Right, this is better. An even better fix would be to clear CS.RPL
before the popf.
Regards,
Fabrice.
Samuel Thibault wrote:
Hi,
The patch that qemu applies to bochs bios is a bit bugged:
pci_pro_fail:
pop edi
pop esi
- sti
popf
stc
+ and dword ptr[esp+4],0xfffffffc ;; reset CS.RPL for kqemu
retf
The and operation clears carry... So that pci functions always leave
carry clear, and hence tell operating systems that they always work...
This should rather be:
pci_pro_fail:
pop edi
pop esi
- sti
popf
+ and dword ptr[esp+4],0xfffffffc ;; reset CS.RPL for kqemu
stc
retf
Samuel
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