diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/cpu/centaur_64.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/common_64.c | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/intel_64.c | 2 |
3 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/centaur_64.c b/arch/x86/kernel/cpu/centaur_64.c index 13526fd5cce..2026d2119cd 100644 --- a/arch/x86/kernel/cpu/centaur_64.c +++ b/arch/x86/kernel/cpu/centaur_64.c @@ -10,6 +10,8 @@ static void __cpuinit early_init_centaur(struct cpuinfo_x86 *c) { if (c->x86 == 0x6 && c->x86_model >= 0xf) set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC); + + set_cpu_cap(c, X86_FEATURE_SYSENTER32); } static void __cpuinit init_centaur(struct cpuinfo_x86 *c) diff --git a/arch/x86/kernel/cpu/common_64.c b/arch/x86/kernel/cpu/common_64.c index 75185023529..36537ab9e56 100644 --- a/arch/x86/kernel/cpu/common_64.c +++ b/arch/x86/kernel/cpu/common_64.c @@ -314,6 +314,9 @@ static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c) if (c->extended_cpuid_level >= 0x80000007) c->x86_power = cpuid_edx(0x80000007); + /* Assume all 64-bit CPUs support 32-bit syscall */ + set_cpu_cap(c, X86_FEATURE_SYSCALL32); + if (c->x86_vendor != X86_VENDOR_UNKNOWN && cpu_devs[c->x86_vendor]->c_early_init) cpu_devs[c->x86_vendor]->c_early_init(c); diff --git a/arch/x86/kernel/cpu/intel_64.c b/arch/x86/kernel/cpu/intel_64.c index fcb1cc9d75c..02f773399e3 100644 --- a/arch/x86/kernel/cpu/intel_64.c +++ b/arch/x86/kernel/cpu/intel_64.c @@ -12,6 +12,8 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c) if ((c->x86 == 0xf && c->x86_model >= 0x03) || (c->x86 == 0x6 && c->x86_model >= 0x0e)) set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC); + + set_cpu_cap(c, X86_FEATURE_SYSENTER32); } /* |