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Subject[PATCH v6 04/12] KVM: introduce gfn_to_pfn_memslot_atomic
It can instead of hva_to_pfn_atomic

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
---
arch/x86/kvm/mmu.c | 5 +----
include/linux/kvm_host.h | 3 ++-
virt/kvm/kvm_main.c | 14 ++++++++------
3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 9651c2c..5548971 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2510,15 +2510,12 @@ static pfn_t pte_prefetch_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn,
bool no_dirty_log)
{
struct kvm_memory_slot *slot;
- unsigned long hva;

slot = gfn_to_memslot_dirty_bitmap(vcpu, gfn, no_dirty_log);
if (!slot)
return KVM_PFN_ERR_FAULT;

- hva = gfn_to_hva_memslot(slot, gfn);
-
- return hva_to_pfn_atomic(hva);
+ return gfn_to_pfn_memslot_atomic(slot, gfn);
}

static int direct_pte_prefetch_many(struct kvm_vcpu *vcpu,
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index d4bd4d4..52c86e4 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -462,7 +462,6 @@ void kvm_release_page_dirty(struct page *page);
void kvm_set_page_dirty(struct page *page);
void kvm_set_page_accessed(struct page *page);

-pfn_t hva_to_pfn_atomic(unsigned long addr);
pfn_t gfn_to_pfn_atomic(struct kvm *kvm, gfn_t gfn);
pfn_t gfn_to_pfn_async(struct kvm *kvm, gfn_t gfn, bool *async,
bool write_fault, bool *writable);
@@ -470,6 +469,8 @@ pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn);
pfn_t gfn_to_pfn_prot(struct kvm *kvm, gfn_t gfn, bool write_fault,
bool *writable);
pfn_t gfn_to_pfn_memslot(struct kvm_memory_slot *slot, gfn_t gfn);
+pfn_t gfn_to_pfn_memslot_atomic(struct kvm_memory_slot *slot, gfn_t gfn);
+
void kvm_release_pfn_dirty(pfn_t pfn);
void kvm_release_pfn_clean(pfn_t pfn);
void kvm_set_pfn_dirty(pfn_t pfn);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 7b94d70..543f9b7 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1102,12 +1102,6 @@ static pfn_t hva_to_pfn(unsigned long addr, bool atomic, bool *async,
return pfn;
}

-pfn_t hva_to_pfn_atomic(unsigned long addr)
-{
- return hva_to_pfn(addr, true, NULL, true, NULL);
-}
-EXPORT_SYMBOL_GPL(hva_to_pfn_atomic);
-
static pfn_t __gfn_to_pfn(struct kvm *kvm, gfn_t gfn, bool atomic, bool *async,
bool write_fault, bool *writable)
{
@@ -1155,6 +1149,14 @@ pfn_t gfn_to_pfn_memslot(struct kvm_memory_slot *slot, gfn_t gfn)
return hva_to_pfn(addr, false, NULL, true, NULL);
}

+pfn_t gfn_to_pfn_memslot_atomic(struct kvm_memory_slot *slot, gfn_t gfn)
+{
+ unsigned long addr = gfn_to_hva_memslot(slot, gfn);
+
+ return hva_to_pfn(addr, true, NULL, true, NULL);
+}
+EXPORT_SYMBOL_GPL(gfn_to_pfn_memslot_atomic);
+
int gfn_to_page_many_atomic(struct kvm *kvm, gfn_t gfn, struct page **pages,
int nr_pages)
{
--
1.7.7.6


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