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Diffstat (limited to 'arch/x86/include/asm/processor.h')
-rw-r--r--arch/x86/include/asm/processor.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index ee8c6290c421..7aa9a9bd9d98 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -213,6 +213,24 @@ static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
: "memory");
}
+#define native_cpuid_reg(reg) \
+static inline unsigned int native_cpuid_##reg(unsigned int op) \
+{ \
+ unsigned int eax = op, ebx, ecx = 0, edx; \
+ \
+ native_cpuid(&eax, &ebx, &ecx, &edx); \
+ \
+ return reg; \
+}
+
+/*
+ * Native CPUID functions returning a single datum.
+ */
+native_cpuid_reg(eax)
+native_cpuid_reg(ebx)
+native_cpuid_reg(ecx)
+native_cpuid_reg(edx)
+
static inline void load_cr3(pgd_t *pgdir)
{
write_cr3(__pa(pgdir));
@@ -874,4 +892,17 @@ enum l1tf_mitigations {
extern enum l1tf_mitigations l1tf_mitigation;
+enum mds_mitigations {
+ MDS_MITIGATION_OFF,
+ MDS_MITIGATION_FULL,
+ MDS_MITIGATION_VMWERV,
+};
+
+enum taa_mitigations {
+ TAA_MITIGATION_OFF,
+ TAA_MITIGATION_UCODE_NEEDED,
+ TAA_MITIGATION_VERW,
+ TAA_MITIGATION_TSX_DISABLED,
+};
+
#endif /* _ASM_X86_PROCESSOR_H */