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x86/microcode: Add a parameter to microcode_check() to store CPU capabilities

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Add a parameter to store CPU capabilities before performing a microcode
update so that CPU capabilities can be compared before and after update.

  [ bp: Massage. ]

Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230109153555.4986-2-ashok.raj@intel.com
This commit is contained in:
Ashok Raj
2023-01-09 07:35:50 -08:00
committed by Borislav Petkov (AMD)
parent 59047d942b
commit ab31c74455
3 changed files with 16 additions and 10 deletions
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arch/x86/include/asm/processor.h
+1 -1
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@@ -697,7 +697,7 @@ bool xen_set_default_idle(void);
#endif
void __noreturn stop_this_cpu(void *dummy);
void microcode_check(void);
void microcode_check(struct cpuinfo_x86 *prev_info);
enum l1tf_mitigations {
L1TF_MITIGATION_OFF,