From nobody Fri Dec 19 19:20:16 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail header.i=@wdc.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=wdc.com ARC-Seal: i=1; a=rsa-sha256; t=1575916469; cv=none; d=zohomail.com; s=zohoarc; b=gkaAgKWQbuwYMxSZ5T7qhQeXHK2fax/xDoLL96+r8hkVSBhKK0vy9sPlzHuPl5eIiZj6pgpEURcvFz6GocXdEiMqaKw8dD5lGntY8KA/vLmpmIKPHpwOFmGBzi3tmDyEnfKTzqFPwbp0zadco6C5cWh3/eXB7qB3yy60wIdQRVQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1575916469; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=itqLLUWC7fG5s0jc2kT5oVPwpvBERv2f9r09oF33NNE=; b=M+WY1WbzPf3XqCDrsjVkuvRRS3hjxqvBs9EQjTqcdqZEc+NN81k467baplN39BsDJV3XVHfJMyrkEQUENphIvjTP2BcwfprfGjik2GhjJuCQ28nnHHZj6rbEHpJvmmrhkf33wHxBz1ATsGH9nx8jr2PxpV3K8BLpmuCo7HLTZlk= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail header.i=@wdc.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1575916469854467.1431677089214; Mon, 9 Dec 2019 10:34:29 -0800 (PST) Received: from localhost ([::1]:44646 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ieNrX-0005HM-RO for importer@patchew.org; Mon, 09 Dec 2019 13:34:27 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:34848) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ieNaq-0007Qb-4p for qemu-devel@nongnu.org; Mon, 09 Dec 2019 13:17:13 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ieNap-0007Ua-0d for qemu-devel@nongnu.org; Mon, 09 Dec 2019 13:17:11 -0500 Received: from esa1.hgst.iphmx.com ([68.232.141.245]:28155) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ieNao-0007TS-Oy; Mon, 09 Dec 2019 13:17:10 -0500 Received: from h199-255-45-15.hgst.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 10 Dec 2019 02:17:09 +0800 Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Dec 2019 10:11:25 -0800 Received: from risc6-mainframe.sdcorp.global.sandisk.com (HELO risc6-mainframe.int.fusionio.com) ([10.196.158.235]) by uls-op-cesaip02.wdc.com with ESMTP; 09 Dec 2019 10:17:09 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1575915430; x=1607451430; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=hdFYTa8nuoS5vpBd2+mk08dQE6Uw8kRTfLExTl5You8=; b=f64il1Mq3wTP/MN1lYtWpgEwr64aVLj9cVhdDI6Jy7B4tqzMQhNu0jTI lUXL9M4p1gC3+uv26U7KcFDoKZ7lTrzbiWrI4uXTTRM9z2BbMCuitz+Ky +Uiy0KX436Ntm5EyCL68+VXUvU/2g3Q24IBSd15ULui4KV9YURxHaHFZr a3Tuc9Dm7tSt0YGKKj18t6y+09Fv/5XkdGNqhpPhfaW8HCgyrdFtTi+Xx 72jRy/HIo47PFCpdxYe/JfsnoAdzZTSqWz0pqKoEMdKwlfL2IPkGrcpRz Mqx+SwoeR0xetraA1j2Fv1QUg9aBm6awrDae5JKGleD5//So1XIWblLHo w==; IronPort-SDR: aMGicJ7DLp62+7ltBERBQSctdAwKQ63c5Bovv7qX6D/0OWypAy8uruDcZC0MgJL+eXkBu27jnm 9LkHLQitimHNnFXziVEkfgPeg6TG+f06eU5OIgFVdgcsMt9eNpWcbl34Vkcg7baOEXvCauw/P9 gPClDcKH9l36opjhG/fFIGSQdROJLwNwRSX3vsZsZIidvR557z1RrVFVlRLuZt0yxTfFHeLx15 rxEcMr1S4x7gGoyR2EUv3YcPVu+UNEMeY6ers0HrygRyyJpeB5+zbFCKcesmr4lJ9ergK7mKBs Ia0= X-IronPort-AV: E=Sophos;i="5.69,296,1571673600"; d="scan'208";a="232461552" IronPort-SDR: awNa/K5zzGBqo/fwTpRG+/BpBcWpWktHxo0rAv+B6co93U6fhnZdyPx9TtLlFOCDlcn/nCxhoa eZoRqo8bnkjfSLtOFedZ11asLx61u71mcxlzZs5asGDQSPWM1qHQp71And7WrGPWn6LmK/wyNY 571wQgesBT4YX4hos6hw5Nl9tGkHlPZm5RXitU7hFs7qarPAisSfayWA/264fZ9yWfRN6KF/YD fADjcy/Jwma3w+wL4J4HMINkkNyrnZonGaXNg9rUaULbNpOv0ROICw9CzBzTke8y0s4kumutig AwxXjrcCytfKsev7a01SNU3u IronPort-SDR: 9DGjPov6QmDxhHIyLlngTjgf7esmiNzf5y5oTu0rpDuEPX4m52MPTPGT0knRYeqm06FPn1dixJ XHVlRpZpEL0ZasB116Dj5QC1MrqY7wDQAQ20F5tZvoojvqEJ3SThDIyg7jLAjcbhgUIOMSHS63 gwdbTjfo/B9w1j1ceTmJgeQObmkKw4ZI9VGuVkZ2JhAq0/U5QN7TaO5X27HhwqwWeuA4GSqzDm mi4i1BLHkqjQvZ/sHZYdRTo6WmsouUeLt1Beg+YuqcfgRtDzAOd+MAwYidcu4I3MUYEWrdyALs G1M= WDCIronportException: Internal From: Alistair Francis To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v1 18/36] target/riscv: Extend the MIE CSR to support virtulisation Date: Mon, 9 Dec 2019 10:11:27 -0800 Message-Id: <6ec43c1bf0886d917fcd88d3751d72def5507db2.1575914822.git.alistair.francis@wdc.com> X-Mailer: git-send-email 2.24.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: FreeBSD 9.x [fuzzy] X-Received-From: 68.232.141.245 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alistair.francis@wdc.com, palmer@dabbelt.com, alistair23@gmail.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Signed-off-by: Alistair Francis Reviewed-by: Palmer Dabbelt --- target/riscv/csr.c | 24 ++++++++++++++++++++---- 1 file changed, 20 insertions(+), 4 deletions(-) diff --git a/target/riscv/csr.c b/target/riscv/csr.c index fc38c45a7e..54edfb280e 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -244,8 +244,10 @@ static int read_timeh(CPURISCVState *env, int csrno, t= arget_ulong *val) #define S_MODE_INTERRUPTS (MIP_SSIP | MIP_STIP | MIP_SEIP) #define VS_MODE_INTERRUPTS (MIP_VSSIP | MIP_VSTIP | MIP_VSEIP) =20 -static const target_ulong delegable_ints =3D S_MODE_INTERRUPTS; -static const target_ulong all_ints =3D M_MODE_INTERRUPTS | S_MODE_INTERRUP= TS; +static const target_ulong delegable_ints =3D S_MODE_INTERRUPTS | + VS_MODE_INTERRUPTS; +static const target_ulong all_ints =3D M_MODE_INTERRUPTS | S_MODE_INTERRUP= TS | + VS_MODE_INTERRUPTS; static const target_ulong delegable_excps =3D (1ULL << (RISCV_EXCP_INST_ADDR_MIS)) | (1ULL << (RISCV_EXCP_INST_ACCESS_FAULT)) | @@ -631,13 +633,27 @@ static int write_sstatus(CPURISCVState *env, int csrn= o, target_ulong val) =20 static int read_sie(CPURISCVState *env, int csrno, target_ulong *val) { - *val =3D env->mie & env->mideleg; + if (riscv_cpu_virt_enabled(env)) { + /* Tell the guest the VS bits, shifted to the S bit locations */ + *val =3D (env->mie & env->mideleg & VS_MODE_INTERRUPTS) >> 1; + } else { + *val =3D env->mie & env->mideleg; + } return 0; } =20 static int write_sie(CPURISCVState *env, int csrno, target_ulong val) { - target_ulong newval =3D (env->mie & ~env->mideleg) | (val & env->midel= eg); + target_ulong newval; + + if (riscv_cpu_virt_enabled(env)) { + /* Shift the guests S bits to VS */ + newval =3D (env->mie & ~VS_MODE_INTERRUPTS) | + ((val << 1) & VS_MODE_INTERRUPTS); + } else { + newval =3D (env->mie & ~S_MODE_INTERRUPTS) | (val & S_MODE_INTERRU= PTS); + } + return write_mie(env, CSR_MIE, newval); } =20 --=20 2.24.0