53 lines
1 KiB
C
53 lines
1 KiB
C
#include "syslib.h"
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#include <sys/mman.h>
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#include <minix/vm.h>
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#include <stdarg.h>
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#include <string.h>
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void *
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vm_map_phys(endpoint_t who, void *phaddr, size_t len)
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{
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message m;
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int r;
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memset(&m, 0, sizeof(m));
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m.m_lsys_vm_map_phys.ep = who;
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m.m_lsys_vm_map_phys.phaddr = (phys_bytes)phaddr;
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m.m_lsys_vm_map_phys.len = len;
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r = _taskcall(VM_PROC_NR, VM_MAP_PHYS, &m);
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if (r != OK) return MAP_FAILED;
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r = sef_llvm_add_special_mem_region(m.m_lsys_vm_map_phys.reply,
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len, NULL);
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if(r < 0) {
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printf("vm_map_phys: add_special_mem_region failed: %d\n", r);
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}
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return m.m_lsys_vm_map_phys.reply;
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}
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int
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vm_unmap_phys(endpoint_t who, void *vaddr, size_t len)
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{
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message m;
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int r;
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memset(&m, 0, sizeof(m));
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m.m_lsys_vm_unmap_phys.ep = who;
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m.m_lsys_vm_unmap_phys.vaddr = vaddr;
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r = _taskcall(VM_PROC_NR, VM_UNMAP_PHYS, &m);
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if(r != OK) return r;
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r = sef_llvm_del_special_mem_region_by_addr(vaddr);
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if(r < 0) {
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printf("vm_map_phys: del_special_mem_region failed: %d\n", r);
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}
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return OK;
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}
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