freebsd-dev/lib/libkvm/kvm_powerpc64.h
Leandro Lupori d3c34fc0f4 [PPC64] Initial libkvm minidump implementation
This change adds PowerPC64 support for minidumps on libkvm.

Address translation, page walk, and data retrieval were tested and seem to be
working correctly.

Reviewed by:	jhibbits
Differential Revision:	https://reviews.freebsd.org/D21555
2019-12-09 13:59:36 +00:00

82 lines
2.5 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2019 Leandro Lupori
*
* 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 AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
#ifndef __KVM_POWERPC64_H__
#define __KVM_POWERPC64_H__
/* Debug stuff */
#define KVM_PPC64_DBG 0
#if KVM_PPC64_DBG
#include <stdio.h>
#define dprintf(fmt, ...) printf(fmt, ## __VA_ARGS__)
#else
#define dprintf(fmt, ...)
#endif
#define PPC64_KERNBASE 0x100100ULL
/* Page params */
#define PPC64_PAGE_SHIFT 12
#define PPC64_PAGE_SIZE (1ULL << PPC64_PAGE_SHIFT)
#define PPC64_PAGE_MASK (PPC64_PAGE_SIZE - 1)
#define ppc64_round_page(x) roundup2((kvaddr_t)(x), PPC64_PAGE_SIZE)
#define PPC64_MMU_G5 "mmu_g5"
#define PPC64_MMU_PHYP "mmu_phyp"
/* MMU interface */
#define PPC64_MMU_OPS(kd) (kd)->vmst->mmu.ops
#define PPC64_MMU_OP(kd, op, ...) PPC64_MMU_OPS(kd)->op((kd), ## __VA_ARGS__)
#define PPC64_MMU_DATA(kd) (kd)->vmst->mmu.data
struct ppc64_mmu_ops {
int (*init)(kvm_t *);
void (*cleanup)(kvm_t *);
int (*kvatop)(kvm_t *, kvaddr_t, off_t *);
int (*walk_pages)(kvm_t *, kvm_walk_pages_cb_t *, void *);
};
struct ppc64_mmu {
struct ppc64_mmu_ops *ops;
void *data;
};
struct vmstate {
struct minidumphdr hdr;
uint64_t kimg_start;
uint64_t kimg_end;
struct ppc64_mmu mmu;
};
extern struct ppc64_mmu_ops *ppc64_mmu_ops_hpt;
#endif /* !__KVM_POWERPC64_H__ */