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authorArbel Moshe <arbel.moshe@oracle.com>2018-03-12 13:12:53 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2018-03-16 22:02:01 +0100
commit2d7921c499afebac78b13ab9a3758261a97e07b7 (patch)
tree9fbeb2ebc8c352acdbaab0c13857de719467a76b /drivers/regulator/lm363x-regulator.c
parent9718420e9fd462ac6b7ea840f9e63eb6af7e1bda (diff)
KVM: x86: Add support for VMware backdoor Pseudo-PMCs
VMware exposes the following Pseudo PMCs: 0x10000: Physical host TSC 0x10001: Elapsed real time in ns 0x10002: Elapsed apparent time in ns For more info refer to: https://www.vmware.com/files/pdf/techpaper/Timekeeping-In-VirtualMachines.pdf VMware allows access to these Pseduo-PMCs even when read via RDPMC in Ring3 and CR4.PCE=0. Therefore, commit modifies x86 emulator to allow access to these PMCs in this situation. In addition, emulation of these PMCs were added to kvm_pmu_rdpmc(). Signed-off-by: Arbel Moshe <arbel.moshe@oracle.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Reviewed-by: Radim Krčmář <rkrcmar@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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