MIPS for rust
* configure: deprecate 32-bit MIPS

# -----BEGIN PGP SIGNATURE-----
#
# iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmcjvkQUHHBib256aW5p
# QHJlZGhhdC5jb20ACgkQv/vSX3jHroPIKgf/etNpO2T+eLFtWN/Qd5eopBXqNd9k
# KmeK9EgW9lqx2IPGNen33O+uKpb/TsMmubSsSF+YxTp7pmkc8+71f3rBMaIAD02r
# /paHSMVw0+f12DAFQz1jdvGihR7Mew0wcF/UdEt737y6vEmPxLTyYG3Gfa4NSZwT
# /V5jTOIcfUN/UEjNgIp6NTuOEESKmlqt22pfMapgkwMlAJYeeJU2X9eGYE86wJbq
# ZSXNgK3jL9wGT2XKa3e+OKzHfFpSkrB0JbQbdico9pefnBokN/hTeeUJ81wBAc7u
# i00W1CEQVJ5lhBc121d4AWMp83ME6HijJUOTMmJbFIONPsITFPHK1CAkng==
# =D4nR
# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 31 Oct 2024 17:28:36 GMT
# 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

* tag 'for-upstream-i386' of https://gitlab.com/bonzini/qemu: (49 commits)
target/i386: Introduce GraniteRapids-v2 model
target/i386: Add AVX512 state when AVX10 is supported
target/i386: Add feature dependencies for AVX10
target/i386: add CPUID.24 features for AVX10
target/i386: add AVX10 feature and AVX10 version property
target/i386: return bool from x86_cpu_filter_features
target/i386: do not rely on ExtSaveArea for accelerator-supported XCR0 bits
target/i386: cpu: set correct supported XCR0 features for TCG
target/i386: use + to put flags together
target/i386: use higher-precision arithmetic to compute CF
target/i386: use compiler builtin to compute PF
target/i386: make flag variables unsigned
target/i386: add a note about gen_jcc1
target/i386: add a few more trivial CCPrepare cases
target/i386: optimize TEST+Jxx sequences
target/i386: optimize computation of ZF from CC_OP_DYNAMIC
target/i386: Wrap cc_op_live with a validity check
target/i386: Introduce cc_op_size
target/i386: Rearrange CCOp
target/i386: remove CC_OP_CLR
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

target/i386: add AVX10 feature and AVX10 version property

When AVX10 enable bit is set, the 0x24 leaf will be present as "AVX10
Converged Vector ISA leaf" containing fields for the version number an

target/i386: add AVX10 feature and AVX10 version property

When AVX10 enable bit is set, the 0x24 leaf will be present as "AVX10
Converged Vector ISA leaf" containing fields for the version number and
the supported vector bit lengths.

Introduce avx10-version property so that avx10 version can be controlled
by user and cpu model. Per spec, avx10 version can never be 0, the default
value of avx10-version is set to 0 to determine whether it is specified by
user. The default can come from the device model or, for the max model,
from KVM's reported value.

Signed-off-by: Tao Su <tao1.su@linux.intel.com>
Link: https://lore.kernel.org/r/20241028024512.156724-3-tao1.su@linux.intel.com
Link: https://lore.kernel.org/r/20241028024512.156724-4-tao1.su@linux.intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Xuelian Guo <xuelian.guo@intel.com>
Link: https://lore.kernel.org/r/20241031085233.425388-5-tao1.su@linux.intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* tcg/s390x: Fix for TSTEQ/TSTNE
* target/i386: Fixes for IN and OUT with REX prefix
* target/i386: New CPUID features and lo

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* tcg/s390x: Fix for TSTEQ/TSTNE
* target/i386: Fixes for IN and OUT with REX prefix
* target/i386: New CPUID features and logic fixes
* target/i386: Add support save/load HWCR MSR
* target/i386: Move more instructions to new decoder; separate decoding
and IR generation
* target/i386/tcg: Use DPL-level accesses for interrupts and call gates
* accel/kvm: perform capability checks on VM file descriptor when necessary
* accel/kvm: dynamically sized kvm memslots array
* target/i386: fixes for Hyper-V
* docs/system: Add recommendations to Hyper-V enlightenments doc

# -----BEGIN PGP SIGNATURE-----
#
# iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmcRTIoUHHBib256aW5p
# QHJlZGhhdC5jb20ACgkQv/vSX3jHroMCewf8DnZbz7/0beql2YycrdPJZ3xnmfWW
# JenWKIThKHGWRTW2ODsac21n0TNXE0vsOYjw/Z/dNLO+72sLcqvmEB18+dpHAD2J
# ltb8OvuROc3nn64OEi08qIj7JYLmJ/osroI+6NnZrCOHo8nCirXoCHB7ZPqAE7/n
# yDnownWaduXmXt3+Vs1mpqlBklcClxaURDDEQ8CGsxjC3jW03cno6opJPZpJqk0t
# 6aX92vX+3lNhIlije3QESsDX0cP1CFnQmQlNNg/xzk+ZQO+vSRrPV+A/N9xf8m1b
# HiaCrlBWYef/sLgOHziOSrJV5/N8W0GDEVYDmpEswHE81BZxrOTZLxqzWw==
# =qwfc
# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 17 Oct 2024 18:42:34 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

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (26 commits)
target/i386: Use only 16 and 32-bit operands for IN/OUT
accel/kvm: check for KVM_CAP_MEMORY_ATTRIBUTES on vm
accel/kvm: check for KVM_CAP_MULTI_ADDRESS_SPACE on vm
accel/kvm: check for KVM_CAP_READONLY_MEM on VM
target/i386/tcg: Use DPL-level accesses for interrupts and call gates
KVM: Rename KVMState->nr_slots to nr_slots_max
KVM: Rename KVMMemoryListener.nr_used_slots to nr_slots_used
KVM: Define KVM_MEMSLOTS_NUM_MAX_DEFAULT
KVM: Dynamic sized kvm memslots array
target/i386: assert that cc_op* and pc_save are preserved
target/i386: list instructions still in translate.c
target/i386: do not check PREFIX_LOCK in old-style decoder
target/i386: convert CMPXCHG8B/CMPXCHG16B to new decoder
target/i386: decode address before going back to translate.c
target/i386: convert bit test instructions to new decoder
tcg/s390x: fix constraint for 32-bit TSTEQ/TSTNE
docs/system: Add recommendations to Hyper-V enlightenments doc
target/i386: Make sure SynIC state is really updated before KVM_RUN
target/i386: Exclude 'hv-syndbg' from 'hv-passthrough'
target/i386: Fix conditional CONFIG_SYNDBG enablement
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

target/i386: Exclude 'hv-syndbg' from 'hv-passthrough'

Windows with Hyper-V role enabled doesn't boot with 'hv-passthrough' when
no debugger is configured, this significantly limits the usefulness o

target/i386: Exclude 'hv-syndbg' from 'hv-passthrough'

Windows with Hyper-V role enabled doesn't boot with 'hv-passthrough' when
no debugger is configured, this significantly limits the usefulness of the
feature as there's no support for subtracting Hyper-V features from CPU
flags at this moment (e.g. "-cpu host,hv-passthrough,-hv-syndbg" does not
work). While this is also theoretically fixable, 'hv-syndbg' is likely
very special and unneeded in the default set. Genuine Hyper-V doesn't seem
to enable it either.

Introduce 'skip_passthrough' flag to 'kvm_hyperv_properties' and use it as
one-off to skip 'hv-syndbg' when enabling features in 'hv-passthrough'
mode. Note, "-cpu host,hv-passthrough,hv-syndbg" can still be used if
needed.

As both 'hv-passthrough' and 'hv-syndbg' are debug features, the change
should not have any effect on production environments.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20240917160051.2637594-3-vkuznets@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

target/i386: Fix conditional CONFIG_SYNDBG enablement

Putting HYPERV_FEAT_SYNDBG entry under "#ifdef CONFIG_SYNDBG" in
'kvm_hyperv_properties' array is wrong: as HYPERV_FEAT_SYNDBG is not
the highes

target/i386: Fix conditional CONFIG_SYNDBG enablement

Putting HYPERV_FEAT_SYNDBG entry under "#ifdef CONFIG_SYNDBG" in
'kvm_hyperv_properties' array is wrong: as HYPERV_FEAT_SYNDBG is not
the highest feature number, the result is an empty (zeroed) entry in
the array (and not a skipped entry!). hyperv_feature_supported() is
designed to check that all CPUID bits are set but for a zeroed
feature in 'kvm_hyperv_properties' it returns 'true' so QEMU considers
HYPERV_FEAT_SYNDBG as always supported, regardless of whether KVM host
actually supports it.

