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Real alpha support, minus actual KV -> physical translation. (Does K0SEG -> 

physical translation, though, which is enough for e.g. dmesg and vmstat -i.)
This commit is contained in:
cgd 1996-10-01 19:04:02 +00:00
parent 2af2958a7d
commit 4540a28ede
1 changed files with 44 additions and 4 deletions
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48
lib/libkvm/kvm_alpha.c
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@ -1,4 +1,4 @@
/* $NetBSD: kvm_alpha.c,v 1.3 1996/10/01 14:37:00 cgd Exp $ */ /* $NetBSD: kvm_alpha.c,v 1.4 1996/10/01 19:04:02 cgd Exp $ */
/* /*
* Copyright (c) 1994, 1995 Carnegie-Mellon University. * Copyright (c) 1994, 1995 Carnegie-Mellon University.
@ -31,6 +31,8 @@
#include <sys/user.h> #include <sys/user.h>
#include <sys/proc.h> #include <sys/proc.h>
#include <sys/stat.h> #include <sys/stat.h>
#include <sys/kcore.h>
#include <machine/kcore.h>
#include <unistd.h> #include <unistd.h>
#include <nlist.h> #include <nlist.h>
#include <kvm.h> #include <kvm.h>
@ -64,10 +66,41 @@ _kvm_kvatop(kd, va, pa)
u_long va; u_long va;
u_long *pa; u_long *pa;
{ {
cpu_kcore_hdr_t *cpu_kh;
int rv, page_off;
/* don't forget k0seg translations! */ if (ISALIVE(kd)) {
_kvm_err(kd, 0, "vatop called in live kernel!");
return(0);
}
return (0); cpu_kh = kd->cpu_data;
page_off = va & (cpu_kh->page_size - 1);
if (va >= ALPHA_K0SEG_BASE && va <= ALPHA_K0SEG_END) {
/*
* Direct-mapped address. Just convert it.
*/
*pa = ALPHA_K0SEG_TO_PHYS(va);
rv = cpu_kh->page_size - page_off;
} else if (va >= ALPHA_K1SEG_BASE && va <= ALPHA_K1SEG_END) {
/*
* Real kernel virtual address. Do the translation.
*/
/* XXX TRANSLATE IT! */
goto barf; /* XXX */
} else {
/*
* The address is from space (not a KV address). Return
* values that indicate that it can't be used.
*/
barf: /* XXX */
*pa = -1;
rv = 0;
}
/* printf("_kvm_kvatop va = 0x%lx, returning pa = 0x%lx, rv = 0x%lx\n", va, *pa, rv); */
return (rv);
} }
/* /*
@ -78,6 +111,13 @@ _kvm_pa2off(kd, pa)
kvm_t *kd; kvm_t *kd;
u_long pa; u_long pa;
{ {
off_t off;
cpu_kcore_hdr_t *cpu_kh;
return (-1); cpu_kh = kd->cpu_data;
off = 0;
pa -= cpu_kh->core_seg.start;
return (kd->dump_off + off + pa);
} }