diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2011-11-06 12:26:18 +0100 |
|---|---|---|
| committer | Clark Williams <williams@redhat.com> | 2012-03-06 10:18:02 -0600 |
| commit | 2563eac3c037538d42235f68b4d26a4bfedab82d (patch) | |
| tree | 33117052b4b0db927abcc38f3d84e1454bd23cc5 /arch | |
| parent | 66e8b05dbead4926e9fea7039e7c8564c462b806 (diff) | |
x86-kvm-require-const-tsc-for-rt.patch
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/x86.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 4c938da2ba00..9aac6d69bffa 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5184,6 +5184,13 @@ int kvm_arch_init(void *opaque) goto out; } +#ifdef CONFIG_PREEMPT_RT_FULL + if (!boot_cpu_has(X86_FEATURE_CONSTANT_TSC)) { + printk(KERN_ERR "RT requires X86_FEATURE_CONSTANT_TSC\n"); + return -EOPNOTSUPP; + } +#endif + r = kvm_mmu_module_init(); if (r) goto out; |