diff mbox series

[v2,09/10] KVM: x86/mmu: Stop needlessly making MMU pages available for TDP MMU faults

Message ID 20220826231227.4096391-10-dmatlack@google.com (mailing list archive)
State New, archived
Headers show
Series KVM: x86/mmu: Make tdp_mmu read-only and clean up TPD MMU fault handler | expand

Commit Message

David Matlack Aug. 26, 2022, 11:12 p.m. UTC 
Stop calling make_mmu_pages_available() when handling TDP MMU faults.
The TDP MMU does not participate in the "available MMU pages" tracking
and limiting so calling this function is unnecessary work when handling
TDP MMU faults.

Signed-off-by: David Matlack <dmatlack@google.com>
---
 arch/x86/kvm/mmu/mmu.c | 4 ----
 1 file changed, 4 deletions(-)
diff mbox series

Patch

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 8f124a23ab4c..803aed2c0e74 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -4347,10 +4347,6 @@  int kvm_tdp_mmu_page_fault(struct kvm_vcpu *vcpu,
 	if (is_page_fault_stale(vcpu, fault))
 		goto out_unlock;
 
-	r = make_mmu_pages_available(vcpu);
-	if (r)
-		goto out_unlock;
-
 	r = kvm_tdp_mmu_map(vcpu, fault);
 
 out_unlock: