diff options
author | Suresh Siddha <suresh.b.siddha@intel.com> | 2008-07-29 13:29:19 -0400 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-07-30 13:49:24 -0400 |
commit | dc1e35c6e95e8923cf1d3510438b63c600fee1e2 (patch) | |
tree | 4348f51f1bfdd124efd6d16dcc552bd4a148fdfb /arch/x86/kernel/traps_64.c | |
parent | a648bf4632628c787abb0514277f2a231fca39ca (diff) |
x86, xsave: enable xsave/xrstor on cpus with xsave support
Enables xsave/xrstor by turning on cr4.osxsave on cpu's which have
the xsave support. For now, features that OS supports/enabled are
FP and SSE.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/traps_64.c')
-rw-r--r-- | arch/x86/kernel/traps_64.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c index 513caaca7115..3580a7938a2e 100644 --- a/arch/x86/kernel/traps_64.c +++ b/arch/x86/kernel/traps_64.c | |||
@@ -1173,10 +1173,6 @@ void __init trap_init(void) | |||
1173 | set_system_gate(IA32_SYSCALL_VECTOR, ia32_syscall); | 1173 | set_system_gate(IA32_SYSCALL_VECTOR, ia32_syscall); |
1174 | #endif | 1174 | #endif |
1175 | /* | 1175 | /* |
1176 | * initialize the per thread extended state: | ||
1177 | */ | ||
1178 | init_thread_xstate(); | ||
1179 | /* | ||
1180 | * Should be a barrier for any external CPU state: | 1176 | * Should be a barrier for any external CPU state: |
1181 | */ | 1177 | */ |
1182 | cpu_init(); | 1178 | cpu_init(); |