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[PATCH v10 Kernel 2/5] vfio iommu: Adds flag to indicate dirty pages tra
From: |
Kirti Wankhede |
Subject: |
[PATCH v10 Kernel 2/5] vfio iommu: Adds flag to indicate dirty pages tracking capability support |
Date: |
Tue, 17 Dec 2019 01:51:37 +0530 |
Flag VFIO_IOMMU_INFO_DIRTY_PGS in VFIO_IOMMU_GET_INFO indicates that driver
support dirty pages tracking.
Signed-off-by: Kirti Wankhede <address@hidden>
Reviewed-by: Neo Jia <address@hidden>
---
drivers/vfio/vfio_iommu_type1.c | 3 ++-
include/uapi/linux/vfio.h | 5 +++--
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index 2ada8e6cdb88..3f6b04f2334f 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -2234,7 +2234,8 @@ static long vfio_iommu_type1_ioctl(void *iommu_data,
info.cap_offset = 0; /* output, no-recopy necessary */
}
- info.flags = VFIO_IOMMU_INFO_PGSIZES;
+ info.flags = VFIO_IOMMU_INFO_PGSIZES |
+ VFIO_IOMMU_INFO_DIRTY_PGS;
info.iova_pgsizes = vfio_pgsize_bitmap(iommu);
diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
index a0817ba267c1..81847ed54eb7 100644
--- a/include/uapi/linux/vfio.h
+++ b/include/uapi/linux/vfio.h
@@ -900,8 +900,9 @@ struct vfio_device_ioeventfd {
struct vfio_iommu_type1_info {
__u32 argsz;
__u32 flags;
-#define VFIO_IOMMU_INFO_PGSIZES (1 << 0) /* supported page sizes info */
-#define VFIO_IOMMU_INFO_CAPS (1 << 1) /* Info supports caps */
+#define VFIO_IOMMU_INFO_PGSIZES (1 << 0) /* supported page sizes info */
+#define VFIO_IOMMU_INFO_CAPS (1 << 1) /* Info supports caps */
+#define VFIO_IOMMU_INFO_DIRTY_PGS (1 << 2) /* supports dirty page tracking */
__u64 iova_pgsizes; /* Bitmap of supported page sizes */
__u32 cap_offset; /* Offset within info struct of first cap */
};
--
2.7.0
- [PATCH v10 Kernel 0/5] KABIs to support migration for VFIO devices, Kirti Wankhede, 2019/12/16
- [PATCH v10 Kernel 1/5] vfio: KABI for migration interface for device state, Kirti Wankhede, 2019/12/16
- Re: [PATCH v10 Kernel 1/5] vfio: KABI for migration interface for device state, Alex Williamson, 2019/12/16
- Re: [PATCH v10 Kernel 1/5] vfio: KABI for migration interface for device state, Kirti Wankhede, 2019/12/17
- Re: [PATCH v10 Kernel 1/5] vfio: KABI for migration interface for device state, Yan Zhao, 2019/12/17
- Re: [PATCH v10 Kernel 1/5] vfio: KABI for migration interface for device state, Alex Williamson, 2019/12/17
- Re: [PATCH v10 Kernel 1/5] vfio: KABI for migration interface for device state, Kirti Wankhede, 2019/12/19
- Re: [PATCH v10 Kernel 1/5] vfio: KABI for migration interface for device state, Alex Williamson, 2019/12/19
- Re: [PATCH v10 Kernel 1/5] vfio: KABI for migration interface for device state, Kirti Wankhede, 2019/12/19
- Re: [PATCH v10 Kernel 1/5] vfio: KABI for migration interface for device state, Alex Williamson, 2019/12/19
[PATCH v10 Kernel 2/5] vfio iommu: Adds flag to indicate dirty pages tracking capability support,
Kirti Wankhede <=
[PATCH v10 Kernel 3/5] vfio iommu: Add ioctl defination for dirty pages tracking., Kirti Wankhede, 2019/12/16
[PATCH v10 Kernel 4/5] vfio iommu: Implementation of ioctl to for dirty pages tracking., Kirti Wankhede, 2019/12/16
- Re: [PATCH v10 Kernel 4/5] vfio iommu: Implementation of ioctl to for dirty pages tracking., Yan Zhao, 2019/12/17
- Re: [PATCH v10 Kernel 4/5] vfio iommu: Implementation of ioctl to for dirty pages tracking., Kirti Wankhede, 2019/12/17
- Re: [PATCH v10 Kernel 4/5] vfio iommu: Implementation of ioctl to for dirty pages tracking., Yan Zhao, 2019/12/17
- Re: [PATCH v10 Kernel 4/5] vfio iommu: Implementation of ioctl to for dirty pages tracking., Kirti Wankhede, 2019/12/17
- Re: [PATCH v10 Kernel 4/5] vfio iommu: Implementation of ioctl to for dirty pages tracking., Yan Zhao, 2019/12/17
- Re: [PATCH v10 Kernel 4/5] vfio iommu: Implementation of ioctl to for dirty pages tracking., Dr. David Alan Gilbert, 2019/12/18