diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/kvm/kvm_main.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index a593d092d85..edff4055b32 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -228,12 +228,15 @@ int kvm_write_guest(struct kvm_vcpu *vcpu, gva_t addr, unsigned long size, unsigned now; unsigned offset; hva_t guest_buf; + gfn_t gfn; paddr = gva_to_hpa(vcpu, addr); if (is_error_hpa(paddr)) break; + gfn = vcpu->mmu.gva_to_gpa(vcpu, addr) >> PAGE_SHIFT; + mark_page_dirty(vcpu->kvm, gfn); guest_buf = (hva_t)kmap_atomic( pfn_to_page(paddr >> PAGE_SHIFT), KM_USER0); offset = addr & ~PAGE_MASK; @@ -953,6 +956,7 @@ static int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa, return 0; page = gfn_to_page(m, gpa >> PAGE_SHIFT); kvm_mmu_pre_write(vcpu, gpa, bytes); + mark_page_dirty(vcpu->kvm, gpa >> PAGE_SHIFT); virt = kmap_atomic(page, KM_USER0); memcpy(virt + offset_in_page(gpa), &val, bytes); kunmap_atomic(virt, KM_USER0); @@ -1294,6 +1298,7 @@ static int vcpu_register_para(struct kvm_vcpu *vcpu, gpa_t para_state_gpa) if (is_error_hpa(para_state_hpa)) goto err_gp; + mark_page_dirty(vcpu->kvm, para_state_gpa >> PAGE_SHIFT); para_state_page = pfn_to_page(para_state_hpa >> PAGE_SHIFT); para_state = kmap_atomic(para_state_page, KM_USER0); @@ -1323,6 +1328,7 @@ static int vcpu_register_para(struct kvm_vcpu *vcpu, gpa_t para_state_gpa) vcpu->para_state_gpa = para_state_gpa; vcpu->hypercall_gpa = hypercall_gpa; + mark_page_dirty(vcpu->kvm, hypercall_gpa >> PAGE_SHIFT); hypercall = kmap_atomic(pfn_to_page(hypercall_hpa >> PAGE_SHIFT), KM_USER1) + (hypercall_hpa & ~PAGE_MASK); kvm_arch_ops->patch_hypercall(vcpu, hypercall); |