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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2018-03-05 19:25:52 +0300
committerIngo Molnar <mingo@kernel.org>2018-03-12 14:10:54 +0300
commitbe7825c19b4866ddc7b1431740b69ede2eeb93c1 (patch)
tree50745124ec8ec6087abc90df7a790ac68060c7d1 /arch/x86/include/asm/intel_pconfig.h
parentcb06d8e3d020c30fe10ae711c925a5319ab82c88 (diff)
downloadlinux-be7825c19b4866ddc7b1431740b69ede2eeb93c1.tar.xz
x86/pconfig: Detect PCONFIG targets
Intel PCONFIG targets are enumerated via new CPUID leaf 0x1b. This patch detects all supported targets of PCONFIG and implements helper to check if the target is supported. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Kai Huang <kai.huang@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20180305162610.37510-5-kirill.shutemov@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/intel_pconfig.h')
-rw-r--r--arch/x86/include/asm/intel_pconfig.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/x86/include/asm/intel_pconfig.h b/arch/x86/include/asm/intel_pconfig.h
new file mode 100644
index 000000000000..fb7a37c3798b
--- /dev/null
+++ b/arch/x86/include/asm/intel_pconfig.h
@@ -0,0 +1,15 @@
+#ifndef _ASM_X86_INTEL_PCONFIG_H
+#define _ASM_X86_INTEL_PCONFIG_H
+
+#include <asm/asm.h>
+#include <asm/processor.h>
+
+enum pconfig_target {
+ INVALID_TARGET = 0,
+ MKTME_TARGET = 1,
+ PCONFIG_TARGET_NR
+};
+
+int pconfig_target_supported(enum pconfig_target target);
+
+#endif /* _ASM_X86_INTEL_PCONFIG_H */