From patchwork Wed Jan 12 08:13:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yifei Jiang X-Patchwork-Id: 12710988 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 87081C433EF for ; Wed, 12 Jan 2022 08:13:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1351469AbiALINn (ORCPT ); Wed, 12 Jan 2022 03:13:43 -0500 Received: from szxga02-in.huawei.com ([45.249.212.188]:30269 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1351462AbiALINn (ORCPT ); Wed, 12 Jan 2022 03:13:43 -0500 Received: from kwepemi100008.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4JYgKn5NpSzbjsF; Wed, 12 Jan 2022 16:13:01 +0800 (CST) Received: from kwepemm600017.china.huawei.com (7.193.23.234) by kwepemi100008.china.huawei.com (7.221.188.57) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.20; Wed, 12 Jan 2022 16:13:41 +0800 Received: from huawei.com (10.174.186.236) by kwepemm600017.china.huawei.com (7.193.23.234) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.20; Wed, 12 Jan 2022 16:13:39 +0800 From: Yifei Jiang To: , CC: , , , , , , , , , , , Yifei Jiang , Mingwang Li , Alistair Francis , Anup Patel Subject: [PATCH v5 03/13] target/riscv: Implement function kvm_arch_init_vcpu Date: Wed, 12 Jan 2022 16:13:19 +0800 Message-ID: <20220112081329.1835-4-jiangyifei@huawei.com> X-Mailer: git-send-email 2.26.2.windows.1 In-Reply-To: <20220112081329.1835-1-jiangyifei@huawei.com> References: <20220112081329.1835-1-jiangyifei@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.174.186.236] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To kwepemm600017.china.huawei.com (7.193.23.234) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Get isa info from kvm while kvm init. Signed-off-by: Yifei Jiang Signed-off-by: Mingwang Li Reviewed-by: Alistair Francis Reviewed-by: Anup Patel --- target/riscv/kvm.c | 34 +++++++++++++++++++++++++++++++++- 1 file changed, 33 insertions(+), 1 deletion(-) diff --git a/target/riscv/kvm.c b/target/riscv/kvm.c index 687dd4b621..9e66b4a97f 100644 --- a/target/riscv/kvm.c +++ b/target/riscv/kvm.c @@ -38,6 +38,24 @@ #include "qemu/log.h" #include "hw/loader.h" +static uint64_t kvm_riscv_reg_id(CPURISCVState *env, uint64_t type, + uint64_t idx) +{ + uint64_t id = KVM_REG_RISCV | type | idx; + + switch (riscv_cpu_mxl(env)) { + case MXL_RV32: + id |= KVM_REG_SIZE_U32; + break; + case MXL_RV64: + id |= KVM_REG_SIZE_U64; + break; + default: + g_assert_not_reached(); + } + return id; +} + const KVMCapabilityInfo kvm_arch_required_capabilities[] = { KVM_CAP_LAST_INFO }; @@ -79,7 +97,21 @@ void kvm_arch_init_irq_routing(KVMState *s) int kvm_arch_init_vcpu(CPUState *cs) { - return 0; + int ret = 0; + target_ulong isa; + RISCVCPU *cpu = RISCV_CPU(cs); + CPURISCVState *env = &cpu->env; + uint64_t id; + + id = kvm_riscv_reg_id(env, KVM_REG_RISCV_CONFIG, + KVM_REG_RISCV_CONFIG_REG(isa)); + ret = kvm_get_one_reg(cs, id, &isa); + if (ret) { + return ret; + } + env->misa_ext = isa; + + return ret; } int kvm_arch_msi_data_to_gsi(uint32_t data)