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xen-devel
Re: [Xen-devel] [PATCH] FP fix for x86-64 xenlinux
On 6 Jun 2005, at 08:02, Nakajima, Jun wrote:
With this patch, # of testcase failures with LTP is < 5 (out of 800),
almost same results as the native x86-64 Linux. The other two patches
for LTP are coming soon; with these, all the testcases will pass
(except the ones that fail on the native x86-64 Linux).
Consider defining read/write_cr0 macros same as we do in arch/xen/i386.
We set them the same as native (i.e., real accesses to %cr0) and then
emulate in Xen. This will ensure that things like raid6 will work,
which save/restore %cr0 as part of their fpu save/restore code.
-- Keir
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