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kfraser@localhost.localdomain
a3fc4d842e
On solaris mlock requires a page aligned address and mlock doesn't ensure the pages won't minor page fault. Signed-off-by: Mark Johnson <mark.johnson@sun.com>
101 lines
2.2 KiB
C
101 lines
2.2 KiB
C
/******************************************************************************
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* xc_misc.c
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*
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* Miscellaneous control interface functions.
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*/
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#include "xc_private.h"
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int xc_readconsolering(int xc_handle,
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char **pbuffer,
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unsigned int *pnr_chars,
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int clear)
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{
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int ret;
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DECLARE_SYSCTL;
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char *buffer = *pbuffer;
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unsigned int nr_chars = *pnr_chars;
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sysctl.cmd = XEN_SYSCTL_readconsole;
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set_xen_guest_handle(sysctl.u.readconsole.buffer, buffer);
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sysctl.u.readconsole.count = nr_chars;
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sysctl.u.readconsole.clear = clear;
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if ( (ret = lock_pages(buffer, nr_chars)) != 0 )
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return ret;
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if ( (ret = do_sysctl(xc_handle, &sysctl)) == 0 )
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*pnr_chars = sysctl.u.readconsole.count;
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unlock_pages(buffer, nr_chars);
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return ret;
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}
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int xc_physinfo(int xc_handle,
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xc_physinfo_t *put_info)
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{
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int ret;
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DECLARE_SYSCTL;
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sysctl.cmd = XEN_SYSCTL_physinfo;
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if ( (ret = do_sysctl(xc_handle, &sysctl)) != 0 )
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return ret;
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memcpy(put_info, &sysctl.u.physinfo, sizeof(*put_info));
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return 0;
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}
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int xc_sched_id(int xc_handle,
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int *sched_id)
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{
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int ret;
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DECLARE_SYSCTL;
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sysctl.cmd = XEN_SYSCTL_sched_id;
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if ( (ret = do_sysctl(xc_handle, &sysctl)) != 0 )
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return ret;
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*sched_id = sysctl.u.sched_id.sched_id;
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return 0;
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}
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int xc_perfc_control(int xc_handle,
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uint32_t opcode,
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xc_perfc_desc_t *desc,
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xc_perfc_val_t *val,
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int *nbr_desc,
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int *nbr_val)
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{
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int rc;
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DECLARE_SYSCTL;
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sysctl.cmd = XEN_SYSCTL_perfc_op;
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sysctl.u.perfc_op.cmd = opcode;
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set_xen_guest_handle(sysctl.u.perfc_op.desc, desc);
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set_xen_guest_handle(sysctl.u.perfc_op.val, val);
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rc = do_sysctl(xc_handle, &sysctl);
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if (nbr_desc)
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*nbr_desc = sysctl.u.perfc_op.nr_counters;
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if (nbr_val)
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*nbr_val = sysctl.u.perfc_op.nr_vals;
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return rc;
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}
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/*
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* Local variables:
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* mode: C
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* c-set-style: "BSD"
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* c-basic-offset: 4
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* tab-width: 4
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* indent-tabs-mode: nil
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* End:
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*/
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