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Re: [Xen-devel] [PATCH 2/2] hvmloader: PA range 0xfc000000-0xffffffff should be UC

>>> On 21.05.14 at 14:26, <Ian.Campbell@xxxxxxxxxxxxx> wrote:
> On Mon, 2014-05-19 at 14:13 +0100, Jan Beulich wrote:
>> Rather than leaving the range from PCI_MEM_END (0xfc000000) to 4G
>> uncovered, we should include this in the UC range created for the (low)
>> PCI range. Besides being more correct,
> OOI why is this more correct? What is in here, APIC registers and stuff
> I think? (that may have answered my question...)

Right - LAPIC, IO-APIC, HPET, ...


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