To fix the issue, leave HYPERV_FEAT_SYNDBG's definition in
'kvm_hyperv_properties' array, there's nothing wrong in having it defined
even when 'CONFIG_SYNDBG' is not set. Instead, put "hv-syndbg" CPU property
under '#ifdef CONFIG_SYNDBG' to alter the existing behavior when the flag
is silently skipped in !CONFIG_SYNDBG builds.

Leave an 'assert' sentinel in hyperv_feature_supported() making sure there
are no 'holes' or improperly defined features in 'kvm_hyperv_properties'.

Fixes: d8701185f40c ("hw: hyperv: Initial commit for Synthetic Debugging device")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20240917160051.2637594-2-vkuznets@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

target/i386: Add support save/load HWCR MSR

KVM commit 191c8137a939 ("x86/kvm: Implement HWCR support")
introduced support for emulating HWCR MSR.

Add support for QEMU to save/load this MSR for mig

target/i386: Add support save/load HWCR MSR

KVM commit 191c8137a939 ("x86/kvm: Implement HWCR support")
introduced support for emulating HWCR MSR.

Add support for QEMU to save/load this MSR for migration purposes.

Signed-off-by: Gao Shiyuan <gaoshiyuan@baidu.com>
Signed-off-by: Wang Liang <wangliang44@baidu.com>
Link: https://lore.kernel.org/r/20241009095109.66843-1-gaoshiyuan@baidu.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

target/i386: Construct CPUID 2 as stateful iff times > 1

When times == 1, the CPUID leaf 2 is not stateful.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Link: https://lore.kernel.org/r/20240814

target/i386: Construct CPUID 2 as stateful iff times > 1

When times == 1, the CPUID leaf 2 is not stateful.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Link: https://lore.kernel.org/r/20240814075431.339209-6-xiaoyao.li@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

target/i386: Don't construct a all-zero entry for CPUID[0xD 0x3f]

Currently, QEMU always constructs a all-zero CPUID entry for
CPUID[0xD 0x3f].

It's meaningless to construct such a leaf as the end

target/i386: Don't construct a all-zero entry for CPUID[0xD 0x3f]

Currently, QEMU always constructs a all-zero CPUID entry for
CPUID[0xD 0x3f].

It's meaningless to construct such a leaf as the end of leaf 0xD. Rework
the logic of how subleaves of 0xD are constructed to get rid of such
all-zero value of subleaf 0x3f.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Link: https://lore.kernel.org/r/20240814075431.339209-2-xiaoyao.li@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* pc: Add a description for the i8042 property
* kvm: support for nested FRED
* tests/unit: fix warning when compiling test-n

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* pc: Add a description for the i8042 property
* kvm: support for nested FRED
* tests/unit: fix warning when compiling test-nested-aio-poll with LTO
* kvm: refactoring of VM creation
* target/i386: expose IBPB-BRTYPE and SBPB CPUID bits to the guest
* hw/char: clean up serial
* remove virtfs-proxy-helper
* target/i386/kvm: Report which action failed in kvm_arch_put/get_registers
* qom: improvements to object_resolve_path*()

# -----BEGIN PGP SIGNATURE-----
#
# iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmb++MsUHHBib256aW5p
# QHJlZGhhdC5jb20ACgkQv/vSX3jHroPVnwf/cdvfxvDm22tEdlh8vHlV17HtVdcC
# Hw334M/3PDvbTmGzPBg26lzo4nFS6SLrZ8ETCeqvuJrtKzqVk9bI8ssZW5KA4ijM
# nkxguRPHO8E6U33ZSucc+Hn56+bAx4I2X80dLKXJ87OsbMffIeJ6aHGSEI1+fKVh
# pK7q53+Y3lQWuRBGhDIyKNuzqU4g+irpQwXOhux63bV3ADadmsqzExP6Gmtl8OKM
# DylPu1oK7EPZumlSiJa7Gy1xBqL4Rc4wGPNYx2RVRjp+i7W2/Y1uehm3wSBw+SXC
# a6b7SvLoYfWYS14/qCF4cBL3sJH/0f/4g8ZAhDDxi2i5kBr0/5oioDyE/A==
# =/zo4
# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 03 Oct 2024 21:04:27 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

