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[Qemu-arm] [RFC v4 5/8] memory: memory_region_find_by_name
From: |
Eric Auger |
Subject: |
[Qemu-arm] [RFC v4 5/8] memory: memory_region_find_by_name |
Date: |
Thu, 6 Oct 2016 11:41:27 +0000 |
This new helper makes possible to search for a MemoryRegion matching
a given name within a root MemoryRegion.
Signed-off-by: Eric Auger <address@hidden>
---
include/exec/memory.h | 11 +++++++++++
memory.c | 16 ++++++++++++++++
2 files changed, 27 insertions(+)
diff --git a/include/exec/memory.h b/include/exec/memory.h
index f97b1f4..f62e5b5 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -1217,6 +1217,17 @@ MemoryRegionSection memory_region_find(MemoryRegion *mr,
hwaddr addr, uint64_t size);
/**
+ * memory_region_find_by_name: Locates the first #MemoryRegion within @mr
+ * whose name matches @name
+ *
+ * @mr: the root MemoryRegion
+ * @name: name of the target MemoryRegion
+ *
+ * Returns the matched memory region or NULL
+ */
+MemoryRegion *memory_region_find_by_name(MemoryRegion *mr, const char *name);
+
+/**
* memory_global_dirty_log_sync: synchronize the dirty log for all memory
*
* Synchronizes the dirty page log for all address spaces.
diff --git a/memory.c b/memory.c
index 00a0ebe..3701b4f 100644
--- a/memory.c
+++ b/memory.c
@@ -2166,6 +2166,22 @@ MemoryRegionSection memory_region_find(MemoryRegion *mr,
return ret;
}
+MemoryRegion *memory_region_find_by_name(MemoryRegion *root,
+ const char *name)
+{
+ MemoryRegion *other;
+
+ QTAILQ_FOREACH(other, &root->subregions, subregions_link) {
+ if (!strcmp(other->name, name)) {
+ memory_region_ref(other);
+ return other;
+ } else {
+ memory_region_find_by_name(other, name);
+ }
+ }
+ return NULL;
+}
+
bool memory_region_present(MemoryRegion *container, hwaddr addr)
{
MemoryRegion *mr;
--
1.9.1
- [Qemu-arm] [RFC v4 0/8] KVM PCI/MSI passthrough with mach-virt, Eric Auger, 2016/10/06
- [Qemu-arm] [RFC v4 1/8] linux-headers: Partial update for MSI IOVA handling, Eric Auger, 2016/10/06
- [Qemu-arm] [RFC v4 2/8] hw: vfio: common: vfio_get_iommu_type1_info, Eric Auger, 2016/10/06
- [Qemu-arm] [RFC v4 3/8] hw: vfio: common: Introduce vfio_register_msi_iova, Eric Auger, 2016/10/06
- [Qemu-arm] [RFC v4 4/8] memory: Add reserved_iova region type, Eric Auger, 2016/10/06
- [Qemu-arm] [RFC v4 5/8] memory: memory_region_find_by_name,
Eric Auger <=
- [Qemu-arm] [RFC v4 6/8] hw: platform-bus: Enable to map any memory region onto the platform-bus, Eric Auger, 2016/10/06
- [Qemu-arm] [RFC v4 7/8] hw: vfio: common: vfio_prepare_msi_mapping, Eric Auger, 2016/10/06
- [Qemu-arm] [RFC v4 8/8] hw: vfio: common: Adapt vfio_listeners for reserved_iova region, Eric Auger, 2016/10/06
- Re: [Qemu-arm] [Qemu-devel] [RFC v4 0/8] KVM PCI/MSI passthrough with mach-virt, no-reply, 2016/10/10
- Re: [Qemu-arm] [Qemu-devel] [RFC v4 0/8] KVM PCI/MSI passthrough with mach-virt, no-reply, 2016/10/10