From: Wei Wang <wei.w.wang@intel.com>
To: virtio-dev@lists.oasis-open.org, kvm@vger.kernel.org,
qemu-devel@nongnu.org, linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org, linux-mm@kvack.org
Cc: Liang Li <liang.z.li@intel.com>, Wei Wang <wei.w.wang@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mgorman@techsingularity.net>,
"Michael S . Tsirkin" <mst@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Cornelia Huck <cornelia.huck@de.ibm.com>,
Amit Shah <amit.shah@redhat.com>,
Dave Hansen <dave.hansen@intel.com>,
Andrea Arcangeli <aarcange@redhat.com>,
David Hildenbrand <david@redhat.com>,
Liang Li <liliang324@gmail.com>
Subject: [PATCH v7 kernel 4/5] virtio-balloon: define flags and head for host request vq
Date: Fri, 3 Mar 2017 13:40:29 +0800 [thread overview]
Message-ID: <1488519630-89058-5-git-send-email-wei.w.wang@intel.com> (raw)
In-Reply-To: <1488519630-89058-1-git-send-email-wei.w.wang@intel.com>
From: Liang Li <liang.z.li@intel.com>
Define the flags and head struct for a new host request virtual
queue. Guest can get requests from host and then responds to
them on this new virtual queue.
Host can make use of this virtqueue to request the guest to do
some operations, e.g. drop page cache, synchronize file system,
etc. The hypervisor can get some of guest's runtime information
through this virtual queue too, e.g. the guest's unused page
information, which can be used for live migration optimization.
Signed-off-by: Liang Li <liang.z.li@intel.com>
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Amit Shah <amit.shah@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Liang Li <liliang324@gmail.com>
Cc: Wei Wang <wei.w.wang@intel.com>
---
include/uapi/linux/virtio_balloon.h | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/include/uapi/linux/virtio_balloon.h b/include/uapi/linux/virtio_balloon.h
index ed627b2..630b0ef 100644
--- a/include/uapi/linux/virtio_balloon.h
+++ b/include/uapi/linux/virtio_balloon.h
@@ -35,6 +35,7 @@
#define VIRTIO_BALLOON_F_STATS_VQ 1 /* Memory Stats virtqueue */
#define VIRTIO_BALLOON_F_DEFLATE_ON_OOM 2 /* Deflate balloon on OOM */
#define VIRTIO_BALLOON_F_CHUNK_TRANSFER 3 /* Transfer pages in chunks */
+#define VIRTIO_BALLOON_F_HOST_REQ_VQ 4 /* Host request virtqueue */
/* Size of a PFN in the balloon interface. */
#define VIRTIO_BALLOON_PFN_SHIFT 12
@@ -94,4 +95,25 @@ struct virtio_balloon_resp_hdr {
__le32 data_len; /* Payload len in bytes */
};
+enum virtio_balloon_req_id {
+ /* Get unused page information */
+ BALLOON_GET_UNUSED_PAGES,
+};
+
+enum virtio_balloon_flag {
+ /* Have more data for a request */
+ BALLOON_FLAG_CONT,
+ /* No more data for a request */
+ BALLOON_FLAG_DONE,
+};
+
+struct virtio_balloon_req_hdr {
+ /* Used to distinguish different requests */
+ __le16 cmd;
+ /* Reserved */
+ __le16 reserved[3];
+ /* Request parameter */
+ __le64 param;
+};
+
#endif /* _LINUX_VIRTIO_BALLOON_H */
--
2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Wei Wang <wei.w.wang@intel.com>
To: virtio-dev@lists.oasis-open.org, kvm@vger.kernel.org,
qemu-devel@nongnu.org, linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org, linux-mm@kvack.org
Cc: Liang Li <liang.z.li@intel.com>, Wei Wang <wei.w.wang@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mgorman@techsingularity.net>,
"Michael S . Tsirkin" <mst@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Cornelia Huck <cornelia.huck@de.ibm.com>,
Amit Shah <amit.shah@redhat.com>,
Dave Hansen <dave.hansen@intel.com>,
Andrea Arcangeli <aarcange@redhat.com>,
David Hildenbrand <david@redhat.com>,
Liang Li <liliang324@gmail.com>
Subject: [PATCH v7 kernel 4/5] virtio-balloon: define flags and head for host request vq
Date: Fri, 3 Mar 2017 13:40:29 +0800 [thread overview]
Message-ID: <1488519630-89058-5-git-send-email-wei.w.wang@intel.com> (raw)
In-Reply-To: <1488519630-89058-1-git-send-email-wei.w.wang@intel.com>
From: Liang Li <liang.z.li@intel.com>
Define the flags and head struct for a new host request virtual
queue. Guest can get requests from host and then responds to
them on this new virtual queue.
