46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
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#include "zero.h"
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#include "alloc.h"
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struct zeroMappedEntry {
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int refCnt;
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};
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static int zeroOpen(struct uAddrVirtualReg *vreg)
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{
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(void)vreg;
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return 0;
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}
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static int zeroClose(struct uAddrVirtualReg *vreg)
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{
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(void)vreg;
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return 0;
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}
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static int zeroNoPage(struct uAddrVirtualReg *vreg, uaddr_t addr, int right)
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{
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(void)vreg;
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(void)addr;
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(void)right;
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return 0;
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}
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static struct mappedRessourceOps zeroOps = {
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.open = zeroOpen,
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.close = zeroClose,
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.unmap = NULL,
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.nopage = zeroNoPage,
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};
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int zeroMmap(struct uAddrSpace *as, uaddr_t *uaddr, size_t size, uint32_t rights, uint32_t flags)
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{
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struct mappedRessource *res = (struct mappedRessource *)zalloc(sizeof(struct mappedRessource));
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struct zeroMappedEntry *cust = (struct zeroMappedEntry *)zalloc(sizeof(struct zeroMappedEntry));
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res->allowedRight = PAGING_MEM_READ | PAGING_MEM_WRITE | PAGING_MEM_EXEC | PAGING_MEM_USER;
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res->ops = &zeroOps;
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res->customData = cust;
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uAddrSpaceMmap(as, uaddr, size, rights, flags, res);
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return 0;
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}
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