[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PULL 39/53] memory: introduce memory_region_unmap_iommu_notifier_range(
From: |
Michael S. Tsirkin |
Subject: |
[PULL 39/53] memory: introduce memory_region_unmap_iommu_notifier_range() |
Date: |
Thu, 2 Mar 2023 03:26:30 -0500 |
From: Jason Wang <jasowang@redhat.com>
This patch introduces a new helper to unmap the range of a specific
IOMMU notifier.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20230223065924.42503-4-jasowang@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
include/exec/memory.h | 10 ++++++++++
softmmu/memory.c | 13 +++++++++++++
2 files changed, 23 insertions(+)
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 2e602a2fad..6fa0b071f0 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -1731,6 +1731,16 @@ void memory_region_notify_iommu(IOMMUMemoryRegion
*iommu_mr,
void memory_region_notify_iommu_one(IOMMUNotifier *notifier,
IOMMUTLBEvent *event);
+/**
+ * memory_region_unmap_iommu_notifier_range: notify a unmap for an IOMMU
+ * translation that covers the
+ * range of a notifier
+ *
+ * @notifier: the notifier to be notified
+ */
+void memory_region_unmap_iommu_notifier_range(IOMMUNotifier *n);
+
+
/**
* memory_region_register_iommu_notifier: register a notifier for changes to
* IOMMU translation entries.
diff --git a/softmmu/memory.c b/softmmu/memory.c
index da7d846619..4699ba55ec 100644
--- a/softmmu/memory.c
+++ b/softmmu/memory.c
@@ -1996,6 +1996,19 @@ void memory_region_notify_iommu_one(IOMMUNotifier
*notifier,
}
}
+void memory_region_unmap_iommu_notifier_range(IOMMUNotifier *n)
+{
+ IOMMUTLBEvent event;
+
+ event.type = IOMMU_NOTIFIER_UNMAP;
+ event.entry.target_as = &address_space_memory;
+ event.entry.iova = n->start;
+ event.entry.perm = IOMMU_NONE;
+ event.entry.addr_mask = n->end - n->start;
+
+ memory_region_notify_iommu_one(n, &event);
+}
+
void memory_region_notify_iommu(IOMMUMemoryRegion *iommu_mr,
int iommu_idx,
IOMMUTLBEvent event)
--
MST
- Re: [PULL 31/53] pcie: set power indicator to off on reset by default, (continued)
- [PULL 32/53] vhost: avoid a potential use of an uninitialized variable in vhost_svq_poll(), Michael S. Tsirkin, 2023/03/02
- [PULL 34/53] hw/pci: Trace IRQ routing on PCI topology, Michael S. Tsirkin, 2023/03/02
- [PULL 33/53] libvhost-user: check for NULL when allocating a virtqueue element, Michael S. Tsirkin, 2023/03/02
- [PULL 30/53] pcie: introduce pcie_sltctl_powered_off() helper, Michael S. Tsirkin, 2023/03/02
- [PULL 35/53] chardev/char-socket: set s->listener = NULL in char_socket_finalize, Michael S. Tsirkin, 2023/03/02
- [PULL 38/53] intel-iommu: fail DEVIOTLB_UNMAP without dt mode, Michael S. Tsirkin, 2023/03/02
- [PULL 39/53] memory: introduce memory_region_unmap_iommu_notifier_range(),
Michael S. Tsirkin <=
- [PULL 37/53] intel-iommu: fail MAP notifier without caching mode, Michael S. Tsirkin, 2023/03/02
- [PULL 42/53] MAINTAINERS: Add Fan Ni as Compute eXpress Link QEMU reviewer, Michael S. Tsirkin, 2023/03/02
- [PULL 43/53] hw/mem/cxl_type3: Improve error handling in realize(), Michael S. Tsirkin, 2023/03/02
- [PULL 48/53] hw/i386/acpi: Drop duplicate _UID entry for CXL root bridge, Michael S. Tsirkin, 2023/03/02
- [PULL 50/53] qemu/bswap: Add const_le64(), Michael S. Tsirkin, 2023/03/02
- [PULL 40/53] smmu: switch to use memory_region_unmap_iommu_notifier_range(), Michael S. Tsirkin, 2023/03/02
- [PULL 41/53] intel-iommu: send UNMAP notifications for domain or global inv desc, Michael S. Tsirkin, 2023/03/02
- [PULL 46/53] hw/cxl: Add CXL_CAPACITY_MULTIPLIER definition, Michael S. Tsirkin, 2023/03/02
- [PULL 44/53] hw/pci-bridge/cxl_downstream: Fix type naming mismatch, Michael S. Tsirkin, 2023/03/02
- [PULL 36/53] memory: Optimize replay of guest mapping, Michael S. Tsirkin, 2023/03/02