diff options
Diffstat (limited to 'lib/libkvm/kvm_riscv.h')
| -rw-r--r-- | lib/libkvm/kvm_riscv.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/lib/libkvm/kvm_riscv.h b/lib/libkvm/kvm_riscv.h new file mode 100644 index 000000000000..fc0e4895a748 --- /dev/null +++ b/lib/libkvm/kvm_riscv.h @@ -0,0 +1,87 @@ +/*- + * Copyright (c) 2015 John H. Baldwin <jhb@FreeBSD.org> + * Copyright (c) 2019 Mitchell Horne + * + * 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_RISCV_H__ +#define __KVM_RISCV_H__ + +#ifdef __riscv +#include <machine/pte.h> +#endif + +typedef uint64_t riscv_physaddr_t; +typedef uint64_t riscv_pt_entry_t; + +#define RISCV_PAGE_SHIFT 12 +#define RISCV_PAGE_SIZE (1 << RISCV_PAGE_SHIFT) +#define RISCV_PAGE_MASK (RISCV_PAGE_SIZE - 1) + +/* Source: sys/riscv/include/pte.h */ +#define RISCV_L3_SHIFT 12 +#define RISCV_L3_SIZE (1 << L3_SHIFT) +#define RISCV_L3_OFFSET (L3_SIZE - 1) + +#define RISCV_PTE_SW_MANAGED (1 << 9) +#define RISCV_PTE_SW_WIRED (1 << 8) +#define RISCV_PTE_D (1 << 7) /* Dirty */ +#define RISCV_PTE_A (1 << 6) /* Accessed */ +#define RISCV_PTE_G (1 << 5) /* Global */ +#define RISCV_PTE_U (1 << 4) /* User */ +#define RISCV_PTE_X (1 << 3) /* Execute */ +#define RISCV_PTE_W (1 << 2) /* Write */ +#define RISCV_PTE_R (1 << 1) /* Read */ +#define RISCV_PTE_V (1 << 0) /* Valid */ +#define RISCV_PTE_RWX (RISCV_PTE_R | RISCV_PTE_W | RISCV_PTE_X) + +#define RISCV_PTE_PPN0_S 10 + +#ifdef __riscv +_Static_assert(sizeof(pt_entry_t) == sizeof(riscv_pt_entry_t), + "pt_entry_t size mismatch"); + +_Static_assert(PAGE_SHIFT == RISCV_PAGE_SHIFT, "PAGE_SHIFT mismatch"); +_Static_assert(PAGE_SIZE == RISCV_PAGE_SIZE, "PAGE_SIZE mismatch"); +_Static_assert(PAGE_MASK == RISCV_PAGE_MASK, "PAGE_MASK mismatch"); + +_Static_assert(L3_SHIFT == RISCV_L3_SHIFT, "L3_SHIFT mismatch"); +_Static_assert(L3_SIZE == RISCV_L3_SIZE, "L3_SIZE mismatch"); +_Static_assert(L3_OFFSET == RISCV_L3_OFFSET, "L3_OFFSET mismatch"); +_Static_assert(PTE_PPN0_S == RISCV_PTE_PPN0_S, "PTE_PPN0_S mismatch"); + +_Static_assert(PTE_SW_MANAGED == RISCV_PTE_SW_MANAGED, + "PTE_SW_MANAGED mismatch"); +_Static_assert(PTE_SW_WIRED == RISCV_PTE_SW_WIRED, "PTE_SW_WIRED mismatch"); +_Static_assert(PTE_D == RISCV_PTE_D, "PTE_D mismatch"); +_Static_assert(PTE_A == RISCV_PTE_A, "PTE_A mismatch"); +_Static_assert(PTE_G == RISCV_PTE_G, "PTE_G mismatch"); +_Static_assert(PTE_U == RISCV_PTE_U, "PTE_U mismatch"); +_Static_assert(PTE_X == RISCV_PTE_X, "PTE_X mismatch"); +_Static_assert(PTE_W == RISCV_PTE_W, "PTE_W mismatch"); +_Static_assert(PTE_R == RISCV_PTE_R, "PTE_R mismatch"); +_Static_assert(PTE_V == RISCV_PTE_V, "PTE_V mismatch"); +_Static_assert(PTE_RWX == RISCV_PTE_RWX, "PTE_RWX mismatch"); +#endif + +#endif /* !__KVM_RISCV_H__ */ |