Re: [Xen-devel] [PATCH v2 18/30] xen/x86: setup PVHv2 Dom0 ACPI tables

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 26.10.16 at 19:14, <boris.ostrovsky@xxxxxxxxxx> wrote:
>>>>> I've initially used a back-listing approach. We can always change this 
>>>>> later 
>>>>> on.
>>>>>
>>>>> So I've ended up crafting a new MADT, XSDT and RSDP. Note that I'm not 
>>>>> crafting a new custom RSDT (and in fact I'm setting rsdt_physical_address 
>>>>> = 
>>>>> 0 in the RSDP together with revision = 2). This is all placed in RAM 
>>>>> stolen 
>>>>> from the guest memory map and marked as E820_ACPI, which means that the 
>>>>> new 
>>>>> RSDP no longer resides below 1MB, 
> 
> As I mentioned in the other thread I am not sure this would be in
> compliance with the ACPI spec.

While that's true, Roger had already pointed out that the normal
way of finding RSDPTR needs to be avoided anyway.

Jan

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