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| author | Thomas Gleixner <tglx@linutronix.de> | 2011-11-06 12:26:18 +0100 |
|---|---|---|
| committer | Anders Roxell <anders.roxell@linaro.org> | 2015-05-08 22:33:13 +0200 |
| commit | 0e217001fa81d51ab2745011c7adc65b767a14b9 (patch) | |
| tree | 3dcc0aaf444940c7382ecc218bd7f6639126881e /arch/x86/kvm/x86.c | |
| parent | 3728d9000b77d26a62c3a63ac02fed05a5c02a55 (diff) | |
x86-kvm-require-const-tsc-for-rt.patch
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
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 a38dd816015b..13c8f5f144ef 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5772,6 +5772,13 @@ 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; |