| commit | e2a81baf6604a2e08e10c7405b0349106f77c8af | [log] [tgz] |
|---|---|---|
| author | Jeremy Fitzhardinge <jeremy@goop.org> | Mon Mar 17 16:37:17 2008 -0700 |
| committer | Ingo Molnar <mingo@elte.hu> | Thu Apr 24 23:57:31 2008 +0200 |
| tree | 3eaf386316be1f499d92fae213493ec3d6b5b576 | |
| parent | aa380c82b83252754a8c11bfc92359bd87cbf710 [diff] |
xen: support sysenter/sysexit if hypervisor does 64-bit Xen supports sysenter for 32-bit guests, so support its use. (sysenter is faster than int $0x80 in 32-on-64.) sysexit is still not supported, so we fake it up using iret. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>