KVM: VMX: add support for switching of PERF_GLOBAL_CTRL

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Some cpus have special support for switching PERF_GLOBAL_CTRL msr.
Add logic to detect if such support exists and works properly and extend
msr switching code to use it if available. Also extend number of generic
msr switching entries to 8.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

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Gleb Natapov 2011-10-05 14:01:22 +02:00 • committed by Avi Kivity

parent 52e16b185f

commit 8bf00a5299

1 changed files with 93 additions and 11 deletions

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arch/x86/kvm/vmx.c

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