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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) From nobody Sun May 19 08:26:12 2024 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 1640271856741567.4206868733031; Thu, 23 Dec 2021 07:04:16 -0800 (PST) Received: from localhost ([::1]:54404 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n0Pdf-0006Rx-E5 for importer@patchew.org; Thu, 23 Dec 2021 10:04:15 -0500 Received: from eggs.gnu.org ([209.51.188.92]:53984) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n0Hyb-0000aM-BK for qemu-devel@nongnu.org; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::1036; envelope-from=tonistiigi@gmail.com; helo=mail-pj1-x1036.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: 1640271858376100001 Content-Type: text/plain; charset="utf-8" There seems to be difference in syscall and libc definition of these methods and therefore musl does not implement them (1e21e78bf7). Call syscall directly to ensure the behavior of the libc of user application, not the libc that was used to build QEMU. Signed-off-by: Tonis Tiigi Reviewed-by: Laurent Vivier --- linux-user/syscall.c | 40 ++++++++++++++++++++++++++------------- linux-user/syscall_defs.h | 4 ++++ 2 files changed, 31 insertions(+), 13 deletions(-) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 2f5a0fac5a..8c03a52a36 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -345,6 +345,17 @@ _syscall4(int, sys_sched_getattr, pid_t, pid, struct t= arget_sched_attr *, attr, #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_sched_getscheduler __NR_sched_getscheduler +_syscall1(int, sys_sched_getscheduler, pid_t, pid); +#define __NR_sys_sched_setscheduler __NR_sched_setscheduler +_syscall3(int, sys_sched_setscheduler, pid_t, pid, int, policy, + const struct target_sched_param *, param); +#define __NR_sys_sched_getparam __NR_sched_getparam +_syscall2(int, sys_sched_getparam, pid_t, pid, + struct target_sched_param *, param); +#define __NR_sys_sched_setparam __NR_sched_setparam +_syscall2(int, sys_sched_setparam, pid_t, pid, + const struct target_sched_param *, param); #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, @@ -10555,30 +10566,32 @@ static abi_long do_syscall1(void *cpu_env, int nu= m, abi_long arg1, return ret; case TARGET_NR_sched_setparam: { - struct sched_param *target_schp; - struct sched_param schp; + struct target_sched_param *target_schp; + struct target_sched_param schp; =20 if (arg2 =3D=3D 0) { return -TARGET_EINVAL; } - if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1)) + if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1)) { return -TARGET_EFAULT; + } schp.sched_priority =3D tswap32(target_schp->sched_priority); unlock_user_struct(target_schp, arg2, 0); - return get_errno(sched_setparam(arg1, &schp)); + return get_errno(sys_sched_setparam(arg1, &schp)); } case TARGET_NR_sched_getparam: { - struct sched_param *target_schp; - struct sched_param schp; + struct target_sched_param *target_schp; + struct target_sched_param schp; =20 if (arg2 =3D=3D 0) { return -TARGET_EINVAL; } - ret =3D get_errno(sched_getparam(arg1, &schp)); + ret =3D get_errno(sys_sched_getparam(arg1, &schp)); if (!is_error(ret)) { - if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0)) + if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))= { return -TARGET_EFAULT; + } target_schp->sched_priority =3D tswap32(schp.sched_priorit= y); unlock_user_struct(target_schp, arg2, 1); } @@ -10586,19 +10599,20 @@ static abi_long do_syscall1(void *cpu_env, int nu= m, abi_long arg1, return ret; case TARGET_NR_sched_setscheduler: { - struct sched_param *target_schp; - struct sched_param schp; + struct target_sched_param *target_schp; + struct target_sched_param schp; if (arg3 =3D=3D 0) { return -TARGET_EINVAL; } - if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1)) + if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1)) { return -TARGET_EFAULT; + } schp.sched_priority =3D tswap32(target_schp->sched_priority); unlock_user_struct(target_schp, arg3, 0); - return get_errno(sched_setscheduler(arg1, arg2, &schp)); + return get_errno(sys_sched_setscheduler(arg1, arg2, &schp)); } case TARGET_NR_sched_getscheduler: - return get_errno(sched_getscheduler(arg1)); + return get_errno(sys_sched_getscheduler(arg1)); case TARGET_NR_sched_getattr: { struct target_sched_attr *target_scha; diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index 310d6ce8ad..28b9fe9a47 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -2928,4 +2928,8 @@ struct target_sched_attr { abi_uint sched_util_max; }; =20 +struct target_sched_param { + abi_int sched_priority; +}; + #endif --=20 2.32.0 (Apple Git-132)