search for: xs_write

...te the Wiki with current information. I have been spending quite a lot of time trying to get my domU connected to a block device in dom0 using a home-brewed domain creation tool, and I am still at the ''Timeout connecting to device!'' stage. My stragegy has been to log all calls to xs_write() under Xend, and then replay those same calls with my own tool on a freshly booted machine, but to no avail. In general things work with Xend, at least as long as I am not trying to restart xenstored without a reboot. I have noticed that with the most recent Xen-unstable, the store is now split i...

...truct xs_handle *xs, const char *state) { char path[50]; + if (xs == NULL) { + fprintf(stderr, "xenstore connection not initialized\n"); + exit(1); + } + snprintf(path, sizeof (path), "/local/domain/0/device-model/%u/state", xen_domid); - if (!xs_write(s->xenstore, XBT_NULL, path, state, strlen(state))) { + if (!xs_write(xs, XBT_NULL, path, state, strlen(state))) { fprintf(stderr, "error recording dm state\n"); exit(1); } @@ -823,15 +828,20 @@ static void xen_main_loop_prepare(XenIOState *state) if (evt...

...x->xsh, t, frontend_path); - xs_rm(ctx->xsh, t, backend_path); + if (fents) { + xs_rm(ctx->xsh, t, frontend_path); + xs_mkdir(ctx->xsh, t, frontend_path); + xs_set_permissions(ctx->xsh, t, frontend_path, frontend_perms, ARRAY_SIZE(frontend_perms)); + xs_write(ctx->xsh, t, libxl_sprintf(&gc, "%s/backend", frontend_path), backend_path, strlen(backend_path)); + libxl_xs_writev(&gc, t, frontend_path, fents); + } - xs_mkdir(ctx->xsh, t, frontend_path); - xs_set_permissions(ctx->xsh, t, frontend_path, frontend_perm...

To remove a pci passthough device from QEMU (upstream). Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> --- tools/libxl/libxl_internal.h | 2 ++ tools/libxl/libxl_qmp.c | 35 +++++++++++++++++++++++++++++++++++ 2 files changed, 37 insertions(+), 0 deletions(-) diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h index 1dff211..84da6b1 100644 ---

...(ctx, XL_LOG_ERROR, "cannot allocate create paths"); + libxl_free_all(&gc); return ERROR_FAIL; } @@ -147,42 +148,47 @@ retry_transaction: xs_mkdir(ctx->xsh, t, vm_path); xs_set_permissions(ctx->xsh, t, vm_path, roperm, ARRAY_SIZE(roperm)); - xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/vm", dom_path), vm_path, strlen(vm_path)); + xs_write(ctx->xsh, t, libxl_sprintf(&gc, "%s/vm", dom_path), vm_path, strlen(vm_path)); rc = libxl_domain_rename(ctx, *domid, 0, info->name, t); - if (rc) return rc; + if...

..._spawn; char *kvs[3]; - int rc; struct xs_handle *xsh; - xsh = xs_daemon_open(); /* we mustn''t use the parent''s handle in the child */ kvs[0] = "image/device-model-pid"; @@ -1398,9 +1396,10 @@ return; kvs[2] = NULL; - rc = xs_writev(xsh, XBT_NULL, starting->dom_path, kvs); - if (rc) - return; + xsh = xs_daemon_open(); + if (!xsh) + xsh = xs_domain_open(); + xs_writev(xsh, XBT_NULL, starting->dom_path, kvs); xs_daemon_close(xsh); } diff -r eff592364826 tools/libxl/libxl_device.c --- a/to...

...toolstacks (such as EC2) do not ignore unknown commands properly. Signed-off-by: Olaf Hering <olaf@aepfle.de> diff -r 3a22ed3ec534 -r 2f5a98692acd tools/libxl/libxl_create.c --- a/tools/libxl/libxl_create.c +++ b/tools/libxl/libxl_create.c @@ -434,6 +434,7 @@ retry_transaction: libxl__xs_writev(gc, t, libxl__sprintf(gc, "%s/platform", dom_path), info->platformdata); xs_write(ctx->xsh, t, libxl__sprintf(gc, "%s/control/platform-feature-multiprocessor-suspend", dom_path), "1", 1); + xs_write(ctx->xsh, t, libxl__sprintf(gc, "%s/control/p...

...warnx("failed to unmask suspend notification channel: %d", rc); /* notify xend that it can do device migration */ printf("suspended\n"); @@ -195,11 +192,9 @@ /* Tell qemu that we want it to start writing log-dirty bits to the * other buffer */ - if (!xs_write(xs, XBT_NULL, qemu_next_active_path, &digit, 1)) { + if (!xs_write(xs, XBT_NULL, qemu_next_active_path, &digit, 1)) errx(1, "can''t write next-active to store path (%s)\n", - qemu_next_active_path); - exit(1); - } + qemu_next_active...

...- if (!success) - goto out; - data = xs_read(xs, XBT_NULL, path, &len); - if (data) { - dom->buffer.max_capacity = strtoul(data, 0, 0); - free(data); - } - free(path); - - success = asprintf(&path, "%s/tty", dom->serialpath) != -1; - if (!success) - goto out; - success = xs_write(xs, XBT_NULL, path, slave, strlen(slave)); - free(path); - if (!success) - goto out; - - if (dom->use_consolepath) { success = (asprintf(&path, "%s/tty", dom->conspath) != -1); if (!success) goto out; @@ -479,6 +458,23 @@ static int domain_create_tty(struct doma fr...

