From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49433) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WuFOC-0002H2-Jx for qemu-devel@nongnu.org; Tue, 10 Jun 2014 02:18:41 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WuFNv-0003HE-90 for qemu-devel@nongnu.org; Tue, 10 Jun 2014 02:18:32 -0400 Received: from e23smtp05.au.ibm.com ([202.81.31.147]:55192) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WuFNu-0003GX-GW for qemu-devel@nongnu.org; Tue, 10 Jun 2014 02:18:15 -0400 Received: from /spool/local by e23smtp05.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 10 Jun 2014 16:18:11 +1000 From: Alexey Kardashevskiy Date: Tue, 10 Jun 2014 16:18:01 +1000 Message-Id: <1402381083-17241-3-git-send-email-aik@ozlabs.ru> In-Reply-To: <1402381083-17241-1-git-send-email-aik@ozlabs.ru> References: <1402381083-17241-1-git-send-email-aik@ozlabs.ru> Subject: [Qemu-devel] [PATCH v5 2/4] target-s390x: Migrate to new nmi_monitor_handler() CPU callback List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Peter Maydell , Alexey Kardashevskiy , Alexander Graf , qemu-ppc@nongnu.org, Paolo Bonzini This defines a nmi_monitor_handler() callback for s390 CPU class. This removes #ifdef s390 branch in qmp_inject_nmi so new s390's nmi_monitor_handler() callback is going to be used for NMI. Since nmi_monitor_handler()-calling code is platform independent, CPUState::cpu_index is used instead of S390CPU::env.cpu_num. There should not be any change in behaviour as both @cpu_index and @cpu_num are global CPU numbers. Also, s390_cpu_restart() takes care of preforming operations in the specific CPU thread so no extra measure is required here either. Since the only error s390_cpu_restart() can return is ENOSYS, convert it to QERR_UNSUPPORTED. Signed-off-by: Alexey Kardashevskiy --- Changes: v5: * added ENOSYS -> QERR_UNSUPPORTED, qapi/qmp/qerror.h was added for this v4: * s/\/nmi_monitor_handler/ v3: * now contains both old code removal and new code insertion, easier to track changes --- Is there any good reason to have @cpu_num in addition to @cpu_index? Just asking :) --- cpus.c | 14 -------------- target-s390x/cpu.c | 9 +++++++++ 2 files changed, 9 insertions(+), 14 deletions(-) diff --git a/cpus.c b/cpus.c index b9d6602..87188ce 100644 --- a/cpus.c +++ b/cpus.c @@ -1480,20 +1480,6 @@ void qmp_inject_nmi(Error **errp) apic_deliver_nmi(cpu->apic_state); } } -#elif defined(TARGET_S390X) - CPUState *cs; - S390CPU *cpu; - - CPU_FOREACH(cs) { - cpu = S390_CPU(cs); - if (cpu->env.cpu_num == monitor_get_cpu_index()) { - if (s390_cpu_restart(S390_CPU(cs)) == -1) { - error_set(errp, QERR_UNSUPPORTED); - return; - } - break; - } - } #else CPUState *cs = qemu_get_cpu(monitor_get_cpu_index()); CPUClass *cc = CPU_GET_CLASS(cs); diff --git a/target-s390x/cpu.c b/target-s390x/cpu.c index c3082b7..8f40bcc 100644 --- a/target-s390x/cpu.c +++ b/target-s390x/cpu.c @@ -27,6 +27,7 @@ #include "qemu-common.h" #include "qemu/timer.h" #include "hw/hw.h" +#include "qapi/qmp/qerror.h" #ifndef CONFIG_USER_ONLY #include "sysemu/arch_init.h" #endif @@ -160,6 +161,13 @@ static void s390_cpu_full_reset(CPUState *s) tlb_flush(s, 1); } +static void s390_cpu_nmi_monitor_handler(CPUState *cs, Error **errp) +{ + if (s390_cpu_restart(S390_CPU(cs))) { + error_set(errp, QERR_UNSUPPORTED); + } +} + #if !defined(CONFIG_USER_ONLY) static void s390_cpu_machine_reset_cb(void *opaque) { @@ -245,6 +253,7 @@ static void s390_cpu_class_init(ObjectClass *oc, void *data) scc->cpu_reset = s390_cpu_reset; scc->initial_cpu_reset = s390_cpu_initial_reset; cc->reset = s390_cpu_full_reset; + cc->nmi_monitor_handler = s390_cpu_nmi_monitor_handler; cc->has_work = s390_cpu_has_work; cc->do_interrupt = s390_cpu_do_interrupt; cc->dump_state = s390_cpu_dump_state; -- 2.0.0