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| author | Paul Durrant <paul.durrant@citrix.com> | 2019-01-08 14:48:59 +0000 |
|---|---|---|
| committer | Anthony PERARD <anthony.perard@citrix.com> | 2019-01-14 13:45:40 +0000 |
| commit | b6af8926fb858c4f1426e5acb2cfc1f0580ec98a (patch) | |
| tree | 51cdeee977b3bd6cad7fef1985c1273fbf826654 /include/hw | |
| parent | d4683cf952d3bdcbcbfcfd982d77cb6b02041040 (diff) | |
| download | focaccia-qemu-b6af8926fb858c4f1426e5acb2cfc1f0580ec98a.tar.gz focaccia-qemu-b6af8926fb858c4f1426e5acb2cfc1f0580ec98a.zip | |
xen: add implementations of xen-block connect and disconnect functions...
...and wire in the dataplane. This patch adds the remaining code to make the xen-block XenDevice functional. The parameters that a block frontend expects to find are populated in the backend xenstore area, and the 'ring-ref' and 'event-channel' values specified in the frontend xenstore area are mapped/bound and used to set up the dataplane. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Reviewed-by: Anthony Perard <anthony.perard@citrix.com> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/xen/xen-block.h | 9 | ||||
| -rw-r--r-- | include/hw/xen/xen-bus.h | 14 |
2 files changed, 22 insertions, 1 deletions
diff --git a/include/hw/xen/xen-block.h b/include/hw/xen/xen-block.h index 29413256e9..c4223f9be1 100644 --- a/include/hw/xen/xen-block.h +++ b/include/hw/xen/xen-block.h @@ -9,6 +9,9 @@ #define HW_XEN_BLOCK_H #include "hw/xen/xen-bus.h" +#include "hw/block/block.h" +#include "hw/block/dataplane/xen-block.h" +#include "sysemu/iothread.h" typedef enum XenBlockVdevType { XEN_BLOCK_VDEV_TYPE_INVALID, @@ -28,11 +31,17 @@ typedef struct XenBlockVdev { typedef struct XenBlockProperties { XenBlockVdev vdev; + BlockConf conf; + unsigned int max_ring_page_order; + IOThread *iothread; } XenBlockProperties; typedef struct XenBlockDevice { XenDevice xendev; XenBlockProperties props; + const char *device_type; + unsigned int info; + XenBlockDataPlane *dataplane; } XenBlockDevice; typedef void (*XenBlockDeviceRealize)(XenBlockDevice *blockdev, Error **errp); diff --git a/include/hw/xen/xen-bus.h b/include/hw/xen/xen-bus.h index b554559e5b..8f39f88d35 100644 --- a/include/hw/xen/xen-bus.h +++ b/include/hw/xen/xen-bus.h @@ -23,7 +23,9 @@ typedef struct XenDevice { char *backend_path, *frontend_path; enum xenbus_state backend_state, frontend_state; Notifier exit; - XenWatch *frontend_state_watch; + XenWatch *backend_state_watch, *frontend_state_watch; + bool backend_online; + XenWatch *backend_online_watch; xengnttab_handle *xgth; bool feature_grant_copy; xenevtchn_handle *xeh; @@ -83,6 +85,16 @@ void xen_device_backend_set_state(XenDevice *xendev, enum xenbus_state state); enum xenbus_state xen_device_backend_get_state(XenDevice *xendev); +void xen_device_backend_printf(XenDevice *xendev, const char *key, + const char *fmt, ...) + GCC_FMT_ATTR(3, 4); +void xen_device_frontend_printf(XenDevice *xendev, const char *key, + const char *fmt, ...) + GCC_FMT_ATTR(3, 4); + +int xen_device_frontend_scanf(XenDevice *xendev, const char *key, + const char *fmt, ...); + void xen_device_set_max_grant_refs(XenDevice *xendev, unsigned int nr_refs, Error **errp); void *xen_device_map_grant_refs(XenDevice *xendev, uint32_t *refs, |