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (23 commits)
qom: update object_resolve_path*() documentation
qom: set *ambiguous on all paths
qom: rename object_resolve_path_type() "ambiguousp"
target/i386/kvm: Report which action failed in kvm_arch_put/get_registers
kvm: Allow kvm_arch_get/put_registers to accept Error**
accel/kvm: refactor dirty ring setup
minikconf: print error entirely on stderr
9p: remove 'proxy' filesystem backend driver
hw/char: Extract serial-mm
hw/char/serial.h: Extract serial-isa.h
hw: Remove unused inclusion of hw/char/serial.h
target/i386: Expose IBPB-BRTYPE and SBPB CPUID bits to the guest
kvm: refactor core virtual machine creation into its own function
kvm/i386: replace identity_base variable with a constant
kvm/i386: refactor kvm_arch_init and split it into smaller functions
kvm: replace fprintf with error_report()/printf() in kvm_init()
kvm/i386: fix return values of is_host_cpu_intel()
kvm/i386: make kvm_filter_msr() and related definitions private to kvm module
hw/i386/pc: Add a description for the i8042 property
tests/unit: remove block layer code from test-nested-aio-poll
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

# Conflicts:
# hw/arm/Kconfig
# hw/arm/pxa2xx.c

show more ...

target/i386/kvm: Report which action failed in kvm_arch_put/get_registers

To help debug and triage future failure reports (akin to [1,2]) that
may occur during kvm_arch_put/get_registers, the error

target/i386/kvm: Report which action failed in kvm_arch_put/get_registers

To help debug and triage future failure reports (akin to [1,2]) that
may occur during kvm_arch_put/get_registers, the error path of each
action is accompanied by unique error message.

[1] https://issues.redhat.com/browse/RHEL-7558
[2] https://issues.redhat.com/browse/RHEL-21761

Signed-off-by: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20240927104743.218468-3-jusual@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

kvm: Allow kvm_arch_get/put_registers to accept Error**

This is necessary to provide discernible error messages to the caller.

Signed-off-by: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Peter X

kvm: Allow kvm_arch_get/put_registers to accept Error**

This is necessary to provide discernible error messages to the caller.

Signed-off-by: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20240927104743.218468-2-jusual@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

kvm/i386: replace identity_base variable with a constant

identity_base variable is first initialzied to address 0xfffbc000 and then
kvm_vm_set_identity_map_addr() overrides this value to address 0xf

kvm/i386: replace identity_base variable with a constant

identity_base variable is first initialzied to address 0xfffbc000 and then
kvm_vm_set_identity_map_addr() overrides this value to address 0xfeffc000.
The initial address to which the variable was initialized was never used. Clean
everything up, placing 0xfeffc000 in a preprocessor constant.

Reported-by: Ani Sinha <anisinha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

kvm/i386: refactor kvm_arch_init and split it into smaller functions

kvm_arch_init() enables a lot of vm capabilities. Refactor them into separate
smaller functions. Energy MSR related operations al

kvm/i386: refactor kvm_arch_init and split it into smaller functions

kvm_arch_init() enables a lot of vm capabilities. Refactor them into separate
smaller functions. Energy MSR related operations also moved to its own
function. There should be no functional impact.

Signed-off-by: Ani Sinha <anisinha@redhat.com>
Link: https://lore.kernel.org/r/20240903124143.39345-2-anisinha@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

kvm/i386: fix return values of is_host_cpu_intel()

is_host_cpu_intel() should return TRUE if the host cpu in Intel based, otherwise
it should return FALSE. Currently, it returns zero (FALSE) when th

kvm/i386: fix return values of is_host_cpu_intel()

is_host_cpu_intel() should return TRUE if the host cpu in Intel based, otherwise
it should return FALSE. Currently, it returns zero (FALSE) when the host CPU
is INTEL and non-zero otherwise. Fix the function so that it agrees more with
the semantics. Adjust the calling logic accordingly. RAPL needs Intel host cpus.
If the host CPU is not Intel baseed, we should report error.

