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authorZachary Amsden <zach@vmware.com>2007-02-13 07:26:21 -0500
committerAndi Kleen <andi@basil.nowhere.org>2007-02-13 07:26:21 -0500
commit8b15114434998a78aa50f8559d69c7a400cff267 (patch)
tree2385fd562d0f625baaf32e75dd7dbedc966e9635 /include/asm-i386/smp.h
parent9226d125d94c7e4964dd41cc5e9ca2ff84091d01 (diff)
[PATCH] i386: iOPL handling for paravirt guests
I found a clever way to make the extra IOPL switching invisible to non-paravirt compiles - since kernel_rpl is statically defined to be zero there, and only non-zero rpl kernel have a problem restoring IOPL, as popf does not restore IOPL flags unless run at CPL-0. Signed-off-by: Zachary Amsden <zach@vmware.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Andrew Morton <akpm@osdl.org>
Diffstat (limited to 'include/asm-i386/smp.h')
0 files changed, 0 insertions, 0 deletions