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

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On Mon, Feb 7, 2011 at 2:59 PM, Avi Kivity <avi@xxxxxxxxxx> wrote:
> On 02/07/2011 11:24 AM, Ravi Kumar Kulkarni wrote:
>>
>> On Mon, Feb 7, 2011 at 2:19 PM, Avi Kivity<avi@xxxxxxxxxx>  wrote:
>> >  On 02/07/2011 10:33 AM, Ravi Kumar Kulkarni wrote:
>> >>
>> >>  On Sun, Feb 6, 2011 at 10:50 PM, Avi Kivity<avi@xxxxxxxxxx>    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.
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