Commit 5ff05683 authored Feb 05, 2019 by Sean Christopherson Committed by Paolo Bonzini Feb 20, 2019

KVM: x86/mmu: Remove is_obsolete() call

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 05988d72 ("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>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

parent 571c5af0

arch/x86/kvm/mmu.c

+1 −5

Original line number	Diff line number	Diff line
		@@ -2713,11 +2713,7 @@ 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);
		}

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