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RE: [Xen-devel] [PATCH]HVM E820 Table cleanup
| To: | "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>, "Wang, Winston L" <winston.l.wang@xxxxxxxxx>, "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>, <Christian.Limpach@xxxxxxxxxxxx> |
|---|---|
| Subject: | RE: [Xen-devel] [PATCH]HVM E820 Table cleanup |
| From: | "Li, Xin B" <xin.b.li@xxxxxxxxx> |
| Date: | Wed, 18 Oct 2006 16:53:00 +0800 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Wed, 18 Oct 2006 01:53:39 -0700 |
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| Thread-index: | AcZJ+X/aibN5jDuIR5qaQWxIPo6lRgAAB3DgGcLc9lABXN7R8AD6IxmgAAZ8ITANKTdBwAAApCCwAEQgH2cAl8q5UA== |
| Thread-topic: | [Xen-devel] [PATCH]HVM E820 Table cleanup |
>> We found E820 table miss report the ACPI NVS/Data information which >> trigger the Windows HCT test complain, attached please review for the >> cleanup patch. >> >> Signed-off-by: Xin Li <xin.b.li@xxxxxxxxx> >> Signed-off-by: Winston Wang <winston.l.wang@xxxxxxxxx> > >Apart from adding a page-size ACPI region in low memory, this patch >*removes* thirteen pages from the top of memory. Was that >region just bogus? > Yes, it's bogus :-( >The hvmloader code which copies the ACPI tables only checks >that the tables >will fit into 0xEA000-0xEFFFF. Shouldn't e820 declare a region >of that size, >therefore (i.e., 0x50000, not 0x10000)? > According to ACPI spec, OS may use e820 ACPI_DATA region as RAM after OS boots up (but acturally Linux doesn't use it). But for memory ACPI tables reside, OS can not use like that. -Xin _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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