x86/reboot: Assert that IRQs are disabled when turning off virtualization
Assert that IRQs are disabled when turning off virtualization in an emergency. KVM enables hardware via on_each_cpu(), i.e. could re-enable hardware if a pending IPI were delivered after disabling virtualization. Remove a misleading comment from emergency_reboot_disable_virtualization() about "just" needing to guarantee the CPU is stable (see above). Reviewed-by: Kai Huang <kai.huang@intel.com> Link: https://lore.kernel.org/r/20230721201859.2307736-6-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
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baeb4de7
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