| /* | |
| * MicroBlaze cpu parameters for qemu. | |
| * | |
| * Copyright (c) 2009 Edgar E. Iglesias | |
| * SPDX-License-Identifier: LGPL-2.0-or-later | |
| */ | |
| #ifndef MICROBLAZE_CPU_PARAM_H | |
| #define MICROBLAZE_CPU_PARAM_H | |
| /* | |
| * While system mode can address up to 64 bits of address space, | |
| * this is done via the lea/sea instructions, which are system-only | |
| * (as they also bypass the mmu). | |
| * | |
| * We can improve the user-only experience by only exposing 32 bits | |
| * of address space. | |
| */ | |
| #ifdef CONFIG_USER_ONLY | |
| #define TARGET_PHYS_ADDR_SPACE_BITS 32 | |
| #define TARGET_VIRT_ADDR_SPACE_BITS 32 | |
| #else | |
| #define TARGET_PHYS_ADDR_SPACE_BITS 64 | |
| #define TARGET_VIRT_ADDR_SPACE_BITS 64 | |
| #endif | |
| /* FIXME: MB uses variable pages down to 1K but linux only uses 4k. */ | |
| #define TARGET_PAGE_BITS 12 | |
| #define TARGET_INSN_START_EXTRA_WORDS 1 | |
| #endif |