[PATCH v2 2/2] kvm: x86: move architecture specific code into kvm_arch_vcpu_fault
From: Hou Wenlong
Date: Thu Aug 12 2021 - 00:06:36 EST
The function kvm_arch_vcpu_fault can handle architecture specific
case, so move x86's pio_data hanlding into it.
Suggested-by: Sean Christopherson <seanjc@xxxxxxxxxx>
Signed-off-by: Hou Wenlong <houwenlong93@xxxxxxxxxxxxxxxxx>
---
arch/x86/kvm/x86.c | 2 ++
virt/kvm/kvm_main.c | 4 ----
2 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 1e3bbe5cd33a..25c0752d6cd9 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5349,6 +5349,8 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
struct page *kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
{
+ if (vmf->pgoff == KVM_PIO_PAGE_OFFSET)
+ return virt_to_page(vcpu->arch.pio_data);
return NULL;
}
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index f7d21418971b..43064df5ad87 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -3435,10 +3435,6 @@ static vm_fault_t kvm_vcpu_fault(struct vm_fault *vmf)
if (vmf->pgoff == 0)
page = virt_to_page(vcpu->run);
-#ifdef CONFIG_X86
- else if (vmf->pgoff == KVM_PIO_PAGE_OFFSET)
- page = virt_to_page(vcpu->arch.pio_data);
-#endif
#ifdef CONFIG_KVM_MMIO
else if (vmf->pgoff == KVM_COALESCED_MMIO_PAGE_OFFSET)
page = virt_to_page(vcpu->kvm->coalesced_mmio_ring);
--
2.31.1