diff options
| author | Sean Christopherson <seanjc@google.com> | 2024-10-10 11:24:25 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-10-25 13:01:35 -0400 |
| commit | 2362506f7cff7cdd6b734b7d350568a545a1009b (patch) | |
| tree | dd503bbd8aceebfde08606b6452b8d5836b9aa80 /arch/arm64/include | |
| parent | 66bc627e7feef1e2b8fc59398d4da7f5edcd216c (diff) | |
KVM: arm64: Don't mark "struct page" accessed when making SPTE young
Don't mark pages/folios as accessed in the primary MMU when making a SPTE
young in KVM's secondary MMU, as doing so relies on
kvm_pfn_to_refcounted_page(), and generally speaking is unnecessary and
wasteful. KVM participates in page aging via mmu_notifiers, so there's no
need to push "accessed" updates to the primary MMU.
Dropping use of kvm_set_pfn_accessed() also paves the way for removing
kvm_pfn_to_refcounted_page() and all its users.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20241010182427.1434605-84-seanjc@google.com>
Diffstat (limited to 'arch/arm64/include')
| -rw-r--r-- | arch/arm64/include/asm/kvm_pgtable.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/arm64/include/asm/kvm_pgtable.h b/arch/arm64/include/asm/kvm_pgtable.h index 03f4c3d7839c..aab04097b505 100644 --- a/arch/arm64/include/asm/kvm_pgtable.h +++ b/arch/arm64/include/asm/kvm_pgtable.h @@ -674,10 +674,8 @@ int kvm_pgtable_stage2_wrprotect(struct kvm_pgtable *pgt, u64 addr, u64 size); * * If there is a valid, leaf page-table entry used to translate @addr, then * set the access flag in that entry. - * - * Return: The old page-table entry prior to setting the flag, 0 on failure. */ -kvm_pte_t kvm_pgtable_stage2_mkyoung(struct kvm_pgtable *pgt, u64 addr); +void kvm_pgtable_stage2_mkyoung(struct kvm_pgtable *pgt, u64 addr); /** * kvm_pgtable_stage2_test_clear_young() - Test and optionally clear the access |