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[Xen-devel] Re: Xen 3.2 and Big Real Mode support?

On Wed, 23 Jan 2008 14:35:44 +0000
Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> wrote:

> If you pull latest xen-unstable (eventually-to-be-3.3) then vmxassist is
> disabled by default, and a few more instructions are correctly emulated.

Thanks for your help. So I tried to install opensuse from
openSUSE-10.3-GM-x86_64-mini.iso on my Intel Xeon and it seems that at
least one instruction is not emulated in real-mode. I'm working on the


(XEN) HVM1: HVM Loader
(XEN) HVM1: Detected Xen v3.3-unstable
(XEN) HVM1: Writing SMBIOS tables ...
(XEN) HVM1: Loading ROMBIOS ...
(XEN) HVM1: 9004 bytes of ROMBIOS high-memory extensions:
(XEN) HVM1:   Relocating to 0x3fff9c00-0x3fffbf2c ... done
(XEN) irq.c:236: Dom1 PCI link 0 changed 0 -> 5
(XEN) HVM1: PCI-ISA link 0 routed to IRQ5
(XEN) irq.c:236: Dom1 PCI link 1 changed 0 -> 10
(XEN) HVM1: PCI-ISA link 1 routed to IRQ10
(XEN) irq.c:236: Dom1 PCI link 2 changed 0 -> 11
(XEN) HVM1: PCI-ISA link 2 routed to IRQ11
(XEN) irq.c:236: Dom1 PCI link 3 changed 0 -> 5
(XEN) HVM1: PCI-ISA link 3 routed to IRQ5
(XEN) HVM1: pci dev 01:2 INTA->IRQ10
(XEN) HVM1: pci dev 03:0 INTA->IRQ5
(XEN) HVM1: pci dev 04:0 INTA->IRQ5
(XEN) HVM1: pci dev 02:0 bar 10 size 02000000: f0000008
(XEN) HVM1: pci dev 03:0 bar 14 size 01000000: f2000008
(XEN) HVM1: pci dev 02:0 bar 14 size 00001000: f3000000
(XEN) HVM1: pci dev 03:0 bar 10 size 00000100: 0000c001
(XEN) HVM1: pci dev 04:0 bar 10 size 00000100: 0000c101
(XEN) HVM1: pci dev 04:0 bar 14 size 00000100: f3001000
(XEN) HVM1: pci dev 01:1 bar 20 size 00000010: 0000c201
(XEN) HVM1: Creating MP tables ...
(XEN) HVM1: Loading Cirrus VGABIOS ...
(XEN) HVM1: Loading ACPI ...
(XEN) HVM1: BIOS map:
(XEN) HVM1:  c0000-c7fff: VGA BIOS
(XEN) HVM1:  e9000-e9143: SMBIOS tables
(XEN) HVM1:  ea000-eb1df: ACPI tables
(XEN) HVM1:  f0000-fffff: Main BIOS
(XEN) HVM1: Invoking ROMBIOS ...
(XEN) HVM1:  rombios.c,v 1.138 2005/05/07 15:55:26 vruppert Exp $
(XEN) HVM1: VGABios $Id: vgabios.c,v 1.61 2005/05/24 16:50:50 vruppert Exp $
(XEN) HVM1: HVMAssist BIOS, 1 cpu, $Revision: 1.138 $ $Date: 2005/05/07 
15:55:26 $
(XEN) HVM1: ata0-0: PCHS=16383/16/63 translation=lba LCHS=1024/255/63
(XEN) HVM1: ata0 master: QEMU HARDDISK ATA-7 Hard-Disk (10240 MBytes)
(XEN) HVM1: ata0  slave: Unknown device
(XEN) HVM1: ata1 master: QEMU CD-ROM ATAPI-4 CD-Rom/DVD-Rom
(XEN) HVM1: ata1  slave: Unknown device
(XEN) HVM1: Press F10 to select boot device.
(XEN) HVM1: Booting from CD-Rom...
(XEN) realmode.c:545:d1 Failed to emulate insn.
(XEN) realmode.c:599:d1 Real-mode emulation failed @ 4004:0000b071: 0f 17 0f 01 
17 0f
(XEN) domain_crash_sync called from realmode.c:600
(XEN) Domain 1 (vcpu#0) crashed on cpu#6:
(XEN) ----[ Xen-3.3-unstable  x86_64  debug=y  Not tainted ]----
(XEN) CPU:    6
(XEN) RIP:    0028:[<000000000000b071>]
(XEN) RFLAGS: 0000000000000017   CONTEXT: hvm
(XEN) rax: 0000000000004d0b   rbx: 0000000000800000   rcx: 0000000000004f00
(XEN) rdx: 00000000000013ca   rsi: 0000000000055e1c   rdi: 0000000000055e1d
(XEN) rbp: 000000000000200b   rsp: 00000000ffff007a   r8:  0000000000000000
(XEN) r9:  0000000000000000   r10: 0000000000000000   r11: 0000000000000000
(XEN) r12: 0000000000000000   r13: 0000000000000000   r14: 0000000000000000
(XEN) r15: 0000000000000000   cr0: 0000000000000010   cr4: 0000000000000000
(XEN) cr3: 0000000000000000   cr2: 0000000000000000
(XEN) ds: 0020   es: 0020   fs: 0020   gs: 0020   ss: 0020   cs: 0028

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