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https://github.com/xen-project/xen.git
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kaf24@firebug.cl.cam.ac.uk
2d0922d515
Make header path for kernel's privcmd/evtchn headers generic. Remove pointless xi_*() interface that was using private libxc interfaces. Signed-off-by: John Levon <john.levon@sun.com>
128 lines
2.6 KiB
C
128 lines
2.6 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_DOM0_OP;
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char *buffer = *pbuffer;
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unsigned int nr_chars = *pnr_chars;
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op.cmd = DOM0_READCONSOLE;
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set_xen_guest_handle(op.u.readconsole.buffer, buffer);
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op.u.readconsole.count = nr_chars;
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op.u.readconsole.clear = clear;
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if ( (ret = mlock(buffer, nr_chars)) != 0 )
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return ret;
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if ( (ret = do_dom0_op(xc_handle, &op)) == 0 )
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*pnr_chars = op.u.readconsole.count;
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safe_munlock(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_DOM0_OP;
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op.cmd = DOM0_PHYSINFO;
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op.interface_version = DOM0_INTERFACE_VERSION;
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if ( (ret = do_dom0_op(xc_handle, &op)) != 0 )
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return ret;
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memcpy(put_info, &op.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_DOM0_OP;
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op.cmd = DOM0_SCHED_ID;
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op.interface_version = DOM0_INTERFACE_VERSION;
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if ( (ret = do_dom0_op(xc_handle, &op)) != 0 )
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return ret;
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*sched_id = op.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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{
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int rc;
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DECLARE_DOM0_OP;
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op.cmd = DOM0_PERFCCONTROL;
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op.u.perfccontrol.op = opcode;
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set_xen_guest_handle(op.u.perfccontrol.desc, desc);
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rc = do_dom0_op(xc_handle, &op);
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return (rc == 0) ? op.u.perfccontrol.nr_counters : rc;
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}
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long long xc_msr_read(int xc_handle, int cpu_mask, int msr)
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{
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int rc;
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DECLARE_DOM0_OP;
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op.cmd = DOM0_MSR;
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op.u.msr.write = 0;
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op.u.msr.msr = msr;
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op.u.msr.cpu_mask = cpu_mask;
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rc = do_dom0_op(xc_handle, &op);
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return (((unsigned long long)op.u.msr.out2)<<32) | op.u.msr.out1 ;
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}
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int xc_msr_write(int xc_handle, int cpu_mask, int msr, unsigned int low,
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unsigned int high)
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{
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int rc;
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DECLARE_DOM0_OP;
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op.cmd = DOM0_MSR;
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op.u.msr.write = 1;
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op.u.msr.msr = msr;
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op.u.msr.cpu_mask = cpu_mask;
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op.u.msr.in1 = low;
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op.u.msr.in2 = high;
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rc = do_dom0_op(xc_handle, &op);
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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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