Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes

Avi Kivity
2011-07-25T13:31:33Z

On 07/25/2011 04:28 PM, Avi Kivity wrote:
> On 07/25/2011 04:17 PM, Gleb Natapov wrote:
>> On Mon, Jul 25, 2011 at 04:14:45PM +0300, Avi Kivity wrote:
>> > On 07/25/2011 04:07 PM, Anthony Liguori wrote:
>> > >On 07/20/2011 11:50 AM, Avi Kivity wrote:
>> > >>The current implementation of PAM and the PCI holes is broken in
>> several
>> > >>ways:
>> > >>
>> > >> - PCI BARs are not restricted to the PCI hole (a BAR may hide
>> memory)
>> > >
>> > >Technically, a BAR can be mapped to any non-RAM memory location.
>> >
>> > I understood TOM (Top Of Memory) to be fixed - can't find a register
>> > for it - but maybe I misread the spec.
>> >
>> PIIX3 spec:
>>
>> 2.2.11. TOM—TOP OF MEMORY REGISTER (Function 0)
>> Address Offset: 69h
>> Default Value: 02h
>> Attribute: Read/Write
>>
>
> What's it doing in PIIX3? Is it the same TOM?
>

That's the ISA TOM (15MB hole and friends).

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error compiling committee.c: too many arguments to function