diff options
author | Marcelo Tosatti <mtosatti@redhat.com> | 2012-10-11 05:27:15 -0300 |
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committer | Marcelo Tosatti <mtosatti@redhat.com> | 2012-10-11 05:27:15 -0300 |
commit | 4d9367b76f71c6d938cf8201392abe4bfb1136cb (patch) | |
tree | 93a31afc3151c19e4906aed6748e842d8431fb02 /hw/vfio_pci_int.h | |
parent | 6b414d9fb86527118f3ddb81a1d1a684b3548a9d (diff) | |
parent | 8e65440d5f64435c003d32088757f702b86af9b4 (diff) |
* upstream-merge: (575 commits)
ssi: Add slave autoconnect helper
MAINTAINERS: Added maintainerships for SSI
xilinx_zynq: Added SPI controllers + flashes
xilinx_spips: Xilinx Zynq SPI cntrlr device model
petalogix-ml605: added SPI controller with n25q128
xilinx_spi: Initial impl. of Xilinx SPI controller
m25p80: Initial implementation of SPI flash device
hw: Added generic FIFO API.
stellaris: Removed SSI mux
qdev: allow multiple qdev_init_gpio_in() calls
ssi: Added create_slave_no_init()
ssi: Implemented CS behaviour
ssi: Support for multiple attached devices
qemu-barrier: Fix compilation on i386 hosts
target-sparc: Optimize conditionals using SUBCC
target-sparc: Fall through from not-taken trap
target-sparc: Cleanup "global" temporary allocation
target-sparc: Use movcond for FMOV*R
target-sparc: Use movcond in mulscc
target-sparc: Move taddcctv and tsubcctv out of line
...
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'hw/vfio_pci_int.h')
-rw-r--r-- | hw/vfio_pci_int.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/hw/vfio_pci_int.h b/hw/vfio_pci_int.h new file mode 100644 index 000000000..3812d8d7f --- /dev/null +++ b/hw/vfio_pci_int.h @@ -0,0 +1,114 @@ +/* + * vfio based device assignment support + * + * Copyright Red Hat, Inc. 2012 + * + * Authors: + * Alex Williamson <alex.williamson@redhat.com> + * + * This work is licensed under the terms of the GNU GPL, version 2. See + * the COPYING file in the top-level directory. + */ + +#ifndef HW_VFIO_PCI_INT_H +#define HW_VFIO_PCI_INT_H + +#include "qemu-common.h" +#include "qemu-queue.h" +#include "pci.h" +#include "event_notifier.h" + +typedef struct VFIOBAR { + off_t fd_offset; /* offset of BAR within device fd */ + int fd; /* device fd, allows us to pass VFIOBAR as opaque data */ + MemoryRegion mem; /* slow, read/write access */ + MemoryRegion mmap_mem; /* direct mapped access */ + void *mmap; + size_t size; + uint32_t flags; /* VFIO region flags (rd/wr/mmap) */ + uint8_t nr; /* cache the BAR number for debug */ +} VFIOBAR; + +typedef struct VFIOINTx { + bool pending; /* interrupt pending */ + bool kvm_accel; /* set when QEMU bypass through KVM enabled */ + uint8_t pin; /* which pin to pull for qemu_set_irq */ + EventNotifier interrupt; /* eventfd triggered on interrupt */ + EventNotifier unmask; /* eventfd for unmask on QEMU bypass */ + PCIINTxRoute route; /* routing info for QEMU bypass */ + bool disabled; + char *intx; +} VFIOINTx; + +struct VFIODevice; + +typedef struct VFIOMSIVector { + EventNotifier interrupt; /* eventfd triggered on interrupt */ + struct VFIODevice *vdev; /* back pointer to device */ + int virq; /* KVM irqchip route for QEMU bypass */ + bool use; +} VFIOMSIVector; + +enum { + VFIO_INT_NONE = 0, + VFIO_INT_INTx = 1, + VFIO_INT_MSI = 2, + VFIO_INT_MSIX = 3, +}; + +struct VFIOGroup; + +typedef struct VFIOContainer { + int fd; /* /dev/vfio/vfio, empowered by the attached groups */ + struct { + /* enable abstraction to support various iommu backends */ + union { + MemoryListener listener; /* Used by type1 iommu */ + }; + void (*release)(struct VFIOContainer *); + } iommu_data; + QLIST_HEAD(, VFIOGroup) group_list; + QLIST_ENTRY(VFIOContainer) next; +} VFIOContainer; + +/* Cache of MSI-X setup plus extra mmap and memory region for split BAR map */ +typedef struct VFIOMSIXInfo { + uint8_t table_bar; + uint8_t pba_bar; + uint16_t entries; + uint32_t table_offset; + uint32_t pba_offset; + MemoryRegion mmap_mem; + void *mmap; +} VFIOMSIXInfo; + +typedef struct VFIODevice { + PCIDevice pdev; + int fd; + VFIOINTx intx; + unsigned int config_size; + off_t config_offset; /* Offset of config space region within device fd */ + unsigned int rom_size; + off_t rom_offset; /* Offset of ROM region within device fd */ + int msi_cap_size; + VFIOMSIVector *msi_vectors; + VFIOMSIXInfo *msix; + int nr_vectors; /* Number of MSI/MSIX vectors currently in use */ + int interrupt; /* Current interrupt type */ + VFIOBAR bars[PCI_NUM_REGIONS - 1]; /* No ROM */ + PCIHostDeviceAddress host; + QLIST_ENTRY(VFIODevice) next; + struct VFIOGroup *group; + bool reset_works; +} VFIODevice; + +typedef struct VFIOGroup { + int fd; + int groupid; + VFIOContainer *container; + QLIST_HEAD(, VFIODevice) device_list; + QLIST_ENTRY(VFIOGroup) next; + QLIST_ENTRY(VFIOGroup) container_next; +} VFIOGroup; + +#endif /* HW_VFIO_PCI_INT_H */ |