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[Qemu-devel] Re: [Bochs-developers] [PATCH v5 1/5] Add S3 state to DSDT.
[Qemu-devel] Re: [Bochs-developers] [PATCH v5 1/5] Add S3 state to DSDT. Handle resume event in the BIOS.
Sun, 7 Dec 2008 11:20:31 +0200
On Sat, Dec 06, 2008 at 09:57:38PM -0500, Kevin O'Connor wrote:
> Hi Gleb,
> On Thu, Nov 27, 2008 at 01:02:25PM +0200, Gleb Natapov wrote:
> > @@ -10375,6 +10420,12 @@ normal_post:
> > mov ds, ax
> > mov ss, ax
> > + ;; Save shutdown status
> > + mov 0x04b0, bl
> > +
> > + cmp bl, #0xfe
> > + jz s3_post
> > +
> What sets 40:b0 to 0xfe on a resume?
> Also, wouldn't this corrupt memory used by the stack (the stack gets
> set to 0xfffe, and s3_post has call insns in it)?
Oh. I thought it was set to be at the top of the first page, but it has
one extra 'f' :( We should change it to be 0xffe instead.