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[Qemu-devel] [PATCH RFC v2 13/17] memory: add MemoryRegionIOMMUOps.repla
From: |
Peter Xu |
Subject: |
[Qemu-devel] [PATCH RFC v2 13/17] memory: add MemoryRegionIOMMUOps.replay() callback |
Date: |
Tue, 3 Jan 2017 15:29:50 +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 afe150c..a26763f 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -181,6 +181,8 @@ 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 6e4c872..609ac67 100644
--- a/memory.c
+++ b/memory.c
@@ -1629,6 +1629,12 @@ 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] [PATCH RFC v2 02/17] memory: handle alias for iommu notifier, (continued)
- [Qemu-devel] [PATCH RFC v2 02/17] memory: handle alias for iommu notifier, Peter Xu, 2017/01/03
- [Qemu-devel] [PATCH RFC v2 04/17] intel_iommu: allocate new key when creating new address space, Peter Xu, 2017/01/03
- [Qemu-devel] [PATCH RFC v2 03/17] memory: handle alias in memory_region_is_iommu(), Peter Xu, 2017/01/03
- [Qemu-devel] [PATCH RFC v2 05/17] intel_iommu: simplify irq region translation, Peter Xu, 2017/01/03
- [Qemu-devel] [PATCH RFC v2 06/17] intel_iommu: renaming gpa to iova where proper, Peter Xu, 2017/01/03
- [Qemu-devel] [PATCH RFC v2 07/17] intel_iommu: fix trace for inv desc handling, Peter Xu, 2017/01/03
- [Qemu-devel] [PATCH RFC v2 08/17] intel_iommu: fix trace for addr translation, Peter Xu, 2017/01/03
- [Qemu-devel] [PATCH RFC v2 09/17] intel_iommu: vtd_slpt_level_shift check level, Peter Xu, 2017/01/03
- [Qemu-devel] [PATCH RFC v2 10/17] memory: add section range info for IOMMU notifier, Peter Xu, 2017/01/03
- [Qemu-devel] [PATCH RFC v2 11/17] memory: provide iommu_replay_all(), Peter Xu, 2017/01/03
- [Qemu-devel] [PATCH RFC v2 13/17] memory: add MemoryRegionIOMMUOps.replay() callback,
Peter Xu <=
- [Qemu-devel] [PATCH RFC v2 12/17] memory: introduce memory_region_notify_one(), Peter Xu, 2017/01/03
- [Qemu-devel] [PATCH RFC v2 14/17] intel_iommu: provide its own replay() callback, Peter Xu, 2017/01/03
- [Qemu-devel] [PATCH RFC v2 15/17] intel_iommu: do replay when context invalidate, Peter Xu, 2017/01/03
- [Qemu-devel] [PATCH RFC v2 16/17] intel_iommu: allow dynamic switch of IOMMU region, Peter Xu, 2017/01/03
- [Qemu-devel] [PATCH RFC v2 17/17] intel_iommu: enable vfio devices, Peter Xu, 2017/01/03
- Re: [Qemu-devel] [PATCH RFC v2 00/17] VT-d: vfio enablement and misc enhances, no-reply, 2017/01/03
- Re: [Qemu-devel] [PATCH RFC v2 00/17] VT-d: vfio enablement and misc enhances, Michael S. Tsirkin, 2017/01/12