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Diffstat (limited to 'lib/libkvm/kvm_arm.h')
| -rw-r--r-- | lib/libkvm/kvm_arm.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/lib/libkvm/kvm_arm.h b/lib/libkvm/kvm_arm.h new file mode 100644 index 000000000000..fac61039b86a --- /dev/null +++ b/lib/libkvm/kvm_arm.h @@ -0,0 +1,116 @@ +/*- + * 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_ARM_H__ +#define __KVM_ARM_H__ + +typedef uint32_t arm_physaddr_t; +typedef uint32_t arm_pd_entry_t; +typedef uint32_t arm_pt_entry_t; + +#define ARM_PAGE_SHIFT 12 +#define ARM_PAGE_SIZE (1 << ARM_PAGE_SHIFT) /* Page size */ +#define ARM_PAGE_MASK (ARM_PAGE_SIZE - 1) + +#define ARM_L1_TABLE_SIZE 0x4000 /* 16K */ + +#define ARM_L1_S_SIZE 0x00100000 /* 1M */ +#define ARM_L1_S_OFFSET (ARM_L1_S_SIZE - 1) +#define ARM_L1_S_FRAME (~ARM_L1_S_OFFSET) +#define ARM_L1_S_SHIFT 20 + +#define ARM_L2_L_SIZE 0x00010000 /* 64K */ +#define ARM_L2_L_OFFSET (ARM_L2_L_SIZE - 1) +#define ARM_L2_L_FRAME (~ARM_L2_L_OFFSET) +#define ARM_L2_L_SHIFT 16 + +#define ARM_L2_S_SIZE 0x00001000 /* 4K */ +#define ARM_L2_S_OFFSET (ARM_L2_S_SIZE - 1) +#define ARM_L2_S_FRAME (~ARM_L2_S_OFFSET) +#define ARM_L2_S_SHIFT 12 +#define ARM_L2_TEX1 0x00000080 +#define ARM_PTE2_RO ARM_L2_TEX1 +#define ARM_L2_NX 0x00000001 +#define ARM_PTE2_NX ARM_L2_NX + +/* + * Note: L2_S_PROT_W differs depending on whether the system is generic or + * xscale. This isn't easily accessible in this context, so use an + * approximation of 'xscale' which is a subset of 'generic'. + */ +#define ARM_L2_AP0(x) ((x) << 4) +#define ARM_AP_W 0x01 +#define ARM_L2_S_PROT_W (ARM_L2_AP0(ARM_AP_W)) + +#define ARM_L1_TYPE_INV 0x00 /* Invalid (fault) */ +#define ARM_L1_TYPE_C 0x01 /* Coarse L2 */ +#define ARM_L1_TYPE_S 0x02 /* Section */ +#define ARM_L1_TYPE_MASK 0x03 /* Mask of type bits */ + +#define ARM_L1_S_ADDR_MASK 0xfff00000 /* phys address of section */ +#define ARM_L1_C_ADDR_MASK 0xfffffc00 /* phys address of L2 Table */ + +#define ARM_L2_TYPE_INV 0x00 /* Invalid (fault) */ +#define ARM_L2_TYPE_L 0x01 /* Large Page - 64k */ +#define ARM_L2_TYPE_S 0x02 /* Small Page - 4k */ +#define ARM_L2_TYPE_T 0x03 /* Tiny Page - 1k - not used */ +#define ARM_L2_TYPE_MASK 0x03 + +#ifdef __arm__ +#include <machine/acle-compat.h> + +#include <machine/pte.h> + +_Static_assert(PAGE_SHIFT == ARM_PAGE_SHIFT, "PAGE_SHIFT mismatch"); +_Static_assert(PAGE_SIZE == ARM_PAGE_SIZE, "PAGE_SIZE mismatch"); +_Static_assert(PAGE_MASK == ARM_PAGE_MASK, "PAGE_MASK mismatch"); +_Static_assert(L1_TABLE_SIZE == ARM_L1_TABLE_SIZE, "L1_TABLE_SIZE mismatch"); +_Static_assert(L1_S_SIZE == ARM_L1_S_SIZE, "L1_S_SIZE mismatch"); +_Static_assert(L1_S_OFFSET == ARM_L1_S_OFFSET, "L1_S_OFFSET mismatch"); +_Static_assert(L1_S_FRAME == ARM_L1_S_FRAME, "L1_S_FRAME mismatch"); +_Static_assert(L1_S_SHIFT == ARM_L1_S_SHIFT, "L1_S_SHIFT mismatch"); +_Static_assert(L2_L_SIZE == ARM_L2_L_SIZE, "L2_L_SIZE mismatch"); +_Static_assert(L2_L_OFFSET == ARM_L2_L_OFFSET, "L2_L_OFFSET mismatch"); +_Static_assert(L2_L_FRAME == ARM_L2_L_FRAME, "L2_L_FRAME mismatch"); +_Static_assert(L2_L_SHIFT == ARM_L2_L_SHIFT, "L2_L_SHIFT mismatch"); +_Static_assert(L2_S_SIZE == ARM_L2_S_SIZE, "L2_S_SIZE mismatch"); +_Static_assert(L2_S_OFFSET == ARM_L2_S_OFFSET, "L2_S_OFFSET mismatch"); +_Static_assert(L2_S_FRAME == ARM_L2_S_FRAME, "L2_S_FRAME mismatch"); +_Static_assert(L2_S_SHIFT == ARM_L2_S_SHIFT, "L2_S_SHIFT mismatch"); +_Static_assert(L1_TYPE_INV == ARM_L1_TYPE_INV, "L1_TYPE_INV mismatch"); +_Static_assert(L1_TYPE_C == ARM_L1_TYPE_C, "L1_TYPE_C mismatch"); +_Static_assert(L1_TYPE_S == ARM_L1_TYPE_S, "L1_TYPE_S mismatch"); +_Static_assert(L1_TYPE_MASK == ARM_L1_TYPE_MASK, "L1_TYPE_MASK mismatch"); +_Static_assert(L1_S_ADDR_MASK == ARM_L1_S_ADDR_MASK, "L1_S_ADDR_MASK mismatch"); +_Static_assert(L1_C_ADDR_MASK == ARM_L1_C_ADDR_MASK, "L1_C_ADDR_MASK mismatch"); +_Static_assert(L2_TYPE_INV == ARM_L2_TYPE_INV, "L2_TYPE_INV mismatch"); +_Static_assert(L2_TYPE_L == ARM_L2_TYPE_L, "L2_TYPE_L mismatch"); +_Static_assert(L2_TYPE_S == ARM_L2_TYPE_S, "L2_TYPE_S mismatch"); +_Static_assert(L2_TYPE_MASK == ARM_L2_TYPE_MASK, "L2_TYPE_MASK mismatch"); +#endif + +int _arm_native(kvm_t *); + +#endif /* !__KVM_ARM_H__ */ |