| Message ID | 20190110180706.24974-7-sean.j.christopherson@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | KVM: x86/mmu: Remove fast invalidate mechanism | expand |
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index df41193aba38..3d92c49003b0 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -2704,11 +2704,7 @@ static int kvm_mmu_prepare_zap_page(struct kvm *kvm, struct kvm_mmu_page *sp, } else { list_move(&sp->link, &kvm->arch.active_mmu_pages); - /* - * The obsolete pages can not be used on any vcpus. - * See the comments in kvm_mmu_invalidate_zap_all_pages(). - */ - if (!sp->role.invalid && !is_obsolete_sp(kvm, sp)) + if (!sp->role.invalid) kvm_reload_remote_mmus(kvm); }
Unwinding usage of is_obsolete() is a step towards removing x86's fast invalidate mechanism, i.e. this is one part of a revert all patches from the series that introduced the mechanism[1]. This is a partial revert of commit 05988d728dcd ("KVM: MMU: reduce KVM_REQ_MMU_RELOAD when root page is zapped"). [1] https://lkml.kernel.org/r/1369960590-14138-1-git-send-email-xiaoguangrong@linux.vnet.ibm.com Cc: Xiao Guangrong <guangrong.xiao@gmail.com> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> --- arch/x86/kvm/mmu.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)