X86/KVM: Properly update 'tsc_offset' to represent the running guest

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Update 'tsc_offset' on vmentry/vmexit of L2 guests to ensure that it always
captures the TSC_OFFSET of the running guest whether it is the L1 or L2
guest.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Jim Mattson <jmattson@google.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: KarimAllah Ahmed <karahmed@amazon.de>
[AMD changes, fix update_ia32_tsc_adjust_msr. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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This commit is contained in:

KarimAllah Ahmed 2018-04-14 05:10:52 +02:00 • committed by Paolo Bonzini

parent 4e1acd7b31

commit e79f245dde

4 changed files with 56 additions and 22 deletions

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1

arch/x86/include/asm/kvm_host.h

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17

arch/x86/kvm/svm.c

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54

arch/x86/kvm/vmx.c

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6

arch/x86/kvm/x86.c

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