Ouch. Probably commit 8d860bbeedef ("kvm: vmx: Basic APIC
virtualization controls have three settings").
On Mon, Jul 9, 2018 at 12:01 AM, Zdenek Kaspar <zkaspar82@xxxxxxxxx> wrote:
> Hi, starting VM on old Core2 host emits:
>
> vmwrite error: reg 401e value a02827a0 (err 12)
> CPU: 1 PID: 1680 Comm: qemu-build Not tainted 4.18.0-rc4 #1
> Hardware name: /DG35EC, BIOS ECG3510M.86A.0118.2010.0113.1426 01/13/2010
> Call Trace:
> dump_stack+0x5c/0x80
> vmx_set_virtual_apic_mode+0x169/0x210 [kvm_intel]
> kvm_lapic_set_base+0x76/0x190 [kvm]
> kvm_set_apic_base+0xa7/0xd0 [kvm]
> kvm_set_msr_common+0x877/0xbc0 [kvm]
> ? vmx_vcpu_run+0x38a/0x8f0 [kvm_intel]
> ? vmx_vcpu_run+0x396/0x8f0 [kvm_intel]
> ? vmx_vcpu_run+0x38a/0x8f0 [kvm_intel]
> ? vmx_vcpu_run+0x396/0x8f0 [kvm_intel]
> ? vmx_vcpu_run+0x38a/0x8f0 [kvm_intel]
> handle_wrmsr+0x38/0x70 [kvm_intel]
> vmx_handle_exit+0x90/0xcf0 [kvm_intel]
> ? vmx_vcpu_run+0x38a/0x8f0 [kvm_intel]
> ? vmx_vcpu_run+0x396/0x8f0 [kvm_intel]
> ? vmx_vcpu_run+0x77d/0x8f0 [kvm_intel]
> ? pic_unlock+0x5b/0x80 [kvm]
> kvm_arch_vcpu_ioctl_run+0x52a/0x17d0 [kvm]
> kvm_vcpu_ioctl+0x285/0x510 [kvm]
> ? wake_up_q+0x70/0x70
> do_vfs_ioctl+0x8b/0x5d0
> ? __fget+0x6a/0xa0
> ksys_ioctl+0x35/0x70
> __x64_sys_ioctl+0x11/0x20
> do_syscall_64+0x52/0x300
> ? __schedule+0x1b2/0x5d0
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x7f991b3dbbf7
> Code: 90 90 90 48 8b 05 d1 d3 2a 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff
> ff c3 90 90 90 90 90 90 90 90 90 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff
> 73 01 c3 48 8b 0d a1 d3 2a 00 31 d2 48 29 c2 64
> RSP: 002b:00007f99174c0918 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
> RAX: ffffffffffffffda RBX: 000000000000ae80 RCX: 00007f991b3dbbf7
> RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 000000000000001a
> RBP: 0000000000000000 R08: 0000560c0c8fae50 R09: 0000000000000690
> R10: 0005f5b4e5824f35 R11: 0000000000000246 R12: 0000560c0d8524b0
> R13: 00007f991d55b000 R14: 0000000000000000 R15: 0000560c0d8524b0
> vmwrite error: reg 401e value a02827a0 (err 12)
> CPU: 1 PID: 1681 Comm: qemu-build Not tainted 4.18.0-rc4 #1
> Hardware name: /DG35EC, BIOS ECG3510M.86A.0118.2010.0113.1426 01/13/2010
> Call Trace:
> dump_stack+0x5c/0x80
> vmx_set_virtual_apic_mode+0x169/0x210 [kvm_intel]
> kvm_lapic_set_base+0x76/0x190 [kvm]
> kvm_set_apic_base+0xa7/0xd0 [kvm]
> kvm_set_msr_common+0x877/0xbc0 [kvm]
> ? vmx_vcpu_run+0x38a/0x8f0 [kvm_intel]
> ? vmx_vcpu_run+0x396/0x8f0 [kvm_intel]
> ? vmx_vcpu_run+0x38a/0x8f0 [kvm_intel]
> ? vmx_vcpu_run+0x396/0x8f0 [kvm_intel]
> ? vmx_vcpu_run+0x38a/0x8f0 [kvm_intel]
> handle_wrmsr+0x38/0x70 [kvm_intel]
> vmx_handle_exit+0x90/0xcf0 [kvm_intel]
> ? vmx_vcpu_run+0x38a/0x8f0 [kvm_intel]
> ? vmx_vcpu_run+0x396/0x8f0 [kvm_intel]
> ? vmx_vcpu_run+0x77d/0x8f0 [kvm_intel]
> kvm_arch_vcpu_ioctl_run+0x52a/0x17d0 [kvm]
> kvm_vcpu_ioctl+0x285/0x510 [kvm]
> ? do_futex+0x289/0xa60
> ? signal_setup_done+0x6f/0x90
> ? do_signal+0x3c4/0x590
> do_vfs_ioctl+0x8b/0x5d0
> ? __fget+0x6a/0xa0
> ksys_ioctl+0x35/0x70
> __x64_sys_ioctl+0x11/0x20
> do_syscall_64+0x52/0x300
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x7f991b3dbbf7
> Code: 90 90 90 48 8b 05 d1 d3 2a 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff
> ff c3 90 90 90 90 90 90 90 90 90 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff
> 73 01 c3 48 8b 0d a1 d3 2a 00 31 d2 48 29 c2 64
> RSP: 002b:00007f9916cbf918 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
> RAX: ffffffffffffffda RBX: 000000000000ae80 RCX: 00007f991b3dbbf7
> RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 000000000000001b
> RBP: 0000000000000000 R08: 0000560c0c8fae50 R09: 0000000000000016
> R10: 000000007fffffff R11: 0000000000000246 R12: 0000560c0d8a1170
> R13: 00007f991d558000 R14: 0000000000000000 R15: 0000560c0d8a1170
>
> host kernel: 4.18.0-rc4 (gcc version 8.1.1 20180531, PREEMPT)
>
> cpu family : 6
> model : 15
> model name : Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz
> stepping : 6
> microcode : 0xcb
>
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
> cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm
> constant_tsc arch_perfmon pebs bts rep_good nopl cpuid aperfmperf pni dtes64
> monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm pti tpr_shadow
> dtherm
>
> KVM guests are working fine...
>
> TIA, Z.
