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authorThomas Gleixner <tglx@linutronix.de>2020-02-25 23:33:25 +0100
committerThomas Gleixner <tglx@linutronix.de>2020-06-11 15:14:58 +0200
commit6271fef00b3489690e52ce95edbc378357513547 (patch)
treedafbe2b0d1b80557211c6f220390646ba9974763 /arch/x86/xen
parent9cce81cff748ef0e79b41c6e37d7137267f1212f (diff)
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x86/entry: Convert NMI to IDTENTRY_NMI
Convert #NMI to IDTENTRY_NMI: - Implement the C entry point with DEFINE_IDTENTRY_NMI - Fixup the XEN/PV code - Remove the old prototypes No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Andy Lutomirski <luto@kernel.org> Link: https://lkml.kernel.org/r/20200505135314.609932306@linutronix.de
Diffstat (limited to 'arch/x86/xen')
-rw-r--r--arch/x86/xen/enlighten_pv.c7
-rw-r--r--arch/x86/xen/xen-asm_64.S2
2 files changed, 7 insertions, 2 deletions
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 267583f9b207..0d6c2789e676 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -609,13 +609,18 @@ struct trap_array_entry {
.xen = xen_asm_##func, \
.ist_okay = ist_ok }
+#define TRAP_ENTRY_REDIR(func, xenfunc, ist_ok) { \
+ .orig = asm_##func, \
+ .xen = xen_asm_##xenfunc, \
+ .ist_okay = ist_ok }
+
static struct trap_array_entry trap_array[] = {
{ debug, xen_xendebug, true },
{ double_fault, xen_double_fault, true },
#ifdef CONFIG_X86_MCE
TRAP_ENTRY(exc_machine_check, true ),
#endif
- { nmi, xen_xennmi, true },
+ TRAP_ENTRY_REDIR(exc_nmi, exc_xennmi, true ),
TRAP_ENTRY(exc_int3, false ),
TRAP_ENTRY(exc_overflow, false ),
#ifdef CONFIG_IA32_EMULATION
diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S
index 617ef3f98160..04fa01b096ee 100644
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -32,7 +32,7 @@ xen_pv_trap asm_exc_divide_error
xen_pv_trap debug
xen_pv_trap xendebug
xen_pv_trap asm_exc_int3
-xen_pv_trap xennmi
+xen_pv_trap asm_exc_xennmi
xen_pv_trap asm_exc_overflow
xen_pv_trap asm_exc_bounds
xen_pv_trap asm_exc_invalid_op