On 15/02/2017 12:33, David Hildenbrand wrote: > Am 15.02.2017 um 12:10 schrieb Wanpeng Li: >> From: Wanpeng Li <[email protected]> >> >> When I run kvm-unit-tests/vmx.flat in L1, The L2 fails to boot due to VM >> entry with invalid control field. >> >> KVM: entry failed, hardware error 0x7 >> EAX=00000000 EBX=00000000 ECX=00000000 EDX=000306c3 >> ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000 >> EIP=0000fff0 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 >> ES =0000 00000000 0000ffff 00009300 >> CS =f000 ffff0000 0000ffff 00009b00 >> SS =0000 00000000 0000ffff 00009300 >> DS =0000 00000000 0000ffff 00009300 >> FS =0000 00000000 0000ffff 00009300 >> GS =0000 00000000 0000ffff 00009300 >> LDT=0000 00000000 0000ffff 00008200 >> TR =0000 00000000 0000ffff 00008b00 >> GDT= 00000000 0000ffff >> IDT= 00000000 0000ffff >> CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000 >> DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 >> DR3=0000000000000000 >> DR6=00000000ffff0ff0 DR7=0000000000000400 >> EFER=0000000000000000 >> >> nested_get_vmcs12_pages() fails to set VIRTUAL_APIC_PAGE_ADDR field in >> vmcs02 even if acquires a virtual apic page. This patch fixes it by >> setting VIRTUAL_APIC_PAGE_ADDR field in vmcs02 once acquires a virtual >> apic page. >> >> Signed-off-by: Wanpeng Li <[email protected]> >> --- >> arch/x86/kvm/vmx.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c >> index 204d6e6..650f3433 100644 >> --- a/arch/x86/kvm/vmx.c >> +++ b/arch/x86/kvm/vmx.c >> @@ -9685,7 +9685,7 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu >> *vcpu, >> * control. But such a configuration is useless, so >> * let's keep the code simple. >> */ >> - if (!vmx->nested.virtual_apic_page) { >> + if (vmx->nested.virtual_apic_page) { >> hpa = page_to_phys(vmx->nested.virtual_apic_page); >> vmcs_write64(VIRTUAL_APIC_PAGE_ADDR, hpa); >> } >> > > On which branch is this?
It's kvm/queue, which has a WIP (and mostly untested) version of Jim's nVMX checkpointing patches. Paolo
