diff options
| -rw-r--r-- | arch/x86/kvm/mmu_audit.c | 42 |
1 files changed, 18 insertions, 24 deletions
diff --git a/arch/x86/kvm/mmu_audit.c b/arch/x86/kvm/mmu_audit.c index dcca3e7d7b4..66219afcc91 100644 --- a/arch/x86/kvm/mmu_audit.c +++ b/arch/x86/kvm/mmu_audit.c @@ -19,7 +19,11 @@ #include <linux/ratelimit.h> -static const char *audit_msg; +static int audit_point; + +#define audit_printk(fmt, args...) \ + printk(KERN_ERR "audit: (%s) error: " \ + fmt, audit_point_name[audit_point], ##args) typedef void (*inspect_spte_fn) (struct kvm_vcpu *vcpu, u64 *sptep, int level); @@ -93,21 +97,18 @@ static void audit_mappings(struct kvm_vcpu *vcpu, u64 *sptep, int level) if (sp->unsync) { if (level != PT_PAGE_TABLE_LEVEL) { - printk(KERN_ERR "audit: (%s) error: unsync sp: %p level = %d\n", - audit_msg, sp, level); + audit_printk("unsync sp: %p level = %d\n", sp, level); return; } if (*sptep == shadow_notrap_nonpresent_pte) { - printk(KERN_ERR "audit: (%s) error: notrap spte in unsync sp: %p\n", - audit_msg, sp); + audit_printk("notrap spte in unsync sp: %p\n", sp); return; } } if (sp->role.direct && *sptep == shadow_notrap_nonpresent_pte) { - printk(KERN_ERR "audit: (%s) error: notrap spte in direct sp: %p\n", - audit_msg, sp); + audit_printk("notrap spte in direct sp: %p\n", sp); return; } @@ -124,10 +125,8 @@ static void audit_mappings(struct kvm_vcpu *vcpu, u64 *sptep, int level) hpa = pfn << PAGE_SHIFT; if ((*sptep & PT64_BASE_ADDR_MASK) != hpa) - printk(KERN_ERR "xx audit error: (%s) levels %d" - "pfn %llx hpa %llx ent %llxn", - audit_msg, vcpu->arch.mmu.root_level, - pfn, hpa, *sptep); + audit_printk("levels %d pfn %llx hpa %llx ent %llxn", + vcpu->arch.mmu.root_level, pfn, hpa, *sptep); } static void inspect_spte_has_rmap(struct kvm *kvm, u64 *sptep) @@ -143,11 +142,9 @@ static void inspect_spte_has_rmap(struct kvm *kvm, u64 *sptep) if (!gfn_to_memslot(kvm, gfn)) { if (!printk_ratelimit()) return; - printk(KERN_ERR "%s: no memslot for gfn %llx\n", - audit_msg, gfn); - printk(KERN_ERR "%s: index %ld of sp (gfn=%llx)\n", - audit_msg, (long int)(sptep - rev_sp->spt), - rev_sp->gfn); + audit_printk("no memslot for gfn %llx\n", gfn); + audit_printk("index %ld of sp (gfn=%llx)\n", + (long int)(sptep - rev_sp->spt), rev_sp->gfn); dump_stack(); return; } @@ -156,8 +153,7 @@ static void inspect_spte_has_rmap(struct kvm *kvm, u64 *sptep) if (!*rmapp) { if (!printk_ratelimit()) return; - printk(KERN_ERR "%s: no rmap for writable spte %llx\n", - audit_msg, *sptep); + audit_printk("no rmap for writable spte %llx\n", *sptep); dump_stack(); } } @@ -198,10 +194,8 @@ void audit_write_protection(struct kvm *kvm, struct kvm_mmu_page *sp) spte = rmap_next(kvm, rmapp, NULL); while (spte) { if (is_writable_pte(*spte)) - printk(KERN_ERR "%s: (%s) shadow page has " - "writable mappings: gfn %llx role %x\n", - __func__, audit_msg, sp->gfn, - sp->role.word); + audit_printk("shadow page has writable mappings: gfn " + "%llx role %x\n", sp->gfn, sp->role.word); spte = rmap_next(kvm, rmapp, spte); } } @@ -228,14 +222,14 @@ static void audit_vcpu_spte(struct kvm_vcpu *vcpu) mmu_spte_walk(vcpu, audit_spte); } -static void kvm_mmu_audit(void *ignore, struct kvm_vcpu *vcpu, int audit_point) +static void kvm_mmu_audit(void *ignore, struct kvm_vcpu *vcpu, int point) { static DEFINE_RATELIMIT_STATE(ratelimit_state, 5 * HZ, 10); if (!__ratelimit(&ratelimit_state)) return; - audit_msg = audit_point_name[audit_point]; + audit_point = point; audit_all_active_sps(vcpu->kvm); audit_vcpu_spte(vcpu); } |