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x86, microcode, AMD: Add a vendor-specific exit function

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This will be used to do cleanup work before the driver exits.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
This commit is contained in:
Borislav Petkov 2011-12-02 16:50:04 +01:00 committed by Borislav Petkov
parent dc47ce90c3
commit f72c1a5765
3 changed files with 11 additions and 0 deletions
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2
arch/x86/include/asm/microcode.h
View File

@ -48,6 +48,7 @@ static inline struct microcode_ops * __init init_intel_microcode(void)
#ifdef CONFIG_MICROCODE_AMD
extern struct microcode_ops * __init init_amd_microcode(void);
extern void __exit exit_amd_microcode(void);
static inline void get_ucode_data(void *to, const u8 *from, size_t n)
{
@ -59,6 +60,7 @@ static inline struct microcode_ops * __init init_amd_microcode(void)
{
return NULL;
}
static inline void __exit exit_amd_microcode(void) {}
#endif
#endif /* _ASM_X86_MICROCODE_H */

4
arch/x86/kernel/microcode_amd.c
View File

@ -353,3 +353,7 @@ struct microcode_ops * __init init_amd_microcode(void)
{
return &microcode_amd_ops;
}
void __exit exit_amd_microcode(void)
{
}

5
arch/x86/kernel/microcode_core.c
View File

@ -563,6 +563,8 @@ module_init(microcode_init);
static void __exit microcode_exit(void)
{
struct cpuinfo_x86 *c = &cpu_data(0);
microcode_dev_exit();
unregister_hotcpu_notifier(&mc_cpu_notifier);
@ -580,6 +582,9 @@ static void __exit microcode_exit(void)
microcode_ops = NULL;
if (c->x86_vendor == X86_VENDOR_AMD)
exit_amd_microcode();
pr_info("Microcode Update Driver: v" MICROCODE_VERSION " removed.\n");
}
module_exit(microcode_exit);