This patch modifies pci_setup_iommu() to set PCIIOMMUOps
instead of setting PCIIOMMUFunc. PCIIOMMUFunc is used to
get an address space for a PCI device in vendor specific
way. The PCIIOMMUOps still offers this functionality. But
using PCIIOMMUOps leaves space to add more iommu related
vendor specific operations.
Cc: Kevin Tian <kevin.t...@intel.com>
Cc: Jacob Pan <jacob.jun....@linux.intel.com>
Cc: Peter Xu <pet...@redhat.com>
Cc: Eric Auger <eric.au...@redhat.com>
Cc: Yi Sun <yi.y....@linux.intel.com>
Cc: David Gibson <da...@gibson.dropbear.id.au>
Cc: Michael S. Tsirkin <m...@redhat.com>
Reviewed-by: David Gibson <da...@gibson.dropbear.id.au>
Reviewed-by: Peter Xu <pet...@redhat.com>
Signed-off-by: Liu Yi L <yi.l....@intel.com>
---
hw/alpha/typhoon.c | 6 +++++-
hw/arm/smmu-common.c | 6 +++++-
hw/hppa/dino.c | 6 +++++-
hw/i386/amd_iommu.c | 6 +++++-
hw/i386/intel_iommu.c | 6 +++++-
hw/pci-host/designware.c | 6 +++++-
hw/pci-host/pnv_phb3.c | 6 +++++-
hw/pci-host/pnv_phb4.c | 6 +++++-
hw/pci-host/ppce500.c | 6 +++++-
hw/pci-host/prep.c | 6 +++++-
hw/pci-host/sabre.c | 6 +++++-
hw/pci/pci.c | 18 +++++++++++++-----
hw/ppc/ppc440_pcix.c | 6 +++++-
hw/ppc/spapr_pci.c | 6 +++++-
hw/s390x/s390-pci-bus.c | 8 ++++++--
hw/virtio/virtio-iommu.c | 6 +++++-
include/hw/pci/pci.h | 8 ++++++--
include/hw/pci/pci_bus.h | 2 +-
18 files changed, 96 insertions(+), 24 deletions(-)
diff --git a/hw/alpha/typhoon.c b/hw/alpha/typhoon.c
index 29d44df..c4ac693 100644
--- a/hw/alpha/typhoon.c
+++ b/hw/alpha/typhoon.c
@@ -740,6 +740,10 @@ static AddressSpace *typhoon_pci_dma_iommu(PCIBus *bus,
void *opaque, int devfn)
return &s->pchip.iommu_as;
}
+static const PCIIOMMUOps typhoon_iommu_ops = {
+ .get_address_space = typhoon_pci_dma_iommu,
+};
+
static void typhoon_set_irq(void *opaque, int irq, int level)
{
TyphoonState *s = opaque;
@@ -897,7 +901,7 @@ PCIBus *typhoon_init(MemoryRegion *ram, ISABus **isa_bus,
qemu_irq *p_rtc_irq,
"iommu-typhoon", UINT64_MAX);
address_space_init(&s->pchip.iommu_as, MEMORY_REGION(&s->pchip.iommu),
"pchip0-pci");
- pci_setup_iommu(b, typhoon_pci_dma_iommu, s);
+ pci_setup_iommu(b, &typhoon_iommu_ops, s);
/* Pchip0 PCI special/interrupt acknowledge, 0x801.F800.0000, 64MB. */
memory_region_init_io(&s->pchip.reg_iack, OBJECT(s), &alpha_pci_iack_ops,
diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c
index e13a5f4..447146e 100644
--- a/hw/arm/smmu-common.c
+++ b/hw/arm/smmu-common.c
@@ -343,6 +343,10 @@ static AddressSpace *smmu_find_add_as(PCIBus *bus, void
*opaque, int devfn)
return &sdev->as;
}
+static const PCIIOMMUOps smmu_ops = {
+ .get_address_space = smmu_find_add_as,
+};
+
IOMMUMemoryRegion *smmu_iommu_mr(SMMUState *s, uint32_t sid)
{
uint8_t bus_n, devfn;
@@ -437,7 +441,7 @@ static void smmu_base_realize(DeviceState *dev, Error
