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| author | Thomas Gleixner <tglx@linutronix.de> | 2011-11-06 11:26:18 (GMT) |
|---|---|---|
| committer | Emil Medve <Emilian.Medve@Freescale.com> | 2013-04-30 08:17:23 (GMT) |
| commit | 36d9a4a1e1ac725b2986f7ece0693fb1f694255e (patch) | |
| tree | 78398c725e48a2832029282de16f1406733465f7 /arch/x86/kvm/x86.c | |
| parent | 467a334a45ccbdd173c9d7c64323ccf1cb3848aa (diff) | |
| download | linux-fsl-qoriq-36d9a4a1e1ac725b2986f7ece0693fb1f694255e.tar.xz | |
x86-kvm-require-const-tsc-for-rt.patch
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -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 9a51121..fb485ba 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5238,6 +5238,13 @@ 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_free_percpu; |