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virtio-iommu: Rename reserved_regions into prop_resv_regions

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Rename VirtIOIOMMU (nb_)reserved_regions fields with the "prop_" prefix
to highlight those fields are set through a property, at machine level.
They are IOMMU wide.

A subsequent patch will introduce per IOMMUDevice reserved regions
that will include both those IOMMU wide property reserved
regions plus, sometimes, host reserved regions, if the device is
backed by a host device protected by a physical IOMMU. Also change
nb_ prefix by nr_.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Eric Auger 2023-10-19 15:45:10 +02:00 committed by Cédric Le Goater
parent e4a8ae09c5
commit 41cc70cdf5
3 changed files with 14 additions and 13 deletions
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8
hw/virtio/virtio-iommu-pci.c
View File

@ -37,7 +37,7 @@ struct VirtIOIOMMUPCI {
static Property virtio_iommu_pci_properties[] = {
DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
DEFINE_PROP_ARRAY("reserved-regions", VirtIOIOMMUPCI,
vdev.nb_reserved_regions, vdev.reserved_regions,
vdev.nr_prop_resv_regions, vdev.prop_resv_regions,
qdev_prop_reserved_region, ReservedRegion),
DEFINE_PROP_END_OF_LIST(),
};
@ -54,9 +54,9 @@ static void virtio_iommu_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
"for the virtio-iommu-pci device");
return;
}
for (int i = 0; i < s->nb_reserved_regions; i++) {
if (s->reserved_regions[i].type != VIRTIO_IOMMU_RESV_MEM_T_RESERVED &&
s->reserved_regions[i].type != VIRTIO_IOMMU_RESV_MEM_T_MSI) {
for (int i = 0; i < s->nr_prop_resv_regions; i++) {
if (s->prop_resv_regions[i].type != VIRTIO_IOMMU_RESV_MEM_T_RESERVED &&
s->prop_resv_regions[i].type != VIRTIO_IOMMU_RESV_MEM_T_MSI) {
error_setg(errp, "reserved region %d has an invalid type", i);
error_append_hint(errp, "Valid values are 0 and 1\n");
return;

15
hw/virtio/virtio-iommu.c
View File

@ -631,22 +631,23 @@ static ssize_t virtio_iommu_fill_resv_mem_prop(VirtIOIOMMU *s, uint32_t ep,
size_t size = sizeof(prop), length = size - sizeof(prop.head), total;
int i;
total = size * s->nb_reserved_regions;
total = size * s->nr_prop_resv_regions;
if (total > free) {
return -ENOSPC;
}
for (i = 0; i < s->nb_reserved_regions; i++) {
unsigned subtype = s->reserved_regions[i].type;
for (i = 0; i < s->nr_prop_resv_regions; i++) {
unsigned subtype = s->prop_resv_regions[i].type;
Range *range = &s->prop_resv_regions[i].range;
assert(subtype == VIRTIO_IOMMU_RESV_MEM_T_RESERVED ||
subtype == VIRTIO_IOMMU_RESV_MEM_T_MSI);
prop.head.type = cpu_to_le16(VIRTIO_IOMMU_PROBE_T_RESV_MEM);
prop.head.length = cpu_to_le16(length);
prop.subtype = subtype;
prop.start = cpu_to_le64(range_lob(&s->reserved_regions[i].range));
prop.end = cpu_to_le64(range_upb(&s->reserved_regions[i].range));
prop.start = cpu_to_le64(range_lob(range));
prop.end = cpu_to_le64(range_upb(range));
memcpy(buf, &prop, size);
@ -894,8 +895,8 @@ static IOMMUTLBEntry virtio_iommu_translate(IOMMUMemoryRegion *mr, hwaddr addr,
goto unlock;
}
for (i = 0; i < s->nb_reserved_regions; i++) {
ReservedRegion *reg = &s->reserved_regions[i];
for (i = 0; i < s->nr_prop_resv_regions; i++) {
ReservedRegion *reg = &s->prop_resv_regions[i];
if (range_contains(&reg->range, addr)) {
switch (reg->type) {

4
include/hw/virtio/virtio-iommu.h
View File

@ -55,8 +55,8 @@ struct VirtIOIOMMU {
GHashTable *as_by_busptr;
IOMMUPciBus *iommu_pcibus_by_bus_num[PCI_BUS_MAX];
PCIBus *primary_bus;
ReservedRegion *reserved_regions;
uint32_t nb_reserved_regions;
ReservedRegion *prop_resv_regions;
uint32_t nr_prop_resv_regions;
GTree *domains;
QemuRecMutex mutex;
GTree *endpoints;