Host can make use of this virtqueue to request the guest to do
some operations, e.g. drop page cache, synchronize file system,
etc. The hypervisor can get some of guest's runtime information
through this virtual queue too, e.g. the guest's unused page
information, which can be used for live migration optimization.
Signed-off-by: Liang Li <liang.z.li@intel.com>
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Amit Shah <amit.shah@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Liang Li <liliang324@gmail.com>
Cc: Wei Wang <wei.w.wang@intel.com>
---
include/uapi/linux/virtio_balloon.h | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/include/uapi/linux/virtio_balloon.h b/include/uapi/linux/virtio_balloon.h
index ed627b2..630b0ef 100644
--- a/include/uapi/linux/virtio_balloon.h
+++ b/include/uapi/linux/virtio_balloon.h
@@ -35,6 +35,7 @@
#define VIRTIO_BALLOON_F_STATS_VQ 1 /* Memory Stats virtqueue */
#define VIRTIO_BALLOON_F_DEFLATE_ON_OOM 2 /* Deflate balloon on OOM */
#define VIRTIO_BALLOON_F_CHUNK_TRANSFER 3 /* Transfer pages in chunks */
+#define VIRTIO_BALLOON_F_HOST_REQ_VQ 4 /* Host request virtqueue */
/* Size of a PFN in the balloon interface. */
#define VIRTIO_BALLOON_PFN_SHIFT 12
@@ -94,4 +95,25 @@ struct virtio_balloon_resp_hdr {
__le32 data_len; /* Payload len in bytes */
};
+enum virtio_balloon_req_id {
+ /* Get unused page information */
+ BALLOON_GET_UNUSED_PAGES,
+};
+
+enum virtio_balloon_flag {
+ /* Have more data for a request */
+ BALLOON_FLAG_CONT,
+ /* No more data for a request */
+ BALLOON_FLAG_DONE,
+};
+
+struct virtio_balloon_req_hdr {
+ /* Used to distinguish different requests */
+ __le16 cmd;
+ /* Reserved */
+ __le16 reserved[3];
+ /* Request parameter */
+ __le64 param;
+};
+
#endif /* _LINUX_VIRTIO_BALLOON_H */
--
2.7.4
--
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WARNING: multiple messages have this Message-ID (diff)
From: Wei Wang <wei.w.wang@intel.com>
To: virtio-dev@lists.oasis-open.org, kvm@vger.kernel.org,
qemu-devel@nongnu.org, linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org, linux-mm@kvack.org
Cc: Liang Li <liang.z.li@intel.com>, Wei Wang <wei.w.wang@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mgorman@techsingularity.net>,
"Michael S . Tsirkin" <mst@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Cornelia Huck <cornelia.huck@de.ibm.com>,
Amit Shah <amit.shah@redhat.com>,
Dave Hansen <dave.hansen@intel.com>,
Andrea Arcangeli <aarcange@redhat.com>,
David Hildenbrand <david@redhat.com>,
Liang Li <liliang324@gmail.com>
Subject: [Qemu-devel] [PATCH v7 kernel 4/5] virtio-balloon: define flags and head for host request vq
Date: Fri, 3 Mar 2017 13:40:29 +0800 [thread overview]
Message-ID: <1488519630-89058-5-git-send-email-wei.w.wang@intel.com> (raw)
In-Reply-To: <1488519630-89058-1-git-send-email-wei.w.wang@intel.com>
From: Liang Li <liang.z.li@intel.com>
Define the flags and head struct for a new host request virtual
queue. Guest can get requests from host and then responds to
them on this new virtual queue.
Host can make use of this virtqueue to request the guest to do
some operations, e.g. drop page cache, synchronize file system,
etc. The hypervisor can get some of guest's runtime information
through this virtual queue too, e.g. the guest's unused page
information, which can be used for live migration optimization.
