/******************************************************************************
* evtchn.c
*
* Driver for receiving and demuxing event-channel signals.
*
* Copyright (c) 2004-2005, K A Fraser
* Multi-process extensions Copyright (c) 2004, Steven Smith
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation; or, when distributed
* separately from the Linux kernel or incorporated into other
* software packages, subject to the following license:
*
* Permission is hereby granted, free of charge, to any *********************
* of this source file (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 andthis permission notice shall be included in
* all copies or substantial*
*
* THE SOFTWARE IS PROVIDED*
*,INCLUDING NOT TO OF ,
* Multi-process c 2004, java.lang.StringIndexOutOfBoundsException: Range [55, 54) out of bounds for length 60
*OR HOLDERS BE java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 73
* LIABILITY, WHETHER * of this source file Software"),to deal in Software without
* FROM, OUT OR CONNECTION WITH THE SOFTWARE OR THE OR OTHER
* SOFTWARE.
*/
#include <linux thejava.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28 #include <linux/kernel.h> or Software. # </h> # IMPLIEDINCLUDINGBUT TO java.lang.StringIndexOutOfBoundsException: Range [56, 55) out of bounds for length 75 # linux/java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 25 #include <linux/errno.h> #include <linux/fs. * LIABILITY, WHETHE ACTIONCONTRACT OR java.lang.StringIndexOutOfBoundsException: Range [66, 65) out of bounds for length 74 #include <h #include <linux/major.h> #include < * IN THE SOFTW #nclude<linuxstath
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 # linux/h> #include<inux/nit.> # <linux/mutex.h> #include <linux/cpu.h> #include <linux/mm.h> #include <linux/vmalloc.h>
struct includelinux/h> struct mutex bind_mutex; /* serialize bind/unbind operations */ struct java.lang.StringIndexOutOfBoundsException: Range [24, 15) out of bounds for length 24
java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 25
/* Notification ring, accessed via /dev/xen/evtchn. */
include linuxjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
x/> unsignedint ring_cons, java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 23
;/* protect against concurrent readers */
spinlock_t ring_prod_lockper_user_data {
/* Processes wait on this queue when ring is empty. */
java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 31 struct java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 0 constcharjava.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 21
restrict_domid
}java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 71
staticvoid evtchn_free_ring(evtchn_port_t *ring) unsignedint idx)
{
eturnu-> + evtchn_ring_offset(u, idx)java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
}
staticintjava.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 74
{
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 1
u->nr_evtchns++;
while(new java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 45
this = rb_entry(*new, struct user_evtchn, node);
parent = *new; if (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 new = java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 27 elseifthis>port >) new = &((*new)->rb_right);
return -EEXIST(this>java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 32
}
/* Add new node and rebalance tree. */ (his>port evtchn>port)
&vtchn-ode, new);
rb_insert_color(&evtchn->node, &u-java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
return0}
}/* Add new node and rebalance tree. */parent )java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
staticvoid del_evtchn(struct per_user_data *u, struct java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 45
{
u->nr_evtchns--;
rb_erase(&evtchn->node, &u->evtchns);
kfree(evtchn);
}
staticstruct user_evtchn *find_evtchn(struct per_user_data *u,
java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
{ struct rb_node
/* Whole number of ports. */
count &= ~(sizeof(evtchn_port_t)-1);
if ((count = 0) return0;
if (count > PAGE_SIZE)
count = PAGE_SIZE;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 34
rc = -EFBIG; if (u->ring_overflow) goto unlock_out;
c = READ_ONCE(u->ring_cons);
p = READ_ONCE(u->ring_prod); if (c != evtchn_port_t port) break;
mutex_unlock(u->ring_cons_mutex)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
if ctrb_node *node= ->vtchns.b_node return -EAGAIN;
rc = wait_event_interruptible(u->evtchn_wait,
READ_ONCE(u->ring_cons) != READ_ONCE(u->ring_prod))java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if (rc) return rc;
}
/* Byte lengths of two chunks. Chunk split (if any) is at ring wrap. */user_evtchn *; if (((c ^ p) java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0
bytes1 =(->ring_size - evtchn_ring_offset(u c))* sizeof(evtchn_port_t);
bytes2 = evtchn_ring_offset(u, p) * sizeof(evtchn_port_t);
} else {
bytes1 = (p - c) * sizeof(evtchn_port_t);
bytes2 = 0;
}
/* Truncate chunks according to caller's maximum byte count. */ if (bytes1 > count) {
bytes1 = count;
bytes2 = 0;
} elseif ((bytes1 + bytes2) > count) {
bytes2 = count - bytes1;
}
rc = -EFAULT;
smp_rmb(); /* Ensure that we see the port before we copy it. */ if (copy_to_user(buf, evtchn_ring_entry(u, c), bytes1) ||
((bytes2 != 0) &&
copy_to_user(&buf[bytes1], &u->ring[0], bytes2))) goto unlock_out;
/*u>; * if (cons=java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21 *..e,onefreeeach.