Signed-off-by: Ani Sinha <anisinha@redhat.com>
Link: https://lore.kernel.org/r/20240903080004.33746-1-anisinha@redhat.com
[While touching the code remove too many spaces from the second part of the
error. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

kvm/i386: make kvm_filter_msr() and related definitions private to kvm module

kvm_filer_msr() is only used from i386 kvm module. Make it static so that its
easy for developers to understand that its

kvm/i386: make kvm_filter_msr() and related definitions private to kvm module

kvm_filer_msr() is only used from i386 kvm module. Make it static so that its
easy for developers to understand that its not used anywhere else.
Same for QEMURDMSRHandler, QEMUWRMSRHandler and KVMMSRHandlers definitions.

CC: philmd@linaro.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Ani Sinha <anisinha@redhat.com>
Link: https://lore.kernel.org/r/20240903140045.41167-1-anisinha@redhat.com
[Make struct unnamed. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

target/i386: Raise the highest index value used for any VMCS encoding

Because the index value of the VMCS field encoding of FRED injected-event
data (one of the newly added VMCS fields for FRED tran

target/i386: Raise the highest index value used for any VMCS encoding

Because the index value of the VMCS field encoding of FRED injected-event
data (one of the newly added VMCS fields for FRED transitions), 0x52, is
larger than any existing index value, raise the highest index value used
for any VMCS encoding to 0x52.

Because the index value of the VMCS field encoding of Secondary VM-exit
controls, 0x44, is larger than any existing index value, raise the highest
index value used for any VMCS encoding to 0x44.

Co-developed-by: Xin Li <xin3.li@intel.com>
Signed-off-by: Xin Li <xin3.li@intel.com>
Signed-off-by: Lei Wang <lei4.wang@intel.com>
Signed-off-by: Xin Li (Intel) <xin@zytor.com>
Link: https://lore.kernel.org/r/20240807081813.735158-4-xin@zytor.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

Merge tag 'pull-request-2024-09-25' of https://gitlab.com/thuth/qemu into staging

* Convert more Avocado tests to the new functional test framework
* Clean up assert() statements, use g_assert_not_r

Merge tag 'pull-request-2024-09-25' of https://gitlab.com/thuth/qemu into staging

* Convert more Avocado tests to the new functional test framework
* Clean up assert() statements, use g_assert_not_reached() when possible
* Improve output of the gitlab CI jobs

# -----BEGIN PGP SIGNATURE-----
#
# iQJFBAABCAAvFiEEJ7iIR+7gJQEY8+q5LtnXdP5wLbUFAmbz7xgRHHRodXRoQHJl
# ZGhhdC5jb20ACgkQLtnXdP5wLbWm6A//eVn+tzyyKCX/xdXlf7XyVpezvRpTFPOS
# HyO0WMkCf2kGmu6qYKx/fDZg86opdQzPLH2gPkuVrGOMZ0Z2630DjH0jNih8lL9Q
# J1oRX5YlU92chlzNmq59WB/j9CKd91ILtOoaPBuZkDob57yGEYVzCPqetVvF7L2+
# +rbnccrNPumGJFt035fxUGiGfgsmp28MHQzDwQdyr38uGjyNlqvqidfC8Vj1qzqP
# B7HvhGB/vkF0eHaanMt2el/ZuLKf+qeCi//F/CiXGMYnuKXyShA/Db6xvMElw1jB
# aQdwphP71IO+cxjJLaNjDHKGFstArsM/E21qlaSTBi+FTmPiwVULpVTiBmWsjhOh
# /klpdgRHf0hL2MciYKyOWgjlTocx3rEKjCTe2U5tpta9fp9CrlgMQotjDZIbohGI
# ULNahrW3Zmg4EmXDApfhYMXsQsSgWas9QSkmxzJzDp0VC7tf2Oq7RxeySrlw9MCx
# OG2qQY+rNcJ3NnpATjfAJpT1kg/IahDOCNHfLEaj1u13XVQIthVADvHwy5WxbwRP
# mwp3V9e9sUoznkM2eV646lzmkMim/WdYBF0YpT7eBs80+GoXZ0thx9IqWmwzX/ox
# rndBczVN+RY6PydJP40yljdvS7ArRT73wHqL6yKHfDpvFc4/p5mxTWwLQ3yJbXbE
# T3I+wtgfBU8=
# =FH7b
# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 25 Sep 2024 12:08:08 BST
# gpg: using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg: issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg: aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2024-09-25' of https://gitlab.com/thuth/qemu: (44 commits)
.gitlab-ci.d: Make separate collapsible log sections for build and test
.gitlab-ci.d: Split build and test in cross build job templates
scripts/checkpatch.pl: emit error when using assert(false)
tests/qtest: remove return after g_assert_not_reached()
qom: remove return after g_assert_not_reached()
qobject: remove return after g_assert_not_reached()
migration: remove return after g_assert_not_reached()
hw/ppc: remove return after g_assert_not_reached()
hw/pci: remove return after g_assert_not_reached()
hw/net: remove return after g_assert_not_reached()
hw/hyperv: remove return after g_assert_not_reached()
include/qemu: remove return after g_assert_not_reached()
tcg/loongarch64: remove break after g_assert_not_reached()
fpu: remove break after g_assert_not_reached()
target/riscv: remove break after g_assert_not_reached()
target/arm: remove break after g_assert_not_reached()
hw/tpm: remove break after g_assert_not_reached()
hw/scsi: remove break after g_assert_not_reached()
hw/net: remove break after g_assert_not_reached()
hw/acpi: remove break after g_assert_not_reached()
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

