From: K. Y. Srinivasan Date: Thu, 10 Oct 2013 22:30:24 +0000 (-0700) Subject: x86, hyperv: Correctly guard the local APIC calibration code X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=90ab9d5510932e146a9443bf5a591f95d5b5ada8;p=linux-beck.git x86, hyperv: Correctly guard the local APIC calibration code The code that gets the local APIC timer frequency from the hypervisor rather depends on there being a local APIC. Signed-off-by: K. Y. Srinivasan Link: http://lkml.kernel.org/r/1381444224-3303-1-git-send-email-kys@microsoft.com Signed-off-by: H. Peter Anvin --- diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c index 0a490ca278e7..628ff50ab75f 100644 --- a/arch/x86/kernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -80,6 +80,7 @@ static void __init ms_hyperv_init_platform(void) printk(KERN_INFO "HyperV: features 0x%x, hints 0x%x\n", ms_hyperv.features, ms_hyperv.hints); +#ifdef CONFIG_X86_LOCAL_APIC if (ms_hyperv.features & HV_X64_MSR_APIC_FREQUENCY_AVAILABLE) { /* * Get the APIC frequency. @@ -99,6 +100,7 @@ static void __init ms_hyperv_init_platform(void) legacy_pic = &null_legacy_pic; } } +#endif if (ms_hyperv.features & HV_X64_MSR_TIME_REF_COUNT_AVAILABLE) clocksource_register_hz(&hyperv_cs, NSEC_PER_SEC/100);