| commit | 4e87173eacfd0d798aeeba14026893797826bc93 | |
| author | Glauber de Oliveira Costa <gcosta@redhat.com> | |
| Wed, 30 Jan 2008 12:31:03 +0000 (30 13:31 +0100) | ||
| committer | Ingo Molnar <mingo@elte.hu> | |
| Wed, 30 Jan 2008 12:31:03 +0000 (30 13:31 +0100) | ||
| tree | 14a47677f3cc7074a5b190e159873b925c8deb77 | treesnapshot (tar.gz zip) |
| parent | 16e2011be67b8625c1c600f9742c2279be3c0c68 | commitdiff |
x86: split get_cycles_sync
This patch splits get_cycles_sync() into __get_cycles_sync(),
and the rdtscll part. Paravirt guests cannot issue rdtscl directly,
as it involves a function call in vdso area.
So, using the __get_cycles_sync() base, we introduce vget_cycles_sync,
which then calls the native version of rdtscll. Ideally, however, a guest
should define its own clocksource, together with a vread function
Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This patch splits get_cycles_sync() into __get_cycles_sync(),
and the rdtscll part. Paravirt guests cannot issue rdtscl directly,
as it involves a function call in vdso area.
So, using the __get_cycles_sync() base, we introduce vget_cycles_sync,
which then calls the native version of rdtscll. Ideally, however, a guest
should define its own clocksource, together with a vread function
Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| arch/x86/kernel/tsc_64.c | diffblobblamehistory | |
| include/asm-x86/tsc.h | diffblobblamehistory |