[PATCH 0/2] KVM: nVMX: Skip IPBP on nested VMCS switch

From: Sean Christopherson
Date: Wed May 06 2020 - 19:59:00 EST


Or as Jim would say, "Really skip IPBP on nested VMCS switch" :-D

Patch 1 is the delta between kvm/queue and v3 of the original patch[*],
i.e. I just cherry-picked v3 and fixed the conflicts.

Patch 2 applies the "no IPBP" logic to copy_vmcs02_to_vmcs12_rare().

Feel free to sqaush both of these to commit 7407a52f23732 ("KVM: nVMX:
Skip IBPB when switching between vmcs01 and vmcs02") if you so desire.

[*] https://lkml.kernel.org/r/20200505044644.16563-1-sean.j.christopherson@xxxxxxxxx

Sean Christopherson (2):
KVM: nVMX: Refactor IBPB handling on VMCS switch to genericize code
KVM: nVMX: Skip IPBP when switching between vmcs01 and vmcs02, redux

arch/x86/kvm/vmx/nested.c | 13 +++----------
arch/x86/kvm/vmx/vmx.c | 19 ++++++++++++++-----
arch/x86/kvm/vmx/vmx.h | 4 ++--
3 files changed, 19 insertions(+), 17 deletions(-)

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2.26.0