[Qemu-devel] [7172] Fix non-ACPI Timer Interrupt Routing (Beth Kon)

[Qemu-devel] [7172] Fix non-ACPI Timer Interrupt Routing (Beth Kon)

[Anthony Liguori]

Revision: 7172
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=7172
Author:   aliguori
Date:     2009-04-17 21:09:14 +0000 (Fri, 17 Apr 2009)
Log Message:
-----------
Fix non-ACPI Timer Interrupt Routing (Beth Kon)

Replicate ACPI irq0->inti2 override in mp table for non-acpi case.

v1 -> v2 adds comment suggested by Ryan.

Signed-off-by: Beth Kon <eak@us.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

Modified Paths:
--------------
    branches/stable_0_10/pc-bios/bios-pq/series

Added Paths:
-----------
    branches/stable_0_10/pc-bios/bios-pq/0013_fix-non-acpi-timer-interrupt-routing.patch

Added: branches/stable_0_10/pc-bios/bios-pq/0013_fix-non-acpi-timer-interrupt-routing.patch
===================================================================
--- branches/stable_0_10/pc-bios/bios-pq/0013_fix-non-acpi-timer-interrupt-routing.patch	                        (rev 0)
+++ branches/stable_0_10/pc-bios/bios-pq/0013_fix-non-acpi-timer-interrupt-routing.patch	2009-04-17 21:09:14 UTC (rev 7172)
@@ -0,0 +1,38 @@
+Fix non-ACPI Timer Interrupt Routing (Beth Kon)
+
+Replicate ACPI irq0->inti2 override in mp table for non-acpi case.
+
+v1 -> v2 adds comment suggested by Ryan.
+
+Signed-off-by: Beth Kon <eak@us.ibm.com>
+Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
+
+diff --git a/bios/rombios32.c b/bios/rombios32.c
+index 7be4216..dc7b5f3 100644
+--- a/bios/rombios32.c
++++ b/bios/rombios32.c
+@@ -1168,6 +1168,12 @@ static void mptable_init(void)
+ 
+     /* irqs */
+     for(i = 0; i < 16; i++) {
++#ifdef BX_QEMU
++        /* One entry per ioapic input. Input 2 is covered by 
++           irq0->inti2 override (i == 0). irq 2 is unused */
++        if (i == 2)
++            continue;
++#endif        
+         putb(&q, 3); /* entry type = I/O interrupt */
+         putb(&q, 0); /* interrupt type = vectored interrupt */
+         putb(&q, 0); /* flags: po=0, el=0 */
+@@ -1175,7 +1181,11 @@ static void mptable_init(void)
+         putb(&q, 0); /* source bus ID = ISA */
+         putb(&q, i); /* source bus IRQ */
+         putb(&q, ioapic_id); /* dest I/O APIC ID */
++#ifdef BX_QEMU
++        putb(&q, i == 0 ? 2 : i); /* dest I/O APIC interrupt in */
++#else
+         putb(&q, i); /* dest I/O APIC interrupt in */
++#endif        
+     }
+     /* patch length */
+     len = q - mp_config_table;

Modified: branches/stable_0_10/pc-bios/bios-pq/series
===================================================================
--- branches/stable_0_10/pc-bios/bios-pq/series	2009-04-17 21:05:45 UTC (rev 7171)
+++ branches/stable_0_10/pc-bios/bios-pq/series	2009-04-17 21:09:14 UTC (rev 7172)
@@ -9,3 +9,4 @@
 0009_qemu-bios-pci-hotplug-support.patch
 0010_bios-mark-the-acpi-sci-interrupt-as-connected-to-irq-9.patch
 0011_read-additional-acpi-tables-from-a-vm.patch
+0013_fix-non-acpi-timer-interrupt-routing.patch