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(-)
--
2.26.0
