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| author | Uri Lublin <uril@qumranet.com> | 2007-02-21 18:25:21 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2007-03-04 11:12:42 +0200 |
| commit | ab51a434c5816e1ca3f033791c1cc5c6594998ec (patch) | |
| tree | f806c9013d8d28cb585163eac7f6526c09965a30 | |
| parent | f7e6a45ad9224dfe9f0d76a45c43be7ccafe0b82 (diff) | |
| download | linux-ab51a434c5816e1ca3f033791c1cc5c6594998ec.tar.gz | |
KVM: Add missing calls to mark_page_dirty()
A few places where we modify guest memory fail to call mark_page_dirty(), causing live migration to fail. This adds the missing calls. Signed-off-by: Uri Lublin <uril@qumranet.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| -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 a593d092d85b..edff4055b32b 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); |