[PATCH v2 2/2] KVM: nVMX: get rid of nested_release_page*

David Hildenbrand
2017-08-03T16:11:13Z

Let's also just use the underlying functions directly here.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
arch/x86/kvm/vmx.c | 41 +++++++++++++++--------------------------
1 file changed, 15 insertions(+), 26 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 552acdd..877fb51 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -894,17 +894,6 @@ static inline struct vmcs12 *get_vmcs12(struct kvm_vcpu *vcpu)
return to_vmx(vcpu)->nested.cached_vmcs12;
}

-
-static void nested_release_page(struct page *page)
-{
- kvm_release_page_dirty(page);
-}
-
-static void nested_release_page_clean(struct page *page)
-{
- kvm_release_page_clean(page);
-}
-
static bool nested_ept_ad_enabled(struct kvm_vcpu *vcpu);
static unsigned long nested_ept_get_cr3(struct kvm_vcpu *vcpu);
static u64 construct_eptp(struct kvm_vcpu *vcpu, unsigned long root_hpa);
@@ -7094,12 +7083,12 @@ static int handle_vmon(struct kvm_vcpu *vcpu)
}
if (*(u32 *)kmap(page) != VMCS12_REVISION) {
kunmap(page);
- nested_release_page_clean(page);
+ kvm_release_page_clean(page);
nested_vmx_failInvalid(vcpu);
return kvm_skip_emulated_instruction(vcpu);
}
kunmap(page);
- nested_release_page_clean(page);
+ kvm_release_page_clean(page);

vmx->nested.vmxon_ptr = vmptr;
ret = enter_vmx_operation(vcpu);
@@ -7151,7 +7140,7 @@ static inline void nested_release_vmcs12(struct vcpu_vmx *vmx)
VMCS12_SIZE);

kunmap(vmx->nested.current_vmcs12_page);
- nested_release_page(vmx->nested.current_vmcs12_page);
+ kvm_release_page_dirty(vmx->nested.current_vmcs12_page);
vmx->nested.current_vmptr = -1ull;
vmx->nested.current_vmcs12 = NULL;
}
@@ -7180,16 +7169,16 @@ static void free_nested(struct vcpu_vmx *vmx)
kfree(vmx->nested.cached_vmcs12);
/* Unpin physical memory we referred to in current vmcs02 */
if (vmx->nested.apic_access_page) {
- nested_release_page(vmx->nested.apic_access_page);
+ kvm_release_page_dirty(vmx->nested.apic_access_page);
vmx->nested.apic_access_page = NULL;
}
if (vmx->nested.virtual_apic_page) {
- nested_release_page(vmx->nested.virtual_apic_page);
+ kvm_release_page_dirty(vmx->nested.virtual_apic_page);
vmx->nested.virtual_apic_page = NULL;
}
if (vmx->nested.pi_desc_page) {
kunmap(vmx->nested.pi_desc_page);
- nested_release_page(vmx->nested.pi_desc_page);
+ kvm_release_page_dirty(vmx->nested.pi_desc_page);
vmx->nested.pi_desc_page = NULL;
vmx->nested.pi_desc = NULL;
}
@@ -7564,7 +7553,7 @@ static int handle_vmptrld(struct kvm_vcpu *vcpu)
new_vmcs12 = kmap(page);
if (new_vmcs12->revision_id != VMCS12_REVISION) {
kunmap(page);
- nested_release_page_clean(page);
+ kvm_release_page_clean(page);
nested_vmx_failValid(vcpu,
VMXERR_VMPTRLD_INCORRECT_VMCS_REVISION_ID);
return kvm_skip_emulated_instruction(vcpu);
@@ -9527,7 +9516,7 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,
* to it so we can release it later.
*/
if (vmx->nested.apic_access_page) { /* shouldn't happen */
- nested_release_page(vmx->nested.apic_access_page);
+ kvm_release_page_dirty(vmx->nested.apic_access_page);
vmx->nested.apic_access_page = NULL;
}
page = kvm_vcpu_gpa_to_page(vcpu, vmcs12->apic_access_addr);
@@ -9554,7 +9543,7 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,

if (nested_cpu_has(vmcs12, CPU_BASED_TPR_SHADOW)) {
if (vmx->nested.virtual_apic_page) { /* shouldn't happen */
- nested_release_page(vmx->nested.virtual_apic_page);
+ kvm_release_page_dirty(vmx->nested.virtual_apic_page);
vmx->nested.virtual_apic_page = NULL;
}
page = kvm_vcpu_gpa_to_page(vcpu, vmcs12->apic_access_addr);
@@ -9582,7 +9571,7 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,
if (nested_cpu_has_posted_intr(vmcs12)) {
if (vmx->nested.pi_desc_page) { /* shouldn't happen */
kunmap(vmx->nested.pi_desc_page);
- nested_release_page(vmx->nested.pi_desc_page);
+ kvm_release_page_dirty(vmx->nested.pi_desc_page);
vmx->nested.pi_desc_page = NULL;
}
page = kvm_vcpu_gpa_to_page(vcpu, vmcs12->posted_intr_desc_addr);
@@ -9702,7 +9691,7 @@ static inline bool nested_vmx_merge_msr_bitmap(struct kvm_vcpu *vcpu,
}
}
kunmap(page);
- nested_release_page_clean(page);
+ kvm_release_page_clean(page);

return true;
}
@@ -11097,16 +11086,16 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,

/* Unpin physical memory we referred to in vmcs02 */
if (vmx->nested.apic_access_page) {
- nested_release_page(vmx->nested.apic_access_page);
+ kvm_release_page_dirty(vmx->nested.apic_access_page);
vmx->nested.apic_access_page = NULL;
}
if (vmx->nested.virtual_apic_page) {
- nested_release_page(vmx->nested.virtual_apic_page);
+ kvm_release_page_dirty(vmx->nested.virtual_apic_page);
vmx->nested.virtual_apic_page = NULL;
}
if (vmx->nested.pi_desc_page) {
kunmap(vmx->nested.pi_desc_page);
- nested_release_page(vmx->nested.pi_desc_page);
+ kvm_release_page_dirty(vmx->nested.pi_desc_page);
vmx->nested.pi_desc_page = NULL;
vmx->nested.pi_desc = NULL;
}
@@ -11289,7 +11278,7 @@ static int vmx_write_pml_buffer(struct kvm_vcpu *vcpu)
pml_address = kmap(page);
pml_address[vmcs12->guest_pml_index--] = gpa;
kunmap(page);
- nested_release_page_clean(page);
+ kvm_release_page_clean(page);
}

return 0;
--
2.9.4