freebsd-nq/lib/libkvm/kvm_aarch64.h
Andrew Turner f2e36d47e3 Make page size dynamic in libkvm for arm64
To allow for a future 16k or 64k page size we need to tell libkvm which
is being used. Add a flag field in unused space in minidumphdr and use
it to signal between the different options.

Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D34548
2022-03-15 09:52:15 +00:00

66 lines
2.4 KiB
C

/*-
* Copyright (c) 2015 John H. Baldwin <jhb@FreeBSD.org>
*
* 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_AARCH64_H__
#define __KVM_AARCH64_H__
#ifdef __aarch64__
#include <machine/pte.h>
#endif
typedef uint64_t aarch64_physaddr_t;
typedef uint64_t aarch64_pte_t;
#define AARCH64_PAGE_SHIFT_4K 12
#define AARCH64_PAGE_SIZE_4K (1 << AARCH64_PAGE_SHIFT_4K)
#define AARCH64_PAGE_SHIFT_16K 14
#define AARCH64_PAGE_SIZE_16K (1 << AARCH64_PAGE_SHIFT_16K)
/* Source: arm64/include/pte.h */
#define AARCH64_ATTR_MASK 0xfffc000000000fff
#define AARCH64_ATTR_UXN (1ULL << 54)
#define AARCH64_ATTR_PXN (1ULL << 53)
#define AARCH64_ATTR_XN (AARCH64_ATTR_PXN | AARCH64_ATTR_UXN)
#define AARCH64_ATTR_AP(x) ((x) << 6)
#define AARCH64_ATTR_AP_RO (1 << 1)
#define AARCH64_ATTR_DESCR_MASK 3
#define AARCH64_L3_SHIFT_4K 12
#define AARCH64_L3_SHIFT_16K 14
#define AARCH64_L3_PAGE 0x3
#ifdef __aarch64__
_Static_assert(ATTR_MASK == AARCH64_ATTR_MASK, "ATTR_MASK mismatch");
_Static_assert(ATTR_DESCR_MASK == AARCH64_ATTR_DESCR_MASK,
"ATTR_DESCR_MASK mismatch");
_Static_assert(L3_PAGE == AARCH64_L3_PAGE, "L3_PAGE mismatch");
#endif
#endif /* !__KVM_AARCH64_H__ */