target/i386/kvm: replace assert(false) with g_assert_not_reached()

This patch is part of a series that moves towards a consistent use of
g_assert_not_reached() rather than an ad hoc mix of different

target/i386/kvm: replace assert(false) with g_assert_not_reached()

This patch is part of a series that moves towards a consistent use of
g_assert_not_reached() rather than an ad hoc mix of different
assertion mechanisms.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240919044641.386068-15-pierrick.bouvier@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>

show more ...

Merge tag 'pull-target-arm-20240913' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
* s390: convert s390 virtio-ccw and CPU to three-phase reset
* reset: remove

Merge tag 'pull-target-arm-20240913' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
* s390: convert s390 virtio-ccw and CPU to three-phase reset
* reset: remove now-unused device_class_set_parent_reset()
* reset: introduce device_class_set_legacy_reset()
* reset: remove unneeded transitional machinery
* kvm: Use 'unsigned long' for request argument in functions wrapping ioctl()
* hvf: arm: Implement and use hvf_get_physical_address_range
so VMs can have larger-than-36-bit IPA spaces when the host
supports this
* target/arm/tcg: refine cache descriptions with a wrapper
* hw/net/can/xlnx-versal-canfd: fix various bugs
* MAINTAINERS: update versal, CAN maintainer entries
* hw/intc/arm_gic: fix spurious level triggered interrupts

# -----BEGIN PGP SIGNATURE-----
#
# iQJNBAABCAA3FiEE4aXFk81BneKOgxXPPCUl7RQ2DN4FAmbkVokZHHBldGVyLm1h
# eWRlbGxAbGluYXJvLm9yZwAKCRA8JSXtFDYM3pR5D/0ZJzJi7C0HIa4KYuBkcpZQ
# M3iUa1uiZoCniXlWuKFt2rUBrmhbW30YHw5gQjnxoUO4VVqREkFi3e5nzUKRQmvP
# FRm8dnuC36qwQJFhm+rQqUb8/AyqrVFnIaHhn7dBKLwRFm9+kbZ0v9x1Eq1DZk3S
# mijBQRiOjrj+FRkmyNJLhylGpm+p9VRdnBjmUtN2Yw+2fPkHmUURRSUvhwCK4BB5
# AvKgMC0EIIsLJKLfrWzk/EsYC8ogrGitISzFt8iWLAqxuxtuhv1StstleD4mZMK8
# gH+ZH5tsls2IiTIKkHfcbUcA55efDrQHGDat7n1Q0EWqOjET0soES+GpS0Jj6IXK
# uOnsDZ7MLFU/SbpckicLQ/JwNi3HiIfQgBVB2aJZ+cg8CGqaQCI5ZvWs7XFpUgkb
# naA4IR5mdNgXJm7ttBKbWarPNcmdODqa/5YDjXdyHmMx3JD994k1y5LIi3o69TgI
# rgHzU8ChZqaBDEvNa5KGtadQPnaSBP15Yqbp5rn2knVRKjDdyCdB94aWO5tZkmaO
# ARFmNk6h5bhwXdXl2Hu67RS2Kd0/fHMFWsxyHAX4NYT+Vq+ZTjLdaPzwFdfA0yAz
# wXWn0EAeYQ5M2xOPfDM/JYSc1THSzhpwy/CBrRjrCRZMDE+bx9BRC7pUXwquE8xF
# CW1NUxkvZikQeiMzgEBbTA==
# =u6u8
# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 13 Sep 2024 16:13:13 BST
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# gpg: aka "Peter Maydell <peter@archaic.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE

* tag 'pull-target-arm-20240913' of https://git.linaro.org/people/pmaydell/qemu-arm: (27 commits)
hw/intc/arm_gic: fix spurious level triggered interrupts
MAINTAINERS: Add my-self as CAN maintainer
MAINTAINERS: Update Xilinx Versal OSPI maintainer's email address
MAINTAINERS: Remove Vikram Garhwal as maintainer
hw/net/can/xlnx-versal-canfd: Fix FIFO issues
hw/net/can/xlnx-versal-canfd: Simplify DLC conversions
hw/net/can/xlnx-versal-canfd: Fix byte ordering
hw/net/can/xlnx-versal-canfd: Handle flags correctly
hw/net/can/xlnx-versal-canfd: Translate CAN ID registers
hw/net/can/xlnx-versal-canfd: Fix CAN FD flag check
hw/net/can/xlnx-versal-canfd: Fix interrupt level
target/arm/tcg: refine cache descriptions with a wrapper
hvf: arm: Implement and use hvf_get_physical_address_range
hvf: Split up hv_vm_create logic per arch
hw/boards: Add hvf_get_physical_address_range to MachineClass
kvm: Use 'unsigned long' for request argument in functions wrapping ioctl()
hw/core/resettable: Remove transitional_function machinery
hw/core/qdev: Simplify legacy_reset handling
hw: Remove device_phases_reset()
hw: Rename DeviceClass::reset field to legacy_reset
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

kvm: Use 'unsigned long' for request argument in functions wrapping ioctl()

Change the data type of the ioctl _request_ argument from 'int' to
'unsigned long' for the various accel/kvm functions whi

kvm: Use 'unsigned long' for request argument in functions wrapping ioctl()

Change the data type of the ioctl _request_ argument from 'int' to
'unsigned long' for the various accel/kvm functions which are
essentially wrappers around the ioctl() syscall.

The correct type for ioctl()'s 'request' argument is confused:
* POSIX defines the request argument as 'int'
* glibc uses 'unsigned long' in the prototype in sys/ioctl.h
* the glibc info documentation uses 'int'
* the Linux manpage uses 'unsigned long'
* the Linux implementation of the syscall uses 'unsigned int'

If we wrap ioctl() with another function which uses 'int' as the
type for the request argument, then requests with the 0x8000_0000
bit set will be sign-extended when the 'int' is cast to
'unsigned long' for the call to ioctl().

On x86_64 one such example is the KVM_IRQ_LINE_STATUS request.
Bit requests with the _IOC_READ direction bit set, will have the high
bit set.

Fortunately the Linux Kernel truncates the upper 32bit of the request
on 64bit machines (because it uses 'unsigned int', and see also Linus
Torvalds' comments in
https://sourceware.org/bugzilla/show_bug.cgi?id=14362 )
so this doesn't cause active problems for us. However it is more
consistent to follow the glibc ioctl() prototype when we define
functions that are essentially wrappers around ioctl().

This resolves a Coverity issue where it points out that in
kvm_get_xsave() we assign a value (KVM_GET_XSAVE or KVM_GET_XSAVE2)
to an 'int' variable which can't hold it without overflow.

