/* $NetBSD: sched_ctl.h,v 1.3 2005/12/11 12:19:49 christos Exp $ */ /* * Mark Williamson, (C) 2004 Intel Research Cambridge * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to * deal in the Software without restriction, including without limitation the * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or * sell copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ /** * Generic scheduler control interface. * */ #ifndef __XEN_PUBLIC_SCHED_CTL_H__ #define __XEN_PUBLIC_SCHED_CTL_H__ /* Scheduler types */ #define SCHED_BVT 0 #define SCHED_ATROPOS 2 #define SCHED_RROBIN 3 /* these describe the intended direction used for a scheduler control or domain * command */ #define SCHED_INFO_PUT 0 #define SCHED_INFO_GET 1 /* * Generic scheduler control command - used to adjust system-wide scheduler * parameters */ struct sched_ctl_cmd { u32 sched_id; /* 0 */ u32 direction; /* 4 */ union { /* 8 */ struct bvt_ctl { /* IN variables. */ u32 ctx_allow; /* 8: context switch allowance */ } PACKED bvt; struct rrobin_ctl { /* IN variables */ u64 slice; /* 8: round robin time slice */ } PACKED rrobin; } PACKED u; } PACKED; /* 16 bytes */ struct sched_adjdom_cmd { u32 sched_id; /* 0 */ u32 direction; /* 4 */ domid_t domain; /* 8 */ u16 __pad0; u32 __pad1; union { /* 16 */ struct bvt_adjdom { u32 mcu_adv; /* 16: mcu advance: inverse of weight */ u32 warpback; /* 20: warp? */ s32 warpvalue; /* 24: warp value */ long long warpl; /* 32: warp limit */ long long warpu; /* 40: unwarp time requirement */ } PACKED bvt; struct atropos_adjdom { u64 nat_period; /* 16 */ u64 nat_slice; /* 24 */ u64 latency; /* 32 */ u32 xtratime; /* 36 */ } PACKED atropos; } PACKED u; } PACKED; /* 40 bytes */ #endif /* __XEN_PUBLIC_SCHED_CTL_H__ */