diff options
| author | Glauber de Oliveira Costa <gcosta@redhat.com> | 2008-02-15 17:52:48 -0200 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-04-27 11:53:22 +0300 |
| commit | 790c73f6289a204f858ffdcbe4a2b38e91657ec6 (patch) | |
| tree | 3d6b146538b11e45a713bb4fa1b44af4509ca27f /arch/x86/kernel/setup_64.c | |
| parent | 18068523d3a0b41fcee5b53cdb437a0ab4d65e4b (diff) | |
| download | linux-790c73f6289a204f858ffdcbe4a2b38e91657ec6.tar.gz linux-790c73f6289a204f858ffdcbe4a2b38e91657ec6.tar.bz2 linux-790c73f6289a204f858ffdcbe4a2b38e91657ec6.zip | |
x86: KVM guest: paravirtualized clocksource
This is the guest part of kvm clock implementation
It does not do tsc-only timing, as tsc can have deltas
between cpus, and it did not seem worthy to me to keep
adjusting them.
We do use it, however, for fine-grained adjustment.
Other than that, time comes from the host.
[randy dunlap: add missing include]
[randy dunlap: disallow on Voyager or Visual WS]
Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'arch/x86/kernel/setup_64.c')
| -rw-r--r-- | arch/x86/kernel/setup_64.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c index 60e64c8eee92..8a9213c023ef 100644 --- a/arch/x86/kernel/setup_64.c +++ b/arch/x86/kernel/setup_64.c @@ -42,6 +42,7 @@ #include <linux/ctype.h> #include <linux/uaccess.h> #include <linux/init_ohci1394_dma.h> +#include <linux/kvm_para.h> #include <asm/mtrr.h> #include <asm/uaccess.h> @@ -384,6 +385,10 @@ void __init setup_arch(char **cmdline_p) io_delay_init(); +#ifdef CONFIG_KVM_CLOCK + kvmclock_init(); +#endif + #ifdef CONFIG_SMP /* setup to use the early static init tables during kernel startup */ x86_cpu_to_apicid_early_ptr = (void *)x86_cpu_to_apicid_init; |