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GET /api/patches/1825234/?format=api
{ "id": 1825234, "url": "http://patchwork.ozlabs.org/api/patches/1825234/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20230824092409.1492470-18-gaosong@loongson.cn/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20230824092409.1492470-18-gaosong@loongson.cn>", "list_archive_url": null, "date": "2023-08-24T09:23:55", "name": "[PULL,17/31] target/loongarch: Truncate high 32 bits of address in VA32 mode", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "5460ddb35877a9eb4ace1bab82951b5df273b735", "submitter": { "id": 82024, "url": "http://patchwork.ozlabs.org/api/people/82024/?format=api", "name": "gaosong", "email": "gaosong@loongson.cn" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20230824092409.1492470-18-gaosong@loongson.cn/mbox/", "series": [ { "id": 370173, "url": "http://patchwork.ozlabs.org/api/series/370173/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=370173", "date": "2023-08-24T09:23:41", "name": "[PULL,01/31] target/loongarch: Log I/O write accesses to CSR registers", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/370173/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1825234/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1825234/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)", "Received": [ "from lists.gnu.org (lists.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4RWd7w29HCz1ygJ\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 24 Aug 2023 19:29:16 +1000 (AEST)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1qZ6aq-00063w-TL; Thu, 24 Aug 2023 05:25:33 -0400", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <gaosong@loongson.cn>)\n id 1qZ6a6-000422-5v\n for qemu-devel@nongnu.org; Thu, 24 Aug 2023 05:24:53 -0400", "from mail.loongson.cn ([114.242.206.163])\n by eggs.gnu.org with esmtp (Exim 4.90_1)\n (envelope-from <gaosong@loongson.cn>) id 1qZ6a3-0003aU-6S\n for qemu-devel@nongnu.org; Thu, 24 Aug 2023 05:24:45 -0400", "from loongson.cn (unknown [10.2.5.185])\n by gateway (Coremail) with SMTP id _____8CxruvDIedkbXkbAA--.53482S3;\n Thu, 24 Aug 2023 17:24:19 +0800 (CST)", "from localhost.localdomain (unknown [10.2.5.185])\n by localhost.localdomain (Coremail) with SMTP id\n AQAAf8DxJ826IedkJjhiAA--.40637S19;\n Thu, 24 Aug 2023 17:24:19 +0800 (CST)" ], "From": "Song Gao <gaosong@loongson.cn>", "To": "qemu-devel@nongnu.org", "Cc": "stefanha@redhat.com, richard.henderson@linaro.org, Jiajie Chen <c@jia.je>,\n\t=?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= <philmd@linaro.org>", "Subject": "[PULL 17/31] target/loongarch: Truncate high 32 bits of address in\n VA32 mode", "Date": "Thu, 24 Aug 2023 17:23:55 +0800", "Message-Id": "<20230824092409.1492470-18-gaosong@loongson.cn>", "X-Mailer": "git-send-email 2.39.1", "In-Reply-To": "<20230824092409.1492470-1-gaosong@loongson.cn>", "References": "<20230824092409.1492470-1-gaosong@loongson.cn>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit", "X-CM-TRANSID": "AQAAf8DxJ826IedkJjhiAA--.40637S19", "X-CM-SenderInfo": "5jdr20tqj6z05rqj20fqof0/", "X-Coremail-Antispam": "1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7\n ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx\n nUUI43ZEXa7xR_UUUUUUUUU==", "Received-SPF": "pass client-ip=114.242.206.163;\n envelope-from=gaosong@loongson.cn;\n helo=mail.loongson.cn", "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,\n 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": "<qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "From: Jiajie Chen <c@jia.je>\n\nWhen running in VA32 mode(!LA64 or VA32L[1-3] matching PLV), virtual\naddress is truncated to 32 bits before address mapping.\n\nSigned-off-by: Jiajie Chen <c@jia.je>\nCo-authored-by: Richard Henderson <richard.henderson@linaro.org>\nReviewed-by: Richard Henderson <richard.henderson@linaro.org>\nSigned-off-by: Song Gao <gaosong@loongson.cn>\nReviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>\nMessage-ID: <20230822032724.1353391-6-gaosong@loongson.cn>\nMessage-Id: <20230822071405.35386-10-philmd@linaro.org>\n---\n target/loongarch/cpu.h | 6 +++++-\n target/loongarch/translate.c | 16 +++++++++++++++-\n 2 files changed, 20 insertions(+), 2 deletions(-)", "diff": "diff --git a/target/loongarch/cpu.h b/target/loongarch/cpu.h\nindex e1562695e8..25a0ef7e41 100644\n--- a/target/loongarch/cpu.h\n+++ b/target/loongarch/cpu.h\n@@ -445,7 +445,11 @@ static inline bool is_va32(CPULoongArchState *env)\n \n static inline void set_pc(CPULoongArchState *env, uint64_t value)\n {\n- env->pc = value;\n+ if (is_va32(env)) {\n+ env->pc = (uint32_t)value;\n+ } else {\n+ env->pc = value;\n+ }\n }\n \n /*\ndiff --git a/target/loongarch/translate.c b/target/loongarch/translate.c\nindex 8b26555a27..9a23ec786d 100644\n--- a/target/loongarch/translate.c\n+++ b/target/loongarch/translate.c\n@@ -86,6 +86,10 @@ void generate_exception(DisasContext *ctx, int excp)\n \n static inline void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest)\n {\n+ if (ctx->va32) {\n+ dest = (uint32_t) dest;\n+ }\n+\n if (translator_use_goto_tb(&ctx->base, dest)) {\n tcg_gen_goto_tb(n);\n tcg_gen_movi_tl(cpu_pc, dest);\n@@ -212,11 +216,17 @@ static TCGv make_address_x(DisasContext *ctx, TCGv base, TCGv addend)\n {\n TCGv temp = NULL;\n \n- if (addend) {\n+ if (addend || ctx->va32) {\n temp = tcg_temp_new();\n+ }\n+ if (addend) {\n tcg_gen_add_tl(temp, base, addend);\n base = temp;\n }\n+ if (ctx->va32) {\n+ tcg_gen_ext32u_tl(temp, base);\n+ base = temp;\n+ }\n return base;\n }\n \n@@ -262,6 +272,10 @@ static void loongarch_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)\n }\n \n ctx->base.pc_next += 4;\n+\n+ if (ctx->va32) {\n+ ctx->base.pc_next = (uint32_t)ctx->base.pc_next;\n+ }\n }\n \n static void loongarch_tr_tb_stop(DisasContextBase *dcbase, CPUState *cs)\n", "prefixes": [ "PULL", "17/31" ] }