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[Qemu-devel] [RFC PATCH 10/13] memory: add MemoryRegionIOMMUOps.replay()
From: |
Peter Xu |
Subject: |
[Qemu-devel] [RFC PATCH 10/13] memory: add MemoryRegionIOMMUOps.replay() callback |
Date: |
Tue, 6 Dec 2016 18:36:25 +0800 |
Originally we have one memory_region_iommu_replay() function, which is
the default behavior to replay the translations of the whole IOMMU
region. However, on some platform like x86, we may want our own replay
logic for IOMMU regions. This patch add one more hook for IOMMUOps for
the callback, and it'll override the default if set.
Signed-off-by: Peter Xu <address@hidden>
---
include/exec/memory.h | 2 ++
memory.c | 6 ++++++
2 files changed, 8 insertions(+)
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 9902e9e..6bdd12c 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -183,6 +183,8 @@ struct MemoryRegionIOMMUOps {
void (*notify_flag_changed)(MemoryRegion *iommu,
IOMMUNotifierFlag old_flags,
IOMMUNotifierFlag new_flags);
+ /* Set this up to provide customized IOMMU replay function */
+ void (*replay)(MemoryRegion *iommu, IOMMUNotifier *notifier);
};
typedef struct CoalescedMemoryRange CoalescedMemoryRange;
diff --git a/memory.c b/memory.c
index 84c91fa..9ad6319 100644
--- a/memory.c
+++ b/memory.c
@@ -1624,6 +1624,12 @@ void memory_region_iommu_replay(MemoryRegion *mr,
IOMMUNotifier *n,
hwaddr addr, granularity;
IOMMUTLBEntry iotlb;
+ /* If the IOMMU has its own replay callback, override */
+ if (mr->iommu_ops->replay) {
+ mr->iommu_ops->replay(mr, n);
+ return;
+ }
+
granularity = memory_region_iommu_get_min_page_size(mr);
for (addr = 0; addr < memory_region_size(mr); addr += granularity) {
--
2.7.4
- [Qemu-devel] [RFC PATCH 02/13] intel_iommu: simplify irq region translation, (continued)
- [Qemu-devel] [RFC PATCH 02/13] intel_iommu: simplify irq region translation, Peter Xu, 2016/12/06
- [Qemu-devel] [RFC PATCH 03/13] intel_iommu: renaming gpa to iova where proper, Peter Xu, 2016/12/06
- [Qemu-devel] [RFC PATCH 05/13] intel_iommu: fix trace for addr translation, Peter Xu, 2016/12/06
- [Qemu-devel] [RFC PATCH 04/13] intel_iommu: fix trace for inv desc handling, Peter Xu, 2016/12/06
- [Qemu-devel] [RFC PATCH 06/13] intel_iommu: vtd_slpt_level_shift check level, Peter Xu, 2016/12/06
- [Qemu-devel] [RFC PATCH 07/13] memory: add section range info for IOMMU notifier, Peter Xu, 2016/12/06
- [Qemu-devel] [RFC PATCH 08/13] memory: provide iommu_replay_all(), Peter Xu, 2016/12/06
- [Qemu-devel] [RFC PATCH 09/13] memory: introduce memory_region_notify_one(), Peter Xu, 2016/12/06
- [Qemu-devel] [RFC PATCH 10/13] memory: add MemoryRegionIOMMUOps.replay() callback,
Peter Xu <=
- [Qemu-devel] [RFC PATCH 11/13] intel_iommu: provide its own replay() callback, Peter Xu, 2016/12/06
- [Qemu-devel] [RFC PATCH 12/13] intel_iommu: do replay when context invalidate, Peter Xu, 2016/12/06
- [Qemu-devel] [RFC PATCH 13/13] intel_iommu: use page_walk for iotlb inv notify, Peter Xu, 2016/12/06
- Re: [Qemu-devel] [RFC PATCH 00/13] VT-d replay and misc cleanup, Peter Xu, 2016/12/06
- Re: [Qemu-devel] [RFC PATCH 00/13] VT-d replay and misc cleanup, Peter Xu, 2016/12/13
- Re: [Qemu-devel] [RFC PATCH 00/13] VT-d replay and misc cleanup, Liu, Yi L, 2016/12/19