[PATCH v13 71/85] KVM: MIPS: Mark "struct page" pfns accessed prior to dropping mmu_lock

Sean Christopherson
2024-10-11T00:01:38Z

Mark pages accessed before dropping mmu_lock when faulting in guest memory
so that MIPS can convert to kvm_release_faultin_page() without tripping
its lockdep assertion on mmu_lock being held.

Signed-off-by: Sean Christopherson <seanjc@google.com>
---
arch/mips/kvm/mmu.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/mips/kvm/mmu.c b/arch/mips/kvm/mmu.c
index f1e4b618ec6d..69463ab24d97 100644
--- a/arch/mips/kvm/mmu.c
+++ b/arch/mips/kvm/mmu.c
@@ -634,10 +634,9 @@ static int kvm_mips_map_page(struct kvm_vcpu *vcpu, unsigned long gpa,

if (writeable)
kvm_set_pfn_dirty(pfn);
-
- spin_unlock(&kvm->mmu_lock);
kvm_release_pfn_clean(pfn);
- kvm_set_pfn_accessed(pfn);
+
+ spin_unlock(&kvm->mmu_lock);
out:
srcu_read_unlock(&kvm->srcu, srcu_idx);
return err;