Messages in this thread | | | Date | Thu, 21 Feb 2008 15:26:56 -0800 | From | "H. Peter Anvin" <> | Subject | Re: 2.6.25-rc1 xen pvops regression |
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Jeremy Fitzhardinge wrote: > > It seems to me that those pages are being handed out as heap pages by > the early allocator. In the Xen case this is OK because there's nothing > magic about them. But if real hardware doesn't reserve these pages in > the E820 map, then they could end up being used as regular memory by > mistake, which is an issue. >
No, they couldn't.
On real hardware they'll be memory types 0 or 2, depending on whether or not they're marked reserved.
Available RAM is type 1.
-hpa
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