diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/vfio/pci.c | 82 | ||||
| -rw-r--r-- | hw/vfio/pci.h | 2 |
2 files changed, 50 insertions, 34 deletions
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index ebbc9d6171..30eb945a4f 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -2054,6 +2054,52 @@ static VFIODeviceOps vfio_pci_ops = { .vfio_eoi = vfio_intx_eoi, }; +int vfio_populate_vga(VFIOPCIDevice *vdev) +{ + VFIODevice *vbasedev = &vdev->vbasedev; + struct vfio_region_info *reg_info; + int ret; + + if (vbasedev->num_regions > VFIO_PCI_VGA_REGION_INDEX) { + ret = vfio_get_region_info(vbasedev, + VFIO_PCI_VGA_REGION_INDEX, ®_info); + if (ret) { + return ret; + } + + if (!(reg_info->flags & VFIO_REGION_INFO_FLAG_READ) || + !(reg_info->flags & VFIO_REGION_INFO_FLAG_WRITE) || + reg_info->size < 0xbffff + 1) { + error_report("vfio: Unexpected VGA info, flags 0x%lx, size 0x%lx", + (unsigned long)reg_info->flags, + (unsigned long)reg_info->size); + g_free(reg_info); + return -EINVAL; + } + + vdev->vga = g_new0(VFIOVGA, 1); + + vdev->vga->fd_offset = reg_info->offset; + vdev->vga->fd = vdev->vbasedev.fd; + + g_free(reg_info); + + vdev->vga->region[QEMU_PCI_VGA_MEM].offset = QEMU_PCI_VGA_MEM_BASE; + vdev->vga->region[QEMU_PCI_VGA_MEM].nr = QEMU_PCI_VGA_MEM; + QLIST_INIT(&vdev->vga->region[QEMU_PCI_VGA_MEM].quirks); + + vdev->vga->region[QEMU_PCI_VGA_IO_LO].offset = QEMU_PCI_VGA_IO_LO_BASE; + vdev->vga->region[QEMU_PCI_VGA_IO_LO].nr = QEMU_PCI_VGA_IO_LO; + QLIST_INIT(&vdev->vga->region[QEMU_PCI_VGA_IO_LO].quirks); + + vdev->vga->region[QEMU_PCI_VGA_IO_HI].offset = QEMU_PCI_VGA_IO_HI_BASE; + vdev->vga->region[QEMU_PCI_VGA_IO_HI].nr = QEMU_PCI_VGA_IO_HI; + QLIST_INIT(&vdev->vga->region[QEMU_PCI_VGA_IO_HI].quirks); + } + + return 0; +} + static int vfio_populate_device(VFIOPCIDevice *vdev) { VFIODevice *vbasedev = &vdev->vbasedev; @@ -2113,45 +2159,13 @@ static int vfio_populate_device(VFIOPCIDevice *vdev) g_free(reg_info); - if ((vdev->features & VFIO_FEATURE_ENABLE_VGA) && - vbasedev->num_regions > VFIO_PCI_VGA_REGION_INDEX) { - ret = vfio_get_region_info(vbasedev, - VFIO_PCI_VGA_REGION_INDEX, ®_info); + if (vdev->features & VFIO_FEATURE_ENABLE_VGA) { + ret = vfio_populate_vga(vdev); if (ret) { error_report( "vfio: Device does not support requested feature x-vga"); goto error; } - - if (!(reg_info->flags & VFIO_REGION_INFO_FLAG_READ) || - !(reg_info->flags & VFIO_REGION_INFO_FLAG_WRITE) || - reg_info->size < 0xbffff + 1) { - error_report("vfio: Unexpected VGA info, flags 0x%lx, size 0x%lx", - (unsigned long)reg_info->flags, - (unsigned long)reg_info->size); - g_free(reg_info); - ret = -1; - goto error; - } - - vdev->vga = g_new0(VFIOVGA, 1); - - vdev->vga->fd_offset = reg_info->offset; - vdev->vga->fd = vdev->vbasedev.fd; - - g_free(reg_info); - - vdev->vga->region[QEMU_PCI_VGA_MEM].offset = QEMU_PCI_VGA_MEM_BASE; - vdev->vga->region[QEMU_PCI_VGA_MEM].nr = QEMU_PCI_VGA_MEM; - QLIST_INIT(&vdev->vga->region[QEMU_PCI_VGA_MEM].quirks); - - vdev->vga->region[QEMU_PCI_VGA_IO_LO].offset = QEMU_PCI_VGA_IO_LO_BASE; - vdev->vga->region[QEMU_PCI_VGA_IO_LO].nr = QEMU_PCI_VGA_IO_LO; - QLIST_INIT(&vdev->vga->region[QEMU_PCI_VGA_IO_LO].quirks); - - vdev->vga->region[QEMU_PCI_VGA_IO_HI].offset = QEMU_PCI_VGA_IO_HI_BASE; - vdev->vga->region[QEMU_PCI_VGA_IO_HI].nr = QEMU_PCI_VGA_IO_HI; - QLIST_INIT(&vdev->vga->region[QEMU_PCI_VGA_IO_HI].quirks); } irq_info.index = VFIO_PCI_ERR_IRQ_INDEX; diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h index b8a7189290..3976f68549 100644 --- a/hw/vfio/pci.h +++ b/hw/vfio/pci.h @@ -157,4 +157,6 @@ void vfio_bar_quirk_exit(VFIOPCIDevice *vdev, int nr); void vfio_bar_quirk_finalize(VFIOPCIDevice *vdev, int nr); void vfio_setup_resetfn_quirk(VFIOPCIDevice *vdev); +int vfio_populate_vga(VFIOPCIDevice *vdev); + #endif /* HW_VFIO_VFIO_PCI_H */ |