From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthony PERARD Subject: [PATCH] libxl: Use -vcpu_avail with qemu-xen. Date: Fri, 31 May 2013 17:39:21 +0100 Message-ID: <1370018361-14556-1-git-send-email-anthony.perard@citrix.com> References: <1370017993-13437-1-git-send-email-anthony.perard@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1370017993-13437-1-git-send-email-anthony.perard@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Xen Devel Cc: Anthony PERARD , Stefano Stabellini List-Id: xen-devel@lists.xenproject.org This require the series CPU hotplug for qemu-xen. Note: this patch is valid only for 4.3 as the -vcpu_avail will probably not be upstream to Qemu. Signed-off-by: Anthony PERARD --- tools/libxl/libxl_dm.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/libxl/libxl_dm.c b/tools/libxl/libxl_dm.c index 1e3a9f4..2db2372 100644 --- a/tools/libxl/libxl_dm.c +++ b/tools/libxl/libxl_dm.c @@ -530,11 +530,17 @@ static char ** libxl__build_device_model_args_new(libxl__gc *gc, flexarray_append(dm_args, "-smp"); if (b_info->avail_vcpus.size) { int nr_set_cpus = 0; + char *s; nr_set_cpus = libxl_bitmap_count_set(&b_info->avail_vcpus); flexarray_append(dm_args, libxl__sprintf(gc, "%d,maxcpus=%d", nr_set_cpus, b_info->max_vcpus)); + + s = libxl_bitmap_to_hex_string(CTX, &b_info->avail_vcpus); + flexarray_vappend(dm_args, "-vcpu_avail", + libxl__sprintf(gc, "%s", s), NULL); + free(s); } else flexarray_append(dm_args, libxl__sprintf(gc, "%d", b_info->max_vcpus)); -- Anthony PERARD