diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/vfio/cpr.c | 2 | ||||
| -rw-r--r-- | hw/vfio/pci.c | 14 | ||||
| -rw-r--r-- | hw/vfio/pci.h | 1 |
3 files changed, 17 insertions, 0 deletions
diff --git a/hw/vfio/cpr.c b/hw/vfio/cpr.c index af0f12a7ad..384b56c4c7 100644 --- a/hw/vfio/cpr.c +++ b/hw/vfio/cpr.c @@ -116,6 +116,8 @@ static int vfio_cpr_pci_post_load(void *opaque, int version_id) PCIDevice *pdev = &vdev->pdev; int nr_vectors; + vfio_sub_page_bar_update_mappings(vdev); + if (msix_enabled(pdev)) { vfio_pci_msix_set_notifiers(vdev); nr_vectors = vdev->msix->entries; diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 0c4606d9cb..f5bc5359eb 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -2824,6 +2824,20 @@ static int vfio_pci_load_config(VFIODevice *vbasedev, QEMUFile *f) return ret; } +void vfio_sub_page_bar_update_mappings(VFIOPCIDevice *vdev) +{ + PCIDevice *pdev = &vdev->pdev; + int page_size = qemu_real_host_page_size(); + int bar; + + for (bar = 0; bar < PCI_ROM_SLOT; bar++) { + PCIIORegion *r = &pdev->io_regions[bar]; + if (r->addr != PCI_BAR_UNMAPPED && r->size > 0 && r->size < page_size) { + vfio_sub_page_bar_update_mapping(pdev, bar); + } + } +} + static VFIODeviceOps vfio_pci_ops = { .vfio_compute_needs_reset = vfio_pci_compute_needs_reset, .vfio_hot_reset_multi = vfio_pci_hot_reset_multi, diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h index 248e5c4b16..bca289035a 100644 --- a/hw/vfio/pci.h +++ b/hw/vfio/pci.h @@ -219,6 +219,7 @@ void vfio_pci_write_config(PCIDevice *pdev, uint64_t vfio_vga_read(void *opaque, hwaddr addr, unsigned size); void vfio_vga_write(void *opaque, hwaddr addr, uint64_t data, unsigned size); +void vfio_sub_page_bar_update_mappings(VFIOPCIDevice *vdev); bool vfio_opt_rom_in_denylist(VFIOPCIDevice *vdev); bool vfio_config_quirk_setup(VFIOPCIDevice *vdev, Error **errp); void vfio_vga_quirk_setup(VFIOPCIDevice *vdev); |