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pci: add pci_register_bar_simple() API 

This is similar to pci_register_bar(), but automatically registers a single
memory region spanning the entire BAR.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Avi Kivity 2011-04-04 18:27:58 +03:00 committed by Michael S. Tsirkin
parent af94482bce
commit 17cbcb0bf7
2 changed files with 20 additions and 0 deletions
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17
hw/pci.c
View File

@ -866,6 +866,7 @@ void pci_register_bar(PCIDevice *pci_dev, int region_num,
r->filtered_size = size;
r->type = type;
r->map_func = map_func;
r->ram_addr = IO_MEM_UNASSIGNED;
wmask = ~(size - 1);
addr = pci_bar(pci_dev, region_num);
@ -884,6 +885,22 @@ void pci_register_bar(PCIDevice *pci_dev, int region_num,
}
}
static void pci_simple_bar_mapfunc(PCIDevice *pci_dev, int region_num,
pcibus_t addr, pcibus_t size, int type)
{
cpu_register_physical_memory(addr, size,
pci_dev->io_regions[region_num].ram_addr);
}
void pci_register_bar_simple(PCIDevice *pci_dev, int region_num,
pcibus_t size, uint8_t attr, ram_addr_t ram_addr)
{
pci_register_bar(pci_dev, region_num, size,
PCI_BASE_ADDRESS_SPACE_MEMORY | attr,
pci_simple_bar_mapfunc);
pci_dev->io_regions[region_num].ram_addr = ram_addr;
}
static void pci_bridge_filter(PCIDevice *d, pcibus_t *addr, pcibus_t *size,
uint8_t type)
{

3
hw/pci.h
View File

@ -92,6 +92,7 @@ typedef struct PCIIORegion {
pcibus_t filtered_size;
uint8_t type;
PCIMapIORegionFunc *map_func;
ram_addr_t ram_addr;
} PCIIORegion;
#define PCI_ROM_SLOT 6
@ -200,6 +201,8 @@ PCIDevice *pci_register_device(PCIBus *bus, const char *name,
void pci_register_bar(PCIDevice *pci_dev, int region_num,
pcibus_t size, uint8_t type,
PCIMapIORegionFunc *map_func);
void pci_register_bar_simple(PCIDevice *pci_dev, int region_num,
pcibus_t size, uint8_t attr, ram_addr_t ram_addr);
int pci_add_capability(PCIDevice *pdev, uint8_t cap_id,
uint8_t offset, uint8_t size);