Attachment 609726 Details for Bug 854304 – backport

[patch] backport

rhel5.patch (text/plain), 1.27 KB, created by Laszlo Ersek on 2012-09-04 15:20:08 UTC

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Creator: Laszlo Ersek

Created: 2012-09-04 15:20:08 UTC

Size: 1.27 KB

patch

obsolete

>From ffbaa4c687c6abedffa0c219af13d43d6fadcd5d Mon Sep 17 00:00:00 2001
>From: Laszlo Ersek <lersek@redhat.com>
>Date: Tue, 4 Sep 2012 15:21:44 +0200
>Subject: [RHEL-6.3 qemu-kvm PATCH] reset PMBA and PMREGMISC PIIX4 registers
>
>The bug causes Windows + OVMF hang after reboot since OVMF
>checks PMREGMISC to see if IO space is enabled and skip
>configuration if it is.
>
>Upstream: 4d09d37c.
>
>Signed-off-by: Laszlo Ersek <lersek@redhat.com>
>---
> hw/acpi.c |    5 +++--
> 1 files changed, 3 insertions(+), 2 deletions(-)
>
>diff --git a/hw/acpi.c b/hw/acpi.c
>index 8501f3e..cb2edde 100644
>--- a/hw/acpi.c
>+++ b/hw/acpi.c
>@@ -628,6 +628,9 @@ static void piix4_reset(void *opaque)
>     pci_conf[0x5a] = 0;
>     pci_conf[0x5b] = 0;
> 
>+    pci_conf[0x40] = 0x01; /* PM io base read only bit */
>+    pci_conf[0x80] = 0;
>+
>     if (kvm_enabled()) {
>         /* Mark SMM as already inited (until KVM supports SMM). */
>         pci_conf[0x5B] = 0x02;
>@@ -679,8 +682,6 @@ static int piix4_pm_initfn(PCIDevice *dev)
>     pci_conf[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
>     pci_conf[0x3d] = 0x01; // interrupt pin 1
> 
>-    pci_conf[0x40] = 0x01; /* PM io base read only bit */
>-
> #if defined(TARGET_IA64)
>     pci_conf[0x40] = 0x41; /* PM io base read only bit */
>     pci_conf[0x41] = 0x1f;
>-- 
>1.7.1
>

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Attachments on bug 854304: 609726