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x86: Raise vsyscall priority on hotplug notifier chain
KVM need vsyscall_init() to initialize MSR_TSC_AUX before it read the value. Per Avi's suggestion, this patch raised vsyscall priority on hotplug notifier chain, to 30. CC: Ingo Molnar <mingo@elte.hu> CC: linux-kernel@vger.kernel.org Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
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@ -301,7 +301,8 @@ static int __init vsyscall_init(void)
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register_sysctl_table(kernel_root_table2);
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#endif
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on_each_cpu(cpu_vsyscall_init, NULL, 1);
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hotcpu_notifier(cpu_vsyscall_notifier, 0);
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/* notifier priority > KVM */
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hotcpu_notifier(cpu_vsyscall_notifier, 30);
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return 0;
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}
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