Commit 2f7fada2 authored Oct 04, 2016 by Andy Lutomirski Committed by Ingo Molnar Oct 07, 2016

x86/fpu: Remove the XFEATURE_MASK_EAGER/LAZY distinction

Now that lazy mode is gone, we don't need to distinguish which
xfeatures require eager mode.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Rik van Riel <riel@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: pbonzini@redhat.com
Link: http://lkml.kernel.org/r/1475627678-20788-4-git-send-email-riel@redhat.com

Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent ca6938a1

arch/x86/include/asm/fpu/xstate.h

+5 −9

Original line number	Diff line number	Diff line
		@@ -21,20 +21,16 @@
		/* Supervisor features */
		#define XFEATURE_MASK_SUPERVISOR (XFEATURE_MASK_PT)

		/* Supported features which support lazy state saving */
		#define XFEATURE_MASK_LAZY (XFEATURE_MASK_FP \| \
		/* All currently supported features */
		#define XCNTXT_MASK (XFEATURE_MASK_FP \| \
		XFEATURE_MASK_SSE \| \
		XFEATURE_MASK_YMM \| \
		XFEATURE_MASK_OPMASK \| \
		XFEATURE_MASK_ZMM_Hi256 \| \
		XFEATURE_MASK_Hi16_ZMM \| \
		XFEATURE_MASK_PKRU)

		/* Supported features which require eager state saving */
		#define XFEATURE_MASK_EAGER (XFEATURE_MASK_BNDREGS \| XFEATURE_MASK_BNDCSR)

		/* All currently supported features */
		#define XCNTXT_MASK (XFEATURE_MASK_LAZY \| XFEATURE_MASK_EAGER)
		XFEATURE_MASK_PKRU \| \
		XFEATURE_MASK_BNDREGS \| \
		XFEATURE_MASK_BNDCSR)

		#ifdef CONFIG_X86_64
		#define REX_PREFIX "0x48, "