Re: [Xen-devel] Re: [PATCH] ioemu-remote: ACPI S3 state wake up

[Jean Guyader <jean.guyader@xxxxxxxxxxxxx>]

I already tried to reduce the rw area, and just keep 0xe0 -> 0xef. But 
obviously it doesn't work the device model needs to write on this frame 
0xf1. I still don't figure out why.
Trolle Selander wrote:
> Don't leave the main rombios unprotected. I also added a comment to 
> explain the "magic numbers", since their meaning is perhaps not as 
> obvious as I thought, in particular now that we're no longer 
> blanket-protecting the entire firmware area anymore.
> / Trolle
>
> Signed-off-by: Trolle Selander <trolle.selander@xxxxxxxxxxxxx 
> <mailto:trolle.selander@xxxxxxxxxxxxx> 
> <mailto:trolle.selander@xxxxxxxxxxxxx>
> On Wed, Jul 23, 2008 at 7:02 PM, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx 
> <mailto:Ian.Jackson@xxxxxxxxxxxxx>> wrote:
>     Jean Guyader writes ("[PATCH] ioemu-remote: ACPI S3 state wake up"):
>      > ioemu-remote: The device model needs to write in the ACPI tables
>     when it
>      > wakes up from S3 state.
>
>     I've applied this but I have to say these magic numbers
>      > -        if (xc_hvm_set_mem_type(xc_handle, domid, mem_type,
>     0xc0, 0x40))
>      > +        if (xc_hvm_set_mem_type(xc_handle, domid, mem_type,
>     0xc0, 0x20))
>     are pretty unpleasant!  Are they directly derived from addresses
>     specified in ACPI ?  I haven't looked ...
>
>     Ian.
>
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--
Jean Guyader

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