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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.155.12; envelope-from=john.levon@nutanix.com; helo=mx0b-002c1b01.pphosted.com X-Spam_score_int: -32 X-Spam_score: -3.3 X-Spam_bar: --- X-Spam_report: (-3.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.487, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @nutanix.com) X-ZM-MESSAGEID: 1747753815719116600 Content-Type: text/plain; charset="utf-8" Pass through the MemoryRegion to DMA operation handlers of vfio containers. The vfio-user container will need this later, to translate the vaddr into an offset for the dma map vfio-user message. Originally-by: John Johnson Signed-off-by: Jagannathan Raman Signed-off-by: Elena Ufimtseva Signed-off-by: John Levon --- include/hw/vfio/vfio-container-base.h | 9 +++++---- hw/vfio/container-base.c | 4 ++-- hw/vfio/container.c | 3 ++- hw/vfio/iommufd.c | 3 ++- hw/vfio/listener.c | 6 +++--- 5 files changed, 14 insertions(+), 11 deletions(-) diff --git a/include/hw/vfio/vfio-container-base.h b/include/hw/vfio/vfio-c= ontainer-base.h index 41c49b2aa5..c18986a621 100644 --- a/include/hw/vfio/vfio-container-base.h +++ b/include/hw/vfio/vfio-container-base.h @@ -78,7 +78,7 @@ void vfio_address_space_insert(VFIOAddressSpace *space, =20 int vfio_container_dma_map(VFIOContainerBase *bcontainer, hwaddr iova, ram_addr_t size, - void *vaddr, bool readonly); + void *vaddr, bool readonly, MemoryRegion *mrp); int vfio_container_dma_unmap(VFIOContainerBase *bcontainer, hwaddr iova, ram_addr_t size, IOMMUTLBEntry *iotlb, bool unmap_all); @@ -149,18 +149,19 @@ struct VFIOIOMMUClass { /** * @dma_map * - * Map an address range into the container. + * Map an address range into the container. Note that @mrp will within= an + * RCU read lock region across this call. * * @bcontainer: #VFIOContainerBase to use * @iova: start address to map * @size: size of the range to map * @vaddr: process virtual address of mapping * @readonly: true if mapping should be readonly + * @mrp: the memory region for this mapping */ int (*dma_map)(const VFIOContainerBase *bcontainer, hwaddr iova, ram_addr_t size, - void *vaddr, bool readonly); - + void *vaddr, bool readonly, MemoryRegion *mrp); /** * @dma_unmap * diff --git a/hw/vfio/container-base.c b/hw/vfio/container-base.c index 1c6ca94b60..a677bb6694 100644 --- a/hw/vfio/container-base.c +++ b/hw/vfio/container-base.c @@ -75,12 +75,12 @@ void vfio_address_space_insert(VFIOAddressSpace *space, =20 int vfio_container_dma_map(VFIOContainerBase *bcontainer, hwaddr iova, ram_addr_t size, - void *vaddr, bool readonly) + void *vaddr, bool readonly, MemoryRegion *mrp) { VFIOIOMMUClass *vioc =3D VFIO_IOMMU_GET_CLASS(bcontainer); =20 g_assert(vioc->dma_map); - return vioc->dma_map(bcontainer, iova, size, vaddr, readonly); + return vioc->dma_map(bcontainer, iova, size, vaddr, readonly, mrp); } =20 int vfio_container_dma_unmap(VFIOContainerBase *bcontainer, diff --git a/hw/vfio/container.c b/hw/vfio/container.c index a9f0dbaec4..98d6b9f90c 100644 --- a/hw/vfio/container.c +++ b/hw/vfio/container.c @@ -207,7 +207,8 @@ static int vfio_legacy_dma_unmap(const VFIOContainerBas= e *bcontainer, } =20 static int vfio_legacy_dma_map(const VFIOContainerBase *bcontainer, hwaddr= iova, - ram_addr_t size, void *vaddr, bool readonly) + ram_addr_t size, void *vaddr, bool readonly, + MemoryRegion *mrp) { const VFIOContainer *container =3D container_of(bcontainer, VFIOContai= ner, bcontainer); diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c index af1c7ab10a..a2518c4a5d 100644 --- a/hw/vfio/iommufd.c +++ b/hw/vfio/iommufd.c @@ -34,7 +34,8 @@ TYPE_HOST_IOMMU_DEVICE_IOMMUFD "-vfio" =20 static int iommufd_cdev_map(const VFIOContainerBase *bcontainer, hwaddr io= va, - ram_addr_t size, void *vaddr, bool readonly) + ram_addr_t size, void *vaddr, bool readonly, + MemoryRegion *mrp) { const VFIOIOMMUFDContainer *container =3D container_of(bcontainer, VFIOIOMMUFDContainer, bcontainer); diff --git a/hw/vfio/listener.c b/hw/vfio/listener.c index 0afafe3464..a1d2d2561d 100644 --- a/hw/vfio/listener.c +++ b/hw/vfio/listener.c @@ -170,7 +170,7 @@ static void vfio_iommu_map_notify(IOMMUNotifier *n, IOM= MUTLBEntry *iotlb) */ ret =3D vfio_container_dma_map(bcontainer, iova, iotlb->addr_mask + 1, vaddr, - read_only); + read_only, mr); if (ret) { error_report("vfio_container_dma_map(%p, 0x%"HWADDR_PRIx", " "0x%"HWADDR_PRIx", %p) =3D %d (%s)", @@ -240,7 +240,7 @@ static int vfio_ram_discard_notify_populate(RamDiscardL= istener *rdl, vaddr =3D memory_region_get_ram_ptr(section->mr) + start; =20 ret =3D vfio_container_dma_map(bcontainer, iova, next - start, - vaddr, section->readonly); + vaddr, section->readonly, section->mr= ); if (ret) { /* Rollback */ vfio_ram_discard_notify_discard(rdl, section); @@ -564,7 +564,7 @@ static void vfio_listener_region_add(MemoryListener *li= stener, } =20 ret =3D vfio_container_dma_map(bcontainer, iova, int128_get64(llsize), - vaddr, section->readonly); + vaddr, section->readonly, section->mr); if (ret) { error_setg(&err, "vfio_container_dma_map(%p, 0x%"HWADDR_PRIx", " "0x%"HWADDR_PRIx", %p) =3D %d (%s)", --=20 2.43.0