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| author | Jeremy Fitzhardinge | 2009-01-28 23:35:07 +0100 |
|---|---|---|
| committer | H. Peter Anvin | 2009-01-30 23:51:45 +0100 |
| commit | da5de7c22eb705be709a57e486e7475a6969b994 (patch) | |
| tree | 29b3655e38fea6bd6ef11437d2fea14b397c8b03 /block | |
| parent | x86/paravirt: implement PVOP_CALL macros for callee-save functions (diff) | |
| download | kernel-qcow2-linux-da5de7c22eb705be709a57e486e7475a6969b994.tar.gz kernel-qcow2-linux-da5de7c22eb705be709a57e486e7475a6969b994.tar.xz kernel-qcow2-linux-da5de7c22eb705be709a57e486e7475a6969b994.zip | |
x86/paravirt: use callee-saved convention for pte_val/make_pte/etc
Impact: Optimization
In the native case, pte_val, make_pte, etc are all just identity
functions, so there's no need to clobber a lot of registers over them.
(This changes the 32-bit callee-save calling convention to return both
EAX and EDX so functions can return 64-bit values.)
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions