From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dulloor Subject: Re: [PATCH 1/1] Add .adjust_global callback Date: Mon, 19 Apr 2010 09:54:25 -0400 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0647989143==" Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Kathy Hadley Cc: keir.fraser@citrix.com, xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org --===============0647989143== Content-Type: multipart/related; boundary=0016367faced8ddfc20484974cbd --0016367faced8ddfc20484974cbd Content-Type: multipart/alternative; boundary=0016367faced8ddfbc0484974cbc --0016367faced8ddfbc0484974cbc Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable You don't have to explicitly set adjust_global to NULL for credit and sedf. -dulloor On Mon, Apr 19, 2010 at 9:39 AM, Kathy Hadley wrote: > Resubmitting now that I have been added to the Xen-devel mailing list. > > > > Kathy Hadley > > DornerWorks, Ltd. > > > > *From:* Kathy Hadley > *Sent:* Friday, April 16, 2010 10:14 AM > *To:* 'xen-devel@lists.xensource.com' > *Cc:* 'Keir.Fraser@citrix.com' > *Subject:* [Xen-Devel] [PATCH 1/1] Add .adjust_global callback > > > > This patch adds an .adjust_global scheduler callback function, which allo= ws > adjusting the global scheduler parameters (rather than just one domain=92= s > parameters). This patch supports the addition of an ARINC 653 scheduler > (which will be submitted in a subsequent patch), and was suggested by Geo= rge > Dunlap and Keir Fraser in response to an earlier patch (ref: [Xen-devel] > [PATCH 1/1] Xen ARINC 653 scheduler). > > > > Thanks and regards, > > > > > > [image: cid:image001.jpg@01CAD7E0.50E45D70] > > *Kathy Hadley > *DornerWorks, Ltd. > *Embedded Systems Engineering > > *3445 Lake Eastbrook Blvd SE > Grand Rapids, MI 49546 > > Direct: 616.389.6127 > > Tel: 616.245.8369 > > Fax: 616.245.8372 > > > > Kathy.Hadley@DornerWorks.com > > www.DornerWorks.com > > [image: cid:image002.jpg@01CAD7E0.50E45D70] > > *Honored as one of the 2010 =93Michigan 50 Companies to Watch=94* > > > > diff -rupN a/xen/common/domctl.c b/xen/common/domctl.c > > --- a/xen/common/domctl.c 2010-04-07 12:12:06.000000000 -0400 > > +++ b/xen/common/domctl.c 2010-04-14 10:57:11.262796000 -0400 > > @@ -592,22 +592,35 @@ long do_domctl(XEN_GUEST_HANDLE(xen_domc > > > > case XEN_DOMCTL_scheduler_op: > > { > > - struct domain *d; > > - > > - ret =3D -ESRCH; > > - if ( (d =3D rcu_lock_domain_by_id(op->domain)) =3D=3D NULL ) > > - break; > > + if ( (op->u.scheduler_op.cmd =3D=3D > XEN_DOMCTL_SCHEDOP_put_global_info) > > + || (op->u.scheduler_op.cmd =3D=3D > XEN_DOMCTL_SCHEDOP_get_global_info) ) > > + { > > + ret =3D sched_adjust_global(&op->u.scheduler_op); > > + if (op->u.scheduler_op.cmd =3D=3D > XEN_DOMCTL_SCHEDOP_get_global_info) > > + { > > + if ( copy_to_guest(u_domctl, op, 1) ) > > + ret =3D -EFAULT; > > + } > > + } > > + else > > + { > > + struct domain *d; > > > > - ret =3D xsm_scheduler(d); > > - if ( ret ) > > - goto scheduler_op_out; > > + ret =3D -ESRCH; > > + if ( (d =3D rcu_lock_domain_by_id(op->domain)) =3D=3D NULL ) > > + break; > > > > - ret =3D sched_adjust(d, &op->u.scheduler_op); > > - if ( copy_to_guest(u_domctl, op, 1) ) > > - ret =3D -EFAULT; > > + ret =3D xsm_scheduler(d); > > + if ( ret ) > > + goto scheduler_op_out; > > + > > + ret =3D sched_adjust(d, &op->u.scheduler_op); > > + if ( copy_to_guest(u_domctl, op, 1) ) > > + ret =3D -EFAULT; > > > > - scheduler_op_out: > > - rcu_unlock_domain(d); > > + scheduler_op_out: > > + rcu_unlock_domain(d); > > + } > > } > > break; > > > > diff -rupN a/xen/common/sched_credit.c