hw/vfio/pci.c

28 #include "hw/pci/msix.h"
446             set_bit(nr, vdev->msix->pending);
496 static int vfio_enable_vectors(VFIOPCIDevice *vdev, bool msix)
511     if (msix && !vdev->msix->noresize) {
524     irq_set->index = msix ? VFIO_PCI_MSIX_IRQ_INDEX : VFIO_PCI_MSI_IRQ_INDEX;
540                 (msix && msix_is_masked(&vdev->pdev, i))) {
558                                int vector_n, bool msix)
560     if ((msix && vdev->no_kvm_msix) || (!msix && vdev->no_kvm_msi)) {
707         if (vdev->msix->noresize && resizing) {
720     clear_bit(nr, vdev->msix->pending);
721     if (find_first_bit(vdev->msix->pending,
805     vdev->msi_vectors = g_new0(VFIOMSIVector, vdev->msix->entries);
979     memset(vdev->msix->pending, 0,
980            BITS_TO_LONGS(vdev->msix->entries) * sizeof(unsigned long));
1542     VFIORegion *region = &vdev->bars[vdev->msix->table_bar].region;
1563     start = vdev->msix->table_offset & qemu_real_host_page_mask();
1564     end = REAL_HOST_PAGE_ALIGN((uint64_t)vdev->msix->table_offset +
1565                                (vdev->msix->entries * PCI_MSIX_ENTRY_SIZE));
1580                                   vdev->msix->table_bar, 0, 0);
1585                               vdev->msix->table_bar, region->mmaps[0].offset,
1593                               vdev->msix->table_bar, region->mmaps[0].offset,
1605                               vdev->msix->table_bar, region->mmaps[0].offset,
1611                               vdev->msix->table_bar, region->mmaps[1].offset,
1621     if (!vdev->msix || vdev->msix_relo == OFF_AUTO_PCIBAR_OFF) {
1626     msix_sz = (vdev->msix->entries * PCI_MSIX_ENTRY_SIZE) +
1627               (QEMU_ALIGN_UP(vdev->msix->entries, 64) / 8);
1687         vdev->msix->table_offset = 0;
1695         vdev->msix->table_offset = vdev->bars[target_bar].size / 2;
1698     vdev->msix->table_bar = target_bar;
1699     vdev->msix->pba_bar = target_bar;
1701     vdev->msix->pba_offset = vdev->msix->table_offset +
1702                                   (vdev->msix->entries * PCI_MSIX_ENTRY_SIZE);
1705                          vdev->msix->table_bar, vdev->msix->table_offset);
1723     VFIOMSIXInfo *msix;
1758     msix = g_malloc0(sizeof(*msix));
1759     msix->table_bar = table & PCI_MSIX_FLAGS_BIRMASK;
1760     msix->table_offset = table & ~PCI_MSIX_FLAGS_BIRMASK;
1761     msix->pba_bar = pba & PCI_MSIX_FLAGS_BIRMASK;
1762     msix->pba_offset = pba & ~PCI_MSIX_FLAGS_BIRMASK;
1763     msix->entries = (ctrl & PCI_MSIX_FLAGS_QSIZE) + 1;
1769         g_free(msix);
1773     msix->noresize = !!(irq_info.flags & VFIO_IRQ_INFO_NORESIZE);
1780     if (msix->pba_offset >= vdev->bars[msix->pba_bar].region.size) {
1789             msix->pba_offset = 0x1000;
1797             msix->pba_offset = 0xb400;
1801             g_free(msix);
1806     trace_vfio_msix_early_setup(vdev->vbasedev.name, pos, msix->table_bar,
1807                                 msix->table_offset, msix->entries,
1808                                 msix->noresize);
1809     vdev->msix = msix;
1821     vdev->msix->pending = g_new0(unsigned long,
1822                                  BITS_TO_LONGS(vdev->msix->entries));
1823     ret = msix_init(&vdev->pdev, vdev->msix->entries,
1824                     vdev->bars[vdev->msix->table_bar].mr,
1825                     vdev->msix->table_bar, vdev->msix->table_offset,
1826                     vdev->bars[vdev->msix->pba_bar].mr,
1827                     vdev->msix->pba_bar, vdev->msix->pba_offset, pos,
1866                                  "vfio-no-msix-emulation", NULL)) {
1877     if (vdev->msix) {
1879                     vdev->bars[vdev->msix->table_bar].mr,
1880                     vdev->bars[vdev->msix->pba_bar].mr);
1881         g_free(vdev->msix->pending);
3018     g_free(vdev->msix);
3687     DEFINE_PROP_BOOL("x-no-kvm-msix", VFIOPCIDevice, no_kvm_msix, false),
3706     DEFINE_PROP_OFF_AUTO_PCIBAR("x-msix-relocation", VFIOPCIDevice, msix_relo,
3764                                           "x-no-kvm-msix",
3802                                           "x-msix-relocation",