[RESEND PATCH 6/6] x86/traps: remove unused NMI entry exc_nmi_noist()

Xin Li
2022-11-10T06:40:00Z

After the introduction of kvm_vmx_reinject_irq(), exc_nmi_noist()
is no longer needed, thus remove it.

Signed-off-by: Xin Li <xin3.li@intel.com>
---
arch/x86/include/asm/idtentry.h | 15 ---------------
arch/x86/kernel/nmi.c | 10 ----------
2 files changed, 25 deletions(-)

diff --git a/arch/x86/include/asm/idtentry.h b/arch/x86/include/asm/idtentry.h
index 72184b0b2219..da28ac17c57a 100644
--- a/arch/x86/include/asm/idtentry.h
+++ b/arch/x86/include/asm/idtentry.h
@@ -581,21 +581,6 @@ DECLARE_IDTENTRY_RAW(X86_TRAP_MC, xenpv_exc_machine_check);
#endif

/* NMI */
-
-#if defined(CONFIG_X86_64) && IS_ENABLED(CONFIG_KVM_INTEL)
-/*
- * Special NOIST entry point for VMX which invokes this on the kernel
- * stack. asm_exc_nmi() requires an IST to work correctly vs. the NMI
- * 'executing' marker.
- *
- * On 32bit this just uses the regular NMI entry point because 32-bit does
- * not have ISTs.
- */
-DECLARE_IDTENTRY(X86_TRAP_NMI, exc_nmi_noist);
-#else
-#define asm_exc_nmi_noist asm_exc_nmi
-#endif
-
DECLARE_IDTENTRY_NMI(X86_TRAP_NMI, exc_nmi);
#ifdef CONFIG_XEN_PV
DECLARE_IDTENTRY_RAW(X86_TRAP_NMI, xenpv_exc_nmi);
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
index cec0bfa3bc04..816bb59a4ba4 100644
--- a/arch/x86/kernel/nmi.c
+++ b/arch/x86/kernel/nmi.c
@@ -527,16 +527,6 @@ DEFINE_IDTENTRY_RAW(exc_nmi)
mds_user_clear_cpu_buffers();
}

-#if defined(CONFIG_X86_64) && IS_ENABLED(CONFIG_KVM_INTEL)
-DEFINE_IDTENTRY_RAW(exc_nmi_noist)
-{
- exc_nmi(regs);
-}
-#endif
-#if IS_MODULE(CONFIG_KVM_INTEL)
-EXPORT_SYMBOL_GPL(asm_exc_nmi_noist);
-#endif
-
void stop_nmi(void)
{
ignore_nmis++;
--
2.34.1