Signed-off-by: Liang Li <liang.z.li@intel.com>
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Amit Shah <amit.shah@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Liang Li <liliang324@gmail.com>
Cc: Wei Wang <wei.w.wang@intel.com>
---
include/uapi/linux/virtio_balloon.h | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/include/uapi/linux/virtio_balloon.h b/include/uapi/linux/virtio_balloon.h
index ed627b2..630b0ef 100644
--- a/include/uapi/linux/virtio_balloon.h
+++ b/include/uapi/linux/virtio_balloon.h
@@ -35,6 +35,7 @@
#define VIRTIO_BALLOON_F_STATS_VQ 1 /* Memory Stats virtqueue */
#define VIRTIO_BALLOON_F_DEFLATE_ON_OOM 2 /* Deflate balloon on OOM */
#define VIRTIO_BALLOON_F_CHUNK_TRANSFER 3 /* Transfer pages in chunks */
+#define VIRTIO_BALLOON_F_HOST_REQ_VQ 4 /* Host request virtqueue */
/* Size of a PFN in the balloon interface. */
#define VIRTIO_BALLOON_PFN_SHIFT 12
@@ -94,4 +95,25 @@ struct virtio_balloon_resp_hdr {
__le32 data_len; /* Payload len in bytes */
};
+enum virtio_balloon_req_id {
+ /* Get unused page information */
+ BALLOON_GET_UNUSED_PAGES,
+};
+
+enum virtio_balloon_flag {
+ /* Have more data for a request */
+ BALLOON_FLAG_CONT,
+ /* No more data for a request */
+ BALLOON_FLAG_DONE,
+};
+
+struct virtio_balloon_req_hdr {
+ /* Used to distinguish different requests */
+ __le16 cmd;
+ /* Reserved */
+ __le16 reserved[3];
+ /* Request parameter */
+ __le64 param;
+};
+
#endif /* _LINUX_VIRTIO_BALLOON_H */
--
2.7.4
next prev parent reply other threads:[~2017-03-03 5:47 UTC|newest]
Thread overview: 123+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-03 5:40 [PATCH v7 kernel 0/5] Extend virtio-balloon for fast (de)inflating & fast live migration Wei Wang
2017-03-03 5:40 ` [Qemu-devel] " Wei Wang
2017-03-03 5:40 ` Wei Wang
2017-03-03 5:40 ` [PATCH v7 kernel 1/5] virtio-balloon: rework deflate to add page to a list Wei Wang
2017-03-03 5:40 ` Wei Wang
2017-03-03 5:40 ` [Qemu-devel] " Wei Wang
2017-03-03 5:40 ` Wei Wang
2017-03-03 5:40 ` [PATCH v7 kernel 2/5] virtio-balloon: VIRTIO_BALLOON_F_CHUNK_TRANSFER Wei Wang
2017-03-03 5:40 ` [Qemu-devel] " Wei Wang
2017-03-03 5:40 ` Wei Wang
2017-03-08 4:01 ` Michael S. Tsirkin
2017-03-08 4:01 ` [Qemu-devel] " Michael S. Tsirkin
2017-03-08 4:01 ` Michael S. Tsirkin
2017-03-09 7:12 ` Wei Wang
2017-03-09 7:12 ` [Qemu-devel] " Wei Wang
2017-03-09 7:12 ` Wei Wang
2017-03-09 7:12 ` Wei Wang
2017-03-09 7:12 ` Wei Wang
2017-03-08 4:01 ` Michael S. Tsirkin
2017-03-03 5:40 ` Wei Wang
2017-03-03 5:40 ` [PATCH v7 kernel 3/5] virtio-balloon: implementation of VIRTIO_BALLOON_F_CHUNK_TRANSFER Wei Wang
2017-03-03 5:40 ` [Qemu-devel] " Wei Wang
2017-03-03 5:40 ` Wei Wang
2017-03-08 4:01 ` Michael S. Tsirkin
2017-03-08 4:01 ` Michael S. Tsirkin
2017-03-08 4:01 ` [Qemu-devel] " Michael S. Tsirkin
2017-03-08 4:01 ` Michael S. Tsirkin
2017-03-10 10:02 ` [virtio-dev] " Wei Wang
2017-03-10 10:02 ` [Qemu-devel] " Wei Wang
2017-03-10 10:02 ` Wei Wang
2017-03-10 10:02 ` Wei Wang
2017-03-10 13:26 ` [virtio-dev] " David Hildenbrand
2017-03-10 13:26 ` [Qemu-devel] " David Hildenbrand
2017-03-10 13:26 ` David Hildenbrand
2017-03-10 13:26 ` David Hildenbrand
2017-03-10 15:37 ` Michael S. Tsirkin
2017-03-10 15:37 ` [Qemu-devel] " Michael S. Tsirkin
2017-03-10 15:37 ` Michael S. Tsirkin
