Patchwork [v2,6/6] piix: use 64 bit window programmed by guest

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Submitter Michael S. Tsirkin
Date Sept. 15, 2013, 8:46 a.m.
Message ID <1379234759-31527-7-git-send-email-mst@redhat.com>
Download mbox | patch
Permalink /patch/275009/
State New
Headers show

Comments

Michael S. Tsirkin - Sept. 15, 2013, 8:46 a.m.
Detect the 64 bit window programmed by firmware
and configure properties accordingly.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 hw/pci-host/piix.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

Patch

diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c
index 221d82b..c041149 100644
--- a/hw/pci-host/piix.c
+++ b/hw/pci-host/piix.c
@@ -235,18 +235,24 @@  static void i440fx_pcihost_get_pci_hole64_start(Object *obj, Visitor *v,
                                                 void *opaque, const char *name,
                                                 Error **errp)
 {
-    I440FXState *s = I440FX_PCI_HOST_BRIDGE(obj);
+    PCIHostState *h = PCI_HOST_BRIDGE(obj);
+    Range w64;
+
+    pci_bus_get_w64_range(h->bus, &w64);
 
-    visit_type_uint64(v, &s->pci_info.w64.begin, name, errp);
+    visit_type_uint64(v, &w64.begin, name, errp);
 }
 
 static void i440fx_pcihost_get_pci_hole64_end(Object *obj, Visitor *v,
                                               void *opaque, const char *name,
                                               Error **errp)
 {
-    I440FXState *s = I440FX_PCI_HOST_BRIDGE(obj);
+    PCIHostState *h = PCI_HOST_BRIDGE(obj);
+    Range w64;
+
+    pci_bus_get_w64_range(h->bus, &w64);
 
-    visit_type_uint64(v, &s->pci_info.w64.end, name, errp);
+    visit_type_uint64(v, &w64.end, name, errp);
 }
 
 static void i440fx_pcihost_initfn(Object *obj)