Re: [Xen-devel] [PATCH]Fix the bug of guest os installationfailure and win2k boot failure

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 17/3/08 11:16, "Cui, Dexuan" <dexuan.cui@xxxxxxxxx> wrote:

>> I think you misunderstand. The shadow emulator *never* emulates I/O
>> port accesses or exception deliveries. Those callback functions are
>> simply not implemented and are left as NULL.
> Those callback functions -- what are they? -- do you mean the following?
> static struct x86_emulate_ops hvm_emulate_ops = {
>     ....
>     .read_io       = hvmemul_read_io,
>     .write_io      = hvmemul_write_io,
> ...
> };

Yes indeed. Also, crucially, .inject_hw_exception. Without that
x86_emulate() is unable to inject any exception into the guest, and will
instead return X86EMUL_UNHANDLEABLE.

 -- Keir



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel