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From: Bharat Bhushan <bbhushan2@marvell.com>
To: <peter.maydell@linaro.org>, <peterx@redhat.com>,
	<eric.auger.pro@gmail.com>, <alex.williamson@redhat.com>,
	<kevin.tian@intel.com>, <mst@redhat.com>, <tnowicki@marvell.com>,
	<drjones@redhat.com>, <linuc.decode@gmail.com>,
	<qemu-devel@nongnu.org>, <qemu-arm@nongnu.org>,
	<bharatb.linux@gmail.com>, <jean-philippe@linaro.org>,
	<yang.zhong@intel.com>
Cc: Bharat Bhushan <bbhushan2@marvell.com>
Subject: [PATCH v9 2/9] memory: Add interface to set iommu page size mask
Date: Mon, 23 Mar 2020 14:16:10 +0530
Message-ID: <20200323084617.1782-3-bbhushan2@marvell.com> (raw)
In-Reply-To: <20200323084617.1782-1-bbhushan2@marvell.com>

Allow to set page size mask to be supported by iommu.
This is required to expose page size mask compatible with
host with virtio-iommu.

Signed-off-by: Bharat Bhushan <bbhushan2@marvell.com>
---
 include/exec/memory.h | 20 ++++++++++++++++++++
 memory.c              | 10 ++++++++++
 2 files changed, 30 insertions(+)

diff --git a/include/exec/memory.h b/include/exec/memory.h
index e85b7de99a..063c424854 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -355,6 +355,16 @@ typedef struct IOMMUMemoryRegionClass {
      * @iommu: the IOMMUMemoryRegion
      */
     int (*num_indexes)(IOMMUMemoryRegion *iommu);
+
+    /*
+     * Set supported IOMMU page size
+     *
+     * Optional method: if this is supported then set page size that
+     * can be supported by IOMMU. This is called to set supported page
+     * size as per host Linux.
+     */
+     void (*iommu_set_page_size_mask)(IOMMUMemoryRegion *iommu,
+                                      uint64_t page_size_mask);
 } IOMMUMemoryRegionClass;
 
 typedef struct CoalescedMemoryRange CoalescedMemoryRange;
@@ -1363,6 +1373,16 @@ int memory_region_iommu_attrs_to_index(IOMMUMemoryRegion *iommu_mr,
  */
 int memory_region_iommu_num_indexes(IOMMUMemoryRegion *iommu_mr);
 
+/**
+ * memory_region_iommu_set_page_size_mask: set the supported pages
+ * size by iommu.
+ *
+ * @iommu_mr: the memory region
+ * @page_size_mask: supported page size mask
+ */
+void memory_region_iommu_set_page_size_mask(IOMMUMemoryRegion *iommu_mr,
+                                            uint64_t page_size_mask);
+
 /**
  * memory_region_name: get a memory region's name
  *
diff --git a/memory.c b/memory.c
index aeaa8dcc9e..14c8783084 100644
--- a/memory.c
+++ b/memory.c
@@ -1833,6 +1833,16 @@ static int memory_region_update_iommu_notify_flags(IOMMUMemoryRegion *iommu_mr,
     return ret;
 }
 
+void memory_region_iommu_set_page_size_mask(IOMMUMemoryRegion *iommu_mr,
+                                            uint64_t page_size_mask)
+{
+    IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr);
+
+    if (imrc->iommu_set_page_size_mask) {
+        imrc->iommu_set_page_size_mask(iommu_mr, page_size_mask);
+    }
+}
+
 int memory_region_register_iommu_notifier(MemoryRegion *mr,
                                           IOMMUNotifier *n, Error **errp)
 {
-- 
2.17.1



  parent reply index

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-23  8:46 [PATCH v9 0/9] virtio-iommu: VFIO integration Bharat Bhushan
2020-03-23  8:46 ` [PATCH v9 1/9] hw/vfio/common: Remove error print on mmio region translation by viommu Bharat Bhushan
2020-03-23 23:08   ` Alex Williamson
2020-03-26 17:35     ` Auger Eric
2020-03-26 17:53       ` Alex Williamson
2020-03-27  5:50         ` [EXT] " Bharat Bhushan
2020-04-02  9:01         ` Bharat Bhushan
2020-04-24 14:17           ` Auger Eric
2020-05-05  9:25             ` Bharat Bhushan
2020-05-05  9:30               ` Auger Eric
2020-05-05  9:46                 ` Bharat Bhushan
2020-05-05 10:18                   ` Bharat Bhushan
2020-05-05 12:05                     ` Auger Eric
2020-05-07 14:40                     ` Auger Eric
2020-03-23  8:46 ` Bharat Bhushan [this message]
2020-03-26 16:06   ` [PATCH v9 2/9] memory: Add interface to set iommu page size mask Auger Eric
2020-03-27  5:33     ` [EXT] " Bharat Bhushan
2020-03-27  8:27       ` Auger Eric
2020-03-23  8:46 ` [PATCH v9 3/9] vfio: set iommu page size as per host supported page size Bharat Bhushan
2020-03-23  8:46 ` [PATCH v9 4/9] virtio-iommu: set supported page size mask Bharat Bhushan
2020-03-26 15:51   ` Auger Eric
2020-03-27  5:13     ` [EXT] " Bharat Bhushan
2020-03-27  8:28       ` Auger Eric
2020-03-23  8:46 ` [PATCH v9 5/9] virtio-iommu: Add iommu notifier for map/unmap Bharat Bhushan
2020-03-23  8:46 ` [PATCH v9 6/9] virtio-iommu: Call iommu notifier for attach/detach Bharat Bhushan
2020-03-23  8:46 ` [PATCH v9 7/9] virtio-iommu: add iommu replay Bharat Bhushan
2020-03-23  8:46 ` [PATCH v9 8/9] virtio-iommu: Implement probe request Bharat Bhushan
2020-03-26 15:48   ` Auger Eric
2020-03-27  5:40     ` [EXT] " Bharat Bhushan
2020-03-27  8:34       ` Auger Eric
2020-04-23 16:09   ` Jean-Philippe Brucker
2020-04-24 13:51     ` Auger Eric
2020-05-05  9:06       ` Bharat Bhushan
2020-05-07 14:42         ` Auger Eric
2020-03-23  8:46 ` [PATCH v9 9/9] virtio-iommu: add iommu notifier memory-region Bharat Bhushan
2020-03-23  9:52 ` [PATCH v9 0/9] virtio-iommu: VFIO integration no-reply
2020-03-23  9:59 ` no-reply

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