diff options
Diffstat (limited to 'hw/pci.c')
| -rw-r--r-- | hw/pci.c | 35 |
1 files changed, 35 insertions, 0 deletions
@@ -26,6 +26,7 @@ #include "monitor.h" #include "net.h" #include "sysemu.h" +#include "loader.h" //#define DEBUG_PCI #ifdef DEBUG_PCI @@ -1438,6 +1439,40 @@ static uint8_t pci_find_capability_list(PCIDevice *pdev, uint8_t cap_id, return next; } +static void pci_map_option_rom(PCIDevice *pdev, int region_num, pcibus_t addr, pcibus_t size, int type) +{ + cpu_register_physical_memory(addr, size, pdev->rom_offset); +} + +/* Add an option rom for the device */ +int pci_add_option_rom(PCIDevice *pdev, const char *name) +{ + int size; + char *path; + void *ptr; + + path = qemu_find_file(QEMU_FILE_TYPE_BIOS, name); + if (path == NULL) { + path = qemu_strdup(name); + } + + size = get_image_size(path); + if (size & (size - 1)) { + size = 1 << qemu_fls(size); + } + + pdev->rom_offset = qemu_ram_alloc(size); + + ptr = qemu_get_ram_ptr(pdev->rom_offset); + load_image(path, ptr); + qemu_free(path); + + pci_register_bar(pdev, PCI_ROM_SLOT, size, + 0, pci_map_option_rom); + + return 0; +} + /* Reserve space and add capability to the linked list in pci config space */ int pci_add_capability(PCIDevice *pdev, uint8_t cap_id, uint8_t size) { |