Re: [SeaBIOS] IO APIC emulation failure with qemu-kvm

[Ravi Kumar Kulkarni]

On Mon, Feb 7, 2011 at 2:59 PM, Avi Kivity  wrote:
> On 02/07/2011 11:24 AM, Ravi Kumar Kulkarni wrote:
> > On Mon, Feb 7, 2011 at 2:19 PM, Avi Kivity  wrote:
> > > On 02/07/2011 10:33 AM, Ravi Kumar Kulkarni wrote:
> > > > On Sun, Feb 6, 2011 at 10:50 PM, Avi Kivity    wrote:
> > > > > >    On 02/04/2011 03:58 PM, Jan Kiszka wrote:
> > > > > > >>
> > > > > > >
> > > > > > >  >>    >       when i run my kernel image with qemu-kvm it gives
> > > > > > > emulation
> > > > > > >  >>  error
> > > > > > >  >>    >    failure
> > > > > > >  >>    >      trying to execute the code outside ROM or RAM at
> > > > > > > fec00000(IO
> > > > > > >  >>  APIC base
> > > > > > >  >>    >    address)
> > > > > > >  >>    >      but the same code runs fine with qemu. can anyone
> > > > > > > please point
> > > > > > >  >>  me
> > > > > > >  >>    >      where might be the problem or how to find out this
> > > > > > > one?
> > > > >
> > > > > >
> > > > >  >    Please post the error message.
> > > >
> > > > Im attachin the error message in kvm.txt file  with  above mail.
> > > >     KVM internal error. Suberror: 1
> > > >
> > > > rax
> > > >  000000000000000d rbx 000000001e2db2a6 rcx 00000000fa4bec19 rdx
> > > >  0000000000000088
> > > >                             rsi 000000001f4de1ea rdi 0000000000000000
> > > > rsp
> > > >  00000000000c0004 rbp 000000001f464fbb
> > > >
> > > > r8  0000000000000000 r9
> > > >  0000000000000000
> > > >  r10 0000000000000000 r11 0000000000000000
> > > >
> > > > r12
> > > >  0000000000000000 r13 0000000000000000 r14 0000000000000000 r15
> > > >  0000000000000000
> > > >                            rip 000000001e2f3f7b rflags 00010097
> > > >                                                                cs 0008
> > > >  (00000000/ffffffff p 1 dpl 0 db 1 s 1 type b l 0 g
> > >
> > > What's the guest code at rip 0x1e2f3f7b ?
> >
> > please find the code below.
> >
> > (qemu) xp /20iw 0x1e2f3f83
>
> That is not the same address.  And the code you posted doesn't make any
> sense.

sorry for the mistake. here's the correct one

(qemu) xp /20iw 0x1e2f3f7b
                      0x000000001e2f3f7b:  (bad)
                      0x000000001e2f3f7c:  std
                      0x000000001e2f3f7d:  (bad)
                      0x000000001e2f3f7e:  (bad)
                      0x000000001e2f3f7f:  decl   0x28000000
                      0x000000001e2f3f85:  loope  0x1e2f3f87
                      0x000000001e2f3f87:  add    %cl,0x81e2f4c(%edi)
                      0x000000001e2f3f8d:  add    %al,(%eax)
                      0x000000001e2f3f8f:  add    %al,(%edi)
                      0x000000001e2f3f91:  add    %al,(%ecx)
                      0x000000001e2f3f93:  add    %ch,(%edx)
                      0x000000001e2f3f95:  loope  0x1e2f3fe4
                      0x000000001e2f3f97:  pop    %ds
                      0x000000001e2f3f98:  mov    %cl,%ah
                      0x000000001e2f3f9a:  dec    %ebp
                      0x000000001e2f3f9b:  pop    %ds
                      0x000000001e2f3f9c:  or     $0xb41f4de0,%eax
                      0x000000001e2f3fa1:  aas
                      0x000000001e2f3fa2:  das
                      0x000000001e2f3fa3:  push   %ds

Warm regards,
Ravi Kulkarni.