diff options
| author | Alex Williamson <alex.williamson@redhat.com> | 2013-03-03 10:21:26 -0700 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2013-03-26 21:02:16 +0200 |
| commit | e01fd687185444944b0b5b0f8c739ae4b33eb029 (patch) | |
| tree | 39881a0805e5b76331786b8440515ed6e4037f5d /hw/pci/pci.h | |
| parent | a38b2c49bfd3f1cfc2aadd08cd049af16a342b1e (diff) | |
pci: Add PCI VGA helpers
Allow devices to register VGA memory regions for handling PCI spec
defined VGA I/O port and MMIO areas. PCI will attach these to the
bus address spaces and enable them according to the device command
register value.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/pci/pci.h')
| -rw-r--r-- | hw/pci/pci.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/hw/pci/pci.h b/hw/pci/pci.h index f340fe57c9..d837a65c2d 100644 --- a/hw/pci/pci.h +++ b/hw/pci/pci.h @@ -108,6 +108,20 @@ typedef struct PCIIORegion { #define PCI_ROM_SLOT 6 #define PCI_NUM_REGIONS 7 +enum { + QEMU_PCI_VGA_MEM, + QEMU_PCI_VGA_IO_LO, + QEMU_PCI_VGA_IO_HI, + QEMU_PCI_VGA_NUM_REGIONS, +}; + +#define QEMU_PCI_VGA_MEM_BASE 0xa0000 +#define QEMU_PCI_VGA_MEM_SIZE 0x20000 +#define QEMU_PCI_VGA_IO_LO_BASE 0x3b0 +#define QEMU_PCI_VGA_IO_LO_SIZE 0xc +#define QEMU_PCI_VGA_IO_HI_BASE 0x3c0 +#define QEMU_PCI_VGA_IO_HI_SIZE 0x20 + #include "hw/pci/pci_regs.h" /* PCI HEADER_TYPE */ @@ -234,6 +248,10 @@ struct PCIDevice { /* IRQ objects for the INTA-INTD pins. */ qemu_irq *irq; + /* Legacy PCI VGA regions */ + MemoryRegion *vga_regions[QEMU_PCI_VGA_NUM_REGIONS]; + bool has_vga; + /* Current IRQ levels. Used internally by the generic PCI code. */ uint8_t irq_state; @@ -287,6 +305,9 @@ struct PCIDevice { void pci_register_bar(PCIDevice *pci_dev, int region_num, uint8_t attr, MemoryRegion *memory); +void pci_register_vga(PCIDevice *pci_dev, MemoryRegion *mem, + MemoryRegion *io_lo, MemoryRegion *io_hi); +void pci_unregister_vga(PCIDevice *pci_dev); pcibus_t pci_get_bar_addr(PCIDevice *pci_dev, int region_num); int pci_add_capability(PCIDevice *pdev, uint8_t cap_id, |