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| author | Vitaly Kuznetsov <[email protected]> | 2022-08-30 15:37:19 +0200 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2022-09-26 12:02:47 -0400 |
| commit | 4da77090b0fcec1aa430e67631a1474343a33738 (patch) | |
| tree | 77de6c389ad807036971e1c9aa2c1dd25489903f /tools/perf/scripts/python/check-perf-trace.py | |
| parent | 3ff8a13d41b283932ec6ac692c6def22a157269b (diff) | |
KVM: nVMX: Support PERF_GLOBAL_CTRL with enlightened VMCS
Enlightened VMCS v1 got updated and now includes the required fields
for loading PERF_GLOBAL_CTRL upon VMENTER/VMEXIT features. For KVM on
Hyper-V enablement, KVM can just observe VMX control MSRs and use the
features (with or without eVMCS) when possible.
Hyper-V on KVM is messier as Windows 11 guests fail to boot if the
controls are advertised and a new PV feature flag, CPUID.0x4000000A.EBX
BIT(0), is not set. Honor the Hyper-V CPUID feature flag to play nice
with Windows guests.
Signed-off-by: Vitaly Kuznetsov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sean Christopherson <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions