[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v1 01/12] libxl/hotplug: add support for getting domid
On Fri, 2013-11-01 at 18:42 +0000, Ian Jackson wrote: > Roger Pau Monne writes ("[PATCH v1 01/12] libxl/hotplug: add support for > getting domid"): > > This patch writes Dom0 domid on xenstore (like it's done for other > > guests), and adds a libxl helper function to fetch that domid from > > xenstore. > > > > Signed-off-by: Roger Pau Monnà <roger.pau@xxxxxxxxxx> > > Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx> > > Cc: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> > > Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx> I applied this, dropping the xencommons change which already happened. Here is what went in: commit d6bc83a531e4cfdd29da95afa992b95be8316080 Author: Roger Pau Monne <roger.pau@xxxxxxxxxx> Date: Wed Oct 2 11:24:23 2013 +0200 libxl/hotplug: add support for getting domid This patch writes Dom0 domid on xenstore (like it's done for other guests), and adds a libxl helper function to fetch that domid from xenstore. Signed-off-by: Roger Pau Monnà <roger.pau@xxxxxxxxxx> Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx> Acked-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> [ ijc -- dropped xencommons hunk, same change was made independently in 02ebea7768fe ] diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c index bede011..0f0f56c 100644 --- a/tools/libxl/libxl.c +++ b/tools/libxl/libxl.c @@ -1692,6 +1692,23 @@ int libxl_vncviewer_exec(libxl_ctx *ctx, uint32_t domid, int autopass) return ERROR_FAIL; } +int libxl__get_domid(libxl__gc *gc, uint32_t *domid) +{ + int rc; + const char *xs_domid; + + rc = libxl__xs_read_checked(gc, XBT_NULL, DOMID_XS_PATH, &xs_domid); + if (rc || !xs_domid) { + rc = rc ? rc : ERROR_FAIL; + goto out; + } + + *domid = atoi(xs_domid); + +out: + return rc; +} + /******************************************************************************/ /* generic callback for devices that only need to set ao_complete */ diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h index 4f92522..4729566 100644 --- a/tools/libxl/libxl_internal.h +++ b/tools/libxl/libxl_internal.h @@ -101,6 +101,7 @@ #define STUBDOM_SPECIAL_CONSOLES 3 #define TAP_DEVICE_SUFFIX "-emu" #define DISABLE_UDEV_PATH "libxl/disable_udev" +#define DOMID_XS_PATH "domid" #define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0])) @@ -978,6 +979,8 @@ _hidden const char *libxl__device_nic_devname(libxl__gc *gc, uint32_t devid, libxl_nic_type type); +_hidden int libxl__get_domid(libxl__gc *gc, uint32_t *domid); + /* * libxl__ev_devstate - waits a given time for a device to * reach a given state. Follows the libxl_ev_* conventions. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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