From: Kirti Wankhede <kwankhede@nvidia.com>
To: <alex.williamson@redhat.com>, <cjia@nvidia.com>
Cc: Zhengxiao.zx@Alibaba-inc.com, kevin.tian@intel.com,
yi.l.liu@intel.com, yan.y.zhao@intel.com, kvm@vger.kernel.org,
eskultet@redhat.com, ziye.yang@intel.com, qemu-devel@nongnu.org,
cohuck@redhat.com, shuangtai.tst@alibaba-inc.com,
dgilbert@redhat.com, zhi.a.wang@intel.com, mlevitsk@redhat.com,
pasic@linux.ibm.com, aik@ozlabs.ru,
Kirti Wankhede <kwankhede@nvidia.com>,
eauger@redhat.com, felipe@nutanix.com,
jonathan.davies@nutanix.com, changpeng.liu@intel.com,
Ken.Xue@amd.com
Subject: [PATCH v12 Kernel 6/7] vfio iommu: Adds flag to indicate dirty pages tracking capability support
Date: Sat, 8 Feb 2020 01:12:33 +0530 [thread overview]
Message-ID: <1581104554-10704-7-git-send-email-kwankhede@nvidia.com> (raw)
In-Reply-To: <1581104554-10704-1-git-send-email-kwankhede@nvidia.com>
Flag VFIO_IOMMU_INFO_DIRTY_PGS in VFIO_IOMMU_GET_INFO indicates that driver
support dirty pages tracking.
Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
Reviewed-by: Neo Jia <cjia@nvidia.com>
---
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 4e6ad0513932..f748a3dbe9f9 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -2426,7 +2426,8 @@ 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 a852e729b5a2..8528e835541d 100644
--- a/include/uapi/linux/vfio.h
+++ b/include/uapi/linux/vfio.h
@@ -928,8 +928,9 @@ 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
next prev parent reply other threads:[~2020-02-07 20:19 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-07 19:42 [PATCH v12 Kernel 0/7] KABIs to support migration for VFIO devices Kirti Wankhede
2020-02-07 19:42 ` [PATCH v12 Kernel 1/7] vfio: KABI for migration interface for device state Kirti Wankhede
2020-02-10 17:25 ` Alex Williamson
2020-02-12 20:56 ` Kirti Wankhede
2020-02-14 10:21 ` Cornelia Huck
2020-02-27 8:58 ` Yan Zhao
2020-02-07 19:42 ` [PATCH v12 Kernel 2/7] vfio iommu: Remove atomicity of ref_count of pinned pages Kirti Wankhede
2020-02-07 19:42 ` [PATCH v12 Kernel 3/7] vfio iommu: Add ioctl definition for dirty pages tracking Kirti Wankhede
2020-02-07 19:42 ` [PATCH v12 Kernel 4/7] vfio iommu: Implementation of ioctl to " Kirti Wankhede
2020-02-10 9:49 ` Yan Zhao
2020-02-10 19:44 ` Alex Williamson
2020-02-11 2:52 ` Yan Zhao
2020-02-11 3:45 ` Alex Williamson
2020-02-11 4:11 ` Yan Zhao
2020-02-10 17:25 ` Alex Williamson
2020-02-12 20:56 ` Kirti Wankhede
2020-02-12 23:13 ` Alex Williamson
2020-02-13 20:11 ` Kirti Wankhede
2020-02-13 23:20 ` Alex Williamson
2020-02-17 19:13 ` Kirti Wankhede
2020-02-17 20:55 ` Alex Williamson
2020-02-18 5:58 ` Kirti Wankhede
2020-02-18 21:41 ` Alex Williamson
2020-02-19 4:21 ` Kirti Wankhede
2020-02-19 4:53 ` Alex Williamson
2020-02-07 19:42 ` [PATCH v12 Kernel 5/7] vfio iommu: Update UNMAP_DMA ioctl to get dirty bitmap before unmap Kirti Wankhede
2020-02-10 17:48 ` Alex Williamson
2020-02-07 19:42 ` Kirti Wankhede [this message]
2020-02-07 19:42 ` [PATCH v12 Kernel 7/7] vfio: Selective dirty page tracking if IOMMU backed device pins pages Kirti Wankhede
2020-02-10 18:14 ` Alex Williamson
2020-03-09 7:46 ` [PATCH v12 Kernel 0/7] KABIs to support migration for VFIO devices Zengtao (B)
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1581104554-10704-7-git-send-email-kwankhede@nvidia.com \
--to=kwankhede@nvidia.com \
--cc=Ken.Xue@amd.com \
--cc=Zhengxiao.zx@Alibaba-inc.com \
--cc=aik@ozlabs.ru \
--cc=alex.williamson@redhat.com \
--cc=changpeng.liu@intel.com \
--cc=cjia@nvidia.com \
--cc=cohuck@redhat.com \
--cc=dgilbert@redhat.com \
--cc=eauger@redhat.com \
--cc=eskultet@redhat.com \
--cc=felipe@nutanix.com \
--cc=jonathan.davies@nutanix.com \
--cc=kevin.tian@intel.com \
--cc=kvm@vger.kernel.org \
--cc=mlevitsk@redhat.com \
--cc=pasic@linux.ibm.com \
--cc=qemu-devel@nongnu.org \
--cc=shuangtai.tst@alibaba-inc.com \
--cc=yan.y.zhao@intel.com \
--cc=yi.l.liu@intel.com \
--cc=zhi.a.wang@intel.com \
--cc=ziye.yang@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).