diff options
| author | matt <matt@NetBSD.org> | 2014-09-19 17:36:24 +0000 |
|---|---|---|
| committer | matt <matt@NetBSD.org> | 2014-09-19 17:36:24 +0000 |
| commit | 25195b1e580593d7db7375fb8a883f3cb9df3cce (patch) | |
| tree | ebf58bf7ac2dda20ebb4d45153ec831dc590c76d /lib/libkvm | |
| parent | 2a9c01cfd73c186ddd2af4732708c88047ffdc1a (diff) | |
New files for Userland support of UCB RISC-V (both 32-bit and 64-bit)
Diffstat (limited to 'lib/libkvm')
| -rw-r--r-- | lib/libkvm/kvm_riscv.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/lib/libkvm/kvm_riscv.c b/lib/libkvm/kvm_riscv.c new file mode 100644 index 00000000000..b41bc90cd3d --- /dev/null +++ b/lib/libkvm/kvm_riscv.c @@ -0,0 +1,126 @@ +/* $NetBSD: kvm_riscv.c,v 1.1 2014/09/19 17:36:25 matt Exp $ */ + +/*- + * Copyright (c) 2014 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Matt Thomas of 3am Software Foundry. + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``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 THE FOUNDATION OR CONTRIBUTORS + * 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. + */ + +/* + * OR1K 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 <machine/vmparam.h> + +__RCSID("$NetBSD: kvm_riscv.c,v 1.1 2014/09/19 17:36:25 matt Exp $"); + +void +_kvm_freevtop(kvm_t *kd) +{ + if (kd->vmst != 0) + free(kd->vmst); +} + +/*ARGSUSED*/ +int +_kvm_initvtop(kvm_t *kd) +{ + + return 0; +} + +/* + * Translate a KVA to a PA + */ +int +_kvm_kvatop(kvm_t *kd, vaddr_t va, paddr_t *pa) +{ +// cpu_kcore_hdr_t *cpu_kh; + + if (ISALIVE(kd)) { + _kvm_err(kd, 0, "vatop called in live kernel!"); + return 0; + } + + /* 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 %#" PRIxPADDR "\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) +{ + kd->usrstack = USRSTACK; + kd->min_uva = VM_MIN_ADDRESS; + kd->max_uva = VM_MAXUSER_ADDRESS; + + return (0); +} |
