diff options
| author | David Matlack <dmatlack@google.com> | 2021-08-17 08:46:45 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-10-01 03:44:56 -0400 |
| commit | 53597858dbf8daab8db99c7e448558fb0f970dbd (patch) | |
| tree | f312c610ccd84dc594c360e8c704e19216f313ac /arch/x86/kvm/mmu/spte.h | |
| parent | 8a9f566ae4a4156343afb5cbfa79401c07647b1d (diff) | |
KVM: x86/mmu: Avoid memslot lookup in make_spte and mmu_try_to_unsync_pages
mmu_try_to_unsync_pages checks if page tracking is active for the given
gfn, which requires knowing the memslot. We can pass down the memslot
via make_spte to avoid this lookup.
The memslot is also handy for make_spte's marking of the gfn as dirty:
we can test whether dirty page tracking is enabled, and if so ensure that
pages are mapped as writable with 4K granularity. Apart from the warning,
no functional change is intended.
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20210813203504.2742757-7-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu/spte.h')
| -rw-r--r-- | arch/x86/kvm/mmu/spte.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu/spte.h b/arch/x86/kvm/mmu/spte.h index cbb02a961ac2..7c0b09461349 100644 --- a/arch/x86/kvm/mmu/spte.h +++ b/arch/x86/kvm/mmu/spte.h @@ -335,6 +335,7 @@ static inline u64 get_mmio_spte_generation(u64 spte) } bool make_spte(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp, + struct kvm_memory_slot *slot, unsigned int pte_access, gfn_t gfn, kvm_pfn_t pfn, u64 old_spte, bool speculative, bool can_unsync, bool host_writable, u64 *new_spte); |