b/xen/common/sched_credit.c > > --- a/xen/common/sched_credit.c 2010-04-07 12:12:06.000000000 > -0400 > > +++ b/xen/common/sched_credit.c 2010-04-13 17:30:40.710992000 -040= 0 > > @@ -1404,6 +1404,7 @@ const struct scheduler sched_credit_def > > .wake =3D csched_vcpu_wake, > > > > .adjust =3D csched_dom_cntl, > > + .adjust_global =3D NULL, > > > > .pick_cpu =3D csched_cpu_pick, > > .do_schedule =3D csched_schedule, > > diff -rupN a/xen/common/sched_sedf.c b/xen/common/sched_sedf.c > > --- a/xen/common/sched_sedf.c 2010-04-07 12:12:06.000000000 -0400 > > +++ b/xen/common/sched_sedf.c 2010-04-13 17:30:40.710992000 -040= 0 > > @@ -1473,6 +1473,7 @@ const struct scheduler sched_sedf_def =3D > > .sleep =3D sedf_sleep, > > .wake =3D sedf_wake, > > .adjust =3D sedf_adjust, > > + .adjust_global =3D NULL, > > }; > > > > /* > > diff -rupN a/xen/common/schedule.c b/xen/common/schedule.c > > --- a/xen/common/schedule.c 2010-04-07 12:12:06.000000000 -0400 > > +++ b/xen/common/schedule.c 2010-04-14 10:57:11.262796000 -0400 > > @@ -804,6 +804,21 @@ long sched_adjust(struct domain *d, stru > > return ret; > > } > > > > +/* Adjust scheduling parameters globally */ > > +long sched_adjust_global(struct xen_domctl_scheduler_op *op) > > +{ > > + long ret; > > + > > + if ( (op->sched_id !=3D ops.sched_id) > > + || ( (op->cmd !=3D XEN_DOMCTL_SCHEDOP_put_global_info) > > + && (op->cmd !=3D XEN_DOMCTL_SCHEDOP_get_global_info) ) ) > > + return -EINVAL; > > + > > + ret =3D SCHED_OP(adjust_global, op); > > + > > + return ret; > > +} > > + > > static void vcpu_periodic_timer_work(struct vcpu *v) > > { > > s_time_t now =3D NOW(); > > diff -rupN a/xen/include/public/domctl.h b/xen/include/public/domctl.h > > --- a/xen/include/public/domctl.h 2010-04-07 12:12:06.000000000 -0400 > > +++ b/xen/include/public/domctl.h 2010-04-14 10:57:11.262796000 > -0400 > > @@ -306,6 +306,8 @@ DEFINE_XEN_GUEST_HANDLE(xen_domctl_max_v > > /* Set or get info? */ > > #define XEN_DOMCTL_SCHEDOP_putinfo 0 > > #define XEN_DOMCTL_SCHEDOP_getinfo 1 > > +#define XEN_DOMCTL_SCHEDOP_put_global_info 2 > > +#define XEN_DOMCTL_SCHEDOP_get_global_info 3 > > struct xen_domctl_scheduler_op { > > uint32_t sched_id; /* XEN_SCHEDULER_* */ > > uint32_t cmd; /* XEN_DOMCTL_SCHEDOP_* */ > > diff -rupN a/xen/include/xen/sched.h b/xen/include/xen/sched.h > > --- a/xen/include/xen/sched.h 2010-04-07 12:12:06.000000000 -0400 > > +++ b/xen/include/xen/sched.h 2010-04-13 17:30:40.710992000 -0400 > > @@ -472,6 +472,7 @@ void sched_destroy_vcpu(struct vcpu *v); > > int sched_init_domain(struct domain *d); > > void sched_destroy_domain(struct domain *d); > > long sched_adjust(struct domain *, struct xen_domctl_scheduler_op *); > > +long sched_adjust_global(struct xen_domctl_scheduler_op *); > > int sched_id(void); > > void sched_tick_suspend(void); > > void sched_tick_resume(void); > > diff -rupN a/xen/include/xen/sched-if.h b/xen/include/xen/sched-if.h > > --- a/xen/include/xen/sched-if.h 2010-04-07 12:12:06.000000000 -0400 > > +++ b/xen/include/xen/sched-if.h 2010-04-13 17:30:40.710992000 > -0400 > > @@ -76,6 +76,7 @@ struct scheduler { > > int (*pick_cpu) (struct vcpu *); > > int (*adjust) (struct domain *, > > struct xen_domctl_scheduler_op *); > > + int (*adjust_global) (struct xen_domctl_scheduler_op *); > > void (*dump_settings) (void); > > void (*dump_cpu_state) (int); > > > > > > > > > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel > > --0016367faced8ddfbc0484974cbc Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable You don't have to explicitly set adjust_global to NULL for credit and s= edf.

-dulloor

On Mon, Apr 19, 2010= at 9:39 AM, Kathy Hadley <Kathy.Hadley@dornerworks.com> wrote:

Resubmittin= g now that I have been added to the Xen-devel mailing list.

=A0<= /p>

Kathy Hadle= y

DornerWorks= , Ltd.

=A0<= /p>

From:= Kathy Hadley
Sent: Friday, April 16, 2010 10:14 AM
To: 'xen-devel@lists.xensource.com'
Cc: 'Keir.Fraser@citrix.com'
Subject: [Xen-Devel] [PATCH 1/1] Add .adjust_global callback<= /p>

=A0

This patch adds an .adjust_global scheduler callback function, which allows adjusting the global scheduler parameters (rather th= an just one domain=92s parameters).=A0 This patch supports the addition of an ARINC 653 scheduler (which will be submitted in a subsequent patch), and= was suggested by George Dunlap and Keir Fraser in response to an earlier patch (ref: [Xen-devel] [PATCH 1/1] Xen ARINC 653 scheduler).

=A0

Thanks and regards,

=A0

=A0

3D"cid:image00=

Kathy Hadley
DornerWorks, Ltd.
Embedded Systems Engineering

3445 Lake Eastbrook Blvd SE
Grand Rapids, MI=A0 49546

Direct: 616.389.6127

Tel:=A0=A0=A0=A0=A0 616.245.8369

Fax:=A0=A0=A0=A0 616.245.8372

=A0

Kathy.Hadley@DornerWorks.com

www.DornerWorks.com

3D"cid:image002.jpg@01CAD7E0.50=

Honored as one of the 2010 =93Michigan 50 Companies to Watch=94

=A0

diff -rupN a/xen/common/domctl.c b/xen/common/domctl.c

--- a/xen/common/domctl.c=A0=A0=A0=A0=A0=A0=A0 2010-04-07 12:12:06.000000000 -0400

+++ b/xen/common/domctl.c=A0=A0=A0=A0 2010-04-14 10:57:11.262796000 -0400

@@ -592,22 +592,35 @@ long do_domctl(XEN_GUEST_HANDLE(xen_domc

=A0

=A0=A0=A0=A0 case XEN_DOMCTL_scheduler_op:

=A0=A0=A0=A0 {

-=A0=A0=A0=A0=A0=A0=A0 struct domain *d;

-

-=A0=A0=A0=A0=A0=A0=A0 ret =3D -ESRCH;

-=A0=A0=A0=A0=A0=A0=A0 if ( (d =3D rcu_lock_domain_by_id(op->domain)) =3D=3D NULL )

-=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 break;

+=A0=A0=A0=A0=A0=A0=A0 if ( (op->u.scheduler_op.cmd =3D=3D XEN_DOMCTL_SCHEDOP_put_global_info= )

+=A0=A0=A0=A0=A0=A0=A0=A0=A0 || (op->u.scheduler_op.cmd =3D=3D XEN_DOMCTL_SCHEDOP_get_global_info) = )

+=A0=A0=A0=A0=A0=A0=A0 {

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 ret =3D sched_adjust_global(&op->u.scheduler_op);

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 if (op->u.scheduler_op.cmd =3D=3D XEN_DOMCTL_SCHEDOP_get_global_info)<= /span>

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 {

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 if ( copy_to_guest(u_domctl, op, 1) )

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0 ret =3D -EFAULT;

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 }

+=A0=A0=A0=A0=A0=A0=A0 }

+=A0=A0=A0=A0=A0=A0=A0 else

+=A0=A0=A0=A0=A0=A0=A0 {

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 struct domain *d;

=A0

-=A0=A0=A0=A0=A0=A0=A0 ret =3D xsm_scheduler(d);

-=A0=A0=A0=A0=A0=A0=A0 if ( ret )

-=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 goto scheduler_op_out;

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 ret =3D -ESRCH;

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 if ( (d =3D rcu_lock_domain_by_id(op->domain)) =3D=3D NULL )

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 break;

=A0

-=A0=A0=A0=A0=A0=A0=A0 ret =3D sched_adjust(d, &op->u.scheduler_op);

-=A0=A0=A0=A0=A0=A0=A0 if ( copy_to_guest(u_domctl, op, 1) )

-=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 ret =3D -EFAULT;

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 ret =3D xsm_scheduler(d);

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 if ( ret )

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 goto scheduler_op_out;

+

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 ret =3D sched_adjust(d, &op->u.scheduler_op);

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 if ( copy_to_guest(u_domctl, op, 1) )

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 ret =3D -EFAULT;

=A0

-=A0=A0=A0 scheduler_op_out:

-=A0=A0=A0=A0=A0=A0=A0 rcu_unlock_domain(d);

+=A0=A0=A0=A0=A0=A0=A0 scheduler_op_out:

+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 rcu_unlock_domain(d);

+=A0=A0=A0=A0=A0=A0=A0 }

=A0=A0=A0=A0 }

=A0=A0=A0=A0 break;

=A0

diff -rupN a/xen/common/sched_credit.c b/xen/common/sched_credit.c

--- a/xen/common/sched_credit.c=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 2010-04-07 12:12:06.000000000 -0400

+++ b/xen/common/sched_credit.c=A0=A0=A0=A0=A0=A0=A0 2010-04-13 17:30:40.710992000 -0400

@@ -1404,6 +1404,7 @@ const struct scheduler sched_credit_def

=A0=A0=A0=A0 .wake=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 =3D csched_vcpu_wake,

=A0

=A0=A0=A0=A0 .adjust=A0=A0=A0=A0=A0=A0=A0=A0 =3D csched_dom_cntl,

+=A0=A0=A0 .adjust_global=A0 =3D NULL,

=A0

=A0=A0=A0=A0 .pick_cpu=A0=A0=A0=A0=A0=A0 =3D csched_cpu_pick,

=A0=A0=A0=A0 .do_schedule=A0=A0=A0 =3D csched_schedule,

diff -rupN a/xen/common/sched_sedf.c b/xen/common/sched_sedf.c

--- a/xen/common/sched_sedf.c 2010-04-07 12:12:06.000000000 -0400

+++ b/xen/common/sched_sedf.c=A0=A0=A0=A0=A0=A0=A0=A0=A0 2010-04-13 17:30:40.710992000 -0400

@@ -1473,6 +1473,7 @@ const struct scheduler sched_sedf_def =3D

=A0=A0=A0=A0 .sleep=A0=A0=A0=A0=A0=A0=A0=A0=A0 =3D sedf_sleep,

=A0=A0=A0=A0 .wake=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 =3D sedf_wake,

=A0=A0=A0=A0 .adjust=A0=A0=A0=A0=A0=A0=A0=A0 =3D sedf_adjust,

+=A0=A0=A0 .adjust_global=A0 =3D NULL,

=A0};

=A0

=A0/*

diff -rupN a/xen/common/schedule.c b/xen/common/schedule.c

--- a/xen/common/schedule.c=A0=A0=A0=A0 2010-04-07 12:12:06.000000000 -0400

+++ b/xen/common/schedule.c=A0 2010-04-14 10:57:11.262796000 -0400

@@ -804,6 +804,21 @@ long sched_adjust(struct domain *d, stru

=A0=A0=A0=A0 return ret;

=A0}

=A0

+/* Adjust scheduling parameters globally */

+long sched_adjust_global(struct xen_domctl_scheduler_op *op)

