Re: [Qemu-devel] PC machine types switched to SeaBIOS/gPXE

[Gleb Natapov]

On Mon, Nov 02, 2009 at 01:51:56PM +0100, Alexander Graf wrote:
> Anthony Liguori wrote:
> > Hi,
> >
> > I just wanted to let everyone know that I've switched the PC machine
> > type to SeaBIOS and gPXE.  SeaBIOS is a port of the Bochs BIOS to GCC,
> > by Kevin O'Conner, along with quite a lot of clean up and new feature
> > work.
> >
> > gPXE is the new development tree of etherboot which is now
> > deprecated.  We've done a lot of testing of and while there are a few
> > outstanding issues, almost everything seems to be working okay.
> >
> > Some known issues:
> > o e1000 pxe booting doesn't seem to work
> > o gPXE does not like the slirp tftp server
> > o SeaBIOS doesn't support CPU hotplug (not an issue for upstream qemu)
> >
> > I've renamed the old pcbios to pcbios.bin.  If you suspect a bug in
> > SeaBIOS, you can use "-bios pcbios.bin" to try with the old BIOS in an
> > effort to debug.
> >
> > I want to thank everyone who helped make this all happen.  It was a
> > big effort and I think it's going to be a really nice feature for the
> > 0.12.0 release!
> >
> 
> -kernel (w/ Linux) breaks.
> 
>From you mail I don't understand if it works with Bochs BIOS. Does it?

> 
> With SeaBIOS:
> 
> EAX=00001000 EBX=00000000 ECX=00000000 EDX=00000000
> ESI=00000000 EDI=00000000 EBP=00000000 ESP=00007bae
> EIP=00000025 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
> ES =1000 00010000 0000ffff 00009300
> CS =c900 000c9000 0000ffff 00009b0f
> SS =1000 00010000 0000ffff 00009300
> DS =0000 00000000 0000ffff 00009300
> FS =0000 00000000 0000ffff 00009300
> GS =0000 00000000 0000ffff 00009300
> LDT=0000 00000000 0000ffff 00008200
> TR =0000 00000000 0000ffff 00008b00
> GDT=     000fcc00 00000037
> IDT=     00000000 000003ff
> CR0=00000010 CR2=00000000 CR3=00000000 CR4=00000000
> DR0=00000000 DR1=00000000 DR2=00000000 DR3=00000000
> DR6=ffff0ff0 DR7=00000400
> CCS=00000000 CCD=00000000 CCO=EFLAGS 
> ----------------
> IN:
> 0x00000000000c9025:  mov    %ax,%ds
> 0x00000000000c9027:  mov    $0x1000,%ax
> 0x00000000000c902a:  mov    %ax,%fs
> 0x00000000000c902c:  mov    $0xc1e0,%ax
> 0x00000000000c902f:  mov    %ax,%gs
> 0x00000000000c9031:  mov    $0x0,%eax
> 0x00000000000c9037:  mov    $0x0,%ecx
> 0x00000000000c903d:  mov    $0x0,%edx
> 0x00000000000c9043:  mov    $0x0,%ebx
> 0x00000000000c9049:  mov    $0xfff0,%esp
> 0x00000000000c904f:  mov    $0x0,%ebp
> 0x00000000000c9055:  mov    $0x0,%esi
> 0x00000000000c905b:  mov    $0x0,%edi
> 0x00000000000c9061:  ljmp   $0x1020,$0x0
> 
> EAX=00000000 EBX=00000000 ECX=00000000 EDX=00000000
> ESI=00000000 EDI=00000000 EBP=00000000 ESP=0000fff0
> EIP=00000000 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
> ES =1000 00010000 0000ffff 00009300
> CS =1020 00010200 0000ffff 00009b0f
> SS =1000 00010000 0000ffff 00009300
> DS =1000 00010000 0000ffff 00009300
> FS =1000 00010000 0000ffff 00009300
> GS =c1e0 000c1e00 0000ffff 00009300
> LDT=0000 00000000 0000ffff 00008200
> TR =0000 00000000 0000ffff 00008b00
> GDT=     000fcc00 00000037
> IDT=     00000000 000003ff
> CR0=00000010 CR2=00000000 CR3=00000000 CR4=00000000
> DR0=00000000 DR1=00000000 DR2=00000000 DR3=00000000
> DR6=ffff0ff0 DR7=00000400
> CCS=00000000 CCD=00000000 CCO=EFLAGS 
> ----------------
> IN:
> 0x0000000000010200:  add    %al,(%bx,%si)
> 
> ############################################
> ############################################
> ############################################
> 
> With BochBIOS:
> 
> EAX=00001000 EBX=00008e10 ECX=0009e080 EDX=00000000
> ESI=000e0000 EDI=0000fdba EBP=0000fff2 ESP=0000fff8
> EIP=00000025 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
> ES =1000 00010000 0000ffff 00009300
> CS =c900 000c9000 0000ffff 00009b0f
> SS =1000 00010000 0000ffff 00009300
> DS =0000 00000000 0000ffff 00009300
> FS =0000 00000000 0000ffff 00009300
> GS =0000 00000000 0000ffff 00009300
> LDT=0000 00000000 0000ffff 00008200
> TR =0000 00000000 0000ffff 00008b00
> GDT=     000fb867 00000030
> IDT=     00000000 000003ff
> CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000
> DR0=00000000 DR1=00000000 DR2=00000000 DR3=00000000
> DR6=ffff0ff0 DR7=00000400
> CCS=00000055 CCD=00000000 CCO=LOGICW 
> ----------------
> IN:
> 0x00000000000c9025:  mov    %ax,%ds
> 0x00000000000c9027:  mov    $0x1000,%ax
> 0x00000000000c902a:  mov    %ax,%fs
> 0x00000000000c902c:  mov    $0xa1d8,%ax
> 0x00000000000c902f:  mov    %ax,%gs
> 0x00000000000c9031:  mov    $0x0,%eax
> 0x00000000000c9037:  mov    $0x0,%ecx
> 0x00000000000c903d:  mov    $0x0,%edx
> 0x00000000000c9043:  mov    $0x0,%ebx
> 0x00000000000c9049:  mov    $0xfff0,%esp
> 0x00000000000c904f:  mov    $0x0,%ebp
> 0x00000000000c9055:  mov    $0x0,%esi
> 0x00000000000c905b:  mov    $0x0,%edi
> 0x00000000000c9061:  ljmp   $0x1020,$0x0
> 
> EAX=00000000 EBX=00000000 ECX=00000000 EDX=00000000
> ESI=00000000 EDI=00000000 EBP=00000000 ESP=0000fff0
> EIP=00000000 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
> ES =1000 00010000 0000ffff 00009300
> CS =1020 00010200 0000ffff 00009b0f
> SS =1000 00010000 0000ffff 00009300
> DS =1000 00010000 0000ffff 00009300
> FS =1000 00010000 0000ffff 00009300
> GS =a1d8 000a1d80 0000ffff 00009300
> LDT=0000 00000000 0000ffff 00008200
> TR =0000 00000000 0000ffff 00008b00
> GDT=     000fb867 00000030
> IDT=     00000000 000003ff
> CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000
> DR0=00000000 DR1=00000000 DR2=00000000 DR3=00000000
> DR6=ffff0ff0 DR7=00000400
> CCS=00000055 CCD=00000000 CCO=LOGICW 
> ----------------
> IN:
> 0x0000000000010200:  jmp    0x10264

--
                        Gleb.