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/******************************************************************************
* xc_misc.c
*
* Miscellaneous control interface functions.
*/
#include "xc_private.h"
int xc_readconsolering(int xc_handle,
char **pbuffer,
unsigned int *pnr_chars,
int clear)
{
int ret;
DECLARE_SYSCTL;
char *buffer = *pbuffer;
unsigned int nr_chars = *pnr_chars;
sysctl.cmd = XEN_SYSCTL_readconsole;
set_xen_guest_handle(sysctl.u.readconsole.buffer, buffer);
sysctl.u.readconsole.count = nr_chars;
sysctl.u.readconsole.clear = clear;
if ( (ret = mlock(buffer, nr_chars)) != 0 )
return ret;
if ( (ret = do_sysctl(xc_handle, &sysctl)) == 0 )
*pnr_chars = sysctl.u.readconsole.count;
safe_munlock(buffer, nr_chars);
return ret;
}
int xc_physinfo(int xc_handle,
xc_physinfo_t *put_info)
{
int ret;
DECLARE_SYSCTL;
sysctl.cmd = XEN_SYSCTL_physinfo;
if ( (ret = do_sysctl(xc_handle, &sysctl)) != 0 )
return ret;
memcpy(put_info, &sysctl.u.physinfo, sizeof(*put_info));
return 0;
}
int xc_sched_id(int xc_handle,
int *sched_id)
{
int ret;
DECLARE_SYSCTL;
sysctl.cmd = XEN_SYSCTL_sched_id;
if ( (ret = do_sysctl(xc_handle, &sysctl)) != 0 )
return ret;
*sched_id = sysctl.u.sched_id.sched_id;
return 0;
}
int xc_perfc_control(int xc_handle,
uint32_t opcode,
xc_perfc_desc_t *desc,
xc_perfc_val_t *val,
int *nbr_desc,
int *nbr_val)
{
int rc;
DECLARE_SYSCTL;
sysctl.cmd = XEN_SYSCTL_perfc_op;
sysctl.u.perfc_op.cmd = opcode;
set_xen_guest_handle(sysctl.u.perfc_op.desc, desc);
set_xen_guest_handle(sysctl.u.perfc_op.val, val);
rc = do_sysctl(xc_handle, &sysctl);
if (nbr_desc)
*nbr_desc = sysctl.u.perfc_op.nr_counters;
if (nbr_val)
*nbr_val = sysctl.u.perfc_op.nr_vals;
return rc;
}
/*
* Local variables:
* mode: C
* c-set-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/
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