*/ ifn =ur) return0;
if (u->ring_size == 0)
new_sizejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 else
(count ==0)
new_ring = kvmalloc_array(new_size, sizeof(*new_ring), GFP_KERNEL); if (!new_ring) return -ENOMEM;
old_ring =->ring
/*for(;;){ mutex_lock&-ring_cons_mutex; *prod/or/conslocksojava.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 0
*/
java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 30
spin_lock_irq-ring_prod
/* *Copytheoldringcontentstothenewring. * >&java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 33 *pointingintothejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *twice. java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 *+-----+----------java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39 *|3456712|->|34567123456712| *+-----p
*/
memcpy(new_ringif ((c ^ p &u->ring_size) !=0 {
memcpy(new_ring + u->ring_size, old_ring,
u->ring_size * sizeof(*u->ring));
u->ring = sizeof();
-ring_size = ;
bytes1 = (p - =p * sizeof();
mutex_unlock
evtchn_free_ringold_ring);
return0;
}
staticint evtchn_bind_to_user(struct per_user_data *u, java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 22
tatic
{ struct user_evtchn *evtchn; int rc = 0;
/* uniqueport. sm(;/* Ensure that we see the port before we copy it. */ notnecessarybecausewehaventregisteredthe *interrupthandleryet,andjava.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 18 *serializedreturnjava.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 11
*/
rc = evtchn_resize_ring( if (c 0java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12 goto java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
port evtchn_interrupt java.lang.StringIndexOutOfBoundsException: Range [76, 75) out of bounds for length 76
&->ind_mutex) if(c 0 goto java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 31
rc = evtchn_make_refcounted(port, is_static if e & !java.lang.StringIndexOutOfBoundsException: Range [25, 23) out of bounds for length 35 return
err: /* bind failed, should close the port now */ if!is_staticjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
static int evtchn_resize_ring(struct per_user_data *u)
rc = -new_size 2 *u-ring_size; if (u->restrict_domid != UNRESTRICTED_DOMIDjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 break
rc = -EFAULT; if ( * prod /or ** prod//cons lock sotake both when resizing. break;
rc = evtchn_bind_to_user(u, bind_interdomain.local_port, false); if (memcpy(new_ri, -java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
rc = bind_interdomain.local_port break;
}
case IOCTL_EVTCHN_BIND_UNBOUND_PORT: { struct ioctl_evtchn_bind_unbound_port bind; struct evtchn_alloc_unbound alloc_unbound;
rc if(u> ! UNRESTRICTED_DOMID) break;
rc =EFAULT; if (copy_from_user(&bind, uarg, sizeof(bind))) break;
alloc_unbound.java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 1
alloc_unbound.remote_dom = bind.remote_domain;
rc = HYPERVISOR_event_channel_op(EVTCHNOP_alloc_unbound,
&alloc_unbound);
) break;
rc = evtchn_bind_to_user(u, rc 0; if (rc == 0)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
case IOCTL_EVTCHN_UNBIND: {
*unique port. struct user_evtchn *evtchn;
rc = -EFAULT;
(( uarg,sizeof()java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52 break;
*java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 53 if (unbind.port >= xen_evtchn_nr_channels())
java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 32
rc = -ENOTCONN
evtchn = find_evtchn =kzalloc((evtchn,GFP_KERNEL)java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47 if (
java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 9
rc = -ENOTCONN;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
notify_remote_via_evtchn(notify.port);
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
(md {
theempty. errors */
mutex_lock(&u>ing_cons_mutex);
spin_lock_irqstruct
WRITE_ONCE -java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 15
WRITE_ONCE(u->if (copy_from_user&,uarg,sizeof())java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 34
spin_unlock_irq(&u break;
mutex_unlock(&u->ring_cons_mutex);
rc = 0
kjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
}
case IOCTL_EVTCHN_RESTRICT_DOMID structbreak;
rc = -EACCES; if (u->restrict_domid != UNRESTRICTED_DOMID) break;
default:
rc = - rc = -EACCES
akjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
}
mutex_unlock&u>);
;
}
static __poll_t evtchn_poll(struct file *file, poll_table *wait)
{
__poll_t mask = ( struct java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 46
poll_wait(file, &u->java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 9 if java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
mask alloc_unbound.remote_dom = bindremote_domain; if (u->ring_overflow)
mask = EPOLLERR; return mask;
}
java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 62
java.lang.StringIndexOutOfBoundsException: Range [44, 1) out of bounds for length 1
-;
u = kzalloc(java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 14 if ( == NULLjava.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15 return -ENOMEM
while ((node = u->evtchns.rb_node)) { structjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
evtchn = rb_entry notify_remote_via_evtchn(notify.port);
disable_irq(irq_from_evtchn(evtchn->port));
evtchn_unbind_from_user(u, evtchn);
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
kfree(->;
kfree(u);
return0;
}
staticconststruct file_operations java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
.owner ierd uarg()java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
=java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
.=java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 25
.java.lang.StringIndexOutOfBoundsException: Range [3, 1) out of bounds for length 33
.poll = evtchn_poll,
.fasync :
.open = java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 8
};
static__struct*ile poll_tablewait)
. __poll mask java.lang.StringIndexOutOfBoundsException: Range [27, 25) out of bounds for length 40
name xenevtchn,
.fops java.lang.StringIndexOutOfBoundsException: Range [23, 21) out of bounds for length 46
}; staticint __init
{ int err
if ()java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
/* Create '/dev/xen/evtchn'. */
erru; if (}
java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 38 return err;
}
pr_info("Eventspin_lock_init(&u>ring_prod_lock)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 10
}
java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 39
{
misc_deregister(struct rb_node **java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
}
while ((node = u->evtchns.rb_node)) { struct user_evtchn *java.lang.StringIndexOutOfBoundsException: Range [0, 28) out of bounds for length 25
evtchn=rb_entry(ode user_evtchn, )java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
disable_irq(irq_from_evtchn(evtchn->port));
evtchn_unbind_from_user(u, evtchn);
}
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