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  • Committer: Bazaar Package Importer
  • Author(s): Bastian Blank
  • Date: 2010-05-06 15:47:38 UTC
  • mto: (1.3.1) (15.1.1 sid) (4.1.1 experimental)
  • mto: This revision was merged to the branch mainline in revision 3.
  • Revision ID: james.westby@ubuntu.com-20100506154738-agoz0rlafrh1fnq7
Tags: upstream-4.0.0
Import upstream version 4.0.0

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tools/libxc/xc_sedf.c
 
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/******************************************************************************
 
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 * xc_sedf.c
 
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 *
 
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 * API for manipulating parameters of the Simple EDF scheduler.
 
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 *
 
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 * changes by Stephan Diestelhorst
 
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 * based on code
 
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 * by Mark Williamson, Copyright (c) 2004 Intel Research Cambridge.
 
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 */
 
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#include "xc_private.h"
 
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int xc_sedf_domain_set(
 
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    int xc_handle,
 
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    uint32_t domid,
 
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    uint64_t period,
 
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    uint64_t slice,
 
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    uint64_t latency,
 
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    uint16_t extratime,
 
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    uint16_t weight)
 
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{
 
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    DECLARE_DOMCTL;
 
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    struct xen_domctl_sched_sedf *p = &domctl.u.scheduler_op.u.sedf;
 
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    domctl.cmd = XEN_DOMCTL_scheduler_op;
 
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    domctl.domain  = (domid_t)domid;
 
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    domctl.u.scheduler_op.sched_id = XEN_SCHEDULER_SEDF;
 
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    domctl.u.scheduler_op.cmd = XEN_DOMCTL_SCHEDOP_putinfo;
 
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    p->period    = period;
 
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    p->slice     = slice;
 
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    p->latency   = latency;
 
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    p->extratime = extratime;
 
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    p->weight    = weight;
 
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    return do_domctl(xc_handle, &domctl);
 
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}
 
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int xc_sedf_domain_get(
 
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    int xc_handle,
 
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    uint32_t domid,
 
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    uint64_t *period,
 
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    uint64_t *slice,
 
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    uint64_t *latency,
 
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    uint16_t *extratime,
 
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    uint16_t *weight)
 
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{
 
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    DECLARE_DOMCTL;
 
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    int ret;
 
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    struct xen_domctl_sched_sedf *p = &domctl.u.scheduler_op.u.sedf;
 
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    domctl.cmd = XEN_DOMCTL_scheduler_op;
 
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    domctl.domain = (domid_t)domid;
 
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    domctl.u.scheduler_op.sched_id = XEN_SCHEDULER_SEDF;
 
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    domctl.u.scheduler_op.cmd = XEN_DOMCTL_SCHEDOP_getinfo;
 
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    ret = do_domctl(xc_handle, &domctl);
 
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    *period    = p->period;
 
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    *slice     = p->slice;
 
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    *latency   = p->latency;
 
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    *extratime = p->extratime;
 
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    *weight    = p->weight;
 
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    return ret;
 
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}