Hi Gleb, On Tue, Jul 30, 2013 at 09:42:12AM +0200, Gleb Natapov wrote: > On Tue, Jul 30, 2013 at 09:31:17AM +0200, Marius Vlad wrote: > > Hi Arthur, > > > > I'm trying to test your patch on a SandyBridge machine. > > > > Used 'nested=1' when loading kvm (from 3.9-1-amd64) > Should be kvm-intel, but you will get error otherwise, so I assume that > this is what you did. Indeed. > > > and qemu (emulator version 1.5.1 (Debian 1.5.0+dfsg-5)). > > > > Without nested=1 I get ``unhandled excecption 13'', so I presume > > this is OK, with it, the test_vmx_capability() fails at > > detecting vmx. > > > > I've used for qemu: > > $ qemu-system-x86_64 -enable-kvm -device pc-testdev -device > > isa-debug-exit,iobase=0xf4,iosize=0x4 -display none -serial stdio -device > > pci-testdev -kernel x86/vmx.flat -cpu SandyBridge,+vmx,+x2apic -smp 1 > > > > Are there any knobs which I should further tune? > > > On the first glance you have everything that is needed. What is the output of > "cat /proc/cpuinfo" in the guest is? (initramfs) cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel Xeon E312xx (Sandy Bridge) stepping : 1 microcode : 0x1 cpu MHz : 3410.012 cache size : 4096 KB fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx rdtscp lm constant_tsc arch_perfmon rep_good nopl eagerfpu pni pclmulqdq vmx ssse3 cx16 sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx hypervisor lahf_lm xsaveopt bogomips : 6820.02 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: Used: $ qemu-system-x86_64 -enable-kvm -device pc-testdev -device\ isa-debug-exit,iobase=0xf4,iosize=0x4 -display none -serial stdio -device\ pci-testdev -kernel /boot/vmlinuz-3.9-1-amd64 -initrd\ /boot/initrd.img-3.9-1-amd64 -append 'init=/bin/bash console=ttyS0' -cpu\ SandyBridge,+vmx,+x2apic -smp 1 -serial stdio > > -- > Gleb. >
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