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| author | Glauber de Oliveira Costa <gcosta@redhat.com> | 2008-01-30 13:31:03 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:31:03 +0100 |
| commit | 4e87173eacfd0d798aeeba14026893797826bc93 (patch) | |
| tree | 14a47677f3cc7074a5b190e159873b925c8deb77 /arch/x86/kernel/vsyscall_64.c | |
| parent | x86: allow sched clock to be overridden by paravirt (diff) | |
| download | linux-4e87173eacfd0d798aeeba14026893797826bc93.tar.xz linux-4e87173eacfd0d798aeeba14026893797826bc93.zip | |
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>
Diffstat (limited to 'arch/x86/kernel/vsyscall_64.c')
0 files changed, 0 insertions, 0 deletions