On Wed, Mar 15, 2017 at 04:21:41PM -0400, Gabriel L. Somlo wrote:
> >
> > - do you see VM exits on the "hung" VCPU?
>
> how would I go about looking ?
>
> > - what is your CPU model?
>
> $ cat /proc/cpuinfo
> ...
> processor : 3
> vendor_id : GenuineIntel
> cpu family : 6
> model : 15
> model name : Intel(R) Xeon(R) CPU 5150 @ 2.66GHz
> stepping : 6
> microcode : 0xd2
> cpu MHz : 2659.966
> cache size : 4096 KB
> physical id : 3
> siblings : 2
> core id : 0
> cpu cores : 2
> apicid : 6
> initial apicid : 6
> fpu : yes
> fpu_exception : yes
> cpuid level : 10
> wp : yes
> 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 dca lahf_lm tpr_shadow dtherm
> bugs :
> bogomips : 5320.04
> clflush size : 64
> cache_alignment : 64
> address sizes : 36 bits physical, 48 bits virtual
> power management:
>
> (this is 2x dual-core Xeon on a Mac Pro 1,1 -- all I had to spare for
> testing, to avoid having to reboot my primary desktop :)
Oh, in case you meant what I use on the qemu command line:
qemu-system-x86_64 -enable-kvm -m 2048 -cpu core2duo \
-machine q35 -smp 4,cores=2 \
-device isa-applesmc,osk="...osk.value.from.smc.goes.here..." \
-usb -device usb-kbd -device usb-mouse \
-smbios type=2 -kernel ./chameleon_boot \
-device ide-drive,bus=ide.2,drive=MacHDD \
-drive id=MacHDD,if=none,snapshot=on,file=./mac_10.7.img \
-monitor stdio
so, core2duo -- it's the only thing OS X 10.7 will find acceptable.
>
> > - what do you get after running this C program on host and guest?
> >
> > #include <stdint.h>
> > #include <stdio.h>
> >
> > int main(void) {
> > uint32_t eax = 5, ebx, ecx = 0, edx;
> > asm ("cpuid" : "+a"(eax), "=b"(ebx), "+c"(ecx), "=d"(edx));
> >
> > printf("eax=%#08x ebx=%#08x ecx=%#08x edx=%#08x\n", eax, ebx, ecx, edx);
> >
> > return 0;
> > }
>
> eax=0x000040 ebx=0x000040 ecx=0x000003 edx=0x000020
>
> HTH,
> --G
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