52 lines
2.7 KiB
C
52 lines
2.7 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ This program is free software; you can redistribute it and/or modify │
|
|
│ it under the terms of the GNU General Public License as published by │
|
|
│ the Free Software Foundation; version 2 of the License. │
|
|
│ │
|
|
│ This program is distributed in the hope that it will be useful, but │
|
|
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
|
|
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
|
|
│ General Public License for more details. │
|
|
│ │
|
|
│ You should have received a copy of the GNU General Public License │
|
|
│ along with this program; if not, write to the Free Software │
|
|
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
|
|
│ 02110-1301 USA │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/calls/calls.h"
|
|
#include "libc/mem/mem.h"
|
|
#include "libc/str/str.h"
|
|
#include "tool/build/lib/machine.h"
|
|
#include "tool/build/lib/memory.h"
|
|
#include "tool/build/lib/pml4t.h"
|
|
|
|
void *MallocPage(void) {
|
|
void *p;
|
|
size_t n;
|
|
if ((p = memalign(4096, 4096))) {
|
|
memset(p, 0, 4096);
|
|
}
|
|
return p;
|
|
}
|
|
|
|
int RegisterMemory(struct Machine *m, int64_t v, void *r, size_t n) {
|
|
return RegisterPml4t(m->cr3, v, (int64_t)(intptr_t)r, n, MallocPage);
|
|
}
|
|
|
|
void ResetRam(struct Machine *m) {
|
|
FreePml4t(m->cr3, -0x800000000000, 0x800000000000, free, munmap);
|
|
}
|
|
|
|
struct Machine *NewMachine(void) {
|
|
struct Machine *m;
|
|
m = memalign(alignof(struct Machine), sizeof(struct Machine));
|
|
memset(m, 0, sizeof(struct Machine));
|
|
m->mode = XED_MACHINE_MODE_LONG_64;
|
|
InitMachine(m);
|
|
return m;
|
|
}
|