This patch series adds support for preservation of the VM generation ID buffer address in xenstore across save/restore and migrate, and also code to increment the value in all cases except for migration. Patch 1 modifies the guest ro and rw node creation to an open coding style and cleans up some extraneous node creation. Patch 2 modifies creation of the hvmloader key in xenstore and adds

...page at pfn 3ffff buffered io page at pfn 3fffd xs_read(/vm/e2a537ca-5ef5-e87d-6505-855529af3ea4/rtc/timeoffset): read error I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0 I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0 Triggered log-dirty buffer switch xs_write(/vm/e2a537ca-5ef5-e87d-6505-855529af3ea4/rtc/timeoffset, rtc/timeoffset): write error xs_write(/vm/e2a537ca-5ef5-e87d-6505-855529af3ea4/rtc/timeoffset, rtc/timeoffset): write error --------------------------------------------------------------------------- name = "vm-002_win" uuid = &qu...

This patch series adds support for preservation of the VM generation ID buffer address in xenstore across save/restore and migrate, and also code to increment the value in all cases except for migration. The first patch modifies creation of the hvmloader key in xenstore and adds creation of a new read/write hvmloader/generation-id-addr key. The second patch changes hvmloader to use the new key (as

...@@ int libxl_domain_shutdown(struct libxl_ctx *ctx, uint32_t domid, int req) return ERROR_INVAL; dom_path = libxl_xs_get_dompath(ctx, domid); + if (!dom_path) + return ERROR_FAIL; + shutdown_path = libxl_sprintf(ctx, "%s/control/shutdown", dom_path); xs_write(ctx->xsh, XBT_NULL, shutdown_path, req_table[req], strlen(req_table[req])); @@ -347,20 +353,21 @@ static int libxl_destroy_device_model(struct libxl_ctx *ctx, uint32_t domid) pid = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "/local/domain/%d/image/device-model-pid", domid))...

...saction, node)) { + send_error(conn, EROFS); + return; + } if (transaction_block(conn, node)) - return true; + return; offset = strlen(vec[0]) + strlen(vec[1]) + 2; datalen = in->used - offset; @@ -921,193 +930,244 @@ mode = XS_PERM_WRITE|XS_PERM_CREATE; else if (streq(vec[1], XS_WRITE_CREATE_EXCL)) mode = XS_PERM_WRITE|XS_PERM_CREATE; - else - return send_error(conn, EINVAL); - - if (!check_node_perms(conn, node, mode)) - return send_error(conn, errno); + else { + send_error(conn, EINVAL); + return; + } + + if (!check_node_perms(conn, node, mode)) { + send_error(conn, er...

Hello I have trouble with Quard Core Opteron and windows 2008(x86). By the way Windows device manager show 4 processors, BUT task manager show only one core. I found that my problem is not new. But solutions, provided by those people did not helped me. By the way, my windows is enterprise version, and as far as I know, it allows up to 8 processor sockets, so the trouble is not, that windows

> Thanks all point about security, I''ll do as follows. > I thought that the point was the following two. > > > 1. Storage place of encrypted password > Should I store it in /etc/xen/passwd ? > Or, should I wait for DB of Xen that will be released in > the future? The xend life cycle management patches were posted by Alistair a couple of months back.

...et_permissions at VERS_4.0 4.16.0 - xs_set_target at VERS_4.0 4.16.0 - xs_strings_to_perms at VERS_4.0 4.16.0 - xs_suspend_evtchn_port at VERS_4.0 4.16.0 - xs_transaction_end at VERS_4.0 4.16.0 - xs_transaction_start at VERS_4.0 4.16.0 - xs_unwatch at VERS_4.0 4.16.0 - xs_watch at VERS_4.0 4.16.0 - xs_write at VERS_4.0 4.16.0 - xs_write_all at VERS_4.0 4.16.0 diff -Nru xen-4.17.3+10-g091466ba55/debian/libxenstore4t64.install xen-4.17.3+10-g091466ba55/debian/libxenstore4t64.install --- xen-4.17.3+10-g091466ba55/debian/libxenstore4t64.install 1970-01-01 00:00:00.000000000 +0000 +++ xen-4.17.3+10-g091466...

..., &term); > } > >- xs_mkdir(xs, "/console"); >- snprintf(path, sizeof(path), "/console/%d", dom->domid); >- xs_mkdir(xs, path); >- strcat(path, "/tty"); >- >+ asprintf(&path, "/console/%d/tty", dom->domid); > xs_write(xs, path, slave, strlen(slave), O_CREAT); >- >- snprintf(path, sizeof(path), "/console/%d/limit", dom->domid); >+ free(path); >+ >+ asprintf(&path, "/console/%d/limit", dom->domid); > data = xs_read(xs, path, &len); > if (data) { >...

The following series of 10 patches is a merge of the xenfb and xenconsoled functionality into the qemu-dm code. The general approach taken is to have qemu-dm provide two machine types - one for xen paravirt, the other for fullyvirt. For compatability the later is the default. The goals overall are to kill LibVNCServer, remove alot of code duplication and/or parallel impls of the same concepts, and

Hi all, this is the long awaited patch series to add xen device model support in qemu; the main author is Anthony Perard. Developing this series we tried to come up with the cleanest possible solution from the qemu point of view, limiting the amount of changes to common code as much as possible. The end result still requires a couple of hooks in piix_pci but overall the impact should be very