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[Qemu-devel] [RFC PATCH 11/20] intel_iommu: provide iommu_ops->record_de
From: |
Liu, Yi L |
Subject: |
[Qemu-devel] [RFC PATCH 11/20] intel_iommu: provide iommu_ops->record_device |
Date: |
Wed, 26 Apr 2017 18:06:41 +0800 |
This patch provides iommu_ops->record_device implementation for
intel_iommu. It records the host sid in the IntelIOMMUNotifierNode for
further virtualization usage. e.g. guest sid -> host sid translation
during propagating 1st level cache invalidation from guest to host.
Signed-off-by: Liu, Yi L <address@hidden>
---
hw/i386/intel_iommu.c | 19 +++++++++++++++++++
include/hw/i386/intel_iommu.h | 1 +
2 files changed, 20 insertions(+)
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index ba1e7eb..0c412d2 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -2407,6 +2407,24 @@ static void vtd_iommu_notify_flag_changed(MemoryRegion
*iommu,
}
}
+static void vtd_iommu_record_device(MemoryRegion *iommu,
+ void *device_info)
+{
+ VTDAddressSpace *vtd_as = container_of(iommu, VTDAddressSpace, iommu);
+ IntelIOMMUState *s = vtd_as->iommu_state;
+ IntelIOMMUNotifierNode *node = NULL;
+ IntelIOMMUNotifierNode *next_node = NULL;
+ PCIHostDeviceAddress *host = (PCIHostDeviceAddress *) device_info;
+
+ QLIST_FOREACH_SAFE(node, &s->notifiers_list, next, next_node) {
+ if (node->vtd_as == vtd_as) {
+ node->host_sid = ((host->bus & 0xffUL) << 8)
+ | ((host->slot & 0x1f) << 3)
+ | (host->function & 0x7);
+ }
+ }
+}
+
static const VMStateDescription vtd_vmstate = {
.name = "iommu-intel",
.version_id = 1,
@@ -2940,6 +2958,7 @@ static void vtd_init(IntelIOMMUState *s)
s->iommu_ops.translate = vtd_iommu_translate;
s->iommu_ops.notify_flag_changed = vtd_iommu_notify_flag_changed;
s->iommu_ops.replay = vtd_iommu_replay;
+ s->iommu_ops.record_device = vtd_iommu_record_device;
s->root = 0;
s->root_extended = false;
s->dmar_enabled = false;
diff --git a/include/hw/i386/intel_iommu.h b/include/hw/i386/intel_iommu.h
index 8981615..a4ce5c3 100644
--- a/include/hw/i386/intel_iommu.h
+++ b/include/hw/i386/intel_iommu.h
@@ -252,6 +252,7 @@ struct VTD_MSIMessage {
struct IntelIOMMUNotifierNode {
VTDAddressSpace *vtd_as;
+ uint16_t host_sid;
QLIST_ENTRY(IntelIOMMUNotifierNode) next;
};
--
1.9.1
- [Qemu-devel] [RFC PATCH 03/20] intel_iommu: add "svm" option, (continued)
- [Qemu-devel] [RFC PATCH 03/20] intel_iommu: add "svm" option, Liu, Yi L, 2017/04/26
- [Qemu-devel] [RFC PATCH 04/20] Memory: modify parameter in IOMMUNotifier func, Liu, Yi L, 2017/04/26
- [Qemu-devel] [RFC PATCH 05/20] VFIO: add new IOCTL for svm bind tasks, Liu, Yi L, 2017/04/26
- [Qemu-devel] [RFC PATCH 06/20] VFIO: add new notifier for binding PASID table, Liu, Yi L, 2017/04/26
- [Qemu-devel] [RFC PATCH 07/20] VFIO: check notifier flag in region_del(), Liu, Yi L, 2017/04/26
- [Qemu-devel] [RFC PATCH 08/20] Memory: add notifier flag check in memory_replay(), Liu, Yi L, 2017/04/26
- [Qemu-devel] [RFC PATCH 09/20] Memory: introduce iommu_ops->record_device, Liu, Yi L, 2017/04/26
- [Qemu-devel] [RFC PATCH 10/20] VFIO: notify vIOMMU emulator when device is assigned, Liu, Yi L, 2017/04/26
- [Qemu-devel] [RFC PATCH 11/20] intel_iommu: provide iommu_ops->record_device,
Liu, Yi L <=
- [Qemu-devel] [RFC PATCH 12/20] Memory: Add func to fire pasidt_bind notifier, Liu, Yi L, 2017/04/26
- Re: [Qemu-devel] [RFC PATCH 12/20] Memory: Add func to fire pasidt_bind notifier, Paolo Bonzini, 2017/04/26
- Re: [Qemu-devel] [RFC PATCH 12/20] Memory: Add func to fire pasidt_bind notifier, Liu, Yi L, 2017/04/26
- Re: [Qemu-devel] [RFC PATCH 12/20] Memory: Add func to fire pasidt_bind notifier, Peter Xu, 2017/04/27
- Re: [Qemu-devel] [RFC PATCH 12/20] Memory: Add func to fire pasidt_bind notifier, Peter Xu, 2017/04/27
- Re: [Qemu-devel] [RFC PATCH 12/20] Memory: Add func to fire pasidt_bind notifier, Liu, Yi L, 2017/04/27
- Re: [Qemu-devel] [RFC PATCH 12/20] Memory: Add func to fire pasidt_bind notifier, Peter Xu, 2017/04/27
[Qemu-devel] [RFC PATCH 13/20] IOMMU: add pasid_table_info for guest pasid table, Liu, Yi L, 2017/04/26
[Qemu-devel] [RFC PATCH 14/20] intel_iommu: add FOR_EACH_ASSIGN_DEVICE macro, Liu, Yi L, 2017/04/26