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-rw-r--r--arch/x86/kvm/x86.c8
-rw-r--r--arch/x86/kvm/xen.c30
-rw-r--r--include/linux/kvm_host.h21
-rw-r--r--virt/kvm/pfncache.c20
4 files changed, 39 insertions, 40 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 59fd55badd73..246bdc9a9154 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3037,12 +3037,12 @@ static void kvm_setup_guest_pvclock(struct kvm_vcpu *v,
unsigned long flags;
read_lock_irqsave(&gpc->lock, flags);
- while (!kvm_gfn_to_pfn_cache_check(v->kvm, gpc, gpc->gpa,
- offset + sizeof(*guest_hv_clock))) {
+ while (!kvm_gpc_check(v->kvm, gpc, gpc->gpa,
+ offset + sizeof(*guest_hv_clock))) {
read_unlock_irqrestore(&gpc->lock, flags);
- if (kvm_gfn_to_pfn_cache_refresh(v->kvm, gpc, gpc->gpa,
- offset + sizeof(*guest_hv_clock)))
+ if (kvm_gpc_refresh(v->kvm, gpc, gpc->gpa,
+ offset + sizeof(*guest_hv_clock)))
return;
read_lock_irqsave(&gpc->lock, flags);
diff --git a/arch/x86/kvm/xen.c b/arch/x86/kvm/xen.c
index 60a9bdd4199f..9187d024d006 100644
--- a/arch/x86/kvm/xen.c
+++ b/arch/x86/kvm/xen.c
@@ -273,14 +273,14 @@ 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_gfn_to_pfn_cache_check(v->kvm, gpc1, gpc1->gpa, user_len1)) {
+ while (!kvm_gpc_check(v->kvm, gpc1, gpc1->gpa, user_len1)) {
read_unlock_irqrestore(&gpc1->lock, flags);
/* When invoked from kvm_sched_out() we cannot sleep */
if (atomic)
return;
- if (kvm_gfn_to_pfn_cache_refresh(v->kvm, gpc1, gpc1->gpa, user_len1))
+ if (kvm_gpc_refresh(v->kvm, gpc1, gpc1->gpa, user_len1))
return;
read_lock_irqsave(&gpc1->lock, flags);
@@ -309,7 +309,7 @@ static void kvm_xen_update_runstate_guest(struct kvm_vcpu *v, bool atomic)
*/
read_lock(&gpc2->lock);
- if (!kvm_gfn_to_pfn_cache_check(v->kvm, gpc2, gpc2->gpa, user_len2)) {
+ if (!kvm_gpc_check(v->kvm, gpc2, gpc2->gpa, user_len2)) {
read_unlock(&gpc2->lock);
read_unlock_irqrestore(&gpc1->lock, flags);
@@ -489,12 +489,12 @@ void kvm_xen_inject_pending_events(struct kvm_vcpu *v)
* little more honest about it.
*/
read_lock_irqsave(&gpc->lock, flags);
- while (!kvm_gfn_to_pfn_cache_check(v->kvm, gpc, gpc->gpa,
- sizeof(struct vcpu_info))) {
+ while (!kvm_gpc_check(v->kvm, gpc, gpc->gpa,
+ sizeof(struct vcpu_info))) {
read_unlock_irqrestore(&gpc->lock, flags);
- if (kvm_gfn_to_pfn_cache_refresh(v->kvm, gpc, gpc->gpa,
- sizeof(struct vcpu_info)))
+ if (kvm_gpc_refresh(v->kvm, gpc, gpc->gpa,
+ sizeof(struct vcpu_info)))
return;
read_lock_irqsave(&gpc->lock, flags);
@@ -554,8 +554,8 @@ 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_gfn_to_pfn_cache_check(v->kvm, gpc, gpc->gpa,
- sizeof(struct vcpu_info))) {
+ while (!kvm_gpc_check(v->kvm, gpc, gpc->gpa,
+ sizeof(struct vcpu_info))) {
read_unlock_irqrestore(&gpc->lock, flags);
/*
@@ -569,8 +569,8 @@ int __kvm_xen_has_interrupt(struct kvm_vcpu *v)
if (in_atomic() || !task_is_running(current))
return 1;
- if (kvm_gfn_to_pfn_cache_refresh(v->kvm, gpc, gpc->gpa,
- sizeof(struct vcpu_info))) {
+ if (kvm_gpc_refresh(v->kvm, gpc, gpc->gpa,
+ sizeof(struct vcpu_info))) {
/*
* If this failed, userspace has screwed up the
* vcpu_info mapping. No interrupts for you.