2017-03-10 15:37 ` Michael S. Tsirkin
2017-03-10 10:02 ` Wei Wang
2017-03-09 14:14 ` Matthew Wilcox
2017-03-09 14:14 ` [Qemu-devel] " Matthew Wilcox
2017-03-09 14:14 ` Matthew Wilcox
2017-03-10 11:37 ` Wei Wang
2017-03-10 11:37 ` Wei Wang
2017-03-10 11:37 ` [Qemu-devel] " Wei Wang
2017-03-10 11:37 ` Wei Wang
2017-03-10 15:58 ` Michael S. Tsirkin
2017-03-10 15:58 ` [Qemu-devel] " Michael S. Tsirkin
2017-03-10 15:58 ` Michael S. Tsirkin
2017-03-10 17:11 ` Matthew Wilcox
2017-03-10 17:11 ` [Qemu-devel] " Matthew Wilcox
2017-03-10 17:11 ` Matthew Wilcox
2017-03-10 19:10 ` Michael S. Tsirkin
2017-03-10 19:10 ` Michael S. Tsirkin
2017-03-10 19:10 ` [Qemu-devel] " Michael S. Tsirkin
2017-03-10 19:10 ` Michael S. Tsirkin
2017-03-10 21:18 ` Matthew Wilcox
2017-03-10 21:18 ` [Qemu-devel] " Matthew Wilcox
2017-03-10 21:18 ` Matthew Wilcox
2017-03-10 21:18 ` Matthew Wilcox
2017-03-10 19:35 ` Michael S. Tsirkin
2017-03-10 19:35 ` Michael S. Tsirkin
2017-03-10 19:35 ` [Qemu-devel] " Michael S. Tsirkin
2017-03-10 19:35 ` Michael S. Tsirkin
2017-03-10 21:25 ` Matthew Wilcox
2017-03-10 21:25 ` Matthew Wilcox
2017-03-10 21:25 ` [Qemu-devel] " Matthew Wilcox
2017-03-10 21:25 ` Matthew Wilcox
2017-03-12 0:05 ` Michael S. Tsirkin
2017-03-12 0:05 ` [Qemu-devel] " Michael S. Tsirkin
2017-03-12 0:05 ` Michael S. Tsirkin
2017-03-12 0:05 ` Michael S. Tsirkin
2017-03-11 11:59 ` Wei Wang
2017-03-11 11:59 ` [Qemu-devel] " Wei Wang
2017-03-11 11:59 ` Wei Wang
2017-03-11 14:09 ` Matthew Wilcox
2017-03-11 14:09 ` Matthew Wilcox
2017-03-11 14:09 ` [Qemu-devel] " Matthew Wilcox
2017-03-11 14:09 ` Matthew Wilcox
2017-03-12 1:59 ` Wang, Wei W
2017-03-12 1:59 ` Wang, Wei W
2017-03-12 1:59 ` [Qemu-devel] " Wang, Wei W
2017-03-12 1:59 ` Wang, Wei W
2017-03-12 1:59 ` Wang, Wei W
2017-03-12 4:04 ` Michael S. Tsirkin
2017-03-12 4:04 ` Michael S. Tsirkin
2017-03-12 4:04 ` [Qemu-devel] " Michael S. Tsirkin
2017-03-12 4:04 ` Michael S. Tsirkin
2017-03-12 4:04 ` Michael S. Tsirkin
2017-03-13 12:41 ` Wang, Wei W
2017-03-13 12:41 ` [Qemu-devel] " Wang, Wei W
2017-03-13 12:41 ` Wang, Wei W
2017-03-13 12:41 ` Wang, Wei W
2017-03-12 0:07 ` Michael S. Tsirkin
2017-03-12 0:07 ` Michael S. Tsirkin
2017-03-12 0:07 ` [Qemu-devel] " Michael S. Tsirkin
2017-03-12 0:07 ` Michael S. Tsirkin
2017-03-11 11:59 ` Wei Wang
2017-03-10 17:11 ` Matthew Wilcox
2017-03-10 15:58 ` Michael S. Tsirkin
2017-03-09 14:14 ` Matthew Wilcox
2017-03-03 5:40 ` Wei Wang
2017-03-03 5:40 ` [PATCH v7 kernel 4/5] virtio-balloon: define flags and head for host request vq Wei Wang
2017-03-03 5:40 ` Wei Wang [this message]
2017-03-03 5:40 ` [Qemu-devel] " Wei Wang
2017-03-03 5:40 ` Wei Wang
2017-03-08 4:02 ` Michael S. Tsirkin
2017-03-08 4:02 ` [Qemu-devel] " Michael S. Tsirkin
2017-03-08 4:02 ` Michael S. Tsirkin
2017-03-08 4:02 ` Michael S. Tsirkin
2017-03-03 5:40 ` [PATCH v7 kernel 5/5] This patch contains two parts: Wei Wang
2017-03-03 5:40 ` [Qemu-devel] " Wei Wang
2017-03-03 5:40 ` Wei Wang
2017-03-06 13:23 ` David Hildenbrand
2017-03-06 13:23 ` [Qemu-devel] " David Hildenbrand
2017-03-06 13:23 ` David Hildenbrand
2017-03-09 7:04 ` Wei Wang
2017-03-09 7:04 ` Wei Wang
2017-03-09 7:04 ` [Qemu-devel] " Wei Wang
2017-03-09 7:04 ` Wei Wang
2017-03-06 13:23 ` David Hildenbrand
2017-03-03 5:40 ` Wei Wang
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