From: Eric Auger <eric.auger@redhat.com>
To: eric.auger.pro@gmail.com, eric.auger@redhat.com,
qemu-devel@nongnu.org, qemu-arm@nongnu.org,
alex.williamson@redhat.com
Cc: peter.maydell@linaro.org, jacob.jun.pan@linux.intel.com,
jean-philippe@linaro.org, tn@semihalf.com,
chenxiang66@hisilicon.com, jiangkunkun@huawei.com,
shameerali.kolothum.thodi@huawei.com, nicoleotsuka@gmail.com,
vivek.gautam@arm.com, vdumpa@nvidia.com, yi.l.liu@intel.com,
peterx@redhat.com, zhangfei.gao@gmail.com, yuzenghui@huawei.com,
zhukeqian1@huawei.com
Subject: [RFC v9 09/29] memory: Introduce IOMMU Memory Region inject_faults API
Date: Sun, 11 Apr 2021 14:08:52 +0200 [thread overview]
Message-ID: <20210411120912.15770-10-eric.auger@redhat.com> (raw)
In-Reply-To: <20210411120912.15770-1-eric.auger@redhat.com>
This new API allows to inject @count iommu_faults into
the IOMMU memory region.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
include/exec/memory.h | 24 ++++++++++++++++++++++++
softmmu/memory.c | 10 ++++++++++
2 files changed, 34 insertions(+)
diff --git a/include/exec/memory.h b/include/exec/memory.h
index ac8521b29a..527f77c453 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -65,6 +65,8 @@ struct ReservedRegion {
unsigned type;
};
+struct iommu_fault;
+
typedef struct IOMMUTLBEntry IOMMUTLBEntry;
/* See address_space_translate: bit 0 is read, bit 1 is write. */
@@ -475,6 +477,19 @@ struct IOMMUMemoryRegionClass {
int (*iommu_set_page_size_mask)(IOMMUMemoryRegion *iommu,
uint64_t page_size_mask,
Error **errp);
+
+ /*
+ * Inject @count faults into the IOMMU memory region
+ *
+ * Optional method: if this method is not provided, then
+ * memory_region_injection_faults() will return -ENOENT
+ *
+ * @iommu: the IOMMU memory region to inject the faults in
+ * @count: number of faults to inject
+ * @buf: fault buffer
+ */
+ int (*inject_faults)(IOMMUMemoryRegion *iommu, int count,
+ struct iommu_fault *buf);
};
typedef struct CoalescedMemoryRange CoalescedMemoryRange;
@@ -1520,6 +1535,15 @@ int memory_region_iommu_num_indexes(IOMMUMemoryRegion *iommu_mr);
int memory_region_iommu_set_page_size_mask(IOMMUMemoryRegion *iommu_mr,
uint64_t page_size_mask,
Error **errp);
+/**
+ * memory_region_inject_faults : inject @count faults stored in @buf
+ *
+ * @iommu_mr: the IOMMU memory region
+ * @count: number of faults to be injected
+ * @buf: buffer containing the faults
+ */
+int memory_region_inject_faults(IOMMUMemoryRegion *iommu_mr, int count,
+ struct iommu_fault *buf);
/**
* memory_region_name: get a memory region's name
diff --git a/softmmu/memory.c b/softmmu/memory.c
index d4493ef9e4..1dd34356c0 100644
--- a/softmmu/memory.c
+++ b/softmmu/memory.c
@@ -2030,6 +2030,16 @@ int memory_region_iommu_num_indexes(IOMMUMemoryRegion *iommu_mr)
return imrc->num_indexes(iommu_mr);
}
+int memory_region_inject_faults(IOMMUMemoryRegion *iommu_mr, int count,
+ struct iommu_fault *buf)
+{
+ IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr);
+ if (!imrc->inject_faults) {
+ return -ENOENT;
+ }
+ return imrc->inject_faults(iommu_mr, count, buf);
+}
+
void memory_region_set_log(MemoryRegion *mr, bool log, unsigned client)
{
uint8_t mask = 1 << client;
--
2.26.3
next prev parent reply other threads:[~2021-04-11 12:20 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-11 12:08 [RFC v9 00/29] vSMMUv3/pSMMUv3 2 stage VFIO integration Eric Auger