Resolves: Coverity CID 1547759
Signed-off-by: Johannes Stoelp <johannes.stoelp@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20240815122747.3053871-1-peter.maydell@linaro.org
[PMM: Rebased patch, adjusted commit message, included note about
Coverity fix, updated the type of the local var in kvm_get_xsave,
updated the comment in the KVMState struct definition]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* fix RAPL computations

# -----BEGIN PGP SIGNATURE-----
#
# iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAma83sIUHHBib256aW5p

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* fix RAPL computations

# -----BEGIN PGP SIGNATURE-----
#
# iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAma83sIUHHBib256aW5p
# QHJlZGhhdC5jb20ACgkQv/vSX3jHroO4OAf/SCiETP35wStOQ1MDfQoW9BUltlyS
# 0bHJ9fiVPUs8iVXoUOY83P33dBYLpkAutmdw38pxD9JDH99wM5e4Etgks1GxLjtj
# aDWMyxskguVKxR0iT92jcM7kFZKYqzssIoXrPFq7cC4LYw9t5wOEUnPxRXBphlao
# 1lLdkJlDzHsU/K+VSAdB81T/Og+E6BpcBZTLD9EONUvcqHSiGp65omNf+dPporkO
# U2egOFqcbhH6+jdQoRwBeXvGnIny8nHLVyOEbZWygeZqfo2PWR5PQ3DqOR7sj5RT
# w9DIxtkpMdHWT1D/+8etDnb3XWYRnZNLhK5B3w4HpZUcBecyxmcXj6nxXA==
# =Uvzx
# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 15 Aug 2024 02:43:46 AM AEST
# 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]

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
target/i386: Fix arguments for vmsr_read_thread_stat()

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

target/i386: Fix arguments for vmsr_read_thread_stat()

Snapshot of the stat utime and stime for each thread, taken before and
after the pause, must be stored in separate locations

Signed-off-by: An

target/i386: Fix arguments for vmsr_read_thread_stat()

Snapshot of the stat utime and stime for each thread, taken before and
after the pause, must be stored in separate locations

Signed-off-by: Anthony Harivel <aharivel@redhat.com>
Link: https://lore.kernel.org/r/20240807124320.1741124-2-aharivel@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* target/i386: qemu-vmsr-helper fixes
* target/i386: mask off SGX/SGX_LC feature words for non-PC machine
* tests/vm/openbsd:

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* target/i386: qemu-vmsr-helper fixes
* target/i386: mask off SGX/SGX_LC feature words for non-PC machine
* tests/vm/openbsd: Install tomli
* fix issue with 64-bit features (vmx kvm-unit-tests)

# -----BEGIN PGP SIGNATURE-----
#
# iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmaqHL4UHHBib256aW5p
# QHJlZGhhdC5jb20ACgkQv/vSX3jHroPuuwgAhZwTHl1MkjIbIX7IRq39ORmOmk9a
# vNqn32MLsUnSpV1JYrwzLgsNciTDhNkEL56Y4XwFbSUUyen0vvmcEH+/bCVKWb98
# jBk0iHXzfkk3GBd/ZLd4NW/LEeOZY4YBFNzyfhQGP47vSUAle/+VDdqukfJ9rj3J
# o8Mx3YJjYcvoI21WZyhyLGdJtj/yBPwCfxrmhhJAWctIES78/sp1tP0UfmFcysss
# nd7PrAoAXPc2MhBTJk7IwyXSJCnGnDsE4rQXqiVV+TN0S60Zcz+1jzqx0vgzHAk4
# 2oFKdnqxwSO8A2LVDdFpkSAM9F+LFv5a1hrHPikuBjIad9WdDIoPNU6qiw==
# =9vso
# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 31 Jul 2024 09:15:10 PM AEST
# 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]

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
qemu-vmsr-helper: implement --verbose/-v
qemu-vmsr-helper: fix socket loop breakage
target/i386: Clean up error cases for vmsr_read_thread_stat()
target/i386: Fix typo that assign same value twice
target/i386/cpu: Mask off SGX/SGX_LC feature words for non-PC machine
target/i386/cpu: Add dependencies of CPUID 0x12 leaves
target/i386/cpu: Explicitly express SGX_LC and SGX feature words dependency
target/i386/cpu: Remove unnecessary SGX feature words checks
target/i386: Change unavail from u32 to u64
tests/vm/openbsd: Install tomli

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

target/i386: Fix typo that assign same value twice

Should fix: CID 1558553

Signed-off-by: Anthony Harivel <aharivel@redhat.com>
Link: https://lore.kernel.org/r/20240726102632.1324432-2-aharivel@red

target/i386: Fix typo that assign same value twice

Should fix: CID 1558553

Signed-off-by: Anthony Harivel <aharivel@redhat.com>
Link: https://lore.kernel.org/r/20240726102632.1324432-2-aharivel@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...