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[85.223.209.58]) by smtp.gmail.com with ESMTPSA id s134sm620442lfe.27.2017.07.18.07.25.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 18 Jul 2017 07:25:41 -0700 (PDT) From: Oleksandr Grytsov To: xen-devel@lists.xenproject.org Date: Tue, 18 Jul 2017 17:25:20 +0300 Message-Id: <1500387930-16317-4-git-send-email-al1img@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1500387930-16317-1-git-send-email-al1img@gmail.com> References: <1500387930-16317-1-git-send-email-al1img@gmail.com> Cc: ian.jackson@eu.citrix.com, wei.liu2@citrix.com, Oleksandr Grytsov Subject: [Xen-devel] [PATCH v4 03/13] libxl: add vdispl device X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Oleksandr Grytsov Signed-off-by: Oleksandr Grytsov --- tools/libxl/Makefile | 2 +- tools/libxl/libxl.h | 24 +++ tools/libxl/libxl_create.c | 1 + tools/libxl/libxl_internal.h | 1 + tools/libxl/libxl_types.idl | 38 ++++- tools/libxl/libxl_types_internal.idl | 1 + tools/libxl/libxl_utils.h | 4 + tools/libxl/libxl_vdispl.c | 289 +++++++++++++++++++++++++++++++++++ 8 files changed, 358 insertions(+), 2 deletions(-) create mode 100644 tools/libxl/libxl_vdispl.c diff --git a/tools/libxl/Makefile b/tools/libxl/Makefile index 1bf6b8c..6f57e65 100644 --- a/tools/libxl/Makefile +++ b/tools/libxl/Makefile @@ -138,7 +138,7 @@ LIBXL_OBJS = flexarray.o libxl.o libxl_create.o libxl_dm.o libxl_pci.o \ libxl_dom_suspend.o libxl_dom_save.o libxl_usb.o \ libxl_vtpm.o libxl_nic.o libxl_disk.o libxl_console.o \ libxl_cpupool.o libxl_mem.o libxl_sched.o libxl_tmem.o \ - libxl_9pfs.o libxl_domain.o \ + libxl_9pfs.o libxl_domain.o libxl_vdispl.o \ $(LIBXL_OBJS-y) LIBXL_OBJS += libxl_genid.o LIBXL_OBJS += _libxl_types.o libxl_flask.o _libxl_types_internal.o diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h index cf8687a..4c0d612 100644 --- a/tools/libxl/libxl.h +++ b/tools/libxl/libxl.h @@ -1851,6 +1851,30 @@ libxl_device_vtpm *libxl_device_vtpm_list(libxl_ctx *ctx, uint32_t domid, int *n int libxl_device_vtpm_getinfo(libxl_ctx *ctx, uint32_t domid, libxl_device_vtpm *vtpm, libxl_vtpminfo *vtpminfo); +/* Virtual displays */ +int libxl_device_vdispl_add(libxl_ctx *ctx, uint32_t domid, + libxl_device_vdispl *displ, + const libxl_asyncop_how *ao_how) + LIBXL_EXTERNAL_CALLERS_ONLY; +int libxl_device_vdispl_remove(libxl_ctx *ctx, uint32_t domid, + libxl_device_vdispl *vdispl, + const libxl_asyncop_how *ao_how) + LIBXL_EXTERNAL_CALLERS_ONLY; +int libxl_device_vdispl_destroy(libxl_ctx *ctx, uint32_t domid, + libxl_device_vdispl *vdispl, + const libxl_asyncop_how *ao_how) + LIBXL_EXTERNAL_CALLERS_ONLY; + +libxl_device_vdispl *libxl_device_vdispl_list(libxl_ctx *ctx, + uint32_t domid, int *num) + LIBXL_EXTERNAL_CALLERS_ONLY; +void libxl_device_vdispl_list_free(libxl_device_vdispl* list, int num) + LIBXL_EXTERNAL_CALLERS_ONLY; +int libxl_device_vdispl_getinfo(libxl_ctx *ctx, uint32_t domid, + libxl_device_vdispl *vdispl, + libxl_vdisplinfo *vdisplinfo) + LIBXL_EXTERNAL_CALLERS_ONLY; + /* Keyboard */ int libxl_device_vkb_add(libxl_ctx *ctx, uint32_t domid, libxl_device_vkb *vkb, const libxl_asyncop_how *ao_how) diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c index b2163cd..912bd21 100644 --- a/tools/libxl/libxl_create.c +++ b/tools/libxl/libxl_create.c @@ -1443,6 +1443,7 @@ const struct libxl_device_type *device_type_tbl[] = { &libxl__usbdev_devtype, &libxl__pcidev_devtype, &libxl__dtdev_devtype, + &libxl__vdispl_devtype, NULL }; diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h index 271ac89..68c08aa 100644 --- a/tools/libxl/libxl_internal.h +++ b/tools/libxl/libxl_internal.h @@ -3564,6 +3564,7 @@ extern const struct libxl_device_type libxl__vtpm_devtype; extern const struct libxl_device_type libxl__usbctrl_devtype; extern const struct libxl_device_type libxl__usbdev_devtype; extern const struct libxl_device_type libxl__pcidev_devtype; +extern const struct libxl_device_type libxl__vdispl_devtype; extern const struct libxl_device_type *device_type_tbl[]; diff --git a/tools/libxl/libxl_types.idl b/tools/libxl/libxl_types.idl index 2204425..25563cf 100644 --- a/tools/libxl/libxl_types.idl +++ b/tools/libxl/libxl_types.idl @@ -755,7 +755,21 @@ libxl_device_vtpm = Struct("device_vtpm", [ ("backend_domname", string), ("devid", libxl_devid), ("uuid", libxl_uuid), -]) + ]) + +libxl_connector_param = Struct("connector_param", [ + ("id", string), + ("width", uint32), + ("height", uint32) + ]) + +libxl_device_vdispl = Struct("device_vdispl", [ + ("backend_domid", libxl_domid), + ("backend_domname", string), + ("devid", libxl_devid), + ("be_alloc", bool), + ("connectors", Array(libxl_connector_param, "num_connectors")) + ]) libxl_device_p9 = Struct("device_p9", [ ("backend_domid", libxl_domid), @@ -791,6 +805,7 @@ libxl_domain_config = Struct("domain_config", [ ("vkbs", Array(libxl_device_vkb, "num_vkbs")), ("vtpms", Array(libxl_device_vtpm, "num_vtpms")), ("p9", Array(libxl_device_p9, "num_p9s")), + ("vdispls", Array(libxl_device_vdispl, "num_vdispls")), # a channel manifests as a console with a name, # see docs/misc/channels.txt ("channels", Array(libxl_device_channel, "num_channels")), @@ -887,6 +902,27 @@ libxl_physinfo = Struct("physinfo", [ ("cap_hvm_directio", bool), ], dir=DIR_OUT) +libxl_connectorinfo = Struct("connectorinfo", [ + ("id", string), + ("width", uint32), + ("height", uint32), + ("req_evtch", integer), + ("req_rref", integer), + ("evt_evtch", integer), + ("evt_rref", integer), + ], dir=DIR_OUT) + +libxl_vdisplinfo = Struct("vdisplinfo", [ + ("backend", string), + ("backend_id", uint32), + ("frontend", string), + ("frontend_id", uint32), + ("devid", libxl_devid), + ("state", integer), + ("be_alloc", bool), + ("connectors", Array(libxl_connectorinfo, "num_connectors")) + ], dir=DIR_OUT) + # NUMA node characteristics: size and free are how much memory it has, and how # much of it is free, respectively. dists is an array of distances from this # node to each other node. diff --git a/tools/libxl/libxl_types_internal.idl b/tools/libxl/libxl_types_internal.idl index 7dc4d0f..673a6d5 100644 --- a/tools/libxl/libxl_types_internal.idl +++ b/tools/libxl/libxl_types_internal.idl @@ -26,6 +26,7 @@ libxl__device_kind = Enumeration("device_kind", [ (9, "VUSB"), (10, "QUSB"), (11, "9PFS"), + (12, "VDISPL"), ]) libxl__console_backend = Enumeration("console_backend", [ diff --git a/tools/libxl/libxl_utils.h b/tools/libxl/libxl_utils.h index 25773d8..9e743dc 100644 --- a/tools/libxl/libxl_utils.h +++ b/tools/libxl/libxl_utils.h @@ -78,6 +78,10 @@ int libxl_devid_to_device_vtpm(libxl_ctx *ctx, uint32_t domid, int devid, libxl_device_vtpm *vtpm); int libxl_devid_to_device_usbctrl(libxl_ctx *ctx, uint32_t domid, int devid, libxl_device_usbctrl *usbctrl); + +int libxl_devid_to_device_vdispl(libxl_ctx *ctx, uint32_t domid, + int devid, libxl_device_vdispl *vdispl); + int libxl_ctrlport_to_device_usbdev(libxl_ctx *ctx, uint32_t domid, int ctrl, int port, libxl_device_usbdev *usbdev); diff --git a/tools/libxl/libxl_vdispl.c b/tools/libxl/libxl_vdispl.c new file mode 100644 index 0000000..e75e797 --- /dev/null +++ b/tools/libxl/libxl_vdispl.c @@ -0,0 +1,289 @@ +/* + * Copyright (C) 2016 EPAM Systems Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published + * by the Free Software Foundation; version 2.1 only. with the special + * exception on linking described in file LICENSE. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + */ + +#include "libxl_internal.h" + +static int libxl__device_vdispl_setdefault(libxl__gc *gc, uint32_t domid, + libxl_device_vdispl *vdispl, + bool hotplug) +{ + return libxl__resolve_domid(gc, vdispl->backend_domname, + &vdispl->backend_domid); +} + +static int libxl__device_from_vdispl(libxl__gc *gc, uint32_t domid, + libxl_device_vdispl *vdispl, + libxl__device *device) +{ + device->backend_devid = vdispl->devid; + device->backend_domid = vdispl->backend_domid; + device->backend_kind = LIBXL__DEVICE_KIND_VDISPL; + device->devid = vdispl->devid; + device->domid = domid; + device->kind = LIBXL__DEVICE_KIND_VDISPL; + + return 0; +} + +static int libxl__vdispl_from_xenstore(libxl__gc *gc, const char *libxl_path, + libxl_devid devid, + libxl_device_vdispl *vdispl) +{ + char *be_path; + + vdispl->devid = devid; + be_path = libxl__xs_read(gc, XBT_NULL, GCSPRINTF("%s/backend", libxl_path)); + + return libxl__backendpath_parse_domid(gc, be_path, &vdispl->backend_domid); +} + +static void libxl__update_config_vdispl(libxl__gc *gc, + libxl_device_vdispl *dst, + libxl_device_vdispl *src) +{ + dst->devid = src->devid; + dst->be_alloc = src->be_alloc; +} + +static int libxl_device_vdispl_compare(libxl_device_vdispl *d1, + libxl_device_vdispl *d2) +{ + return COMPARE_DEVID(d1, d2); +} + +static void libxl__device_vdispl_add(libxl__egc *egc, uint32_t domid, + libxl_device_vdispl *vdispl, + libxl__ao_device *aodev) +{ + libxl__device_add_async(egc, domid, &libxl__vdispl_devtype, vdispl, aodev); +} + +static int libxl__set_xenstore_vdispl(libxl__gc *gc, uint32_t domid, + libxl_device_vdispl *vdispl, + flexarray_t *back, flexarray_t *front, + flexarray_t *ro_front) +{ + int i; + + flexarray_append_pair(ro_front, "be-alloc", + GCSPRINTF("%d", vdispl->be_alloc)); + + for (i = 0; i < vdispl->num_connectors; i++) { + flexarray_append_pair(ro_front, GCSPRINTF("%d/resolution", i), + GCSPRINTF("%dx%d", vdispl->connectors[i].width, + vdispl->connectors[i].height)); + flexarray_append_pair(ro_front, GCSPRINTF("%d/id", i), + vdispl->connectors[i].id); + } + + return 0; +} + +libxl_device_vdispl *libxl_device_vdispl_list(libxl_ctx *ctx, uint32_t domid, + int *num) +{ + libxl_device_vdispl *r; + + GC_INIT(ctx); + + r = libxl__device_list(gc, &libxl__vdispl_devtype, domid, "vdispl", num); + + GC_FREE; + + return r; +} + +void libxl_device_vdispl_list_free(libxl_device_vdispl* list, int num) +{ + libxl__device_list_free(&libxl__vdispl_devtype, list, num); +} + +static int libxl__device_vdispl_getconnectors(libxl_ctx *ctx, + const char *path, + libxl_vdisplinfo *info) +{ + GC_INIT(ctx); + char *connector = NULL; + char *connector_path = NULL; + int i, rc; + + GCNEW_ARRAY(connector_path, 128); + + info->num_connectors = 0; + + rc = snprintf(connector_path, 128, "%s/%d", path, info->num_connectors); + if (rc < 0) goto out; + + while((connector = xs_read(ctx->xsh, XBT_NULL, connector_path, NULL)) + != NULL) { + free(connector); + + rc = snprintf(connector_path, 128, "%s/%d", + path, ++info->num_connectors); + if (rc < 0) goto out; + } + + info->connectors = libxl__calloc(NOGC, info->num_connectors, + sizeof(*info->connectors)); + + for (i = 0; i < info->num_connectors; i++) { + char *value; + + snprintf(connector_path, 128, "%s/%d/id", path, i); + info->connectors[i].id = xs_read(ctx->xsh, XBT_NULL, + connector_path, NULL); + if (info->connectors[i].id == NULL) { rc = ERROR_FAIL; goto out; } + + snprintf(connector_path, 128, "%s/%d/resolution", path, i); + value = xs_read(ctx->xsh, XBT_NULL, connector_path, NULL); + if (value == NULL) { rc = ERROR_FAIL; goto out; } + + rc = sscanf(value, "%ux%u", &info->connectors[i].width, + &info->connectors[i].height); + free(value); + if (rc != 2) { + rc = ERROR_FAIL; goto out; + } + + snprintf(connector_path, 128, "%s/%d/req-ring-ref", path, i); + value = xs_read(ctx->xsh, XBT_NULL, connector_path, NULL); + info->connectors[i].req_rref = value ? strtoul(value, NULL, 10) : -1; + free(value); + + snprintf(connector_path, 128, "%s/%d/req-event-channel", path, i); + value = xs_read(ctx->xsh, XBT_NULL, connector_path, NULL); + info->connectors[i].req_evtch = value ? strtoul(value, NULL, 10) : -1; + free(value); + + snprintf(connector_path, 128, "%s/%d/evt-ring-ref", path, i); + value = xs_read(ctx->xsh, XBT_NULL, connector_path, NULL); + info->connectors[i].evt_rref = value ? strtoul(value, NULL, 10) : -1; + free(value); + + snprintf(connector_path, 128, "%s/%d/evt-event-channel", path, i); + value = xs_read(ctx->xsh, XBT_NULL, connector_path, NULL); + info->connectors[i].evt_evtch = value ? strtoul(value, NULL, 10) : -1; + free(value); + } + + rc = 0; + +out: + return rc; +} + +int libxl_device_vdispl_getinfo(libxl_ctx *ctx, uint32_t domid, + libxl_device_vdispl *vdispl, + libxl_vdisplinfo *info) +{ + GC_INIT(ctx); + char *libxl_path, *dompath, *devpath; + char *val; + int rc; + + libxl_vdisplinfo_init(info); + dompath = libxl__xs_get_dompath(gc, domid); + info->devid = vdispl->devid; + + devpath = GCSPRINTF("%s/device/vdispl/%d", dompath, info->devid); + libxl_path = GCSPRINTF("%s/device/vdispl/%d", + libxl__xs_libxl_path(gc, domid), + info->devid); + info->backend = xs_read(ctx->xsh, XBT_NULL, + GCSPRINTF("%s/backend", libxl_path), + NULL); + if (!info->backend) { rc = ERROR_FAIL; goto out; } + + rc = libxl__backendpath_parse_domid(gc, info->backend, &info->backend_id); + if (rc) goto out; + + val = libxl__xs_read(gc, XBT_NULL, GCSPRINTF("%s/state", devpath)); + info->state = val ? strtoul(val, NULL, 10) : -1; + + info->frontend = xs_read(ctx->xsh, XBT_NULL, + GCSPRINTF("%s/frontend", libxl_path), + NULL); + info->frontend_id = domid; + + val = libxl__xs_read(gc, XBT_NULL, GCSPRINTF("%s/be-alloc", devpath)); + info->be_alloc = val ? strtoul(val, NULL, 10) : 0; + + rc = libxl__device_vdispl_getconnectors(ctx, devpath, info); + if (rc) goto out; + + rc = 0; + +out: + GC_FREE; + return rc; +} + +int libxl_devid_to_device_vdispl(libxl_ctx *ctx, uint32_t domid, + int devid, libxl_device_vdispl *vdispl) +{ + GC_INIT(ctx); + + libxl_device_vdispl *vdispls = NULL; + int n, i; + int rc; + + libxl_device_vdispl_init(vdispl); + + vdispls = libxl__device_list(gc, &libxl__vdispl_devtype, + domid, "vdispl", &n); + + if (!vdispls) { rc = ERROR_NOTFOUND; goto out; } + + for (i = 0; i < n; ++i) { + if (devid == vdispls[i].devid) { + libxl_device_vdispl_copy(ctx, vdispl, &vdispls[i]); + rc = 0; + goto out; + } + } + + rc = ERROR_NOTFOUND; + +out: + + if (vdispls) + libxl__device_list_free(&libxl__vdispl_devtype, vdispls, n); + + GC_FREE; + return rc; +} + +LIBXL_DEFINE_DEVICE_ADD(vdispl) +static LIBXL_DEFINE_DEVICES_ADD(vdispl) +LIBXL_DEFINE_DEVICE_REMOVE(vdispl) +static LIBXL_DEFINE_UPDATE_DEVID(vdispl, "vdispl") + +DEFINE_DEVICE_TYPE_STRUCT(vdispl, + .update_config = (void (*)(libxl__gc *, void *, void *)) + libxl__update_config_vdispl, + .from_xenstore = (int (*)(libxl__gc *, const char *, libxl_devid, void *)) + libxl__vdispl_from_xenstore, + .set_xenstore_config = (int (*)(libxl__gc *, uint32_t, void *, + flexarray_t *back, flexarray_t *front, + flexarray_t *ro_front)) + libxl__set_xenstore_vdispl +); + +/* + * Local variables: + * mode: C + * c-basic-offset: 4 + * indent-tabs-mode: nil + * End: + */