From nobody Mon Feb 9 17:25:15 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; 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=gmail.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1640271857414484.650439319885; Thu, 23 Dec 2021 07:04:17 -0800 (PST) Received: from localhost ([::1]:54452 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n0Pdg-0006Tp-CN for importer@patchew.org; Thu, 23 Dec 2021 10:04:16 -0500 Received: from eggs.gnu.org ([209.51.188.92]:54750) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n0I0W-0001V8-Vl for qemu-devel@nongnu.org; Thu, 23 Dec 2021 01:55:21 -0500 Received: from [2607:f8b0:4864:20::f31] (port=40627 helo=mail-qv1-xf31.google.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1n0I0V-0000ju-CO for qemu-devel@nongnu.org; Thu, 23 Dec 2021 01:55:20 -0500 Received: by mail-qv1-xf31.google.com with SMTP id q3so4418485qvc.7 for ; Wed, 22 Dec 2021 22:55:19 -0800 (PST) Received: from localhost ([2601:646:100:6be:28e2:4700:e00c:9454]) by smtp.gmail.com with UTF8SMTPSA id m16sm4697133pfk.32.2021.12.22.22.47.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 22 Dec 2021 22:47:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=bIw+R1RY/Y5QFG4Ac7lm7tGzhOFe3QwmKTSdFZsUqpg=; b=FSIigy/qC/jXAy5ng2BzEnu29PO5wOYimMoBpOzYAofJ5R6QOPXLJBhj5qvjfzxvWW SCSOVAP2xqH7sgZXYKPEnzpTbe0kDzi9B8JOSUlZYB4xEtlyjYPIMzny82SdrFMwyBLU tqph2H4Xs9efC0kUZf4uTPITZh0yo396twjdoFwMyyDc2pJrW4O7dQCxP6m4AqLpWRiH lvewgouNWQ417mP8qHFD8N86CZhPvS/W82iB9LrK195gkVTNdNSha4uHtFlbDf4KgrpZ 1fMI95cIChgyQmxYPMUmD8LQQ4U/euDKtP8b2zoNx696/IJ5cLfqzvbNQKDXlA3tMvDo gJ5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=bIw+R1RY/Y5QFG4Ac7lm7tGzhOFe3QwmKTSdFZsUqpg=; b=rKDIkR2Yb77YLjc+Unm/pJ1qzoHl7z59T+1JIx5Wol02Wf+Oi7WSmicwLvn2AMACPP sOLGOjt6ViBipZ7cb+C/SAWxB4+wpxaAeUceciesdFiqIo/6OF7FpDTzpBfkecIplfgo IsHimXpmcfXerNxbxHC2co0ssbxY+FmAcFT2rfVdheiRPLC3sQXPHuAWDCYwErZTZNuH 23KbN1ZemHhEPCoHcYE1YFTedgMWbu0tx9Wwc9l5Go29kLQSm+Qeqv6VRSBvO2eBM6gK SCeePJulstzH0OzRUlmBLcTITVhE/exvpGXp9wBosgQWvqALpiP9TqB38WWOdQgwJCCq 9iIg== X-Gm-Message-State: AOAM532spr8839YKH5eu6c0GeblOxUp7keCMN/aiLy6uEwGUfltmxDza Gs/3yVMWdPE7ku9iy/rL4JY0Aid/hdLgGKEu X-Google-Smtp-Source: ABdhPJwWFtxgMA8adPpAvWWBZ2QNgVdS1ybt54H6nS8eQQ0ZeoH/l9YEwnu/lLXOgcVAjbDrfgvDdw== X-Received: by 2002:a17:902:708b:b0:148:b0b0:2ad3 with SMTP id z11-20020a170902708b00b00148b0b02ad3mr1105024plk.115.1640242065546; Wed, 22 Dec 2021 22:47:45 -0800 (PST) From: Tonis Tiigi To: qemu-devel@nongnu.org Subject: [PATCH v3 1/2] linux-user: add sched_getattr support Date: Wed, 22 Dec 2021 22:47:27 -0800 Message-Id: <20211223064728.18048-2-tonistiigi@gmail.com> X-Mailer: git-send-email 2.32.0 (Apple Git-132) In-Reply-To: <20211223064728.18048-1-tonistiigi@gmail.com> References: <20211223064728.18048-1-tonistiigi@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::f31 (failed) 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=2607:f8b0:4864:20::f31; envelope-from=tonistiigi@gmail.com; helo=mail-qv1-xf31.google.com X-Spam_score_int: -12 X-Spam_score: -1.3 X-Spam_bar: - X-Spam_report: (-1.3 / 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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Thu, 23 Dec 2021 10:02:09 -0500 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: , Cc: Tonis Tiigi , laurent@vivier.eu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1640271858431100002 Content-Type: text/plain; charset="utf-8" Signed-off-by: Tonis Tiigi --- linux-user/syscall.c | 94 +++++++++++++++++++++++++++++++++++++++ linux-user/syscall_defs.h | 14 ++++++ 2 files changed, 108 insertions(+) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index f1cfcc8104..2f5a0fac5a 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -339,6 +339,12 @@ _syscall3(int, sys_sched_getaffinity, pid_t, pid, unsi= gned int, len, #define __NR_sys_sched_setaffinity __NR_sched_setaffinity _syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len, unsigned long *, user_mask_ptr); +#define __NR_sys_sched_getattr __NR_sched_getattr +_syscall4(int, sys_sched_getattr, pid_t, pid, struct target_sched_attr *, = attr, + unsigned int, size, unsigned int, flags); +#define __NR_sys_sched_setattr __NR_sched_setattr +_syscall3(int, sys_sched_setattr, pid_t, pid, struct target_sched_attr *, = attr, + unsigned int, flags); #define __NR_sys_getcpu __NR_getcpu _syscall3(int, sys_getcpu, unsigned *, cpu, unsigned *, node, void *, tcac= he); _syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd, @@ -10593,6 +10599,94 @@ static abi_long do_syscall1(void *cpu_env, int num= , abi_long arg1, } case TARGET_NR_sched_getscheduler: return get_errno(sched_getscheduler(arg1)); + case TARGET_NR_sched_getattr: + { + struct target_sched_attr *target_scha; + struct target_sched_attr scha; + if (arg2 =3D=3D 0) { + return -TARGET_EINVAL; + } + if (arg3 > sizeof(scha)) { + arg3 =3D sizeof(scha); + } + ret =3D get_errno(sys_sched_getattr(arg1, &scha, arg3, arg4)); + if (!is_error(ret)) { + target_scha =3D lock_user(VERIFY_WRITE, arg2, arg3, 0); + if (!target_scha) { + return -TARGET_EFAULT; + } + target_scha->size =3D tswap32(scha.size); + target_scha->sched_policy =3D tswap32(scha.sched_policy); + target_scha->sched_flags =3D tswap64(scha.sched_flags); + target_scha->sched_nice =3D tswap32(scha.sched_nice); + target_scha->sched_priority =3D tswap32(scha.sched_priorit= y); + target_scha->sched_runtime =3D tswap64(scha.sched_runtime); + target_scha->sched_deadline =3D tswap64(scha.sched_deadlin= e); + target_scha->sched_period =3D tswap64(scha.sched_period); + if (scha.size > offsetof(struct target_sched_attr, sched_u= til_min)) { + target_scha->sched_util_min =3D tswap32(scha.sched_uti= l_min); + target_scha->sched_util_max =3D tswap32(scha.sched_uti= l_max); + } + unlock_user(target_scha, arg2, arg3); + } + return ret; + } + case TARGET_NR_sched_setattr: + { + struct target_sched_attr *target_scha; + struct target_sched_attr scha; + if (arg2 =3D=3D 0) { + return -TARGET_EINVAL; + } + uint32_t size; + if (get_user_u32(size, arg2)) { + return -TARGET_EFAULT; + } + if (!size) { + size =3D offsetof(struct target_sched_attr, sched_util_min= ); + } + if (size < offsetof(struct target_sched_attr, sched_util_min))= { + if (put_user_u32(sizeof(struct target_sched_attr), arg2)) { + return -TARGET_EFAULT; + } + return -TARGET_E2BIG; + } + + if (size > sizeof(scha)) { + for (int i =3D sizeof(scha); i < size; i++) { + uint8_t b; + if (get_user_u8(b, arg2 + i)) { + return -TARGET_EFAULT; + } + if (b !=3D 0) { + if (put_user_u32(sizeof(struct target_sched_attr),= arg2)) { + return -TARGET_EFAULT; + } + return -TARGET_E2BIG; + } + } + size =3D sizeof(scha); + } + + target_scha =3D lock_user(VERIFY_READ, arg2, size, 1); + if (!target_scha) { + return -TARGET_EFAULT; + } + scha.size =3D size; + scha.sched_policy =3D tswap32(target_scha->sched_policy); + scha.sched_flags =3D tswap64(target_scha->sched_flags); + scha.sched_nice =3D tswap32(target_scha->sched_nice); + scha.sched_priority =3D tswap32(target_scha->sched_priority); + scha.sched_runtime =3D tswap64(target_scha->sched_runtime); + scha.sched_deadline =3D tswap64(target_scha->sched_deadline); + scha.sched_period =3D tswap64(target_scha->sched_period); + if (size > offsetof(struct target_sched_attr, sched_util_min))= { + scha.sched_util_min =3D tswap32(target_scha->sched_util_mi= n); + scha.sched_util_max =3D tswap32(target_scha->sched_util_ma= x); + } + unlock_user(target_scha, arg2, 0); + return get_errno(sys_sched_setattr(arg1, &scha, arg3)); + } case TARGET_NR_sched_yield: return get_errno(sched_yield()); case TARGET_NR_sched_get_priority_max: diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index 0b13975937..310d6ce8ad 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -2914,4 +2914,18 @@ struct target_statx { /* 0x100 */ }; =20 +/* from kernel's include/linux/sched/types.h */ +struct target_sched_attr { + abi_uint size; + abi_uint sched_policy; + abi_ullong sched_flags; + abi_int sched_nice; + abi_uint sched_priority; + abi_ullong sched_runtime; + abi_ullong sched_deadline; + abi_ullong sched_period; + abi_uint sched_util_min; + abi_uint sched_util_max; +}; + #endif --=20 2.32.0 (Apple Git-132)