diff mbox series

[6/9] KVM: x86/mmu: Stop needlessly making MMU pages available for TDP MMU faults

Message ID 20220815230110.2266741-7-dmatlack@google.com (mailing list archive)
State New, archived
Headers show
Series KVM: x86/mmu: Always enable the TDP MMU when TDP is enabled | expand

Commit Message

David Matlack Aug. 15, 2022, 11:01 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 182f9f417e4e..6613ae387e1b 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -4345,10 +4345,6 @@  int kvm_tdp_page_fault(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault)
 	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: