mesalab_git/zhangyang/uintr-linux-kernel.git - Repository for zhangyang/uintr-linux-kernel

Age	Commit message (Collapse)	Author
2019-10-01	x86: Use the correct SPDX License Identifier in headers	Nishad Kamdar
	Correct the SPDX License Identifier format in a couple of headers. Suggested-by: Joe Perches <[email protected]> Signed-off-by: Nishad Kamdar <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Sean Christopherson <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Uwe Kleine-König <[email protected]> Cc: Waiman Long <[email protected]> Cc: x86-ml <[email protected]> Link: https://lkml.kernel.org/r/697848ff866ade29e78e872525d7a3067642fd37.1555427420.git.nishadkamdar@gmail.com
2018-12-06	x86/speculation: Change misspelled STIPB to STIBP	Waiman Long
	STIBP stands for Single Thread Indirect Branch Predictors. The acronym, however, can be easily mis-spelled as STIPB. It is perhaps due to the presence of another related term - IBPB (Indirect Branch Predictor Barrier). Fix the mis-spelling in the code. Signed-off-by: Waiman Long <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Kosina <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: KarimAllah Ahmed <[email protected]> Cc: Konrad Rzeszutek Wilk <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Tim Chen <[email protected]> Cc: x86-ml <[email protected]> Link: https://lkml.kernel.org/r/[email protected]
2018-11-28	x86/speculation: Avoid __switch_to_xtra() calls	Thomas Gleixner
	The TIF_SPEC_IB bit does not need to be evaluated in the decision to invoke __switch_to_xtra() when: - CONFIG_SMP is disabled - The conditional STIPB mode is disabled The TIF_SPEC_IB bit still controls IBPB in both cases so the TIF work mask checks might invoke __switch_to_xtra() for nothing if TIF_SPEC_IB is the only set bit in the work masks. Optimize it out by masking the bit at compile time for CONFIG_SMP=n and at run time when the static key controlling the conditional STIBP mode is disabled. Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Ingo Molnar <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Jiri Kosina <[email protected]> Cc: Tom Lendacky <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Andrea Arcangeli <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Tim Chen <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Casey Schaufler <[email protected]> Cc: Asit Mallick <[email protected]> Cc: Arjan van de Ven <[email protected]> Cc: Jon Masters <[email protected]> Cc: Waiman Long <[email protected]> Cc: Greg KH <[email protected]> Cc: Dave Stewart <[email protected]> Cc: Kees Cook <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected]
2018-11-28	x86/process: Consolidate and simplify switch_to_xtra() code	Thomas Gleixner
	Move the conditional invocation of __switch_to_xtra() into an inline function so the logic can be shared between 32 and 64 bit. Remove the handthrough of the TSS pointer and retrieve the pointer directly in the bitmap handling function. Use this_cpu_ptr() instead of the per_cpu() indirection. This is a preparatory change so integration of conditional indirect branch speculation optimization happens only in one place. Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Ingo Molnar <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Jiri Kosina <[email protected]> Cc: Tom Lendacky <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Andrea Arcangeli <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Tim Chen <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Casey Schaufler <[email protected]> Cc: Asit Mallick <[email protected]> Cc: Arjan van de Ven <[email protected]> Cc: Jon Masters <[email protected]> Cc: Waiman Long <[email protected]> Cc: Greg KH <[email protected]> Cc: Dave Stewart <[email protected]> Cc: Kees Cook <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected]