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| author | Anthony PERARD <anthony.perard@citrix.com> | 2014-10-29 06:50:50 +0000 |
|---|---|---|
| committer | jljusten <jljusten@Edk2> | 2014-10-29 06:50:50 +0000 |
| commit | a9090a94bb4a8dae61eb79428a5769916d621940 (patch) | |
| tree | 8f17f2b01fcdc99bffa72d6cecf1454d79b461de /OvmfPkg/Include/Protocol | |
| parent | 6342f1fea881996666b4f1a9e7f132c484e03ff0 (diff) | |
| download | edk2-a9090a94bb4a8dae61eb79428a5769916d621940.tar.gz edk2-a9090a94bb4a8dae61eb79428a5769916d621940.tar.bz2 edk2-a9090a94bb4a8dae61eb79428a5769916d621940.zip | |
OvmfPkg/XenBusDxe: Add XenStore client implementation
XenStore is a key/value database, which is running on another virtual
machine. It can be accessed through shared memory. This is a client
implementation.
Change in V3:
- moving xs_wire.h from patch #1 to this patch
- fix return value of XenStoreListDirectory
- Use a timeout to print a debug message if the other side of the
xenstore ring does not notify through the event channel.
This is done with the new XenStoreWaitForEvent function.
- Have XenStoreReadReply check status of XenStoreProcessMessage and
return an error if needed.
- Have XenStoreTalkv return the status of XenStoreReadReply.
- Have a loop to check for the quiescent of the response ring in the
XenStoreInitComms function. (with a timeout of 5 seconds)
- use the recently introduced XenStore 'closing' feature.
Change in V2:
- Change comment style, from freebsd to ovmf
- Fix type of EventChannel
- Fix debug print, no more cast
- Implement XenStoreDeinit.
- Clean up comments
- Fix few codding style issue
- Add FAIL xenstore status value.
Origin: FreeBSD 10.0
License: This patch adds several files under the MIT licence.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16267 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg/Include/Protocol')
| -rw-r--r-- | OvmfPkg/Include/Protocol/XenBus.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/OvmfPkg/Include/Protocol/XenBus.h b/OvmfPkg/Include/Protocol/XenBus.h index 89bf74fbc5..565d491db6 100644 --- a/OvmfPkg/Include/Protocol/XenBus.h +++ b/OvmfPkg/Include/Protocol/XenBus.h @@ -32,6 +32,35 @@ ///
typedef struct _XENBUS_PROTOCOL XENBUS_PROTOCOL;
+typedef enum xenbus_state XenBusState;
+
+typedef struct
+{
+ UINT32 Id;
+} XENSTORE_TRANSACTION;
+
+#define XST_NIL ((XENSTORE_TRANSACTION) { 0 })
+
+typedef enum {
+ XENSTORE_STATUS_SUCCESS = 0,
+ XENSTORE_STATUS_FAIL,
+ XENSTORE_STATUS_EINVAL,
+ XENSTORE_STATUS_EACCES,
+ XENSTORE_STATUS_EEXIST,
+ XENSTORE_STATUS_EISDIR,
+ XENSTORE_STATUS_ENOENT,
+ XENSTORE_STATUS_ENOMEM,
+ XENSTORE_STATUS_ENOSPC,
+ XENSTORE_STATUS_EIO,
+ XENSTORE_STATUS_ENOTEMPTY,
+ XENSTORE_STATUS_ENOSYS,
+ XENSTORE_STATUS_EROFS,
+ XENSTORE_STATUS_EBUSY,
+ XENSTORE_STATUS_EAGAIN,
+ XENSTORE_STATUS_EISCONN,
+ XENSTORE_STATUS_E2BIG
+} XENSTORE_STATUS;
+
#include <IndustryStandard/Xen/grant_table.h>
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