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authorAnthony Liguori <aliguori@us.ibm.com>2013-07-08 08:00:23 -0500
committerAnthony Liguori <aliguori@us.ibm.com>2013-07-08 08:00:23 -0500
commitdc11549ec213f85f6a024c7df68d349464cd1688 (patch)
tree92cd5c58d10412e722dd26b27c55a23065590605 /hw/pci-host
parent945dad6d9d795f03fd839c6e36cc883b3839f5e5 (diff)
parent7588e2b0559ae72d3c2952c7807fc05c03099970 (diff)
Merge remote-tracking branch 'mst/tags/for_anthony' into staging
pci,misc enhancements This includes some pci enhancements: Better support for systems with multiple PCI root buses FW cfg interface for more robust pci programming in BIOS Minor fixes/cleanups for fw cfg and cross-version migration - because of dependencies with other patches Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Sun 07 Jul 2013 03:11:18 PM CDT using RSA key ID D28D5469 # gpg: Can't check signature: public key not found # By David Gibson (10) and others # Via Michael S. Tsirkin * mst/tags/for_anthony: pci: Fold host_buses list into PCIHostState functionality pci: Remove domain from PCIHostBus pci: Simpler implementation of primary PCI bus pci: Add root bus parameter to pci_nic_init() pci: Add root bus argument to pci_get_bus_devfn() pci: Replace pci_find_domain() with more general pci_root_bus_path() pci: Use helper to find device's root bus in pci_find_domain() pci: Abolish pci_find_root_bus() pci: Move pci_read_devaddr to pci-hotplug-old.c pci: Cleanup configuration for pci-hotplug.c pvpanic: fix fwcfg for big endian hosts pvpanic: initialization cleanup MAINTAINERS: s/Marcelo/Paolo/ e1000: cleanup process_tx_desc pc_piix: cleanup init compat handling pc: pass PCI hole ranges to Guests pci: store PCI hole ranges in guestinfo structure range: add Range structure Message-id: 1373228271-31223-1-git-send-email-mst@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/pci-host')
-rw-r--r--hw/pci-host/piix.c9
-rw-r--r--hw/pci-host/q35.c17
2 files changed, 26 insertions, 0 deletions
diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c
index 2ab1599b5a..870e38810c 100644
--- a/hw/pci-host/piix.c
+++ b/hw/pci-host/piix.c
@@ -630,11 +630,20 @@ static const TypeInfo i440fx_info = {
.class_init = i440fx_class_init,
};
+static const char *i440fx_pcihost_root_bus_path(PCIHostState *host_bridge,
+ PCIBus *rootbus)
+{
+ /* For backwards compat with old device paths */
+ return "0000";
+}
+
static void i440fx_pcihost_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+ PCIHostBridgeClass *hc = PCI_HOST_BRIDGE_CLASS(klass);
+ hc->root_bus_path = i440fx_pcihost_root_bus_path;
k->init = i440fx_pcihost_initfn;
dc->fw_name = "pci";
dc->no_user = 1;
diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c
index 5661ace80c..8c3ee535ff 100644
--- a/hw/pci-host/q35.c
+++ b/hw/pci-host/q35.c
@@ -63,6 +63,13 @@ static int q35_host_init(SysBusDevice *dev)
return 0;
}
+static const char *q35_host_root_bus_path(PCIHostState *host_bridge,
+ PCIBus *rootbus)
+{
+ /* For backwards compat with old device paths */
+ return "0000";
+}
+
static Property mch_props[] = {
DEFINE_PROP_UINT64("MCFG", Q35PCIHost, host.base_addr,
MCH_HOST_BRIDGE_PCIEXBAR_DEFAULT),
@@ -73,7 +80,9 @@ static void q35_host_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+ PCIHostBridgeClass *hc = PCI_HOST_BRIDGE_CLASS(klass);
+ hc->root_bus_path = q35_host_root_bus_path;
k->init = q35_host_init;
dc->props = mch_props;
dc->fw_name = "pci";
@@ -244,6 +253,14 @@ static int mch_init(PCIDevice *d)
hwaddr pci_hole64_size;
MCHPCIState *mch = MCH_PCI_DEVICE(d);
+ /* Leave enough space for the biggest MCFG BAR */
+ /* TODO: this matches current bios behaviour, but
+ * it's not a power of two, which means an MTRR
+ * can't cover it exactly.
+ */
+ mch->guest_info->pci_info.w32.begin = MCH_HOST_BRIDGE_PCIEXBAR_DEFAULT +
+ MCH_HOST_BRIDGE_PCIEXBAR_MAX;
+
/* setup pci memory regions */
memory_region_init_alias(&mch->pci_hole, OBJECT(mch), "pci-hole",
mch->pci_address_space,