diff options
| author | Michael S. Tsirkin <mst@redhat.com> | 2009-06-21 19:49:54 +0300 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-06-24 09:09:14 -0500 |
| commit | 02eb84d0ec97f183ac23ee939403a139e8849b1d (patch) | |
| tree | 9425e8a576f027b67c5f4b40fdb7762b7c57b753 /hw/msix.h | |
| parent | bd4b65ee5e5f750da709ac10c70266876e515c23 (diff) | |
qemu/pci: MSI-X support functions
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>
Diffstat (limited to 'hw/msix.h')
| -rw-r--r-- | hw/msix.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/hw/msix.h b/hw/msix.h new file mode 100644 index 0000000000..3427778dc1 --- /dev/null +++ b/hw/msix.h @@ -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 |