From: Stefano Stabellini <sstabellini@kernel.org>
To: xen-devel@lists.xen.org
Cc: linux-kernel@vger.kernel.org, sstabellini@kernel.org,
jgross@suse.com, boris.ostrovsky@oracle.com,
Stefano Stabellini <stefano@aporeto.com>,
konrad.wilk@oracle.com
Subject: [PATCH v6 01/18] xen: introduce the pvcalls interface header
Date: Mon, 3 Jul 2017 14:08:22 -0700 [thread overview]
Message-ID: <1499116119-15638-1-git-send-email-sstabellini@kernel.org> (raw)
In-Reply-To: <alpine.DEB.2.10.1707031404400.2919@sstabellini-ThinkPad-X260>
Introduce the C header file which defines the PV Calls interface. It is
imported from xen/include/public/io/pvcalls.h.
Signed-off-by: Stefano Stabellini <stefano@aporeto.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
CC: konrad.wilk@oracle.com
CC: boris.ostrovsky@oracle.com
CC: jgross@suse.com
---
include/xen/interface/io/pvcalls.h | 121 +++++++++++++++++++++++++++++++++++++
include/xen/interface/io/ring.h | 2 +
2 files changed, 123 insertions(+)
create mode 100644 include/xen/interface/io/pvcalls.h
diff --git a/include/xen/interface/io/pvcalls.h b/include/xen/interface/io/pvcalls.h
new file mode 100644
index 0000000..ccf97b8
--- /dev/null
+++ b/include/xen/interface/io/pvcalls.h
@@ -0,0 +1,121 @@
+#ifndef __XEN_PUBLIC_IO_XEN_PVCALLS_H__
+#define __XEN_PUBLIC_IO_XEN_PVCALLS_H__
+
+#include <linux/net.h>
+#include <xen/interface/io/ring.h>
+#include <xen/interface/grant_table.h>
+
+/* "1" means socket, connect, release, bind, listen, accept and poll */
+#define XENBUS_FUNCTIONS_CALLS "1"
+
+/*
+ * See docs/misc/pvcalls.markdown in xen.git for the full specification:
+ * https://xenbits.xen.org/docs/unstable/misc/pvcalls.html
+ */
+struct pvcalls_data_intf {
+ RING_IDX in_cons, in_prod, in_error;
+
+ uint8_t pad1[52];
+
+ RING_IDX out_cons, out_prod, out_error;
+
+ uint8_t pad2[52];
+
+ RING_IDX ring_order;
+ grant_ref_t ref[];
+};
+DEFINE_XEN_FLEX_RING(pvcalls);
+
+#define PVCALLS_SOCKET 0
+#define PVCALLS_CONNECT 1
+#define PVCALLS_RELEASE 2
+#define PVCALLS_BIND 3
+#define PVCALLS_LISTEN 4
+#define PVCALLS_ACCEPT 5
+#define PVCALLS_POLL 6
+
+struct xen_pvcalls_request {
+ uint32_t req_id; /* private to guest, echoed in response */
+ uint32_t cmd; /* command to execute */
+ union {
+ struct xen_pvcalls_socket {
+ uint64_t id;
+ uint32_t domain;
+ uint32_t type;
+ uint32_t protocol;
+ } socket;
+ struct xen_pvcalls_connect {
+ uint64_t id;
+ uint8_t addr[28];
+ uint32_t len;
+ uint32_t flags;
+ grant_ref_t ref;
+ uint32_t evtchn;
+ } connect;
+ struct xen_pvcalls_release {
+ uint64_t id;
+ uint8_t reuse;
+ } release;
+ struct xen_pvcalls_bind {
+ uint64_t id;
+ uint8_t addr[28];
+ uint32_t len;
+ } bind;
+ struct xen_pvcalls_listen {
+ uint64_t id;
+ uint32_t backlog;
+ } listen;
+ struct xen_pvcalls_accept {
+ uint64_t id;
+ uint64_t id_new;
+ grant_ref_t ref;
+ uint32_t evtchn;
+ } accept;
+ struct xen_pvcalls_poll {
+ uint64_t id;
+ } poll;
+ /* dummy member to force sizeof(struct xen_pvcalls_request)
+ * to match across archs */
+ struct xen_pvcalls_dummy {
+ uint8_t dummy[56];
+ } dummy;
+ } u;
+};
+
+struct xen_pvcalls_response {
+ uint32_t req_id;
+ uint32_t cmd;
+ int32_t ret;
+ uint32_t pad;
+ union {
+ struct _xen_pvcalls_socket {
+ uint64_t id;
+ } socket;
+ struct _xen_pvcalls_connect {
+ uint64_t id;
+ } connect;
+ struct _xen_pvcalls_release {
+ uint64_t id;
+ } release;
+ struct _xen_pvcalls_bind {
+ uint64_t id;
+ } bind;
+ struct _xen_pvcalls_listen {
+ uint64_t id;
+ } listen;
+ struct _xen_pvcalls_accept {
