diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2011-11-06 12:26:18 +0100 |
|---|---|---|
| committer | Clark Williams <williams@redhat.com> | 2011-12-28 16:25:51 -0600 |
| commit | b7d610d0138182fa5d932f1f54726e058e13b789 (patch) | |
| tree | 8e1f936c82639088b43e27dce83b513f70a8b534 /arch/x86 | |
| parent | f454ca02bfc57e3ed4ba0f0262f88140518ece9d (diff) | |
x86-kvm-require-const-tsc-for-rt.patch
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86')
| -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 c38efd7b792e..340058a53b46 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5185,6 +5185,13 @@ 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; |