diff options
| author | Jeremy Fitzhardinge <[email protected]> | 2009-10-12 16:32:43 -0700 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2009-10-13 09:22:01 +0200 |
| commit | 71999d9862e667f1fd14f8fbfa0cce6d855bad3f (patch) | |
| tree | b228a66c29154a446dc3adaf6f0dae8ee4b908d3 /lib/string_helpers.c | |
| parent | d1705c558c95418378b11a0be963fe1b3e2fa381 (diff) | |
x86/paravirt: Use normal calling sequences for irq enable/disable
Bastian Blank reported a boot crash with stackprotector enabled,
and debugged it back to edx register corruption.
For historical reasons irq enable/disable/save/restore had special
calling sequences to make them more efficient. With the more
recent introduction of higher-level and more general optimisations
this is no longer necessary so we can just use the normal PVOP_
macros.
This fixes some residual bugs in the old implementations which left
edx liable to inadvertent clobbering. Also, fix some bugs in
__PVOP_VCALLEESAVE which were revealed by actual use.
Reported-by: Bastian Blank <[email protected]>
Signed-off-by: Jeremy Fitzhardinge <[email protected]>
Cc: Stable Kernel <[email protected]>
Cc: Xen-devel <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions