7e73260cf5
told to kernel
- makes VM ask the kernel if a certain process is allowed
to map in a range of physical memory (VM rounds it to page
boundaries afterwards - but it's impossible to map anything
smaller otherwise so I assume this is safe, i.e. there won't
be anything else in that page; certainly no regular memory)
- VM permission check cleanup (no more hardcoded calls, less
hardcoded logic, more readable main loop), a loose end left
by GQ
- remove do_copy warning, as the ipc server triggers this but
it's no more harmful than the special cases already excluded
explicitly (VFS, PM, etc).
12 lines
225 B
C
12 lines
225 B
C
#include <lib.h>
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#define vm_set_priv _vm_set_priv
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#include <unistd.h>
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PUBLIC int vm_set_priv(int nr, void *buf)
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{
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message m;
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m.VM_RS_NR = nr;
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m.VM_RS_BUF = (long) buf;
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return _syscall(VM_PROC_NR, VM_RS_SET_PRIV, &m);
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}
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