2021-04-11 12:08 ` [RFC v9 01/29] hw/vfio/common: trace vfio_connect_container operations Eric Auger
2021-04-11 12:08 ` [RFC v9 02/29] update-linux-headers: Import iommu.h Eric Auger
2021-04-11 12:08 ` [RFC v9 03/29] header update against 5.12-rc6 and IOMMU/VFIO nested stage APIs Eric Auger
2021-04-11 12:08 ` [RFC v9 04/29] memory: Add new fields in IOTLBEntry Eric Auger
2021-04-11 12:08 ` [RFC v9 05/29] hw/arm/smmuv3: Improve stage1 ASID invalidation Eric Auger
2021-04-11 12:08 ` [RFC v9 06/29] hw/arm/smmu-common: Allow domain invalidation for NH_ALL/NSNH_ALL Eric Auger
2021-04-11 12:08 ` [RFC v9 07/29] memory: Add IOMMU_ATTR_VFIO_NESTED IOMMU memory region attribute Eric Auger
2021-04-11 12:08 ` [RFC v9 08/29] memory: Add IOMMU_ATTR_MSI_TRANSLATE " Eric Auger
2021-04-11 12:08 ` Eric Auger [this message]
2021-04-11 12:08 ` [RFC v9 10/29] iommu: Introduce generic header Eric Auger
2021-04-11 12:08 ` [RFC v9 11/29] pci: introduce PCIPASIDOps to PCIDevice Eric Auger
2021-04-11 12:08 ` [RFC v9 12/29] vfio: Force nested if iommu requires it Eric Auger
2021-04-11 12:08 ` [RFC v9 13/29] vfio: Introduce hostwin_from_range helper Eric Auger
2021-04-11 12:08 ` [RFC v9 14/29] vfio: Introduce helpers to DMA map/unmap a RAM section Eric Auger
2021-04-27 14:05 ` Kunkun Jiang
2021-09-03 8:22 ` Kunkun Jiang
2021-04-11 12:08 ` [RFC v9 15/29] vfio: Set up nested stage mappings Eric Auger
2021-04-13 12:10 ` Kunkun Jiang
2021-04-13 12:57 ` Auger Eric
2021-04-14 1:45 ` Kunkun Jiang
2021-04-14 8:05 ` Auger Eric
2021-04-15 2:03 ` Kunkun Jiang
2021-04-26 19:16 ` Auger Eric
2021-04-28 9:51 ` Kunkun Jiang
2021-04-29 13:58 ` Auger Eric
2021-04-26 12:30 ` Auger Eric
2021-04-27 8:58 ` Kunkun Jiang
2021-10-07 16:58 ` Eric Auger
2021-10-08 2:13 ` Kunkun Jiang
2021-04-11 12:08 ` [RFC v9 16/29] vfio: Pass stage 1 MSI bindings to the host Eric Auger
2021-10-15 10:54 ` Shameerali Kolothum Thodi
2021-04-11 12:09 ` [RFC v9 17/29] vfio: Helper to get IRQ info including capabilities Eric Auger
2021-04-11 12:09 ` [RFC v9 18/29] vfio/pci: Register handler for iommu fault Eric Auger
2021-04-11 12:09 ` [RFC v9 19/29] vfio/pci: Set up the DMA FAULT region Eric Auger
2021-04-11 12:09 ` [RFC v9 20/29] vfio/pci: Implement the DMA fault handler Eric Auger
2021-04-11 12:09 ` [RFC v9 21/29] hw/arm/smmuv3: Advertise MSI_TRANSLATE attribute Eric Auger
2021-04-11 12:09 ` [RFC v9 22/29] hw/arm/smmuv3: Store the PASID table GPA in the translation config Eric Auger
2021-04-11 12:09 ` [RFC v9 23/29] hw/arm/smmuv3: Fill the IOTLBEntry arch_id on NH_VA invalidation Eric Auger
2021-04-11 12:09 ` [RFC v9 24/29] hw/arm/smmuv3: Fill the IOTLBEntry leaf field " Eric Auger
2021-05-13 7:09 ` Kunkun Jiang
2021-04-11 12:09 ` [RFC v9 25/29] hw/arm/smmuv3: Pass stage 1 configurations to the host Eric Auger
2021-04-11 12:09 ` [RFC v9 26/29] hw/arm/smmuv3: Implement fault injection Eric Auger
2021-04-11 12:09 ` [RFC v9 27/29] hw/arm/smmuv3: Allow MAP notifiers Eric Auger
2021-04-11 12:09 ` [RFC v9 28/29] pci: Add return_page_response pci ops Eric Auger
2021-04-11 12:09 ` [RFC v9 29/29] vfio/pci: Implement return_page_response page response callback Eric Auger
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