motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-02 23:33:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

qemu/pci: MSI-X support functions

Browse source 
Add functions implementing MSI-X support. First user will be virtio-pci.
Note that platform must set a flag to declare MSI supported: this
is a safety measure to avoid breaking platforms which should support
MSI-X but currently lack this in the interrupt controller emulation.
For PC this will be set by APIC.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Michael S. Tsirkin 2009-06-21 19:49:54 +03:00 • committed by Anthony Liguori
parent bd4b65ee5e
commit 02eb84d0ec
4 changed files with 436 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

34
hw/msix.h Normal file
View file

@ -0,0 +1,34 @@
#ifndef QEMU_MSIX_H
#define QEMU_MSIX_H
#include "qemu-common.h"
int msix_init(PCIDevice *pdev, unsigned short nentries,
unsigned bar_nr, unsigned bar_size);
void msix_write_config(PCIDevice *pci_dev, uint32_t address,
uint32_t val, int len);
void msix_mmio_map(PCIDevice *pci_dev, int region_num,
uint32_t addr, uint32_t size, int type);
int msix_uninit(PCIDevice *d);
void msix_save(PCIDevice *dev, QEMUFile *f);
void msix_load(PCIDevice *dev, QEMUFile *f);
int msix_enabled(PCIDevice *dev);
int msix_present(PCIDevice *dev);
uint32_t msix_bar_size(PCIDevice *dev);
int msix_vector_use(PCIDevice *dev, unsigned vector);
void msix_vector_unuse(PCIDevice *dev, unsigned vector);
void msix_notify(PCIDevice *dev, unsigned vector);
void msix_reset(PCIDevice *dev);
extern int msix_supported;
#endif