From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthony PERARD Subject: [PATCH 0/4] CPU hotplug port from qemu-traditionnal to qemu-xen for 4.3. Date: Fri, 31 May 2013 17:33:09 +0100 Message-ID: <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: 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 Hi all, This series ports few patches from qemu-xen-traditionnal to qemu-xen (upstream). There is as little modification as possible on those patches so they *can not* be upstream as is. So this is only for 4.3. A proper series will be done for 4.4. There make possible to have CPU hotplug on qemu-xen. A patch for libxl will follow, which make use of the old command line -vcpu_avail with qemu-xen. This command line will probably not be upstream. BUG: There is an issue with SeaBIOS (used with qemu-xen). At SMP initialisation, SeaBIOS will count the number of CPU running, and the number is always equal to maxvcpu when SeaBIOS expect less. This happen when we have something like: vcpus = 2 maxvcpus = 8 in the VM config file. Linux is fine with this and will use only $vcpus. So the probleme is: an infinit loop in SeaBIOS. Regards, Ian Jackson (4): HVM vcpu add/remove: qemu logic for vcpu add/revmoe Fix vcpu hotplug bug: get correct vcpu_avail bitmap Update vcpu hotplug logic Implement 'xm vcpu-set' command for HVM guest hmp-commands.hx | 9 ++++++ hw/acpi_piix4.c | 88 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++- monitor.c | 18 ++++++++++++ qemu-options.hx | 3 ++ sysemu.h | 4 +++ vl.c | 55 ++++++++++++++++++++++++++++++++++++ xen-all.c | 65 ++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 241 insertions(+), 1 deletion(-) -- Anthony PERARD