@@ -1167,7 +1167,7 @@ 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_gfn_to_pfn_cache_check(kvm, gpc, gpc->gpa, PAGE_SIZE))
+ if (!kvm_gpc_check(kvm, gpc, gpc->gpa, PAGE_SIZE))
goto out_rcu;
ret = false;
@@ -1564,7 +1564,7 @@ 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_gfn_to_pfn_cache_check(kvm, gpc, gpc->gpa, PAGE_SIZE))
+ if (!kvm_gpc_check(kvm, gpc, gpc->gpa, PAGE_SIZE))
goto out_rcu;
if (IS_ENABLED(CONFIG_64BIT) && kvm->arch.xen.long_mode) {
@@ -1598,7 +1598,7 @@ 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_gfn_to_pfn_cache_check(kvm, gpc, gpc->gpa, sizeof(struct vcpu_info))) {
+ if (!kvm_gpc_check(kvm, 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.
@@ -1696,7 +1696,7 @@ static int kvm_xen_set_evtchn(struct kvm_xen_evtchn *xe, struct kvm *kvm)
break;
idx = srcu_read_lock(&kvm->srcu);
- rc = kvm_gfn_to_pfn_cache_refresh(kvm, gpc, gpc->gpa, PAGE_SIZE);
+ rc = kvm_gpc_refresh(kvm, gpc, gpc->gpa, PAGE_SIZE);
srcu_read_unlock(&kvm->srcu, idx);
} while(!rc);
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index b8d12356f015..8f874a964313 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1288,16 +1288,15 @@ void kvm_gpc_init(struct gfn_to_pfn_cache *gpc);
* -EFAULT for an untranslatable guest physical address.
*
* This primes a gfn_to_pfn_cache and links it into the @kvm's list for
- * invalidations to be processed. Callers are required to use
- * kvm_gfn_to_pfn_cache_check() to ensure that the cache is valid before
- * accessing the target page.
+ * invalidations to be processed. Callers are required to use kvm_gpc_check()
+ * to ensure that the cache is valid before accessing the target page.
*/
int kvm_gpc_activate(struct kvm *kvm, struct gfn_to_pfn_cache *gpc,
struct kvm_vcpu *vcpu, enum pfn_cache_usage usage,
gpa_t gpa, unsigned long len);
/**
- * kvm_gfn_to_pfn_cache_check - check validity of a gfn_to_pfn_cache.
+ * kvm_gpc_check - check validity of a gfn_to_pfn_cache.
*
* @kvm: pointer to kvm instance.
* @gpc: struct gfn_to_pfn_cache object.
@@ -1314,11 +1313,11 @@ int kvm_gpc_activate(struct kvm *kvm, struct gfn_to_pfn_cache *gpc,
* 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_gfn_to_pfn_cache_check(struct kvm *kvm, struct gfn_to_pfn_cache *gpc,
- gpa_t gpa, unsigned long len);
+bool kvm_gpc_check(struct kvm *kvm, struct gfn_to_pfn_cache *gpc, gpa_t gpa,
+ unsigned long len);
/**
- * kvm_gfn_to_pfn_cache_refresh - update a previously initialized cache.
+ * kvm_gpc_refresh - update a previously initialized cache.
*
* @kvm: pointer to kvm instance.
* @gpc: struct gfn_to_pfn_cache object.
@@ -1335,11 +1334,11 @@ bool kvm_gfn_to_pfn_cache_check(struct kvm *kvm, struct gfn_to_pfn_cache *gpc,
* still lock and check the cache status, as this function does not return
* with the lock still held to permit access.
*/
-int kvm_gfn_to_pfn_cache_refresh(struct kvm *kvm, struct gfn_to_pfn_cache *gpc,
- gpa_t gpa, unsigned long len);
+int kvm_gpc_refresh(struct kvm *kvm, struct gfn_to_pfn_cache *gpc, gpa_t gpa,
+ unsigned long len);
/**
- * kvm_gfn_to_pfn_cache_unmap - temporarily unmap a gfn_to_pfn_cache.
+ * kvm_gpc_unmap - temporarily unmap a gfn_to_pfn_cache.
*
* @kvm: pointer to kvm instance.
* @gpc: struct gfn_to_pfn_cache object.
