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msi: implements msi

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implements msi related functions.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Isaku Yamahata 2010-10-19 18:06:32 +09:00 • committed by Michael S. Tsirkin
parent 99443c21b0
commit e4c7d2aef8
4 changed files with 401 additions and 4 deletions
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10
hw/pci.h
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@ -109,11 +109,12 @@ typedef struct PCIIORegion {
/* Bits in cap_present field. */
enum {
QEMU_PCI_CAP_MSIX = 0x1,
QEMU_PCI_CAP_EXPRESS = 0x2,
QEMU_PCI_CAP_MSI = 0x1,
QEMU_PCI_CAP_MSIX = 0x2,
QEMU_PCI_CAP_EXPRESS = 0x4,
/* multifunction capable device */
#define QEMU_PCI_CAP_MULTIFUNCTION_BITNR 2
#define QEMU_PCI_CAP_MULTIFUNCTION_BITNR 3
QEMU_PCI_CAP_MULTIFUNCTION = (1 << QEMU_PCI_CAP_MULTIFUNCTION_BITNR),
};
@ -171,6 +172,9 @@ struct PCIDevice {
/* Version id needed for VMState */
int32_t version_id;
/* Offset of MSI capability in config space */
uint8_t msi_cap;
/* Location of option rom */
char *romfile;
ram_addr_t rom_offset;