aboutsummaryrefslogtreecommitdiff
path: root/hw
diff options
context:
space:
mode:
authorIsaku Yamahata <yamahata@valinux.co.jp>2009-10-30 21:21:10 +0900
committerAnthony Liguori <aliguori@us.ibm.com>2009-11-09 08:43:08 -0600
commit4f8589e11558f1151d95a4a3e9fce902f042df3d (patch)
treeb2564c76ca9635832de018f938cd617c9d7ce087 /hw
parent89e8b13c530a9375c43e617c09d07d78d7065926 (diff)
pci: typedef pcibus_t as uint64_t instead of uint32_t.
This patch is preliminary for 64bit bar. For 64bit bar support, change pcibus_t which represents pci bus addr/size from uint32_t to uint64_t. And also change FMT_pcibus for printf. In pci_update_mapping() checks 32bit overflow. So the check must be updated too. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw')
-rw-r--r--hw/pci.c9
-rw-r--r--hw/pci.h4
2 files changed, 10 insertions, 3 deletions
diff --git a/hw/pci.c b/hw/pci.c
index 5cf50e0562..b462bd6246 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -524,7 +524,14 @@ static void pci_update_mappings(PCIDevice *d)
mappings, we handle specific values as invalid
mappings. */
if (last_addr <= new_addr || new_addr == 0 ||
- last_addr == PCI_BAR_UNMAPPED) {
+ last_addr == PCI_BAR_UNMAPPED ||
+
+ /* Now pcibus_t is 64bit.
+ * Check if 32 bit BAR wrap around explicitly.
+ * Without this, PC ide doesn't work well.
+ * TODO: remove this work around.
+ */
+ last_addr >= UINT32_MAX) {
new_addr = PCI_BAR_UNMAPPED;
}
} else {
diff --git a/hw/pci.h b/hw/pci.h
index fa2077dda1..305c030f9c 100644
--- a/hw/pci.h
+++ b/hw/pci.h
@@ -71,8 +71,8 @@ extern target_phys_addr_t pci_mem_base;
#define PCI_DEVICE_ID_VIRTIO_BALLOON 0x1002
#define PCI_DEVICE_ID_VIRTIO_CONSOLE 0x1003
-typedef uint32_t pcibus_t;
-#define FMT_PCIBUS PRIx32
+typedef uint64_t pcibus_t;
+#define FMT_PCIBUS PRIx64
typedef void PCIConfigWriteFunc(PCIDevice *pci_dev,
uint32_t address, uint32_t data, int len);