From 8c9f42f3cf3598e8bb612b3f81cd12632efd3ca4 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Wed, 5 Apr 2017 10:11:36 +0200
Subject: tco: do not generate an NMI

This behavior is not indicated in the datasheet and can confuse the OS.
The TCO can trap NMIs from SERR# or IOCHK# and convert them to SMIs; but
any other TCO event is either delivered as an SMI or completely disabled.

Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/acpi/tco.c | 2 --
 1 file changed, 2 deletions(-)

(limited to 'hw/acpi')

diff --git a/hw/acpi/tco.c b/hw/acpi/tco.c
index b4adac88cd..05b9d7ba36 100644
--- a/hw/acpi/tco.c
+++ b/hw/acpi/tco.c
@@ -75,8 +75,6 @@ static void tco_timer_expired(void *opaque)
 
     if (pm->smi_en & ICH9_PMIO_SMI_EN_TCO_EN) {
         ich9_generate_smi();
-    } else {
-        ich9_generate_nmi();
     }
     tr->tco.rld = tr->tco.tmr;
     tco_timer_reload(tr);
-- 
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