Thomas Gleixner cba08c5dc6 x86/fpu: Make kernel FPU protection RT friendly ... Non RT kernels need to protect FPU against preemption and bottom half processing. This is achieved by disabling bottom halfs via local_bh_disable() which implictly disables preemption. On RT kernels this protection mechanism is not sufficient because local_bh_disable() does not disable preemption. It serializes bottom half related processing via a CPU local lock. As bottom halfs are running always in thread context on RT kernels disabling preemption is the proper choice as it implicitly prevents bottom half processing. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20201027101349.588965083@linutronix.de		2020-11-11 14:35:16 +01:00
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asm	x86/fpu: Make kernel FPU protection RT friendly	2020-11-11 14:35:16 +01:00
uapi/asm	x86/kvm: Reserve KVM_FEATURE_MSI_EXT_DEST_ID	2020-10-28 13:52:05 -04:00