+ uint64_t id;
+ } accept;
+ struct _xen_pvcalls_poll {
+ uint64_t id;
+ } poll;
+ struct _xen_pvcalls_dummy {
+ uint8_t dummy[8];
+ } dummy;
+ } u;
+};
+
+DEFINE_RING_TYPES(xen_pvcalls, struct xen_pvcalls_request,
+ struct xen_pvcalls_response);
+
+#endif
diff --git a/include/xen/interface/io/ring.h b/include/xen/interface/io/ring.h
index c794568..e547088 100644
--- a/include/xen/interface/io/ring.h
+++ b/include/xen/interface/io/ring.h
@@ -9,6 +9,8 @@
#ifndef __XEN_PUBLIC_IO_RING_H__
#define __XEN_PUBLIC_IO_RING_H__
+#include <xen/interface/grant_table.h>
+
typedef unsigned int RING_IDX;
/* Round a 32-bit unsigned constant down to the nearest power of two. */
--
1.9.1
next prev parent reply other threads:[~2017-07-03 21:08 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-03 21:08 [PATCH v6 00/18] introduce the Xen PV Calls backend Stefano Stabellini
2017-07-03 21:08 ` Stefano Stabellini [this message]
2017-07-03 21:08 ` [PATCH v6 02/18] xen/pvcalls: introduce the pvcalls xenbus backend Stefano Stabellini
2017-07-04 8:04 ` Juergen Gross
2017-07-03 21:08 ` [PATCH v6 03/18] xen/pvcalls: initialize the module and register the " Stefano Stabellini
2017-07-04 8:04 ` Juergen Gross
2017-07-03 21:08 ` [PATCH v6 04/18] xen/pvcalls: xenbus state handling Stefano Stabellini
2017-07-04 8:03 ` Juergen Gross
2017-07-05 20:24 ` Stefano Stabellini
2017-07-03 21:08 ` [PATCH v6 05/18] xen/pvcalls: connect to a frontend Stefano Stabellini
2017-07-04 6:59 ` Juergen Gross
2017-07-05 20:29 ` Stefano Stabellini
2017-07-03 21:08 ` [PATCH v6 06/18] xen/pvcalls: handle commands from the frontend Stefano Stabellini
2017-07-04 6:57 ` Juergen Gross
2017-07-05 20:43 ` Stefano Stabellini
2017-07-03 21:08 ` [PATCH v6 07/18] xen/pvcalls: implement socket command Stefano Stabellini
2017-07-04 7:52 ` Juergen Gross
2017-07-03 21:08 ` [PATCH v6 08/18] xen/pvcalls: implement connect command Stefano Stabellini
2017-07-04 7:14 ` Juergen Gross
2017-07-05 21:09 ` Stefano Stabellini
2017-07-03 21:08 ` [PATCH v6 09/18] xen/pvcalls: implement bind command Stefano Stabellini
2017-07-04 7:24 ` Juergen Gross
2017-07-05 21:18 ` Stefano Stabellini
2017-07-03 21:08 ` [PATCH v6 10/18] xen/pvcalls: implement listen command Stefano Stabellini
2017-07-04 7:51 ` Juergen Gross
2017-07-03 21:08 ` [PATCH v6 11/18] xen/pvcalls: implement accept command Stefano Stabellini
2017-07-04 7:26 ` Juergen Gross
2017-07-03 21:08 ` [PATCH v6 12/18] xen/pvcalls: implement poll command Stefano Stabellini
2017-07-04 7:28 ` Juergen Gross
2017-07-03 21:08 ` [PATCH v6 13/18] xen/pvcalls: implement release command Stefano Stabellini
2017-07-04 7:30 ` Juergen Gross
2017-07-03 21:08 ` [PATCH v6 14/18] xen/pvcalls: disconnect and module_exit Stefano Stabellini
2017-07-04 7:32 ` Juergen Gross
2017-07-05 21:22 ` Stefano Stabellini
2017-07-03 21:08 ` [PATCH v6 15/18] xen/pvcalls: implement the ioworker functions Stefano Stabellini
2017-07-04 7:48 ` Juergen Gross
2017-07-05 21:26 ` Stefano Stabellini
2017-07-03 21:08 ` [PATCH v6 16/18] xen/pvcalls: implement read Stefano Stabellini
2017-07-04 7:36 ` Juergen Gross
2017-07-03 21:08 ` [PATCH v6 17/18] xen/pvcalls: implement write Stefano Stabellini
2017-07-04 7:49 ` Juergen Gross
2017-07-03 21:08 ` [PATCH v6 18/18] xen: introduce a Kconfig option to enable the pvcalls backend Stefano Stabellini
2017-07-04 7:50 ` Juergen Gross
2017-07-04 8:05 ` [PATCH v6 01/18] xen: introduce the pvcalls interface header Juergen Gross
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