Re: [Qemu-devel] Pentium Pro Feature Bugs

[tedheadster]

On Thu, May 16, 2019 at 10:57 PM Paolo Bonzini <address@hidden> wrote:
>
> On 17/05/19 02:30, tedheadster wrote:
> > Paolo,
> >   I am running the kvm32 machine and I see a problem. Here is the
> > output of /proc/cpuinfo :
> >
> > flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca
> > cmov constant_tsc
> >
> > I see something rather important missing: cpuid.
> >
> > A lot of stuff breaks without cpuid, and I am fairly sure that qemu is
> > supposed to 'hard code' in support for it. It is present with both my
> > i486 and i586 virtual machines.
> >
> > - Matthew
> >
>
> That's weird... The cpuid flag does not come from QEMU, it is a "soft"
> flag determined by trying to toggle EFLAGS.ID and EFLAGS.ID behaves the
> same for all CPU models.  What else do you see in /proc/cpuinfo?
>
> Paolo

Here is all of /proc/cpuinfo

processor       : 7
vendor_id       : GenuineIntel
cpu family      : 15
model           : 6
model name      : Common 32-bit KVM processor
stepping        : 1
microcode       : 0x1
cpu MHz         : 2394.405
cache size      : 16384 KB
physical id     : 7
siblings        : 1
core id         : 0
cpu cores       : 1
apicid          : 7
initial apicid  : 7
fdiv_bug        : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 5
wp              : yes
        stant_tsc        : fpu vme de pse tsc msr pae mce cx8 apic
mtrr pge mca cmov cons
bugs            : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf
bogomips        : 4789.21
clflush size    : 32
cache_alignment : 32
address sizes   : 32 bits physical, 0 bits virtual
power management: