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[173.197.98.125]) by smtp.gmail.com with ESMTPSA id d5-20020a170902b70500b001d6f29c12f7sm464418pls.135.2024.02.14.22.21.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Feb 2024 22:21:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1707978066; x=1708582866; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=iM2DWBTbIODm0qN2yhX9D3hAXXDtYwow0kqtsMcFoQE=; b=v4wd6VKy5O2IRTProYWFR0Vcv+WPssRe5SK74jjAA2yPm6ASPm6m6kzj4ZE8ogpUFi fsSXfdqzQt9xgKcnUGQPgUEaRKvoJu/B0VIN7/GYhI86gbWiVauGD1o4c396AvTVV2BG sW58FAOp1qqxbIrgFHPusCAu7FF7Z1McXjiQL/KtNQ6cKKsD2pHTYd3RuvUQb7UKXr6/ IHVM0KCMLeBYIv0xMzMuUgxQC4bUjJJpezU0uZCvkg6+ikuEZbUhE0g0sQJUgdNernYK 3cDJv8eIa7qdzMDA8PufduinmecsefyLeCT272b2DmEy6FlgYTmKziUIDm51bsx9lShQ Qhiw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707978066; x=1708582866; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=iM2DWBTbIODm0qN2yhX9D3hAXXDtYwow0kqtsMcFoQE=; b=cZC1e7gq9OMOAa4Veq62nzlN0UkcZK/TyE9Q6tTJMdLhrmFHryFcop23iKb7qNfH3n Yw5GG6rHwQeW4FBQuNXbqyV042eblhsch4y+O5peWQFsmf5K8ahi0G8GzW+l7p5KPRHm I2NNG3cUBhq2nEXoTUeFJKa6+PIIrX5c83wZa5u+FIQ5aQ4q0Yjsy6vAjOyKWQ7kC/Dy GLv+AHABepgkCcp6i/CTLnWiexdo6XhnfLWJonngsK7nhUGfbGqycvUvB6DGJEc5WM2E scnzSBw4l+jJX6JooCcQ7/zjfVr68MI/z8GspALI98qeaKPunUF85sJ580MkI1rzdDfv XM2A== X-Gm-Message-State: AOJu0YyyoNitrWmZtdfIgCvWrSvZU543IOPDQ6fkQ6fZiKUBXyWYSkRJ Oekeu/CHRBS+tDagK6sWvdV7Ji0kYBfktnEbBIcIYz5K+d8hqikXFjia+0LJp33n4W6kTVJNOgo v X-Google-Smtp-Source: AGHT+IEevPRBMgGW9AzdwAOYT1e4rQc8RU+6HkCg9vJCaNaj6kI1S/o6llW4TwiqCKixriLxZYgSJQ== X-Received: by 2002:a17:902:f7c3:b0:1db:75aa:7f6a with SMTP id h3-20020a170902f7c300b001db75aa7f6amr751041plw.20.1707978066567; Wed, 14 Feb 2024 22:21:06 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Helge Deller Subject: [PATCH v4 31/36] linux-user: Allow TARGET_PAGE_BITS_VARY Date: Wed, 14 Feb 2024 20:20:13 -1000 Message-Id: <20240215062018.795056-32-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240215062018.795056-1-richard.henderson@linaro.org> References: <20240215062018.795056-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable 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+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::631; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x631.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1707978342487100003 If set, match the host and guest page sizes. Reviewed-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Richard Henderson Acked-by: Helge Deller Message-Id: <20240102015808.132373-30-richard.henderson@linaro.org> --- linux-user/main.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/linux-user/main.c b/linux-user/main.c index bad03f06d3..12bb839982 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -55,6 +55,7 @@ #include "loader.h" #include "user-mmap.h" #include "tcg/perf.h" +#include "exec/page-vary.h" =20 #ifdef CONFIG_SEMIHOSTING #include "semihosting/semihost.h" @@ -680,6 +681,7 @@ int main(int argc, char **argv, char **envp) int i; int ret; int execfd; + int host_page_size; unsigned long max_reserved_va; bool preserve_argv0; =20 @@ -791,6 +793,16 @@ int main(int argc, char **argv, char **envp) opt_one_insn_per_tb, &error_abort); ac->init_machine(NULL); } + + /* + * Finalize page size before creating CPUs. + * This will do nothing if !TARGET_PAGE_BITS_VARY. + * The most efficient setting is to match the host. + */ + host_page_size =3D qemu_real_host_page_size(); + set_preferred_target_page_bits(ctz32(host_page_size)); + finalize_target_page_bits(); + cpu =3D cpu_create(cpu_type); env =3D cpu_env(cpu); cpu_reset(cpu); @@ -804,8 +816,6 @@ int main(int argc, char **argv, char **envp) */ max_reserved_va =3D MAX_RESERVED_VA(cpu); if (reserved_va !=3D 0) { - int host_page_size =3D qemu_real_host_page_size(); - if ((reserved_va + 1) % host_page_size) { char *s =3D size_to_str(host_page_size); fprintf(stderr, "Reserved virtual address not aligned mod %s\n= ", s); @@ -904,7 +914,7 @@ int main(int argc, char **argv, char **envp) * If we're in a chroot with no /proc, fall back to 1 page. */ if (mmap_min_addr =3D=3D 0) { - mmap_min_addr =3D qemu_real_host_page_size(); + mmap_min_addr =3D host_page_size; qemu_log_mask(CPU_LOG_PAGE, "host mmap_min_addr=3D0x%lx (fallback)\n", mmap_min_addr); --=20 2.34.1