**errp)
s->smmu_pcibus_by_busptr = g_hash_table_new(NULL, NULL);
if (s->primary_bus) {
- pci_setup_iommu(s->primary_bus, smmu_find_add_as, s);
+ pci_setup_iommu(s->primary_bus, &smmu_ops, s);
} else {
error_setg(errp, "SMMU is not attached to any PCI bus!");
}
diff --git a/hw/hppa/dino.c b/hw/hppa/dino.c
index 7f0c622..ca2dea4 100644
--- a/hw/hppa/dino.c
+++ b/hw/hppa/dino.c
@@ -459,6 +459,10 @@ static AddressSpace *dino_pcihost_set_iommu(PCIBus *bus,
void *opaque,
return &s->bm_as;
}
+static const PCIIOMMUOps dino_iommu_ops = {
+ .get_address_space = dino_pcihost_set_iommu,
+};
+
/*
* Dino interrupts are connected as shown on Page 78, Table 23
* (Little-endian bit numbers)
@@ -580,7 +584,7 @@ PCIBus *dino_init(MemoryRegion *addr_space,
memory_region_add_subregion(&s->bm, 0xfff00000,
&s->bm_cpu_alias);
address_space_init(&s->bm_as, &s->bm, "pci-bm");
- pci_setup_iommu(b, dino_pcihost_set_iommu, s);
+ pci_setup_iommu(b, &dino_iommu_ops, s);
*p_rtc_irq = qemu_allocate_irq(dino_set_timer_irq, s, 0);
*p_ser_irq = qemu_allocate_irq(dino_set_serial_irq, s, 0);
diff --git a/hw/i386/amd_iommu.c b/hw/i386/amd_iommu.c
index 087f601..77f183d 100644
--- a/hw/i386/amd_iommu.c
+++ b/hw/i386/amd_iommu.c
@@ -1452,6 +1452,10 @@ static AddressSpace *amdvi_host_dma_iommu(PCIBus *bus,
void *opaque, int devfn)
return &iommu_as[devfn]->as;
}
+static const PCIIOMMUOps amdvi_iommu_ops = {
+ .get_address_space = amdvi_host_dma_iommu,
+};
+
static const MemoryRegionOps mmio_mem_ops = {
.read = amdvi_mmio_read,
.write = amdvi_mmio_write,
@@ -1579,7 +1583,7 @@ static void amdvi_realize(DeviceState *dev, Error **errp)
sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->mmio);
sysbus_mmio_map(SYS_BUS_DEVICE(s), 0, AMDVI_BASE_ADDR);
- pci_setup_iommu(bus, amdvi_host_dma_iommu, s);
+ pci_setup_iommu(bus, &amdvi_iommu_ops, s);
s->devid = object_property_get_int(OBJECT(&s->pci), "addr", &error_abort);
msi_init(&s->pci.dev, 0, 1, true, false, errp);
amdvi_init(s);
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index 5284bb6..76c2f70 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -3734,6 +3734,10 @@ static AddressSpace *vtd_host_dma_iommu(PCIBus *bus,
void *opaque, int devfn)
return &vtd_as->as;
}
+static PCIIOMMUOps vtd_iommu_ops = {
+ .get_address_space = vtd_host_dma_iommu,
+};
+
static bool vtd_decide_config(IntelIOMMUState *s, Error **errp)
{
X86IOMMUState *x86_iommu = X86_IOMMU_DEVICE(s);
@@ -3845,7 +3849,7 @@ static void vtd_realize(DeviceState *dev, Error **errp)
g_free, g_free);
vtd_init(s);
sysbus_mmio_map(SYS_BUS_DEVICE(s), 0, Q35_HOST_BRIDGE_IOMMU_ADDR);
- pci_setup_iommu(bus, vtd_host_dma_iommu, dev);
+ pci_setup_iommu(bus, &vtd_iommu_ops, dev);
/* Pseudo address space under root PCI bus. */
x86ms->ioapic_as = vtd_host_dma_iommu(bus, s, Q35_PSEUDO_DEVFN_IOAPIC);
