From patchwork Thu Oct 25 03:42:38 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [v11,6/6] allower the user to disable pv event support X-Patchwork-Submitter: Hu Tao X-Patchwork-Id: 194036 Message-Id: <1351136563-15073-6-git-send-email-hutao@cn.fujitsu.com> To: kvm list , qemu-devel , "linux-kernel@vger.kernel.org" , Avi Kivity , "Daniel P. Berrange" , KAMEZAWA Hiroyuki , Jan Kiszka , Gleb Natapov , Blue Swirl , Eric Blake , Andrew Jones , Marcelo Tosatti , Sasha Levin , Luiz Capitulino Date: Thu, 25 Oct 2012 11:42:38 +0800 From: Hu Tao List-Id: From: Wen Congyang Signed-off-by: Wen Congyang --- hw/pc_piix.c | 6 +++++- qemu-config.c | 4 ++++ qemu-options.hx | 3 ++- 3 files changed, 11 insertions(+), 2 deletions(-) diff --git a/hw/pc_piix.c b/hw/pc_piix.c index fb67dc1..864d356 100644 --- a/hw/pc_piix.c +++ b/hw/pc_piix.c @@ -149,6 +149,8 @@ static void pc_init1(MemoryRegion *system_memory, MemoryRegion *pci_memory; MemoryRegion *rom_memory; void *fw_cfg = NULL; + QemuOptsList *list = qemu_find_opts("machine"); + bool enable_pv_event; pc_cpus_init(cpu_model); @@ -287,7 +289,9 @@ static void pc_init1(MemoryRegion *system_memory, pc_pci_device_init(pci_bus); } - if (kvm_enabled()) { + enable_pv_event = qemu_opt_get_bool(QTAILQ_FIRST(&list->head), + "enable_pv_event", false); + if (kvm_enabled() && enable_pv_event) { kvm_pv_event_init(isa_bus); } } diff --git a/qemu-config.c b/qemu-config.c index cd1ec21..db8f828 100644 --- a/qemu-config.c +++ b/qemu-config.c @@ -619,6 +619,10 @@ static QemuOptsList qemu_machine_opts = { .name = "mem-merge", .type = QEMU_OPT_BOOL, .help = "enable/disable memory merge support", + }, { + .name = "enable_pv_event", + .type = QEMU_OPT_BOOL, + .help = "handle pv event" }, { /* End of list */ } }, diff --git a/qemu-options.hx b/qemu-options.hx index 46f0539..de667d6 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -35,7 +35,8 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \ " kernel_irqchip=on|off controls accelerated irqchip support\n" " kvm_shadow_mem=size of KVM shadow MMU\n" " dump-guest-core=on|off include guest memory in a core dump (default=on)\n" - " mem-merge=on|off controls memory merge support (default: on)\n", + " mem-merge=on|off controls memory merge support (default: on)\n" + " enable_pv_event=on|off controls pv event support\n", QEMU_ARCH_ALL) STEXI @item -machine [type=]@var{name}[,prop=@var{value}[,...]]