From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58062) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gFTu6-00036E-6O for qemu-devel@nongnu.org; Wed, 24 Oct 2018 20:53:40 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gFTu5-0005BT-9l for qemu-devel@nongnu.org; Wed, 24 Oct 2018 20:53:38 -0400 Received: from mx1.redhat.com ([209.132.183.28]:48684) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gFTu4-00059Y-Up for qemu-devel@nongnu.org; Wed, 24 Oct 2018 20:53:37 -0400 Date: Wed, 24 Oct 2018 20:53:30 -0400 From: "Michael S. Tsirkin" Message-ID: <20181025005110.249256-11-mst@redhat.com> References: <20181025005110.249256-1-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181025005110.249256-1-mst@redhat.com> Subject: [Qemu-devel] [PULL v2 10/28] x86_iommu/amd: make the address space naming consistent with intel-iommu List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Peter Maydell , "Singh, Brijesh" , Peter Xu , Paolo Bonzini , Richard Henderson , Eduardo Habkost , Marcel Apfelbaum , Tom Lendacky , Suravee Suthikulpanit From: "Singh, Brijesh" To be consistent with intel-iommu: - rename the address space to use '_' instead of '-' - update the memory region relationships Signed-off-by: Brijesh Singh Reviewed-by: Peter Xu Cc: Peter Xu Cc: "Michael S. Tsirkin" Cc: Paolo Bonzini Cc: Richard Henderson Cc: Eduardo Habkost Cc: Marcel Apfelbaum Cc: Tom Lendacky Cc: Suravee Suthikulpanit Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/i386/amd_iommu.c | 34 +++++++++++++++++++++++++++------- 1 file changed, 27 insertions(+), 7 deletions(-) diff --git a/hw/i386/amd_iommu.c b/hw/i386/amd_iommu.c index 7206bb09c2..4bec1c6688 100644 --- a/hw/i386/amd_iommu.c +++ b/hw/i386/amd_iommu.c @@ -55,6 +55,7 @@ struct AMDVIAddressSpace { uint8_t bus_num; /* bus number */ uint8_t devfn; /* device function */ AMDVIState *iommu_state; /* AMDVI - one per machine */ + MemoryRegion root; /* AMDVI Root memory map region */ IOMMUMemoryRegion iommu; /* Device's address translation region */ MemoryRegion iommu_ir; /* Device's interrupt remapping region */ AddressSpace as; /* device's corresponding address space */ @@ -1032,8 +1033,9 @@ static IOMMUTLBEntry amdvi_translate(IOMMUMemoryRegion *iommu, hwaddr addr, static AddressSpace *amdvi_host_dma_iommu(PCIBus *bus, void *opaque, int devfn) { + char name[128]; AMDVIState *s = opaque; - AMDVIAddressSpace **iommu_as; + AMDVIAddressSpace **iommu_as, *amdvi_dev_as; int bus_num = pci_bus_num(bus); iommu_as = s->address_spaces[bus_num]; @@ -1046,19 +1048,37 @@ static AddressSpace *amdvi_host_dma_iommu(PCIBus *bus, void *opaque, int devfn) /* set up AMD-Vi region */ if (!iommu_as[devfn]) { + snprintf(name, sizeof(name), "amd_iommu_devfn_%d", devfn); + iommu_as[devfn] = g_malloc0(sizeof(AMDVIAddressSpace)); iommu_as[devfn]->bus_num = (uint8_t)bus_num; iommu_as[devfn]->devfn = (uint8_t)devfn; iommu_as[devfn]->iommu_state = s; - memory_region_init_iommu(&iommu_as[devfn]->iommu, - sizeof(iommu_as[devfn]->iommu), + amdvi_dev_as = iommu_as[devfn]; + + /* + * Memory region relationships looks like (Address range shows + * only lower 32 bits to make it short in length...): + * + * |-----------------+-------------------+----------| + * | Name | Address range | Priority | + * |-----------------+-------------------+----------+ + * | amdvi_root | 00000000-ffffffff | 0 | + * | amdvi_iommu | 00000000-ffffffff | 1 | + * |-----------------+-------------------+----------| + */ + memory_region_init_iommu(&amdvi_dev_as->iommu, + sizeof(amdvi_dev_as->iommu), TYPE_AMD_IOMMU_MEMORY_REGION, OBJECT(s), - "amd-iommu", UINT64_MAX); - address_space_init(&iommu_as[devfn]->as, - MEMORY_REGION(&iommu_as[devfn]->iommu), - "amd-iommu"); + "amd_iommu", UINT64_MAX); + memory_region_init(&amdvi_dev_as->root, OBJECT(s), + "amdvi_root", UINT64_MAX); + address_space_init(&amdvi_dev_as->as, &amdvi_dev_as->root, name); + memory_region_add_subregion_overlap(&amdvi_dev_as->root, 0, + MEMORY_REGION(&amdvi_dev_as->iommu), + 1); } return &iommu_as[devfn]->as; } -- MST