From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47845) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fx7ZY-0006O0-Po for qemu-devel@nongnu.org; Tue, 04 Sep 2018 05:24:33 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fx7ZV-00069D-Hb for qemu-devel@nongnu.org; Tue, 04 Sep 2018 05:24:32 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:54920 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fx7ZV-00068d-BU for qemu-devel@nongnu.org; Tue, 04 Sep 2018 05:24:29 -0400 Received: from pps.filterd (m0098417.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w849JGjk088458 for ; Tue, 4 Sep 2018 05:24:28 -0400 Received: from e06smtp01.uk.ibm.com (e06smtp01.uk.ibm.com [195.75.94.97]) by mx0a-001b2d01.pphosted.com with ESMTP id 2m9nxjm0ba-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 04 Sep 2018 05:24:28 -0400 Received: from localhost by e06smtp01.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 4 Sep 2018 10:24:26 +0100 From: Nikunj A Dadhania Date: Tue, 4 Sep 2018 14:54:18 +0530 Message-Id: <20180904092418.2380-1-nikunj@linux.ibm.com> Subject: [Qemu-devel] [PATCH v3] target/ppc/kvm: set vcpu as online/offline List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au Cc: qemu-devel@nongnu.org, Nikunj A Dadhania , paulus@samba.org Set the newly added register(KVM_REG_PPC_ONLINE) to indicate if the vcpu is online(1) or offline(0) KVM will use this information to set the RWMR register, which controls the PURR and SPURR accumulation. CC: paulus@samba.org Signed-off-by: Nikunj A Dadhania --- hw/ppc/spapr_cpu_core.c | 1 + hw/ppc/spapr_rtas.c | 2 ++ target/ppc/kvm.c | 9 +++++++++ target/ppc/kvm_ppc.h | 7 +++++++ 4 files changed, 19 insertions(+) diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c index 876f0b3d9d..9863221756 100644 --- a/hw/ppc/spapr_cpu_core.c +++ b/hw/ppc/spapr_cpu_core.c @@ -90,6 +90,7 @@ void spapr_cpu_set_entry_state(PowerPCCPU *cpu, target_ulong nip, target_ulong r env->nip = nip; env->gpr[3] = r3; + kvmppc_set_reg_ppc_online(cpu, 1); CPU(cpu)->halted = 0; /* Enable Power-saving mode Exit Cause exceptions */ ppc_store_lpcr(cpu, env->spr[SPR_LPCR] | pcc->lpcr_pm); diff --git a/hw/ppc/spapr_rtas.c b/hw/ppc/spapr_rtas.c index 4ac96bc94b..d6a0952154 100644 --- a/hw/ppc/spapr_rtas.c +++ b/hw/ppc/spapr_rtas.c @@ -33,6 +33,7 @@ #include "sysemu/device_tree.h" #include "sysemu/cpus.h" #include "sysemu/hw_accel.h" +#include "kvm_ppc.h" #include "hw/ppc/spapr.h" #include "hw/ppc/spapr_vio.h" @@ -207,6 +208,7 @@ static void rtas_stop_self(PowerPCCPU *cpu, sPAPRMachineState *spapr, * guest */ ppc_store_lpcr(cpu, env->spr[SPR_LPCR] & ~pcc->lpcr_pm); cs->halted = 1; + kvmppc_set_reg_ppc_online(cpu, 0); qemu_cpu_kick(cs); } diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c index 9211ee2ee1..7be8081968 100644 --- a/target/ppc/kvm.c +++ b/target/ppc/kvm.c @@ -2785,3 +2785,12 @@ bool kvmppc_pvr_workaround_required(PowerPCCPU *cpu) return !kvmppc_is_pr(cs->kvm_state); } + +void kvmppc_set_reg_ppc_online(PowerPCCPU *cpu, unsigned int online) +{ + CPUState *cs = CPU(cpu); + + if (kvm_enabled()) { + kvm_set_one_reg(cs, KVM_REG_PPC_ONLINE, &online); + } +} diff --git a/target/ppc/kvm_ppc.h b/target/ppc/kvm_ppc.h index 657582bb32..f696c6e498 100644 --- a/target/ppc/kvm_ppc.h +++ b/target/ppc/kvm_ppc.h @@ -72,6 +72,7 @@ bool kvmppc_pvr_workaround_required(PowerPCCPU *cpu); bool kvmppc_hpt_needs_host_contiguous_pages(void); void kvm_check_mmu(PowerPCCPU *cpu, Error **errp); +void kvmppc_set_reg_ppc_online(PowerPCCPU *cpu, unsigned int online); #else @@ -187,6 +188,12 @@ static inline target_ulong kvmppc_configure_v3_mmu(PowerPCCPU *cpu, return 0; } +static inline void kvmppc_set_reg_ppc_online(PowerPCCPU *cpu, + unsigned int online) +{ + return; +} + #ifndef CONFIG_USER_ONLY static inline bool kvmppc_spapr_use_multitce(void) { -- 2.14.4