34 lines
1 KiB
C
34 lines
1 KiB
C
#include "syslib.h"
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/*===========================================================================*
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* sys_vumap *
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*===========================================================================*/
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int sys_vumap(
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endpoint_t endpt, /* source process endpoint, or SELF */
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struct vumap_vir *vvec, /* virtual (input) vector */
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int vcount, /* number of elements in vvec */
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size_t offset, /* offset into first vvec element */
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int access, /* requested safecopy access flags */
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struct vumap_phys *pvec, /* physical (output) vector */
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int *pcount /* (max, returned) nr of els in pvec */
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)
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{
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message m;
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int r;
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m.m_lsys_krn_sys_vumap.endpt = endpt;
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m.m_lsys_krn_sys_vumap.vaddr = (vir_bytes) vvec;
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m.m_lsys_krn_sys_vumap.vcount = vcount;
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m.m_lsys_krn_sys_vumap.offset = offset;
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m.m_lsys_krn_sys_vumap.access = access;
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m.m_lsys_krn_sys_vumap.paddr = (vir_bytes) pvec;
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m.m_lsys_krn_sys_vumap.pmax = *pcount;
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r = _kernel_call(SYS_VUMAP, &m);
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if (r != OK)
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return r;
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*pcount = m.m_krn_lsys_sys_vumap.pcount;
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return OK;
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}
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