[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-unstable] libxl: Set vfb and vkb devid if not done so by the caller
# HG changeset patch # User Jim Fehlig <jfehlig@xxxxxxxx> # Date 1357906946 0 # Node ID 84d87ca765be81c215ef3b67d2ed71acfba73553 # Parent 35a0556a7f76c9a6f616cfc9d5a82dccfe36b994 libxl: Set vfb and vkb devid if not done so by the caller Other devices set a sensible devid if the caller has not done so. Do the same for vfb and vkb. While at it, factor out the common code used to determine a sensible devid, so it can be used by other libxl__device_*_add functions. Signed-off-by: Jim Fehlig <jfehlig@xxxxxxxx> Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx> Committed-by: Ian Campbell <ian.campbell@xxxxxxxxxx> --- diff -r 35a0556a7f76 -r 84d87ca765be tools/libxl/libxl.c --- a/tools/libxl/libxl.c Thu Jan 10 17:32:10 2013 +0000 +++ b/tools/libxl/libxl.c Fri Jan 11 12:22:26 2013 +0000 @@ -1710,6 +1710,26 @@ out: return; } +/* common function to get next device id */ +static int libxl__device_nextid(libxl__gc *gc, uint32_t domid, char *device) +{ + char *dompath, **l; + unsigned int nb; + int nextid = -1; + + if (!(dompath = libxl__xs_get_dompath(gc, domid))) + return nextid; + + l = libxl__xs_directory(gc, XBT_NULL, + GCSPRINTF("%s/device/%s", dompath, device), &nb); + if (l == NULL || nb == 0) + nextid = 0; + else + nextid = strtoul(l[nb - 1], NULL, 10) + 1; + + return nextid; +} + /******************************************************************************/ int libxl__device_vtpm_setdefault(libxl__gc *gc, libxl_device_vtpm *vtpm) { @@ -1741,8 +1761,7 @@ void libxl__device_vtpm_add(libxl__egc * flexarray_t *front; flexarray_t *back; libxl__device *device; - char *dompath, **l; - unsigned int nb, rc; + unsigned int rc; rc = libxl__device_vtpm_setdefault(gc, vtpm); if (rc) goto out; @@ -1750,18 +1769,11 @@ void libxl__device_vtpm_add(libxl__egc * front = flexarray_make(gc, 16, 1); back = flexarray_make(gc, 16, 1); - if(vtpm->devid == -1) { - if (!(dompath = libxl__xs_get_dompath(gc, domid))) { + if (vtpm->devid == -1) { + if ((vtpm->devid = libxl__device_nextid(gc, domid, "vtpm") < 0)) { rc = ERROR_FAIL; goto out; } - l = libxl__xs_directory(gc, XBT_NULL, - GCSPRINTF("%s/device/vtpm", dompath), &nb); - if(l == NULL || nb == 0) { - vtpm->devid = 0; - } else { - vtpm->devid = strtoul(l[nb - 1], NULL, 10) + 1; - } } GCNEW(device); @@ -2808,8 +2820,7 @@ void libxl__device_nic_add(libxl__egc *e flexarray_t *front; flexarray_t *back; libxl__device *device; - char *dompath, **l; - unsigned int nb, rc; + unsigned int rc; rc = libxl__device_nic_setdefault(gc, nic, domid); if (rc) goto out; @@ -2818,16 +2829,10 @@ void libxl__device_nic_add(libxl__egc *e back = flexarray_make(gc, 16, 1); if (nic->devid == -1) { - if (!(dompath = libxl__xs_get_dompath(gc, domid))) { + if ((nic->devid = libxl__device_nextid(gc, domid, "vif") < 0)) { rc = ERROR_FAIL; goto out; } - if (!(l = libxl__xs_directory(gc, XBT_NULL, - libxl__sprintf(gc, "%s/device/vif", dompath), &nb))) { - nic->devid = 0; - } else { - nic->devid = strtoul(l[nb - 1], NULL, 10) + 1; - } } GCNEW(device); @@ -3192,6 +3197,13 @@ int libxl__device_vkb_add(libxl__gc *gc, front = flexarray_make(gc, 16, 1); back = flexarray_make(gc, 16, 1); + if (vkb->devid == -1) { + if ((vkb->devid = libxl__device_nextid(gc, domid, "vkb") < 0)) { + rc = ERROR_FAIL; + goto out; + } + } + rc = libxl__device_from_vkb(gc, domid, vkb, &device); if (rc != 0) goto out; @@ -3282,6 +3294,13 @@ int libxl__device_vfb_add(libxl__gc *gc, front = flexarray_make(gc, 16, 1); back = flexarray_make(gc, 16, 1); + if (vfb->devid == -1) { + if ((vfb->devid = libxl__device_nextid(gc, domid, "vfb") < 0)) { + rc = ERROR_FAIL; + goto out; + } + } + rc = libxl__device_from_vfb(gc, domid, vfb, &device); if (rc != 0) goto out; _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxx http://lists.xensource.com/xen-changelog
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