/* $NetBSD: kvm_powerpc64.c,v 1.8 2023/08/23 14:00:11 rin Exp $ */
/*
* Copyright (c) 2005 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Allen Briggs for Wasabi Systems, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*-
* Copyright (C) 1996 Wolfgang Solfrank.
* Copyright (C) 1996 TooLs GmbH.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* PowerPC machine dependent routines for kvm.
*/
#include <sys/param.h>
#include <sys/exec.h>
#include <sys/types.h>
#include <uvm/uvm_extern.h>
#include <db.h>
#include <limits.h>
#include <kvm.h>
#include <stdlib.h>
#include <unistd.h>
#include "kvm_private.h"
#include <sys/kcore.h>
#include <machine/kcore.h>
#include <powerpc/spr.h>
#include <powerpc/oea/bat.h>
#include <powerpc/oea/pte.h>
__RCSID("$NetBSD: kvm_powerpc64.c,v 1.8 2023/08/23 14:00:11 rin Exp $");
void
_kvm_freevtop(kvm_t *kd)
{
if (kd->vmst != 0)
free(kd->vmst);
}
/*ARGSUSED*/
int
_kvm_initvtop(kvm_t *kd)
{
return 0;
}
#define SR_VSID_HASH_MASK 0x0007ffff
#define HASH_MASK 0x0007ffff
/*
* Translate a KVA to a PA
*/
int
_kvm_kvatop(kvm_t *kd, vaddr_t va, paddr_t *pa)
{
if (ISALIVE(kd)) {
_kvm_err(kd, 0, "vatop called in live kernel!");
return 0;
}
#if 0
cpu_kcore_hdr_t *cpu_kh = kd->cpu_data;
uint32_t pvr = (cpu_kh->pvr >> 16);
#endif
/* No hit -- no translation */
*pa = (u_long)~0UL;
return 0;
}
off_t
_kvm_pa2off(kvm_t *kd, paddr_t pa)
{
cpu_kcore_hdr_t *cpu_kh;
phys_ram_seg_t *ram;
off_t off;
void *e;
cpu_kh = kd->cpu_data;
e = (char *) kd->cpu_data + kd->cpu_dsize;
ram = (void *)((char *)(void *)cpu_kh + ALIGN(sizeof *cpu_kh));
off = kd->dump_off;
do {
if (pa >= ram->start && (pa - ram->start) < ram->size) {
return off + (pa - ram->start);
}
ram++;
off += ram->size;
} while ((void *) ram < e && ram->size);
_kvm_err(kd, 0, "pa2off failed for pa 0x%08lx\n", pa);
return (off_t) -1;
}
/*
* Machine-dependent initialization for ALL open kvm descriptors,
* not just those for a kernel crash dump. Some architectures
* have to deal with these NOT being constants! (i.e. m68k)
*/
int
_kvm_mdopen(kvm_t *kd)
{
uintptr_t max_uva;
extern struct ps_strings *__ps_strings;
#if 0 /* XXX - These vary across powerpc machines... */
kd->min_uva = VM_MIN_ADDRESS;
kd->max_uva = VM_MAXUSER_ADDRESS;
#endif
/* This is somewhat hack-ish, but it works. */
max_uva = (uintptr_t) (__ps_strings + 1);
kd->max_uva = max_uva;
kd->min_uva = 0;
return (0);
}
