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envelope-from=kshk@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=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: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org This field is only used when S390PCIBusDevice exists, so it can be moved there to simplify S390PCIIOMMU towards a structure that contains only the IOMMU container information needed by the PCI layer for a given slot. This also allows to save/restore this field during migration. Reviewed-by: Farhan Ali Reviewed-by: Matthew Rosato Signed-off-by: Konstantin Shkolnyy --- hw/s390x/s390-pci-bus.c | 8 +++----- hw/s390x/s390-pci-inst.c | 14 +++++--------- include/hw/s390x/s390-pci-bus.h | 2 +- 3 files changed, 9 insertions(+), 15 deletions(-) diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index b0aaea49cf..799e596fec 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -540,7 +540,6 @@ static IOMMUTLBEntry s390_translate_iommu(IOMMUMemoryRegion *mr, hwaddr addr, IOMMUAccessFlags flag, int iommu_idx) { S390PCIBusDevice *pbdev = container_of(mr, S390PCIBusDevice, iommu_mr); - S390PCIIOMMU *iommu = pbdev->iommu; S390IOTLBEntry *entry; uint64_t iova = addr & TARGET_PAGE_MASK; uint16_t error = 0; @@ -565,7 +564,7 @@ static IOMMUTLBEntry s390_translate_iommu(IOMMUMemoryRegion *mr, hwaddr addr, trace_s390_pci_iommu_xlate(addr); - if (addr < pbdev->pba || addr > iommu->pal) { + if (addr < pbdev->pba || addr > pbdev->pal) { error = ERR_EVENT_OORANGE; goto err; } @@ -600,10 +599,9 @@ static void s390_pci_ioat_replay(S390PCIBusDevice *pbdev) uint16_t error = 0; uint32_t dma_avail; hwaddr curr, end; - S390PCIIOMMU *iommu = pbdev->iommu; curr = pbdev->pba; - end = iommu->pal; + end = pbdev->pal; if (pbdev->dm_mr) { /* If direct mapping is used, there are no guest tables to replay */ @@ -793,7 +791,7 @@ void s390_pci_iommu_enable(S390PCIBusDevice *pbdev) char *name = g_strdup_printf("iommu-s390-%04x", pbdev->uid); memory_region_init_iommu(&pbdev->iommu_mr, sizeof(pbdev->iommu_mr), TYPE_S390_IOMMU_MEMORY_REGION, OBJECT(&iommu->mr), - name, iommu->pal + 1); + name, pbdev->pal + 1); pbdev->iommu_enabled = true; memory_region_add_subregion(&iommu->mr, 0, MEMORY_REGION(&pbdev->iommu_mr)); g_free(name); diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c index 1006b409e4..98380526d1 100644 --- a/hw/s390x/s390-pci-inst.c +++ b/hw/s390x/s390-pci-inst.c @@ -720,7 +720,6 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra) uint32_t fh; uint16_t error = 0; S390PCIBusDevice *pbdev; - S390PCIIOMMU *iommu; S390IOTLBEntry entry; hwaddr start, end, sstart; uint32_t dma_avail; @@ -762,7 +761,6 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra) break; } - iommu = pbdev->iommu; if (pbdev->dma_limit) { dma_avail = pbdev->dma_limit->avail; } else { @@ -773,7 +771,7 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra) goto err; } - if (end < start || end < pbdev->pba || start > iommu->pal) { + if (end < start || end < pbdev->pba || start > pbdev->pal) { error = ERR_EVENT_OORANGE; goto err; } @@ -782,7 +780,7 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra) * aperture, clamp the request to the aperture and ignore the rest. */ sstart = MAX(start, pbdev->pba); - end = MIN(end, iommu->pal + 1); + end = MIN(end, pbdev->pal + 1); retry: start = sstart; @@ -1033,7 +1031,6 @@ bool s390_pci_is_translation_enabled(uint64_t g_iota) static int reg_ioat(CPUS390XState *env, S390PCIBusDevice *pbdev, ZpciFib fib, uintptr_t ra) { - S390PCIIOMMU *iommu = pbdev->iommu; uint64_t pba = ldq_be_p(&fib.pba); uint64_t pal = ldq_be_p(&fib.pal); uint64_t g_iota = ldq_be_p(&fib.iota); @@ -1075,7 +1072,7 @@ static int reg_ioat(CPUS390XState *env, S390PCIBusDevice *pbdev, ZpciFib fib, } pbdev->pba = pba; - iommu->pal = pal; + pbdev->pal = pal; pbdev->g_iota = g_iota; if (t) { @@ -1089,10 +1086,9 @@ static int reg_ioat(CPUS390XState *env, S390PCIBusDevice *pbdev, ZpciFib fib, void pci_dereg_ioat(S390PCIBusDevice *pbdev) { - S390PCIIOMMU *iommu = pbdev->iommu; s390_pci_iommu_disable(pbdev); pbdev->pba = 0; - iommu->pal = 0; + pbdev->pal = 0; pbdev->g_iota = 0; } @@ -1465,7 +1461,7 @@ int stpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar, } stq_be_p(&fib.pba, pbdev->pba); - stq_be_p(&fib.pal, pbdev->iommu->pal); + stq_be_p(&fib.pal, pbdev->pal); stq_be_p(&fib.iota, pbdev->g_iota); stq_be_p(&fib.aibv, pbdev->routes.adapter.ind_addr); stq_be_p(&fib.aisb, pbdev->routes.adapter.summary_addr); diff --git a/include/hw/s390x/s390-pci-bus.h b/include/hw/s390x/s390-pci-bus.h index 82e79885e4..9332763522 100644 --- a/include/hw/s390x/s390-pci-bus.h +++ b/include/hw/s390x/s390-pci-bus.h @@ -276,7 +276,6 @@ struct S390PCIIOMMU { Object parent_obj; AddressSpace as; MemoryRegion mr; - uint64_t pal; uint64_t max_dma_limit; }; @@ -353,6 +352,7 @@ struct S390PCIBusDevice { GHashTable *iotlb; uint64_t g_iota; uint64_t pba; + uint64_t pal; S390PCIDMACount *dma_limit; MemoryRegion msix_notify_mr; IndAddr *summary_ind; -- 2.34.1