diff options
| -rw-r--r-- | arch/x86/boot/compressed/ident_map_64.c | 5 | ||||
| -rw-r--r-- | arch/x86/boot/compressed/idt_64.c | 1 | ||||
| -rw-r--r-- | arch/x86/boot/compressed/idt_handlers_64.S | 1 | ||||
| -rw-r--r-- | arch/x86/boot/compressed/misc.h | 1 | ||||
| -rw-r--r-- | arch/x86/boot/string.c | 2 |
5 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/boot/compressed/ident_map_64.c b/arch/x86/boot/compressed/ident_map_64.c index 473ba59b82a8..d040080d7edb 100644 --- a/arch/x86/boot/compressed/ident_map_64.c +++ b/arch/x86/boot/compressed/ident_map_64.c @@ -386,3 +386,8 @@ void do_boot_page_fault(struct pt_regs *regs, unsigned long error_code) */ kernel_add_identity_map(address, end); } + +void do_boot_nmi_trap(struct pt_regs *regs, unsigned long error_code) +{ + /* Empty handler to ignore NMI during early boot */ +} diff --git a/arch/x86/boot/compressed/idt_64.c b/arch/x86/boot/compressed/idt_64.c index 3cdf94b41456..d100284bbef4 100644 --- a/arch/x86/boot/compressed/idt_64.c +++ b/arch/x86/boot/compressed/idt_64.c @@ -61,6 +61,7 @@ void load_stage2_idt(void) boot_idt_desc.address = (unsigned long)boot_idt; set_idt_entry(X86_TRAP_PF, boot_page_fault); + set_idt_entry(X86_TRAP_NMI, boot_nmi_trap); #ifdef CONFIG_AMD_MEM_ENCRYPT /* diff --git a/arch/x86/boot/compressed/idt_handlers_64.S b/arch/x86/boot/compressed/idt_handlers_64.S index 22890e199f5b..4d03c8562f63 100644 --- a/arch/x86/boot/compressed/idt_handlers_64.S +++ b/arch/x86/boot/compressed/idt_handlers_64.S @@ -70,6 +70,7 @@ SYM_FUNC_END(\name) .code64 EXCEPTION_HANDLER boot_page_fault do_boot_page_fault error_code=1 +EXCEPTION_HANDLER boot_nmi_trap do_boot_nmi_trap error_code=0 #ifdef CONFIG_AMD_MEM_ENCRYPT EXCEPTION_HANDLER boot_stage1_vc do_vc_no_ghcb error_code=1 diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h index c0d502bd8716..bc2f0f17fb90 100644 --- a/arch/x86/boot/compressed/misc.h +++ b/arch/x86/boot/compressed/misc.h @@ -196,6 +196,7 @@ static inline void cleanup_exception_handling(void) { } /* IDT Entry Points */ void boot_page_fault(void); +void boot_nmi_trap(void); void boot_stage1_vc(void); void boot_stage2_vc(void); diff --git a/arch/x86/boot/string.c b/arch/x86/boot/string.c index 1c8541ae3b3a..c23f3b9c84fe 100644 --- a/arch/x86/boot/string.c +++ b/arch/x86/boot/string.c @@ -49,7 +49,7 @@ int strcmp(const char *str1, const char *str2) { const unsigned char *s1 = (const unsigned char *)str1; const unsigned char *s2 = (const unsigned char *)str2; - int delta = 0; + int delta; while (*s1 || *s2) { delta = *s1 - *s2; |