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KVM: x86: pass struct kvm_mmu_page to gfn_to_rmap

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This is always available (with one exception in the auditing code),
and with the same auditing exception the level was coming from
sp->role.level.

Later, the spte's role will also be used to look up the right memslots
array.

Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini
2015-05-18 15:11:46 +02:00
parent f481b069e6
commit e4cd1da944
2 changed files with 11 additions and 7 deletions
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8
arch/x86/kvm/mmu_audit.c
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@@ -146,7 +146,7 @@ static void inspect_spte_has_rmap(struct kvm *kvm, u64 *sptep)
return;
}
rmapp = gfn_to_rmap(kvm, gfn, rev_sp->role.level);
rmapp = gfn_to_rmap(kvm, gfn, rev_sp);
if (!*rmapp) {
if (!__ratelimit(&ratelimit_state))
return;
@@ -191,11 +191,15 @@ static void audit_write_protection(struct kvm *kvm, struct kvm_mmu_page *sp)
unsigned long *rmapp;
u64 *sptep;
struct rmap_iterator iter;
struct kvm_memslots *slots;
struct kvm_memory_slot *slot;
if (sp->role.direct || sp->unsync || sp->role.invalid)
return;
rmapp = gfn_to_rmap(kvm, sp->gfn, PT_PAGE_TABLE_LEVEL);
slots = kvm_memslots(kvm);
slot = __gfn_to_memslot(slots, sp->gfn);
rmapp = __gfn_to_rmap(sp->gfn, PT_PAGE_TABLE_LEVEL, slot);
for_each_rmap_spte(rmapp, &iter, sptep)
if (is_writable_pte(*sptep))