1 /*- 2 * Copyright (c) 2015 John H. Baldwin <jhb@FreeBSD.org> 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 * 25 * $FreeBSD$ 26 */ 27 28 #ifndef __KVM_ARM_H__ 29 #define __KVM_ARM_H__ 30 31 typedef uint32_t arm_physaddr_t; 32 typedef uint32_t arm_pd_entry_t; 33 typedef uint32_t arm_pt_entry_t; 34 35 #define ARM_PAGE_SHIFT 12 36 #define ARM_PAGE_SIZE (1 << ARM_PAGE_SHIFT) /* Page size */ 37 #define ARM_PAGE_MASK (ARM_PAGE_SIZE - 1) 38 39 #define ARM_L1_TABLE_SIZE 0x4000 /* 16K */ 40 41 #define ARM_L1_S_SIZE 0x00100000 /* 1M */ 42 #define ARM_L1_S_OFFSET (ARM_L1_S_SIZE - 1) 43 #define ARM_L1_S_FRAME (~ARM_L1_S_OFFSET) 44 #define ARM_L1_S_SHIFT 20 45 46 #define ARM_L2_L_SIZE 0x00010000 /* 64K */ 47 #define ARM_L2_L_OFFSET (ARM_L2_L_SIZE - 1) 48 #define ARM_L2_L_FRAME (~ARM_L2_L_OFFSET) 49 #define ARM_L2_L_SHIFT 16 50 51 #define ARM_L2_S_SIZE 0x00001000 /* 4K */ 52 #define ARM_L2_S_OFFSET (ARM_L2_S_SIZE - 1) 53 #define ARM_L2_S_FRAME (~ARM_L2_S_OFFSET) 54 #define ARM_L2_S_SHIFT 12 55 #define ARM_L2_TEX1 0x00000080 56 #define ARM_PTE2_RO ARM_L2_TEX1 57 #define ARM_L2_NX 0x00000001 58 #define ARM_PTE2_NX ARM_L2_NX 59 60 /* 61 * Note: L2_S_PROT_W differs depending on whether the system is generic or 62 * xscale. This isn't easily accessible in this context, so use an 63 * approximation of 'xscale' which is a subset of 'generic'. 64 */ 65 #define ARM_L2_AP0(x) ((x) << 4) 66 #define ARM_AP_W 0x01 67 #define ARM_L2_S_PROT_W (ARM_L2_AP0(ARM_AP_W)) 68 69 #define ARM_L1_TYPE_INV 0x00 /* Invalid (fault) */ 70 #define ARM_L1_TYPE_C 0x01 /* Coarse L2 */ 71 #define ARM_L1_TYPE_S 0x02 /* Section */ 72 #define ARM_L1_TYPE_MASK 0x03 /* Mask of type bits */ 73 74 #define ARM_L1_S_ADDR_MASK 0xfff00000 /* phys address of section */ 75 #define ARM_L1_C_ADDR_MASK 0xfffffc00 /* phys address of L2 Table */ 76 77 #define ARM_L2_TYPE_INV 0x00 /* Invalid (fault) */ 78 #define ARM_L2_TYPE_L 0x01 /* Large Page - 64k */ 79 #define ARM_L2_TYPE_S 0x02 /* Small Page - 4k */ 80 #define ARM_L2_TYPE_T 0x03 /* Tiny Page - 1k - not used */ 81 #define ARM_L2_TYPE_MASK 0x03 82 83 #ifdef __arm__ 84 #include <machine/acle-compat.h> 85 86 #if __ARM_ARCH >= 6 87 #include <machine/pte-v6.h> 88 #else 89 #include <machine/pte-v4.h> 90 #endif 91 92 _Static_assert(PAGE_SHIFT == ARM_PAGE_SHIFT, "PAGE_SHIFT mismatch"); 93 _Static_assert(PAGE_SIZE == ARM_PAGE_SIZE, "PAGE_SIZE mismatch"); 94 _Static_assert(PAGE_MASK == ARM_PAGE_MASK, "PAGE_MASK mismatch"); 95 _Static_assert(L1_TABLE_SIZE == ARM_L1_TABLE_SIZE, "L1_TABLE_SIZE mismatch"); 96 _Static_assert(L1_S_SIZE == ARM_L1_S_SIZE, "L1_S_SIZE mismatch"); 97 _Static_assert(L1_S_OFFSET == ARM_L1_S_OFFSET, "L1_S_OFFSET mismatch"); 98 _Static_assert(L1_S_FRAME == ARM_L1_S_FRAME, "L1_S_FRAME mismatch"); 99 _Static_assert(L1_S_SHIFT == ARM_L1_S_SHIFT, "L1_S_SHIFT mismatch"); 100 _Static_assert(L2_L_SIZE == ARM_L2_L_SIZE, "L2_L_SIZE mismatch"); 101 _Static_assert(L2_L_OFFSET == ARM_L2_L_OFFSET, "L2_L_OFFSET mismatch"); 102 _Static_assert(L2_L_FRAME == ARM_L2_L_FRAME, "L2_L_FRAME mismatch"); 103 _Static_assert(L2_L_SHIFT == ARM_L2_L_SHIFT, "L2_L_SHIFT mismatch"); 104 _Static_assert(L2_S_SIZE == ARM_L2_S_SIZE, "L2_S_SIZE mismatch"); 105 _Static_assert(L2_S_OFFSET == ARM_L2_S_OFFSET, "L2_S_OFFSET mismatch"); 106 _Static_assert(L2_S_FRAME == ARM_L2_S_FRAME, "L2_S_FRAME mismatch"); 107 _Static_assert(L2_S_SHIFT == ARM_L2_S_SHIFT, "L2_S_SHIFT mismatch"); 108 _Static_assert(L1_TYPE_INV == ARM_L1_TYPE_INV, "L1_TYPE_INV mismatch"); 109 _Static_assert(L1_TYPE_C == ARM_L1_TYPE_C, "L1_TYPE_C mismatch"); 110 _Static_assert(L1_TYPE_S == ARM_L1_TYPE_S, "L1_TYPE_S mismatch"); 111 _Static_assert(L1_TYPE_MASK == ARM_L1_TYPE_MASK, "L1_TYPE_MASK mismatch"); 112 _Static_assert(L1_S_ADDR_MASK == ARM_L1_S_ADDR_MASK, "L1_S_ADDR_MASK mismatch"); 113 _Static_assert(L1_C_ADDR_MASK == ARM_L1_C_ADDR_MASK, "L1_C_ADDR_MASK mismatch"); 114 _Static_assert(L2_TYPE_INV == ARM_L2_TYPE_INV, "L2_TYPE_INV mismatch"); 115 _Static_assert(L2_TYPE_L == ARM_L2_TYPE_L, "L2_TYPE_L mismatch"); 116 _Static_assert(L2_TYPE_S == ARM_L2_TYPE_S, "L2_TYPE_S mismatch"); 117 #if __ARM_ARCH < 6 118 _Static_assert(L2_TYPE_T == ARM_L2_TYPE_T, "L2_TYPE_T mismatch"); 119 #endif 120 _Static_assert(L2_TYPE_MASK == ARM_L2_TYPE_MASK, "L2_TYPE_MASK mismatch"); 121 #endif 122 123 int _arm_native(kvm_t *); 124 125 #endif /* !__KVM_ARM_H__ */ 126