[v2,01/38] pci: add API to get a BAR's mapped address

Message ID 1312372568-5215-2-git-send-email-avi@redhat.com
State New
Headers show

Commit Message

Avi Kivity Aug. 3, 2011, 11:55 a.m.
This is a hack, for devices that have a back-channel to read this
address back outside the normal configuration mechanisms, such
as VMware svga.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
 hw/pci.c |    5 +++++
 hw/pci.h |    1 +
 2 files changed, 6 insertions(+), 0 deletions(-)


diff --git a/hw/pci.c b/hw/pci.c
index 36db58b..912f849 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -952,6 +952,11 @@  void pci_register_bar_region(PCIDevice *pci_dev, int region_num,
     pci_dev->io_regions[region_num].memory = memory;
+pcibus_t pci_get_bar_addr(PCIDevice *pci_dev, int region_num)
+    return pci_dev->io_regions[region_num].addr;
 static void pci_bridge_filter(PCIDevice *d, pcibus_t *addr, pcibus_t *size,
                               uint8_t type)
diff --git a/hw/pci.h b/hw/pci.h
index c51156d..64282ad 100644
--- a/hw/pci.h
+++ b/hw/pci.h
@@ -207,6 +207,7 @@  void pci_register_bar_simple(PCIDevice *pci_dev, int region_num,
                              pcibus_t size, uint8_t attr, ram_addr_t ram_addr);
 void pci_register_bar_region(PCIDevice *pci_dev, int region_num,
                              uint8_t attr, MemoryRegion *memory);
+pcibus_t pci_get_bar_addr(PCIDevice *pci_dev, int region_num);
 int pci_add_capability(PCIDevice *pdev, uint8_t cap_id,
                        uint8_t offset, uint8_t size);