120 lines
3.9 KiB
Diff
120 lines
3.9 KiB
Diff
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From 498a3d8b7d28b8c114d65d9db5ccf3e96e2458f1 Mon Sep 17 00:00:00 2001
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From: Gerd Hoffmann <kraxel@redhat.com>
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Date: Mon, 7 Nov 2011 16:33:09 +0100
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Subject: [PATCH] ac97: don't override the pci subsystem id
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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This patch removes the code lines which set the subsystem id for the
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emulated ac97 card to 8086:0000. Due to the device id being zero the
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subsystem id isn't vaild anyway. With the patch applied the sound card
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gets the default qemu subsystem id (1af4:1100) instead.
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[ v2: old & broken id is maintained for -M pc-$oldqemuversion ]
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Cc: Takashi Iwai <tiwai@suse.de>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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(cherry picked from commit 25a21c94c0055e078acb7f7455e66c8a15f32385)
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Signed-off-by: Bruce Rogers <brogers@suse.com>
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Signed-off-by: Andreas Färber <afaerber@suse.de>
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---
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hw/ac97.c | 16 +++++++++++-----
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hw/pc_piix.c | 16 ++++++++++++++++
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2 files changed, 27 insertions(+), 5 deletions(-)
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diff --git a/hw/ac97.c b/hw/ac97.c
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index 0b59896..a039481 100644
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--- a/hw/ac97.c
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+++ b/hw/ac97.c
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@@ -149,6 +149,7 @@ typedef struct AC97BusMasterRegs {
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typedef struct AC97LinkState {
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PCIDevice dev;
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QEMUSoundCard card;
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+ uint32_t use_broken_id;
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uint32_t glob_cnt;
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uint32_t glob_sta;
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uint32_t cas;
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@@ -1301,11 +1302,12 @@ static int ac97_initfn (PCIDevice *dev)
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c[PCI_BASE_ADDRESS_0 + 6] = 0x00;
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c[PCI_BASE_ADDRESS_0 + 7] = 0x00;
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- c[PCI_SUBSYSTEM_VENDOR_ID] = 0x86; /* svid subsystem vendor id rwo */
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- c[PCI_SUBSYSTEM_VENDOR_ID + 1] = 0x80;
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-
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- c[PCI_SUBSYSTEM_ID] = 0x00; /* sid subsystem id rwo */
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- c[PCI_SUBSYSTEM_ID + 1] = 0x00;
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+ if (s->use_broken_id) {
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+ c[PCI_SUBSYSTEM_VENDOR_ID] = 0x86;
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+ c[PCI_SUBSYSTEM_VENDOR_ID + 1] = 0x80;
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+ c[PCI_SUBSYSTEM_ID] = 0x00;
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+ c[PCI_SUBSYSTEM_ID + 1] = 0x00;
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+ }
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c[PCI_INTERRUPT_LINE] = 0x00; /* intr_ln interrupt line rw */
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/* TODO: RST# value should be 0. */
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@@ -1336,6 +1338,10 @@ static PCIDeviceInfo ac97_info = {
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.device_id = PCI_DEVICE_ID_INTEL_82801AA_5,
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.revision = 0x01,
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.class_id = PCI_CLASS_MULTIMEDIA_AUDIO,
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+ .qdev.props = (Property[]) {
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+ DEFINE_PROP_UINT32("use_broken_id", AC97LinkState, use_broken_id, 0),
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+ DEFINE_PROP_END_OF_LIST(),
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+ }
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};
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static void ac97_register (void)
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diff --git a/hw/pc_piix.c b/hw/pc_piix.c
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index c5c16b4..31552fd 100644
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--- a/hw/pc_piix.c
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+++ b/hw/pc_piix.c
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@@ -300,6 +300,10 @@ static QEMUMachine pc_machine_v0_13 = {
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.driver = "virtio-net-pci",
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.property = "event_idx",
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.value = "off",
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+ },{
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+ .driver = "AC97",
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+ .property = "use_broken_id",
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+ .value = stringify(1),
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},
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{ /* end of list */ }
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},
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@@ -343,6 +347,10 @@ static QEMUMachine pc_machine_v0_12 = {
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.driver = "virtio-net-pci",
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.property = "event_idx",
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.value = "off",
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+ },{
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+ .driver = "AC97",
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+ .property = "use_broken_id",
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+ .value = stringify(1),
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},
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{ /* end of list */ }
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}
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@@ -394,6 +402,10 @@ static QEMUMachine pc_machine_v0_11 = {
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.driver = "virtio-net-pci",
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.property = "event_idx",
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.value = "off",
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+ },{
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+ .driver = "AC97",
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+ .property = "use_broken_id",
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+ .value = stringify(1),
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},
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{ /* end of list */ }
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}
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@@ -457,6 +469,10 @@ static QEMUMachine pc_machine_v0_10 = {
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.driver = "virtio-net-pci",
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.property = "event_idx",
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.value = "off",
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+ },{
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+ .driver = "AC97",
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+ .property = "use_broken_id",
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+ .value = stringify(1),
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},
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{ /* end of list */ }
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},
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--
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1.7.11.2
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