Patchwork [01/39] pci: add API to get a BAR's mapped address

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Submitter Avi Kivity
Date July 31, 2011, 5:57 p.m.
Message ID <1312135082-31985-2-git-send-email-avi@redhat.com>
Download mbox | patch
Permalink /patch/107604/
State New
Headers show

Comments

Avi Kivity - July 31, 2011, 5:57 p.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.

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

Patch

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);