From nobody Mon Nov 25 11:50:51 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.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=eik.bme.hu Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1715556527218614.3432399325401; Sun, 12 May 2024 16:28:47 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s6Ibu-0001Gs-2W; Sun, 12 May 2024 19:28:06 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s6Ibq-0001F7-NO; Sun, 12 May 2024 19:28:02 -0400 Received: from zero.eik.bme.hu ([152.66.115.2]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s6Ibp-0000LH-06; Sun, 12 May 2024 19:28:02 -0400 Received: from zero.eik.bme.hu (localhost [127.0.0.1]) by zero.eik.bme.hu (Postfix) with ESMTP id 8062B4E6775; Mon, 13 May 2024 01:27:59 +0200 (CEST) Received: from zero.eik.bme.hu ([127.0.0.1]) by zero.eik.bme.hu (zero.eik.bme.hu [127.0.0.1]) (amavisd-new, port 10028) with ESMTP id rIDf1s9wHB9C; Mon, 13 May 2024 01:27:57 +0200 (CEST) Received: by zero.eik.bme.hu (Postfix, from userid 432) id 8AA164E676F; Mon, 13 May 2024 01:27:57 +0200 (CEST) X-Virus-Scanned: amavisd-new at eik.bme.hu Message-Id: <8b83d8228a471d9be431114aa0bc449b20c7c351.1715555763.git.balaton@eik.bme.hu> In-Reply-To: References: From: BALATON Zoltan Subject: [PATCH v7 24/61] target/ppc/mmu_common.c: Split off real mode handling from get_physical_address_wtlb() MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Cc: Nicholas Piggin , Daniel Henrique Barboza Date: Mon, 13 May 2024 01:27:57 +0200 (CEST) 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; Received-SPF: pass client-ip=152.66.115.2; envelope-from=balaton@eik.bme.hu; helo=zero.eik.bme.hu X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1715556528136100003 Content-Type: text/plain; charset="utf-8" Add ppc_real_mode_xlate() to handle real mode translation and allow removing this case from ppc_jumbo_xlate(). Signed-off-by: BALATON Zoltan Reviewed-by: Nicholas Piggin --- target/ppc/mmu_common.c | 46 ++++++++++++++++++++++++----------------- 1 file changed, 27 insertions(+), 19 deletions(-) diff --git a/target/ppc/mmu_common.c b/target/ppc/mmu_common.c index 8599106f75..ab912da821 100644 --- a/target/ppc/mmu_common.c +++ b/target/ppc/mmu_common.c @@ -1117,23 +1117,12 @@ int get_physical_address_wtlb(CPUPPCState *env, mmu= _ctx_t *ctx, MMUAccessType access_type, int type, int mmu_idx) { - bool real_mode =3D (type =3D=3D ACCESS_CODE) ? !FIELD_EX64(env->msr, M= SR, IR) - : !FIELD_EX64(env->msr, MSR, DR= ); - if (real_mode) { - ctx->raddr =3D eaddr; - ctx->prot =3D PAGE_RWX; - return 0; - } - switch (env->mmu_model) { case POWERPC_MMU_SOFT_6xx: return mmu6xx_get_physical_address(env, ctx, eaddr, access_type, t= ype); case POWERPC_MMU_SOFT_4xx: return mmu40x_get_physical_address(env, &ctx->raddr, &ctx->prot, e= addr, access_type); - case POWERPC_MMU_REAL: - cpu_abort(env_cpu(env), - "PowerPC in real mode do not do any translation\n"); default: cpu_abort(env_cpu(env), "Unknown or invalid MMU model\n"); } @@ -1251,6 +1240,24 @@ static bool ppc_booke_xlate(PowerPCCPU *cpu, vaddr e= addr, return false; } =20 +static bool ppc_real_mode_xlate(PowerPCCPU *cpu, vaddr eaddr, + MMUAccessType access_type, + hwaddr *raddrp, int *psizep, int *protp) +{ + CPUPPCState *env =3D &cpu->env; + + if (access_type =3D=3D MMU_INST_FETCH ? !FIELD_EX64(env->msr, MSR, IR) + : !FIELD_EX64(env->msr, MSR, DR)) { + *raddrp =3D eaddr; + *protp =3D PAGE_RWX; + *psizep =3D TARGET_PAGE_BITS; + return true; + } else if (env->mmu_model =3D=3D POWERPC_MMU_REAL) { + cpu_abort(CPU(cpu), "PowerPC in real mode shold not do translation= \n"); + } + return false; +} + /* Perform address translation */ /* TODO: Split this by mmu_model. */ static bool ppc_jumbo_xlate(PowerPCCPU *cpu, vaddr eaddr, @@ -1264,6 +1271,10 @@ static bool ppc_jumbo_xlate(PowerPCCPU *cpu, vaddr e= addr, int type; int ret; =20 + if (ppc_real_mode_xlate(cpu, eaddr, access_type, raddrp, psizep, protp= )) { + return true; + } + if (access_type =3D=3D MMU_INST_FETCH) { /* code access */ type =3D ACCESS_CODE; @@ -1303,11 +1314,8 @@ static bool ppc_jumbo_xlate(PowerPCCPU *cpu, vaddr e= addr, env->spr[SPR_40x_DEAR] =3D eaddr; env->spr[SPR_40x_ESR] =3D 0x00000000; break; - case POWERPC_MMU_REAL: - cpu_abort(cs, "PowerPC in real mode should never raise " - "any MMU exceptions\n"); default: - cpu_abort(cs, "Unknown or invalid MMU model\n"); + g_assert_not_reached(); } break; case -2: @@ -1359,11 +1367,8 @@ static bool ppc_jumbo_xlate(PowerPCCPU *cpu, vaddr e= addr, env->spr[SPR_40x_ESR] =3D 0x00000000; } break; - case POWERPC_MMU_REAL: - cpu_abort(cs, "PowerPC in real mode should never raise " - "any MMU exceptions\n"); default: - cpu_abort(cs, "Unknown or invalid MMU model\n"); + g_assert_not_reached(); } break; case -2: @@ -1457,6 +1462,9 @@ bool ppc_xlate(PowerPCCPU *cpu, vaddr eaddr, MMUAcces= sType access_type, case POWERPC_MMU_BOOKE206: return ppc_booke_xlate(cpu, eaddr, access_type, raddrp, psizep, protp, mmu_idx, guest_visible); + case POWERPC_MMU_REAL: + return ppc_real_mode_xlate(cpu, eaddr, access_type, raddrp, psizep, + protp); case POWERPC_MMU_MPC8xx: cpu_abort(env_cpu(&cpu->env), "MPC8xx MMU model is not implemented= \n"); default: --=20 2.30.9