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| author |   Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com> | 2023-10-10 11:40:56 +0000 |
|---|---|---|
| committer | Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com> | 2023-10-10 11:40:56 +0000 |
| commit | e02cda008591317b1625707ff8e115a4841aa889 (patch) | |
| tree | aee302e3cf8b59ec2d32ec481be3d1afddfc8968 /target/riscv/cpu-param.h | |
| parent | cc668e6b7e0ffd8c9d130513d12053cf5eda1d3b (diff) | |
Introduce Virtio-loopback epsilon release:
Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.
Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9
Diffstat (limited to 'target/riscv/cpu-param.h')
| -rw-r--r-- | target/riscv/cpu-param.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/target/riscv/cpu-param.h b/target/riscv/cpu-param.h new file mode 100644 index 000000000..80eb615f9 --- /dev/null +++ b/target/riscv/cpu-param.h @@ -0,0 +1,32 @@ +/* + * RISC-V cpu parameters for qemu. + * + * Copyright (c) 2017-2018 SiFive, Inc. + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef RISCV_CPU_PARAM_H +#define RISCV_CPU_PARAM_H 1 + +#if defined(TARGET_RISCV64) +# define TARGET_LONG_BITS 64 +# define TARGET_PHYS_ADDR_SPACE_BITS 56 /* 44-bit PPN */ +# define TARGET_VIRT_ADDR_SPACE_BITS 48 /* sv48 */ +#elif defined(TARGET_RISCV32) +# define TARGET_LONG_BITS 32 +# define TARGET_PHYS_ADDR_SPACE_BITS 34 /* 22-bit PPN */ +# define TARGET_VIRT_ADDR_SPACE_BITS 32 /* sv32 */ +#endif +#define TARGET_PAGE_BITS 12 /* 4 KiB Pages */ +/* + * The current MMU Modes are: + * - U mode 0b000 + * - S mode 0b001 + * - M mode 0b011 + * - U mode HLV/HLVX/HSV 0b100 + * - S mode HLV/HLVX/HSV 0b101 + * - M mode HLV/HLVX/HSV 0b111 + */ +#define NB_MMU_MODES 8 + +#endif |