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Diffstat (limited to 'lib/libkvm/kvm_aarch64.h')
| -rw-r--r-- | lib/libkvm/kvm_aarch64.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/lib/libkvm/kvm_aarch64.h b/lib/libkvm/kvm_aarch64.h new file mode 100644 index 000000000000..7727c85c15ac --- /dev/null +++ b/lib/libkvm/kvm_aarch64.h @@ -0,0 +1,63 @@ +/*- + * 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. + */ + +#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__ */ |