From patchwork Thu Jan 10 15:29:27 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [7/7,v2] KVM regsync: S390 Relax register synchronization parameters Date: Thu, 10 Jan 2013 05:29:27 -0000 From: "Jason J. Herne" X-Patchwork-Id: 211071 Message-Id: <1357831767-4049-1-git-send-email-jjherne@us.ibm.com> To: agraf@suse.de, borntraeger@de.ibm.com, aliguori@us.ibm.com, mtosatti@redhat.com, qemu-devel@nongnu.org, R65777@freescale.com, jan.kiszka@siemens.com Cc: "Jason J. Herne" From: "Jason J. Herne" Some S390 code paths do not need to synchronize the full register state. This patch changes those paths to only synchronize the runtime register set. Signed-off-by: Jason J. Herne Reviewed-by: Christian Borntraeger --- target-s390x/kvm.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c index 81fe1a7..d338078 100644 --- a/target-s390x/kvm.c +++ b/target-s390x/kvm.c @@ -354,7 +354,7 @@ static int kvm_sclp_service_call(S390CPU *cpu, struct kvm_run *run, uint64_t code; int r = 0; - cpu_synchronize_state(env, KVM_REGSYNC_FULL_STATE); + cpu_synchronize_state(env, KVM_REGSYNC_RUNTIME_STATE); sccb = env->regs[ipbh0 & 0xf]; code = env->regs[(ipbh0 & 0xf0) >> 4]; @@ -388,7 +388,7 @@ static int handle_priv(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1) static int handle_hypercall(CPUS390XState *env, struct kvm_run *run) { - cpu_synchronize_state(env, KVM_REGSYNC_FULL_STATE); + cpu_synchronize_state(env, KVM_REGSYNC_RUNTIME_STATE); env->regs[2] = s390_virtio_hypercall(env, env->regs[2], env->regs[1]); return 0; @@ -463,7 +463,7 @@ static int handle_sigp(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1) S390CPU *target_cpu; CPUS390XState *target_env; - cpu_synchronize_state(env, KVM_REGSYNC_FULL_STATE); + cpu_synchronize_state(env, KVM_REGSYNC_RUNTIME_STATE); /* get order code */ order_code = run->s390_sieic.ipb >> 28;