+{

+=A0=A0=A0 long ret;

+

+=A0=A0=A0 if ( (op->sched_id !=3D ops.sched_id)

+=A0=A0=A0=A0=A0 || ( (op->cmd !=3D XEN_DOMCTL_SCHEDOP_put_global_info)

+=A0=A0=A0=A0=A0=A0=A0 && (op->cmd !=3D XEN_DOMCTL_SCHEDOP_get_global_info) ) )

+=A0=A0=A0=A0=A0=A0=A0 return -EINVAL;

+

+=A0=A0=A0 ret =3D SCHED_OP(adjust_global, op);

+

+=A0=A0=A0 return ret;

+}

+

=A0static void vcpu_periodic_timer_work(struct vcpu *v)

=A0{

=A0=A0=A0=A0 s_time_t now =3D NOW();

diff -rupN a/xen/include/public/domctl.h b/xen/include/public/domctl.h<= /p>

--- a/xen/include/public/domctl.h 2010-04-07 12:12:06.000000000 -0400<= /p>

+++ b/xen/include/public/domctl.h=A0=A0=A0=A0=A0=A0=A0=A0 2010-04-14 10:57:11.262796000 -0400

@@ -306,6 +306,8 @@ DEFINE_XEN_GUEST_HANDLE(xen_domctl_max_v

=A0/* Set or get info? */

=A0#define XEN_DOMCTL_SCHEDOP_putinfo 0

=A0#define XEN_DOMCTL_SCHEDOP_getinfo 1

+#define XEN_DOMCTL_SCHEDOP_put_global_info 2

+#define XEN_DOMCTL_SCHEDOP_get_global_info 3

=A0struct xen_domctl_scheduler_op {

=A0=A0=A0=A0 uint32_t sched_id;=A0 /* XEN_SCHEDULER_* */

=A0=A0=A0=A0 uint32_t cmd;=A0=A0=A0=A0=A0=A0 /* XEN_DOMCTL_SCHEDOP_* */

diff -rupN a/xen/include/xen/sched.h b/xen/include/xen/sched.h

--- a/xen/include/xen/sched.h=A0=A0=A0=A0=A0 2010-04-07 12:12:06.000000000 -0400

+++ b/xen/include/xen/sched.h=A0 2010-04-13 17:30:40.710992000 -0400

@@ -472,6 +472,7 @@ void sched_destroy_vcpu(struct vcpu *v);

=A0int=A0 sched_init_domain(struct domain *d);

=A0void sched_destroy_domain(struct domain *d);

=A0long sched_adjust(struct domain *, struct xen_domctl_scheduler_op *);

+long sched_adjust_global(struct xen_domctl_scheduler_op *);

=A0int=A0 sched_id(void);

=A0void sched_tick_suspend(void);

=A0void sched_tick_resume(void);

diff -rupN a/xen/include/xen/sched-if.h b/xen/include/xen/sched-if.h

--- a/xen/include/xen/sched-if.h=A0=A0 2010-04-07 12:12:06.000000000 -0400

+++ b/xen/include/xen/sched-if.h=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 2010-04-13 17:30:40.710992000 -0400

@@ -76,6 +76,7 @@ struct scheduler {

=A0=A0=A0=A0 int=A0=A0=A0=A0=A0=A0=A0=A0=A0 (*pick_cpu)=A0=A0=A0=A0=A0=A0 (struct vcpu *);

=A0=A0=A0=A0 int=A0=A0=A0=A0=A0=A0=A0=A0=A0 (*adjust)=A0=A0=A0=A0=A0=A0=A0=A0 (struct domain *,

=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 struct xen_domctl_scheduler_op *);

+=A0=A0=A0 int=A0=A0=A0=A0=A0=A0=A0=A0=A0 (*adjust_global)=A0 (struct xen_domctl_scheduler_op *);

=A0=A0=A0=A0 void=A0=A0=A0=A0=A0=A0=A0=A0 (*dump_settings)=A0 (void);

=A0=A0=A0=A0 void=A0=A0=A0=A0=A0=A0=A0=A0 (*dump_cpu_state) (int);

=A0<= /p>

=A0<= /p>

=A0<= /p>

=A0

=A0


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