Peter Zijlstra c779bc1a90 x86/bugs: Optimize SPEC_CTRL MSR writes ... When changing SPEC_CTRL for user control, the WRMSR can be delayed until return-to-user when KERNEL_IBRS has been enabled. This avoids an MSR write during context switch. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Borislav Petkov <bp@suse.de>		2022-06-27 10:33:59 +02:00
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asm	x86/bugs: Optimize SPEC_CTRL MSR writes	2022-06-27 10:33:59 +02:00
uapi/asm	S390:	2022-05-26 14:20:14 -07:00