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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-07-12 02:22:00 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-16 11:08:27 +0200 |
| commit | 6a52e4b1cddd90fbfde8fb67021657936ee74b07 (patch) | |
| tree | c876e1fafe89169f373f6b04739242b5d646fcf7 /kernel/rwsem.c | |
| parent | 71415c6a0877d5944d5dc3060f3b03513746158d (diff) | |
| download | blackbird-op-linux-6a52e4b1cddd90fbfde8fb67021657936ee74b07.tar.gz blackbird-op-linux-6a52e4b1cddd90fbfde8fb67021657936ee74b07.zip | |
x86_64: further cleanup of 32-bit compat syscall mechanisms
AMD only supports "syscall" from 32-bit compat usermode.
Intel and Centaur(?) only support "sysenter" from 32-bit compat usermode.
Set the X86 feature bits accordingly, and set up the vdso in
accordance with those bits. On the offchance we run on in a 64-bit
environment which supports neither syscall nor sysenter from 32-bit
mode, then fall back to the int $0x80 vdso.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'kernel/rwsem.c')
0 files changed, 0 insertions, 0 deletions
