diff options
| author | Sean Christopherson <[email protected]> | 2019-03-07 15:43:02 -0800 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2019-03-28 17:29:00 +0100 |
| commit | 0cf9135b773bf32fba9dd8e6699c1b331ee4b749 (patch) | |
| tree | 3b0ab00d74457a69057f9466fd166ef83dda94fd /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | ca0488aadd014809862428cde896a6a6e8f13e42 (diff) | |
KVM: x86: Emulate MSR_IA32_ARCH_CAPABILITIES on AMD hosts
The CPUID flag ARCH_CAPABILITIES is unconditioinally exposed to host
userspace for all x86 hosts, i.e. KVM advertises ARCH_CAPABILITIES
regardless of hardware support under the pretense that KVM fully
emulates MSR_IA32_ARCH_CAPABILITIES. Unfortunately, only VMX hosts
handle accesses to MSR_IA32_ARCH_CAPABILITIES (despite KVM_GET_MSRS
also reporting MSR_IA32_ARCH_CAPABILITIES for all hosts).
Move the MSR_IA32_ARCH_CAPABILITIES handling to common x86 code so
that it's emulated on AMD hosts.
Fixes: 1eaafe91a0df4 ("kvm: x86: IA32_ARCH_CAPABILITIES is always supported")
Cc: [email protected]
Reported-by: Xiaoyao Li <[email protected]>
Cc: Jim Mattson <[email protected]>
Signed-off-by: Sean Christopherson <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions