From patchwork Tue Mar 3 00:48:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Palmer Dabbelt X-Patchwork-Id: 1247978 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20161025 header.b=nT/GxoRv; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 48WdsJ3zmBz9sRf for ; Tue, 3 Mar 2020 11:57:40 +1100 (AEDT) Received: from localhost ([::1]:40426 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j8vsQ-00082m-GM for incoming@patchwork.ozlabs.org; Mon, 02 Mar 2020 19:57:38 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:45125) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j8vkY-0001lK-UE for qemu-devel@nongnu.org; Mon, 02 Mar 2020 19:49:31 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j8vkX-0004Kx-Qp for qemu-devel@nongnu.org; Mon, 02 Mar 2020 19:49:30 -0500 Received: from mail-pj1-x1032.google.com ([2607:f8b0:4864:20::1032]:40182) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1j8vkX-0004Kg-LD for qemu-devel@nongnu.org; Mon, 02 Mar 2020 19:49:29 -0500 Received: by mail-pj1-x1032.google.com with SMTP id 12so536209pjb.5 for ; Mon, 02 Mar 2020 16:49:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding:cc:from:to; bh=dPJ9PIVmXWg5PPkPFCD2Z/Ek444prHrmA3NLPOaiVyc=; b=nT/GxoRvW0mVjcPi8nNIMMS6rvMQF57vXDS1/vt6ITFUUpwiQPAyBy4JLA8TJKNPkX KzukUrwyLzpgB8d1Se03t7rPJYSVhgwnKTD4N8kKfLch4RW2sCRmM3CLAfHNsaQCsD+T g6fPqnnTKGLuaYCtE9RHoz54nJoa8jLhvdyOcDzmim21HKfgS/yxis3MqpP5iJAfz5dB VWJFczhC1yJAePMWoWEhJ4QC2J4AySb/xgU8MP3hFJNwalagNsHKqD5rcsWJ6IL2CRrE Icp9+uKu6tBp8SPkiXcgCefiWoyaktZhuTn6OCTPS2K5a0iUII4pAPuVi/gTpbvB7pwa hDCQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:cc:from:to; bh=dPJ9PIVmXWg5PPkPFCD2Z/Ek444prHrmA3NLPOaiVyc=; b=bFJ+rWjYLZmjh22NE8gX/eAlmfgPoffCkwLPPqwYlcqNDfAq1P8BZZ5l/wfXIhhqzf 4ZFsdVz8y2THMXQJOPynZxFEYWFLLF0JuZcxAubobPWQ0oEjh0mvO2nNTyocpkDewsFO 6dxTDD6pcXJfv2CoOF2eJXb0dJntCYcJaVX3lsQQe0i+i/3XuF6yQdq0FFOQ6TaZ4P3h rlN/e3UpKSGQ8o5PlJmM5oUJPxZAdRxW+YzCRoLUXN2aNfFWFutk5ACFY9TbxS4YPQWb iG3Q3wTJkS9Hfn7770x/g0EqSuSSQ5p+3PVFJRrWrDf78kHqsLcEpWuy/tVrHNxVmDpm 8jfg== X-Gm-Message-State: ANhLgQ1oJFLZJ0SYFvnMTc0nKFl2srh0fCoBzuYK4owNs9SQiQzrTvmX 9McO6B7NUL07Jz7qd5LPQ9N1IyQalhboCQ== X-Google-Smtp-Source: ADFU+vsmG70ZPllkr7PucjKutAoAb3BKaC7mz4QLoDpdvrQIVvTNMMlECLHUD14e3I2PPHiid4Wsdw== X-Received: by 2002:a17:902:ed14:: with SMTP id b20mr1727849pld.197.1583196568345; Mon, 02 Mar 2020 16:49:28 -0800 (PST) Received: from localhost ([2620:0:1000:2514:23a5:d584:6a92:3e3c]) by smtp.gmail.com with ESMTPSA id x65sm9197758pfd.34.2020.03.02.16.49.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Mar 2020 16:49:27 -0800 (PST) Subject: [PULL 18/38] target/riscv: Add support for virtual interrupt setting Date: Mon, 2 Mar 2020 16:48:28 -0800 Message-Id: <20200303004848.136788-19-palmerdabbelt@google.com> X-Mailer: git-send-email 2.25.0.265.gbab2e86ba0-goog In-Reply-To: <20200303004848.136788-1-palmerdabbelt@google.com> References: <20200303004848.136788-1-palmerdabbelt@google.com> MIME-Version: 1.0 Cc: qemu-riscv@nongnu.org, qemu-devel@nongnu.org, Alistair Francis , Palmer Dabbelt From: Palmer Dabbelt To: Peter Maydell X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::1032 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: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Alistair Francis Signed-off-by: Alistair Francis Reviewed-by: Palmer Dabbelt Signed-off-by: Palmer Dabbelt --- target/riscv/cpu_helper.c | 33 ++++++++++++++++++++++++++++----- 1 file changed, 28 insertions(+), 5 deletions(-) diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c index 9d5a06499f..ccf67aca05 100644 --- a/target/riscv/cpu_helper.c +++ b/target/riscv/cpu_helper.c @@ -37,13 +37,36 @@ int riscv_cpu_mmu_index(CPURISCVState *env, bool ifetch) #ifndef CONFIG_USER_ONLY static int riscv_cpu_local_irq_pending(CPURISCVState *env) { + target_ulong irqs; + target_ulong mstatus_mie = get_field(env->mstatus, MSTATUS_MIE); target_ulong mstatus_sie = get_field(env->mstatus, MSTATUS_SIE); - target_ulong pending = env->mip & env->mie; - target_ulong mie = env->priv < PRV_M || (env->priv == PRV_M && mstatus_mie); - target_ulong sie = env->priv < PRV_S || (env->priv == PRV_S && mstatus_sie); - target_ulong irqs = (pending & ~env->mideleg & -mie) | - (pending & env->mideleg & -sie); + target_ulong hs_mstatus_sie = get_field(env->mstatus_hs, MSTATUS_SIE); + + target_ulong pending = env->mip & env->mie & + ~(MIP_VSSIP | MIP_VSTIP | MIP_VSEIP); + target_ulong vspending = (env->mip & env->mie & + (MIP_VSSIP | MIP_VSTIP | MIP_VSEIP)) >> 1; + + target_ulong mie = env->priv < PRV_M || + (env->priv == PRV_M && mstatus_mie); + target_ulong sie = env->priv < PRV_S || + (env->priv == PRV_S && mstatus_sie); + target_ulong hs_sie = env->priv < PRV_S || + (env->priv == PRV_S && hs_mstatus_sie); + + if (riscv_cpu_virt_enabled(env)) { + target_ulong pending_hs_irq = pending & -hs_sie; + + if (pending_hs_irq) { + riscv_cpu_set_force_hs_excep(env, FORCE_HS_EXCEP); + return ctz64(pending_hs_irq); + } + + pending = vspending; + } + + irqs = (pending & ~env->mideleg & -mie) | (pending & env->mideleg & -sie); if (irqs) { return ctz64(irqs); /* since non-zero */