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Diffstat (limited to 'arch/x86/include/asm/idtentry.h')
-rw-r--r--arch/x86/include/asm/idtentry.h25
1 files changed, 16 insertions, 9 deletions
diff --git a/arch/x86/include/asm/idtentry.h b/arch/x86/include/asm/idtentry.h
index 1345088e9902..7924f27f5c8b 100644
--- a/arch/x86/include/asm/idtentry.h
+++ b/arch/x86/include/asm/idtentry.h
@@ -5,6 +5,8 @@
/* Interrupts/Exceptions */
#include <asm/trapnr.h>
+#define IDT_ALIGN (8 * (1 + HAS_KERNEL_IBT))
+
#ifndef __ASSEMBLY__
#include <linux/entry-common.h>
#include <linux/hardirq.h>
@@ -480,7 +482,7 @@ __visible noinstr void func(struct pt_regs *regs, \
/*
* ASM code to emit the common vector entry stubs where each stub is
- * packed into 8 bytes.
+ * packed into IDT_ALIGN bytes.
*
* Note, that the 'pushq imm8' is emitted via '.byte 0x6a, vector' because
* GCC treats the local vector variable as unsigned int and would expand
@@ -492,33 +494,33 @@ __visible noinstr void func(struct pt_regs *regs, \
* point is to mask off the bits above bit 7 because the push is sign
* extending.
*/
- .align 8
+ .align IDT_ALIGN
SYM_CODE_START(irq_entries_start)
vector=FIRST_EXTERNAL_VECTOR
.rept NR_EXTERNAL_VECTORS
UNWIND_HINT_IRET_REGS
0 :
+ ENDBR
.byte 0x6a, vector
jmp asm_common_interrupt
- nop
- /* Ensure that the above is 8 bytes max */
- . = 0b + 8
+ /* Ensure that the above is IDT_ALIGN bytes max */
+ .fill 0b + IDT_ALIGN - ., 1, 0xcc
vector = vector+1
.endr
SYM_CODE_END(irq_entries_start)
#ifdef CONFIG_X86_LOCAL_APIC
- .align 8
+ .align IDT_ALIGN
SYM_CODE_START(spurious_entries_start)
vector=FIRST_SYSTEM_VECTOR
.rept NR_SYSTEM_VECTORS
UNWIND_HINT_IRET_REGS
0 :
+ ENDBR
.byte 0x6a, vector
jmp asm_spurious_interrupt
- nop
- /* Ensure that the above is 8 bytes max */
- . = 0b + 8
+ /* Ensure that the above is IDT_ALIGN bytes max */
+ .fill 0b + IDT_ALIGN - ., 1, 0xcc
vector = vector+1
.endr
SYM_CODE_END(spurious_entries_start)
@@ -615,6 +617,11 @@ DECLARE_IDTENTRY_DF(X86_TRAP_DF, exc_double_fault);
DECLARE_IDTENTRY_RAW_ERRORCODE(X86_TRAP_DF, xenpv_exc_double_fault);
#endif
+/* #CP */
+#ifdef CONFIG_X86_KERNEL_IBT
+DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_CP, exc_control_protection);
+#endif
+
/* #VC */
#ifdef CONFIG_AMD_MEM_ENCRYPT
DECLARE_IDTENTRY_VC(X86_TRAP_VC, exc_vmm_communication);