@@ -1348,7 +1347,7 @@ int kvm_gfn_to_pfn_cache_refresh(struct kvm *kvm, struct gfn_to_pfn_cache *gpc,
* but at least the mapping from GPA to userspace HVA will remain cached
* and can be reused on a subsequent refresh.
*/
-void kvm_gfn_to_pfn_cache_unmap(struct kvm *kvm, struct gfn_to_pfn_cache *gpc);
+void kvm_gpc_unmap(struct kvm *kvm, struct gfn_to_pfn_cache *gpc);
/**
* kvm_gpc_deactivate - deactivate and unlink a gfn_to_pfn_cache.
diff --git a/virt/kvm/pfncache.c b/virt/kvm/pfncache.c
index 5f83321bfd2a..8c4db3dcaf6d 100644
--- a/virt/kvm/pfncache.c
+++ b/virt/kvm/pfncache.c
@@ -76,8 +76,8 @@ void gfn_to_pfn_cache_invalidate_start(struct kvm *kvm, unsigned long start,
}
}
-bool kvm_gfn_to_pfn_cache_check(struct kvm *kvm, struct gfn_to_pfn_cache *gpc,
- gpa_t gpa, unsigned long len)
+bool kvm_gpc_check(struct kvm *kvm, struct gfn_to_pfn_cache *gpc, gpa_t gpa,
+ unsigned long len)
{
struct kvm_memslots *slots = kvm_memslots(kvm);
@@ -96,7 +96,7 @@ bool kvm_gfn_to_pfn_cache_check(struct kvm *kvm, struct gfn_to_pfn_cache *gpc,
return true;
}
-EXPORT_SYMBOL_GPL(kvm_gfn_to_pfn_cache_check);
+EXPORT_SYMBOL_GPL(kvm_gpc_check);
static void gpc_unmap_khva(struct kvm *kvm, kvm_pfn_t pfn, void *khva)
{
@@ -238,8 +238,8 @@ out_error:
return -EFAULT;
}
-int kvm_gfn_to_pfn_cache_refresh(struct kvm *kvm, struct gfn_to_pfn_cache *gpc,
- gpa_t gpa, unsigned long len)
+int kvm_gpc_refresh(struct kvm *kvm, struct gfn_to_pfn_cache *gpc, gpa_t gpa,
+ unsigned long len)
{
struct kvm_memslots *slots = kvm_memslots(kvm);
unsigned long page_offset = gpa & ~PAGE_MASK;
@@ -333,9 +333,9 @@ out_unlock:
return ret;
}
-EXPORT_SYMBOL_GPL(kvm_gfn_to_pfn_cache_refresh);
+EXPORT_SYMBOL_GPL(kvm_gpc_refresh);
-void kvm_gfn_to_pfn_cache_unmap(struct kvm *kvm, struct gfn_to_pfn_cache *gpc)
+void kvm_gpc_unmap(struct kvm *kvm, struct gfn_to_pfn_cache *gpc)
{
void *old_khva;
kvm_pfn_t old_pfn;
@@ -360,7 +360,7 @@ void kvm_gfn_to_pfn_cache_unmap(struct kvm *kvm, struct gfn_to_pfn_cache *gpc)
gpc_unmap_khva(kvm, old_pfn, old_khva);
}
-EXPORT_SYMBOL_GPL(kvm_gfn_to_pfn_cache_unmap);
+EXPORT_SYMBOL_GPL(kvm_gpc_unmap);
void kvm_gpc_init(struct gfn_to_pfn_cache *gpc)
{
@@ -396,7 +396,7 @@ int kvm_gpc_activate(struct kvm *kvm, struct gfn_to_pfn_cache *gpc,
gpc->active = true;
write_unlock_irq(&gpc->lock);
}
- return kvm_gfn_to_pfn_cache_refresh(kvm, gpc, gpa, len);
+ return kvm_gpc_refresh(kvm, gpc, gpa, len);
}
EXPORT_SYMBOL_GPL(kvm_gpc_activate);
@@ -416,7 +416,7 @@ void kvm_gpc_deactivate(struct kvm *kvm, struct gfn_to_pfn_cache *gpc)
list_del(&gpc->list);
spin_unlock(&kvm->gpc_lock);
- kvm_gfn_to_pfn_cache_unmap(kvm, gpc);
+ kvm_gpc_unmap(kvm, gpc);
}
}
EXPORT_SYMBOL_GPL(kvm_gpc_deactivate);
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-21 13:22:58 +0000