anierin/msm-5.15
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

KVM: x86/mmu: Use yield-safe TDP MMU root iter in MMU notifier unmapping

Browse Source 
[ Upstream commit 7533377215b6ee432c06c5855f6be5d66e694e46 ]

Use the yield-safe variant of the TDP MMU iterator when handling an
unmapping event from the MMU notifier, as most occurences of the event
allow yielding.

Fixes: e1eed5847b ("KVM: x86/mmu: Allow yielding during MMU notifier unmap/zap, if possible")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211120015008.3780032-1-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sean Christopherson
2021-11-20 01:50:08 +00:00
committed by Greg Kroah-Hartman
parent 0855054fa8
commit eabbe74e7d
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/x86/kvm/mmu/tdp_mmu.c
View File

@@ -1100,7 +1100,7 @@ bool kvm_tdp_mmu_unmap_gfn_range(struct kvm *kvm, struct kvm_gfn_range *range,
{
struct kvm_mmu_page *root;
for_each_tdp_mmu_root(kvm, root, range->slot->as_id)
for_each_tdp_mmu_root_yield_safe(kvm, root, range->slot->as_id, false)
flush = zap_gfn_range(kvm, root, range->start, range->end,
range->may_block, flush, false);