From patchwork Thu Sep 10 10:56:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Liu X-Patchwork-Id: 11767603 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5D2DA16C0 for ; Thu, 10 Sep 2020 11:02:14 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F157120BED for ; Thu, 10 Sep 2020 11:02:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F157120BED Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:40638 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kGKLF-0007fY-0L for patchwork-qemu-devel@patchwork.kernel.org; Thu, 10 Sep 2020 07:02:13 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55886) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kGKEJ-0003eh-EZ for qemu-devel@nongnu.org; Thu, 10 Sep 2020 06:55:03 -0400 Received: from mga03.intel.com ([134.134.136.65]:26657) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kGKEE-0005wd-UC for qemu-devel@nongnu.org; Thu, 10 Sep 2020 06:55:03 -0400 IronPort-SDR: KvVk+gOLcwidOX6ArLO7JN0NYsN7nZQ6/xYI84KCW6N/9sykN3erwJAe/gD+PmPGLGqOVnuwLj 7/xykAVMthSg== X-IronPort-AV: E=McAfee;i="6000,8403,9739"; a="158545468" X-IronPort-AV: E=Sophos;i="5.76,412,1592895600"; d="scan'208";a="158545468" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Sep 2020 03:54:39 -0700 IronPort-SDR: pxsns5oHBcDU3RHDPe6ux8bXtsLTc/ZyyPBca7CIQjAul94JVVbovc1ThMWq121jabmFBvuaQd wxRj507KSjtg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.76,412,1592895600"; d="scan'208";a="334140042" Received: from jacob-builder.jf.intel.com ([10.7.199.155]) by orsmga008.jf.intel.com with ESMTP; 10 Sep 2020 03:54:39 -0700 From: Liu Yi L To: qemu-devel@nongnu.org, alex.williamson@redhat.com, peterx@redhat.com, jasowang@redhat.com Subject: [RFC v10 03/25] hw/pci: modify pci_setup_iommu() to set PCIIOMMUOps Date: Thu, 10 Sep 2020 03:56:16 -0700 Message-Id: <1599735398-6829-4-git-send-email-yi.l.liu@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1599735398-6829-1-git-send-email-yi.l.liu@intel.com> References: <1599735398-6829-1-git-send-email-yi.l.liu@intel.com> Received-SPF: pass client-ip=134.134.136.65; envelope-from=yi.l.liu@intel.com; helo=mga03.intel.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/10 06:54:39 X-ACL-Warn: Detected OS = FreeBSD 9.x or newer [fuzzy] X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jean-philippe@linaro.org, kevin.tian@intel.com, yi.l.liu@intel.com, Yi Sun , kvm@vger.kernel.org, mst@redhat.com, jun.j.tian@intel.com, eric.auger@redhat.com, yi.y.sun@intel.com, Jacob Pan , pbonzini@redhat.com, hao.wu@intel.com, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" 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 Cc: Jacob Pan Cc: Peter Xu Cc: Eric Auger Cc: Yi Sun Cc: David Gibson Cc: Michael S. Tsirkin Reviewed-by: David Gibson Reviewed-by: Peter Xu Signed-off-by: Liu Yi L --- rfcv9 -> rfcv10: *) Fix a bug in pci_device_iommu_address_space() + iommu_bus->iommu_ops->get_address_space) && => + !iommu_bus->iommu_ops->get_address_space) && --- 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 3838db1..542d816 100644 --- a/hw/arm/smmu-common.c +++ b/hw/arm/smmu-common.c @@ -444,6 +444,10 @@ 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; @@ -513,7 +517,7 @@ 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 74a93a5..3676a20 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 749eb6a..bf13d59 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -3733,6 +3733,10 @@ 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); @@ -3844,7 +3848,7 @@ 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 1a62b2f..26c19e0 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..1967746 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 0a418f1..756be5e 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 4ca7258..7c46a78 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -487,10 +487,14 @@ 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 347440d..b56f313 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;