qemu_add_machine_init_done_notifier(&vtd_machine_done_notify);
diff --git a/hw/pci-host/designware.c b/hw/pci-host/designware.c
index 8492c18..6a1e1ae 100644
--- a/hw/pci-host/designware.c
+++ b/hw/pci-host/designware.c
@@ -645,6 +645,10 @@ static AddressSpace *designware_pcie_host_set_iommu(PCIBus
*bus, void *opaque,
return &s->pci.address_space;
}
+static const PCIIOMMUOps designware_iommu_ops = {
+ .get_address_space = designware_pcie_host_set_iommu,
+};
+
static void designware_pcie_host_realize(DeviceState *dev, Error **errp)
{
PCIHostState *pci = PCI_HOST_BRIDGE(dev);
@@ -686,7 +690,7 @@ static void designware_pcie_host_realize(DeviceState *dev,
Error **errp)
address_space_init(&s->pci.address_space,
&s->pci.address_space_root,
"pcie-bus-address-space");
- pci_setup_iommu(pci->bus, designware_pcie_host_set_iommu, s);
+ pci_setup_iommu(pci->bus, &designware_iommu_ops, s);
qdev_realize(DEVICE(&s->root), BUS(pci->bus), &error_fatal);
}
diff --git a/hw/pci-host/pnv_phb3.c b/hw/pci-host/pnv_phb3.c
index 82132c1..10dc2c8 100644
--- a/hw/pci-host/pnv_phb3.c
+++ b/hw/pci-host/pnv_phb3.c
@@ -961,6 +961,10 @@ static AddressSpace *pnv_phb3_dma_iommu(PCIBus *bus, void
*opaque, int devfn)
return &ds->dma_as;
}
+static PCIIOMMUOps pnv_phb3_iommu_ops = {
+ .get_address_space = pnv_phb3_dma_iommu,
+};
+
static void pnv_phb3_instance_init(Object *obj)
{
PnvPHB3 *phb = PNV_PHB3(obj);
@@ -1048,7 +1052,7 @@ static void pnv_phb3_realize(DeviceState *dev, Error
**errp)
&phb->pci_mmio, &phb->pci_io,
0, 4, TYPE_PNV_PHB3_ROOT_BUS);
- pci_setup_iommu(pci->bus, pnv_phb3_dma_iommu, phb);
+ pci_setup_iommu(pci->bus, &pnv_phb3_iommu_ops, phb);
/* Add a single Root port */
qdev_prop_set_uint8(DEVICE(&phb->root), "chassis", phb->chip_id);
diff --git a/hw/pci-host/pnv_phb4.c b/hw/pci-host/pnv_phb4.c
index 75ad766..53aac37 100644
--- a/hw/pci-host/pnv_phb4.c
+++ b/hw/pci-host/pnv_phb4.c
@@ -1148,6 +1148,10 @@ static AddressSpace *pnv_phb4_dma_iommu(PCIBus *bus,
void *opaque, int devfn)
return &ds->dma_as;
}
+static PCIIOMMUOps pnv_phb4_iommu_ops = {
+ .get_address_space = pnv_phb4_dma_iommu,
+};
+
static void pnv_phb4_instance_init(Object *obj)
{
PnvPHB4 *phb = PNV_PHB4(obj);
@@ -1202,7 +1206,7 @@ static void pnv_phb4_realize(DeviceState *dev, Error
**errp)
pnv_phb4_set_irq, pnv_phb4_map_irq, phb,
&phb->pci_mmio, &phb->pci_io,
0, 4, TYPE_PNV_PHB4_ROOT_BUS);
- pci_setup_iommu(pci->bus, pnv_phb4_dma_iommu, phb);
+ pci_setup_iommu(pci->bus, &pnv_phb4_iommu_ops, phb);
/* Add a single Root port */
qdev_prop_set_uint8(DEVICE(&phb->root), "chassis", phb->chip_id);
diff --git a/hw/pci-host/ppce500.c b/hw/pci-host/ppce500.c
index d710727..5baf5db 100644
--- a/hw/pci-host/ppce500.c
+++ b/hw/pci-host/ppce500.c
@@ -439,6 +439,10 @@ static AddressSpace *e500_pcihost_set_iommu(PCIBus *bus,
void *opaque,
return &s->bm_as;
}
+static const PCIIOMMUOps ppce500_iommu_ops = {
+ .get_address_space = e500_pcihost_set_iommu,
+};
+
static void e500_pcihost_realize(DeviceState *dev, Error **errp)
{
SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
@@ -473,7 +477,7 @@ static void e500_pcihost_realize(DeviceState *dev, Error
**errp)
memory_region_init(&s->bm, OBJECT(s), "bm-e500", UINT64_MAX);
memory_region_add_subregion(&s->bm, 0x0, &s->busmem);
address_space_init(&s->bm_as, &s->bm, "pci-bm");
- pci_setup_iommu(b, e500_pcihost_set_iommu, s);
+ pci_setup_iommu(b, &ppce500_iommu_ops, s);
pci_create_simple(b, 0, "e500-host-bridge");
diff --git a/hw/pci-host/prep.c b/hw/pci-host/prep.c
index 4b93fd2..3a74e79 100644
--- a/hw/pci-host/prep.c
+++ b/hw/pci-host/prep.c
@@ -213,6 +213,10 @@ static AddressSpace *raven_pcihost_set_iommu(PCIBus *bus,
void *opaque,
return &s->bm_as;
}
+static const PCIIOMMUOps raven_iommu_ops = {
+ .get_address_space = raven_pcihost_set_iommu,
+};
+
static void raven_change_gpio(void *opaque, int n, int level)
{
PREPPCIState *s = opaque;
@@ -301,7 +305,7 @@ static void raven_pcihost_initfn(Object *obj)
memory_region_add_subregion(&s->bm, 0 , &s->bm_pci_memory_alias);
memory_region_add_subregion(&s->bm, 0x80000000, &s->bm_ram_alias);
address_space_init(&s->bm_as, &s->bm, "raven-bm");
- pci_setup_iommu(&s->pci_bus, raven_pcihost_set_iommu, s);
+ pci_setup_iommu(&s->pci_bus, &raven_iommu_ops, s);
h->bus = &s->pci_bus;
diff --git a/hw/pci-host/sabre.c b/hw/pci-host/sabre.c
index 0cc6858..7170049 100644
--- a/hw/pci-host/sabre.c
+++ b/hw/pci-host/sabre.c
@@ -113,6 +113,10 @@ static AddressSpace *sabre_pci_dma_iommu(PCIBus *bus, void
*opaque, int devfn)
return &is->iommu_as;
}
+static const PCIIOMMUOps sabre_iommu_ops = {
+ .get_address_space = sabre_pci_dma_iommu,
+};
+
static void sabre_config_write(void *opaque, hwaddr addr,
uint64_t val, unsigned size)
{
@@ -403,7 +407,7 @@ static void sabre_realize(DeviceState *dev, Error **errp)
/* IOMMU */
memory_region_add_subregion_overlap(&s->sabre_config, 0x200,
sysbus_mmio_get_region(SYS_BUS_DEVICE(s->iommu), 0), 1);
- pci_setup_iommu(phb->bus, sabre_pci_dma_iommu, s->iommu);
+ pci_setup_iommu(phb->bus, &sabre_iommu_ops, s->iommu);
/* APB secondary busses */
pci_dev = pci_new_multifunction(PCI_DEVFN(1, 0), true,
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index de0fae1..b2a2077 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -2665,7 +2665,13 @@ AddressSpace *pci_device_iommu_address_space(PCIDevice
*dev)
PCIBus *iommu_bus = bus;
uint8_t devfn = dev->devfn;
- while (iommu_bus && !iommu_bus->iommu_fn && iommu_bus->parent_dev) {
+ /*
+ * get_address_space() callback is mandatory, so needs to ensure its
+ * presence in the iommu_bus search.
+ */
+ while (iommu_bus && (!iommu_bus->iommu_ops ||
+ iommu_bus->iommu_ops->get_address_space) &&
+ iommu_bus->parent_dev) {
PCIBus *parent_bus = pci_get_bus(iommu_bus->parent_dev);
/*
@@ -2704,15 +2710,17 @@ AddressSpace *pci_device_iommu_address_space(PCIDevice
*dev)
iommu_bus = parent_bus;
}
- if (iommu_bus && iommu_bus->iommu_fn) {
- return iommu_bus->iommu_fn(bus, iommu_bus->iommu_opaque, devfn);
+ if (iommu_bus && iommu_bus->iommu_ops &&
+ iommu_bus->iommu_ops->get_address_space) {
+ return iommu_bus->iommu_ops->get_address_space(bus,
+ iommu_bus->iommu_opaque, devfn);
}
return &address_space_memory;
}
-void pci_setup_iommu(PCIBus *bus, PCIIOMMUFunc fn, void *opaque)
+void pci_setup_iommu(PCIBus *bus, const PCIIOMMUOps *ops, void *opaque)
{
- bus->iommu_fn = fn;
+ bus->iommu_ops = ops;
bus->iommu_opaque = opaque;
}
diff --git a/hw/ppc/ppc440_pcix.c b/hw/ppc/ppc440_pcix.c
index 2ee2d4f..7b17ee5 100644
--- a/hw/ppc/ppc440_pcix.c
+++ b/hw/ppc/ppc440_pcix.c
@@ -442,6 +442,10 @@ static AddressSpace *ppc440_pcix_set_iommu(PCIBus *b, void
*opaque, int devfn)
return &s->bm_as;
}
+static const PCIIOMMUOps ppc440_iommu_ops = {
+ .get_address_space = ppc440_pcix_set_iommu,
+};
+
/* The default pci_host_data_{read,write} functions in pci/pci_host.c
* deny access to registers without bit 31 set but our clients want
* this to work so we have to override these here */
@@ -487,7 +491,7 @@ static void ppc440_pcix_realize(DeviceState *dev, Error
**errp)
memory_region_init(&s->bm, OBJECT(s), "bm-ppc440-pcix", UINT64_MAX);
memory_region_add_subregion(&s->bm, 0x0, &s->busmem);
address_space_init(&s->bm_as, &s->bm, "pci-bm");
- pci_setup_iommu(h->bus, ppc440_pcix_set_iommu, s);
+ pci_setup_iommu(h->bus, &ppc440_iommu_ops, s);
memory_region_init(&s->container, OBJECT(s), "pci-container",
PCI_ALL_SIZE);
memory_region_init_io(&h->conf_mem, OBJECT(s), &pci_host_conf_le_ops,
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index 363cdb3..8be0584 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -771,6 +771,10 @@ static AddressSpace *spapr_pci_dma_iommu(PCIBus *bus, void
*opaque, int devfn)
return &phb->iommu_as;
}
+static const PCIIOMMUOps spapr_iommu_ops = {
+ .get_address_space = spapr_pci_dma_iommu,
+};
+
static char *spapr_phb_vfio_get_loc_code(SpaprPhbState *sphb, PCIDevice *pdev)
{
char *path = NULL, *buf = NULL, *host = NULL;
@@ -1956,7 +1960,7 @@ static void spapr_phb_realize(DeviceState *dev, Error
**errp)
memory_region_add_subregion(&sphb->iommu_root, SPAPR_PCI_MSI_WINDOW,
&sphb->msiwindow);
- pci_setup_iommu(bus, spapr_pci_dma_iommu, sphb);
+ pci_setup_iommu(bus, &spapr_iommu_ops, sphb);
pci_bus_set_route_irq_fn(bus, spapr_route_intx_pin_to_irq);
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
index 92146a2..9634123 100644
--- a/hw/s390x/s390-pci-bus.c
+++ b/hw/s390x/s390-pci-bus.c
@@ -635,6 +635,10 @@ static AddressSpace *s390_pci_dma_iommu(PCIBus *bus, void
*opaque, int devfn)
return &iommu->as;
}
+static const PCIIOMMUOps s390_iommu_ops = {
+ .get_address_space = s390_pci_dma_iommu,
+};
+
static uint8_t set_ind_atomic(uint64_t ind_loc, uint8_t to_be_set)
{
uint8_t expected, actual;
@@ -749,7 +753,7 @@ static void s390_pcihost_realize(DeviceState *dev, Error
**errp)
b = pci_register_root_bus(dev, NULL, s390_pci_set_irq, s390_pci_map_irq,
NULL, get_system_memory(), get_system_io(), 0,
64, TYPE_PCI_BUS);
- pci_setup_iommu(b, s390_pci_dma_iommu, s);
+ pci_setup_iommu(b, &s390_iommu_ops, s);
bus = BUS(b);
qbus_set_hotplug_handler(bus, OBJECT(dev));
@@ -909,7 +913,7 @@ static void s390_pcihost_plug(HotplugHandler *hotplug_dev,
DeviceState *dev,
pdev = PCI_DEVICE(dev);
pci_bridge_map_irq(pb, dev->id, s390_pci_map_irq);
- pci_setup_iommu(&pb->sec_bus, s390_pci_dma_iommu, s);
+ pci_setup_iommu(&pb->sec_bus, &s390_iommu_ops, s);
qbus_set_hotplug_handler(BUS(&pb->sec_bus), OBJECT(s));
diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c
index 5d56865..377d663 100644
--- a/hw/virtio/virtio-iommu.c
+++ b/hw/virtio/virtio-iommu.c
@@ -236,6 +236,10 @@ static AddressSpace *virtio_iommu_find_add_as(PCIBus *bus,
void *opaque,
return &sdev->as;
}
+static const PCIIOMMUOps virtio_iommu_ops = {
+ .get_address_space = virtio_iommu_find_add_as,
+};
+
static int virtio_iommu_attach(VirtIOIOMMU *s,
struct virtio_iommu_req_attach *req)
{
@@ -789,7 +793,7 @@ static void virtio_iommu_device_realize(DeviceState *dev,
Error **errp)
s->as_by_busptr = g_hash_table_new_full(NULL, NULL, NULL, g_free);
if (s->primary_bus) {
- pci_setup_iommu(s->primary_bus, virtio_iommu_find_add_as, s);
+ pci_setup_iommu(s->primary_bus, &virtio_iommu_ops, s);
} else {
error_setg(errp, "VIRTIO-IOMMU is not attached to any PCI bus!");
}
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index c1bf7d5..18cfba5 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -486,10 +486,14 @@ void pci_bus_get_w64_range(PCIBus *bus, Range *range);
void pci_device_deassert_intx(PCIDevice *dev);
-typedef AddressSpace *(*PCIIOMMUFunc)(PCIBus *, void *, int);
+typedef struct PCIIOMMUOps PCIIOMMUOps;
+struct PCIIOMMUOps {
+ AddressSpace * (*get_address_space)(PCIBus *bus,
+ void *opaque, int32_t devfn);
+};
AddressSpace *pci_device_iommu_address_space(PCIDevice *dev);
-void pci_setup_iommu(PCIBus *bus, PCIIOMMUFunc fn, void *opaque);
+void pci_setup_iommu(PCIBus *bus, const PCIIOMMUOps *iommu_ops, void *opaque);
static inline void
pci_set_byte(uint8_t *config, uint8_t val)
diff --git a/include/hw/pci/pci_bus.h b/include/hw/pci/pci_bus.h
index 0714f57..c281057 100644
--- a/include/hw/pci/pci_bus.h
+++ b/include/hw/pci/pci_bus.h
@@ -29,7 +29,7 @@ enum PCIBusFlags {
struct PCIBus {
BusState qbus;
enum PCIBusFlags flags;
- PCIIOMMUFunc iommu_fn;
+ const PCIIOMMUOps *iommu_ops;
void *iommu_opaque;
uint8_t devfn_min;
uint32_t slot_reserved_mask;
--
2.7.4
