From nobody Tue Oct 28 01:57:58 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1522126078581449.903815523131; Mon, 26 Mar 2018 21:47:58 -0700 (PDT) Received: from localhost ([::1]:60346 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f0gWb-0002I2-Gp for importer@patchew.org; Tue, 27 Mar 2018 00:47:57 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50762) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f0gNC-00020n-Rj for qemu-devel@nongnu.org; Tue, 27 Mar 2018 00:38:16 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1f0gNB-0002rX-IX for qemu-devel@nongnu.org; Tue, 27 Mar 2018 00:38:14 -0400 Received: from ozlabs.org ([2401:3900:2:1::2]:53675) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1f0gNB-0002le-4b; Tue, 27 Mar 2018 00:38:13 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 409JCp6NWfz9s3B; Tue, 27 Mar 2018 15:37:55 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1522125478; bh=Lh9vNeW39NTEBCzATXmjq702oqtQ8OKETiqoCVGtQNM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AE+v3V1Hq4D9VzTI82Mvl1yvPcGrRrl3a8+8HplkFPWDU2qSRzrVPiJUopyCCLgq5 3WSPC6EqJQZwEBajQJUM7ZCw+QVnjXRt1Pw/pCxGiGr6D5Bz1uDVasYAUowiUz0XXH 0yVgIS+APkfKtx03yhU9NxF48bsINRpYUAIDt7Is= From: David Gibson To: qemu-ppc@nongnu.org, groug@kaod.org Date: Tue, 27 Mar 2018 15:37:38 +1100 Message-Id: <20180327043741.7705-10-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180327043741.7705-1-david@gibson.dropbear.id.au> References: <20180327043741.7705-1-david@gibson.dropbear.id.au> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2401:3900:2:1::2 Subject: [Qemu-devel] [RFC for-2.13 09/12] target/ppc: Move 1T segment and AMR options to PPCHash64Options X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: agraf@suse.de, qemu-devel@nongnu.org, clg@kaod.org, bharata@linux.vnet.ibm.com, David Gibson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Currently env->mmu_model is a bit of an unholy mess of an enum of distinct MMU types, with various flag bits as well. This makes which bits of the field should be compared pretty confusing. Make a start on cleaning that up by moving two of the flags bits - POWERPC_MMU_1TSEG and POWERPC_MMU_AMR - which are specific to the 64-bit hash MMU into a new flags field in PPCHash64Options structure. Signed-off-by: David Gibson Reviewed-by: C=C3=A9dric Le Goater Reviewed-by: Greg Kurz --- hw/ppc/pnv.c | 3 ++- hw/ppc/spapr.c | 2 +- target/ppc/cpu-qom.h | 11 +++-------- target/ppc/kvm.c | 4 ++-- target/ppc/mmu-hash64.c | 6 ++++-- target/ppc/mmu-hash64.h | 3 +++ 6 files changed, 15 insertions(+), 14 deletions(-) diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index 5a79b24828..0aa878b771 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -36,6 +36,7 @@ #include "monitor/monitor.h" #include "hw/intc/intc.h" #include "hw/ipmi/ipmi.h" +#include "target/ppc/mmu-hash64.h" =20 #include "hw/ppc/xics.h" #include "hw/ppc/pnv_xscom.h" @@ -187,7 +188,7 @@ static void pnv_dt_core(PnvChip *chip, PnvCore *pc, voi= d *fdt) _FDT((fdt_setprop(fdt, offset, "ibm,purr", NULL, 0))); } =20 - if (env->mmu_model & POWERPC_MMU_1TSEG) { + if (cpu->hash64_opts->flags & PPC_HASH64_1TSEG) { _FDT((fdt_setprop(fdt, offset, "ibm,processor-segment-sizes", segs, sizeof(segs)))); } diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index a35bffd524..436ed39f7f 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -557,7 +557,7 @@ static void spapr_populate_cpu_dt(CPUState *cs, void *f= dt, int offset, _FDT((fdt_setprop(fdt, offset, "ibm,purr", NULL, 0))); } =20 - if (env->mmu_model & POWERPC_MMU_1TSEG) { + if (cpu->hash64_opts->flags & PPC_HASH64_1TSEG) { _FDT((fdt_setprop(fdt, offset, "ibm,processor-segment-sizes", segs, sizeof(segs)))); } diff --git a/target/ppc/cpu-qom.h b/target/ppc/cpu-qom.h index 3e5ef7375f..2bd58b2a84 100644 --- a/target/ppc/cpu-qom.h +++ b/target/ppc/cpu-qom.h @@ -68,22 +68,17 @@ enum powerpc_mmu_t { /* PowerPC 601 MMU model (specific BATs format) */ POWERPC_MMU_601 =3D 0x0000000A, #define POWERPC_MMU_64 0x00010000 -#define POWERPC_MMU_1TSEG 0x00020000 -#define POWERPC_MMU_AMR 0x00040000 #define POWERPC_MMU_V3 0x00100000 /* ISA V3.00 MMU Support */ /* 64 bits PowerPC MMU */ POWERPC_MMU_64B =3D POWERPC_MMU_64 | 0x00000001, /* Architecture 2.03 and later (has LPCR) */ POWERPC_MMU_2_03 =3D POWERPC_MMU_64 | 0x00000002, /* Architecture 2.06 variant */ - POWERPC_MMU_2_06 =3D POWERPC_MMU_64 | POWERPC_MMU_1TSEG - | POWERPC_MMU_AMR | 0x00000003, + POWERPC_MMU_2_06 =3D POWERPC_MMU_64 | 0x00000003, /* Architecture 2.07 variant */ - POWERPC_MMU_2_07 =3D POWERPC_MMU_64 | POWERPC_MMU_1TSEG - | POWERPC_MMU_AMR | 0x00000004, + POWERPC_MMU_2_07 =3D POWERPC_MMU_64 | 0x00000004, /* Architecture 3.00 variant */ - POWERPC_MMU_3_00 =3D POWERPC_MMU_64 | POWERPC_MMU_1TSEG - | POWERPC_MMU_AMR | POWERPC_MMU_V3 + POWERPC_MMU_3_00 =3D POWERPC_MMU_64 | POWERPC_MMU_V3 | 0x00000005, }; #define POWERPC_MMU_VER(x) ((x) & (POWERPC_MMU_64 | 0xFFFF)) diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c index 01947169c9..3424917381 100644 --- a/target/ppc/kvm.c +++ b/target/ppc/kvm.c @@ -302,7 +302,7 @@ static void kvm_get_fallback_smmu_info(PowerPCCPU *cpu, /* HV KVM has backing store size restrictions */ info->flags =3D KVM_PPC_PAGE_SIZES_REAL; =20 - if (env->mmu_model & POWERPC_MMU_1TSEG) { + if (cpu->hash64_opts->flags & PPC_HASH64_1TSEG) { info->flags |=3D KVM_PPC_1T_SEGMENTS; } =20 @@ -482,7 +482,7 @@ static void kvm_fixup_page_sizes(PowerPCCPU *cpu) } env->slb_nr =3D smmu_info.slb_size; if (!(smmu_info.flags & KVM_PPC_1T_SEGMENTS)) { - env->mmu_model &=3D ~POWERPC_MMU_1TSEG; + cpu->hash64_opts->flags &=3D ~PPC_HASH64_1TSEG; } } =20 diff --git a/target/ppc/mmu-hash64.c b/target/ppc/mmu-hash64.c index d369b1bf86..1d785f50d7 100644 --- a/target/ppc/mmu-hash64.c +++ b/target/ppc/mmu-hash64.c @@ -160,7 +160,7 @@ int ppc_store_slb(PowerPCCPU *cpu, target_ulong slot, if (vsid & (SLB_VSID_B & ~SLB_VSID_B_1T)) { return -1; /* Bad segment size */ } - if ((vsid & SLB_VSID_B) && !(env->mmu_model & POWERPC_MMU_1TSEG)) { + if ((vsid & SLB_VSID_B) && !(cpu->hash64_opts->flags & PPC_HASH64_1TSE= G)) { return -1; /* 1T segment on MMU that doesn't support it */ } =20 @@ -369,7 +369,7 @@ static int ppc_hash64_amr_prot(PowerPCCPU *cpu, ppc_has= h_pte64_t pte) int prot =3D PAGE_READ | PAGE_WRITE | PAGE_EXEC; =20 /* Only recent MMUs implement Virtual Page Class Key Protection */ - if (!(env->mmu_model & POWERPC_MMU_AMR)) { + if (!(cpu->hash64_opts->flags & PPC_HASH64_AMR)) { return prot; } =20 @@ -1114,6 +1114,7 @@ void ppc_hash64_finalize(PowerPCCPU *cpu) } =20 const PPCHash64Options ppc_hash64_opts_basic =3D { + .flags =3D 0, .sps =3D { { .page_shift =3D 12, /* 4K */ .slb_enc =3D 0, @@ -1127,6 +1128,7 @@ const PPCHash64Options ppc_hash64_opts_basic =3D { }; =20 const PPCHash64Options ppc_hash64_opts_POWER7 =3D { + .flags =3D PPC_HASH64_1TSEG | PPC_HASH64_AMR, .sps =3D { { .page_shift =3D 12, /* 4K */ diff --git a/target/ppc/mmu-hash64.h b/target/ppc/mmu-hash64.h index ff0c48af55..6cfca97a60 100644 --- a/target/ppc/mmu-hash64.h +++ b/target/ppc/mmu-hash64.h @@ -152,6 +152,9 @@ struct ppc_one_seg_page_size { }; =20 struct PPCHash64Options { +#define PPC_HASH64_1TSEG 0x00001 +#define PPC_HASH64_AMR 0x00002 + unsigned flags; struct ppc_one_seg_page_size sps[PPC_PAGE_SIZES_MAX_SZ]; }; =20 --=20 2.14.3