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| author |   Xiaoyao Li <xiaoyao.li@intel.com> | 2020-07-08 14:50:47 +0800 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2020-07-08 16:22:00 -0400 |
| commit | 18964092825aef6faaadf51fbc5fd166168ddf61 (patch) | |
| tree | 8b0118b1786e00c40ce05a0cb3a48e11d2a984c9 /tools/perf/scripts/python/stackcollapse.py | |
| parent | kvm: x86: limit the maximum number of vPMU fixed counters to 3 (diff) | |
| download | linux-dev-18964092825aef6faaadf51fbc5fd166168ddf61.tar.xz linux-dev-18964092825aef6faaadf51fbc5fd166168ddf61.zip | |
KVM: X86: Reset vcpu->arch.cpuid_nent to 0 if SET_CPUID* fails
Current implementation keeps userspace input of CPUID configuration and
cpuid->nent even if kvm_update_cpuid() fails. Reset vcpu->arch.cpuid_nent
to 0 for the case of failure as a simple fix.
Besides, update the doc to explicitly state that if IOCTL SET_CPUID*
fail KVM gives no gurantee that previous valid CPUID configuration is
kept.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20200708065054.19713-2-xiaoyao.li@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions