diff options
| -rw-r--r-- | arch/x86/kvm/x86.c | 2 | ||||
| -rw-r--r-- | arch/x86/kvm/xen.c | 16 | ||||
| -rw-r--r-- | include/linux/kvm_host.h | 4 | ||||
| -rw-r--r-- | virt/kvm/pfncache.c | 5 |
4 files changed, 11 insertions, 16 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index b5e7aea22110..441f08c3af96 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3035,7 +3035,7 @@ static void kvm_setup_guest_pvclock(struct kvm_vcpu *v, unsigned long flags; read_lock_irqsave(&gpc->lock, flags); - while (!kvm_gpc_check(v->kvm, gpc, gpc->gpa, + while (!kvm_gpc_check(gpc, gpc->gpa, offset + sizeof(*guest_hv_clock))) { read_unlock_irqrestore(&gpc->lock, flags); diff --git a/arch/x86/kvm/xen.c b/arch/x86/kvm/xen.c index 55257c2a1610..148319e980c4 100644 --- a/arch/x86/kvm/xen.c +++ b/arch/x86/kvm/xen.c @@ -272,7 +272,7 @@ static void kvm_xen_update_runstate_guest(struct kvm_vcpu *v, bool atomic) * gfn_to_pfn caches that cover the region. */ read_lock_irqsave(&gpc1->lock, flags); - while (!kvm_gpc_check(v->kvm, gpc1, gpc1->gpa, user_len1)) { + while (!kvm_gpc_check(gpc1, gpc1->gpa, user_len1)) { read_unlock_irqrestore(&gpc1->lock, flags); /* When invoked from kvm_sched_out() we cannot sleep */ @@ -308,7 +308,7 @@ static void kvm_xen_update_runstate_guest(struct kvm_vcpu *v, bool atomic) */ read_lock(&gpc2->lock); - if (!kvm_gpc_check(v->kvm, gpc2, gpc2->gpa, user_len2)) { + if (!kvm_gpc_check(gpc2, gpc2->gpa, user_len2)) { read_unlock(&gpc2->lock); read_unlock_irqrestore(&gpc1->lock, flags); @@ -488,8 +488,7 @@ void kvm_xen_inject_pending_events(struct kvm_vcpu *v) * little more honest about it. */ read_lock_irqsave(&gpc->lock, flags); - while (!kvm_gpc_check(v->kvm, gpc, gpc->gpa, - sizeof(struct vcpu_info))) { + while (!kvm_gpc_check(gpc, gpc->gpa, sizeof(struct vcpu_info))) { read_unlock_irqrestore(&gpc->lock, flags); if (kvm_gpc_refresh(v->kvm, gpc, gpc->gpa, @@ -553,8 +552,7 @@ int __kvm_xen_has_interrupt(struct kvm_vcpu *v) sizeof_field(struct compat_vcpu_info, evtchn_upcall_pending)); read_lock_irqsave(&gpc->lock, flags); - while (!kvm_gpc_check(v->kvm, gpc, gpc->gpa, - sizeof(struct vcpu_info))) { + while (!kvm_gpc_check(gpc, gpc->gpa, sizeof(struct vcpu_info))) { read_unlock_irqrestore(&gpc->lock, flags); /* @@ -1158,7 +1156,7 @@ static bool wait_pending_event(struct kvm_vcpu *vcpu, int nr_ports, read_lock_irqsave(&gpc->lock, flags); idx = srcu_read_lock(&kvm->srcu); - if (!kvm_gpc_check(kvm, gpc, gpc->gpa, PAGE_SIZE)) + if (!kvm_gpc_check(gpc, gpc->gpa, PAGE_SIZE)) goto out_rcu; ret = false; @@ -1580,7 +1578,7 @@ int kvm_xen_set_evtchn_fast(struct kvm_xen_evtchn *xe, struct kvm *kvm) idx = srcu_read_lock(&kvm->srcu); read_lock_irqsave(&gpc->lock, flags); - if (!kvm_gpc_check(kvm, gpc, gpc->gpa, PAGE_SIZE)) + if (!kvm_gpc_check(gpc, gpc->gpa, PAGE_SIZE)) goto out_rcu; if (IS_ENABLED(CONFIG_64BIT) && kvm->arch.xen.long_mode) { @@ -1614,7 +1612,7 @@ int kvm_xen_set_evtchn_fast(struct kvm_xen_evtchn *xe, struct kvm *kvm) gpc = &vcpu->arch.xen.vcpu_info_cache; read_lock_irqsave(&gpc->lock, flags); - if (!kvm_gpc_check(kvm, gpc, gpc->gpa, sizeof(struct vcpu_info))) { + if (!kvm_gpc_check(gpc, gpc->gpa, sizeof(struct vcpu_info))) { /* * Could not access the vcpu_info. Set the bit in-kernel * and prod the vCPU to deliver it for itself. diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 73ded328f9dc..befc8114ed0d 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1298,7 +1298,6 @@ int kvm_gpc_activate(struct gfn_to_pfn_cache *gpc, gpa_t gpa, unsigned long len) /** * kvm_gpc_check - check validity of a gfn_to_pfn_cache. * - * @kvm: pointer to kvm instance. * @gpc: struct gfn_to_pfn_cache object. * @gpa: current guest physical address to map. * @len: sanity check; the range being access must fit a single page. @@ -1313,8 +1312,7 @@ int kvm_gpc_activate(struct gfn_to_pfn_cache *gpc, gpa_t gpa, unsigned long len) * Callers in IN_GUEST_MODE may do so without locking, although they should * still hold a read lock on kvm->scru for the memslot checks. */ -bool kvm_gpc_check(struct kvm *kvm, struct gfn_to_pfn_cache *gpc, gpa_t gpa, - unsigned long len); +bool kvm_gpc_check(struct gfn_to_pfn_cache *gpc, gpa_t gpa, unsigned long len); /** * kvm_gpc_refresh - update a previously initialized cache. diff --git a/virt/kvm/pfncache.c b/virt/kvm/pfncache.c index d8ce30b893d9..decf4fdde668 100644 --- a/virt/kvm/pfncache.c +++ b/virt/kvm/pfncache.c @@ -76,10 +76,9 @@ void gfn_to_pfn_cache_invalidate_start(struct kvm *kvm, unsigned long start, } } -bool kvm_gpc_check(struct kvm *kvm, struct gfn_to_pfn_cache *gpc, gpa_t gpa, - unsigned long len) +bool kvm_gpc_check(struct gfn_to_pfn_cache *gpc, gpa_t gpa, unsigned long len) { - struct kvm_memslots *slots = kvm_memslots(kvm); + struct kvm_memslots *slots = kvm_memslots(gpc->kvm); if (!gpc->active) return false; |