Mercurial > hg > CbC > CbC_xv6

comparison src/impl/vm_impl_private.cbc @ 213:7a4d299a35be

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
paging_init
author tobaru
date Fri, 24 Jan 2020 18:10:26 +0900
parents 098942ff5f44
children 90b65036d9a2
comparison
equal deleted inserted replaced
212:098942ff5f44 213:7a4d299a35be
1 #include "../../context.h" 1 #include "../../context.h"
2 #include "mmu.h" 2 #include "mmu.h"
3 #include "defs.h"
3 #include "memlayout.h" 4 #include "memlayout.h"
4 #interface "vm_impl.h" 5 #interface "vm_impl.h"
5 6
6 /* 7 /*
7 vm_impl* createvm_impl2(); 8 vm_impl* createvm_impl2();
309 } 310 }
310 ret = (char*) p2v(PTE_ADDR(*pte)); 311 ret = (char*) p2v(PTE_ADDR(*pte));
311 goto next(ret, ...); 312 goto next(ret, ...);
312 } 313 }
313 314
315 // flush all TLB
316 static void flush_tlb (void)
317 {
318 uint val = 0;
319 asm("MCR p15, 0, %[r], c8, c7, 0" : :[r]"r" (val):);
320
321 // invalid entire data and instruction cache
322 asm ("MCR p15,0,%[r],c7,c10,0": :[r]"r" (val):);
323 asm ("MCR p15,0,%[r],c7,c11,0": :[r]"r" (val):);
324 }
325
326 __code paging_intvmvm_impl(struct vm_impl* vm_impl, uint phy_low, uint phy_hi, __code next(...)) {
327 mappages (P2V(&_kernel_pgtbl), P2V(phy_low), phy_hi - phy_low, phy_low, AP_KU);
328 flush_tlb ();
329
330 goto next(...));
331 }
332