From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wen Congyang Subject: [PATCH 6/7 v6] deal with guest panicked event accoring to -onpanic parameter Date: Fri, 06 Jul 2012 17:41:29 +0800 Message-ID: <4FF6B2C9.10302@cn.fujitsu.com> References: <4FF6B188.2060607@cn.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit To: kvm list , qemu-devel , "linux-kernel@vger.kernel.org" , Avi Kivity , "Daniel P. Berrange" , KAMEZAWA Hiroyuki , Jan Kiszka , Gleb Natapov Return-path: In-Reply-To: <4FF6B188.2060607@cn.fujitsu.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+gceq-qemu-devel=gmane.org@nongnu.org Sender: qemu-devel-bounces+gceq-qemu-devel=gmane.org@nongnu.org List-Id: kvm.vger.kernel.org The onpanic parameter can have the following value: 1. none 2. pause 3. poweroff 4. reset The action for each value when the guest is panicked: 1. none: emit QEVENT_GUEST_PANICKED only 2. pause: emit QEVENT_GUEST_PANICKED and pause the guest 3. poweroff: emit QEVENT_GUEST_PANICKED and poweroff the guest 4. reset: emit QEVENT_GUEST_PANICKED and reset the guest Signed-off-by: Wen Congyang --- hw/kvm/pv_event.c | 17 +++++++++++++++++ qemu-options.hx | 15 +++++++++++++++ vl.c | 6 ++++++ 3 files changed, 38 insertions(+), 0 deletions(-) diff --git a/hw/kvm/pv_event.c b/hw/kvm/pv_event.c index d7ded37..890abcd 100644 --- a/hw/kvm/pv_event.c +++ b/hw/kvm/pv_event.c @@ -59,6 +59,23 @@ static void panicked_perform_action(uint32_t panicked_action) } } +int select_panicked_action(const char *p) +{ + if (strcasecmp(p, "none") == 0) { + panicked_action = PANICKED_REPORT; + } else if (strcasecmp(p, "pause") == 0) { + panicked_action = PANICKED_PAUSE; + } else if (strcasecmp(p, "poweroff") == 0) { + panicked_action = PANICKED_POWEROFF; + } else if (strcasecmp(p, "reset") == 0) { + panicked_action = PANICKED_RESET; + } else { + return -1; + } + + return 0; +} + #if defined(KVM_PV_PORT) #include "pv_ioport.c" diff --git a/qemu-options.hx b/qemu-options.hx index 8b66264..4a061bf 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -2743,6 +2743,21 @@ DEF("qtest-log", HAS_ARG, QEMU_OPTION_qtest_log, "-qtest-log LOG specify tracing options\n", QEMU_ARCH_ALL) +DEF("onpanic", HAS_ARG, QEMU_OPTION_onpanic, \ + "-onpanic none|pause|poweroff|reset\n" \ + " action when the guest is panicked [default=none]", + QEMU_ARCH_ALL) +STEXI +@item -onpanic @var{action} + +The @var{action} controls what QEmu will do when the guest is panicked. +The default is @code{none} (emit QEVENT_GUEST_PANICKED only). +Other possible actions are: +@code{pause} (emit QEVENT_GUEST_PANICKED and pause the guest), +@code{poweroff} (emit QEVENT_GUEST_PANICKED and forcefully poweroff the guest), +@code{reset} (emit QEVENT_GUEST_PANICKED and forcefully reset the guest). +ETEXI + HXCOMM This is the last statement. Insert new options before this line! STEXI @end table diff --git a/vl.c b/vl.c index f5cd28d..1a68257 100644 --- a/vl.c +++ b/vl.c @@ -3205,6 +3205,12 @@ int main(int argc, char **argv, char **envp) case QEMU_OPTION_qtest_log: qtest_log = optarg; break; + case QEMU_OPTION_onpanic: + if (select_panicked_action(optarg) == -1) { + fprintf(stderr, "Unknown -onpanic parameter\n"); + exit(1); + } + break; default: os_parse_cmd_args(popt->index, optarg); } -- 1.7.1