diff options
Diffstat (limited to 'arch/riscv64/config.h')
| -rw-r--r-- | arch/riscv64/config.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/riscv64/config.h b/arch/riscv64/config.h index 0421341..5ea5482 100644 --- a/arch/riscv64/config.h +++ b/arch/riscv64/config.h @@ -27,13 +27,19 @@ /* don't touch >:( */ -/** Physical address to where the kernel proper will be relocated. */ -#define PM_KERN_BASE (RAM_BASE + SZ_512K) +/** + * How much space to reserve for possible firmware region. + * Assumed to be at start of RAM. + */ +#define FW_MAX_SIZE (SZ_2M) /** Maximum size of the kernel proper. Largely arbitrary. */ /** \todo UBSAN is getting pretty close to this limit, should it be raised? */ #define PM_KERN_SIZE (SZ_256K) +/** Physical address to where the kernel proper will be relocated. */ +#define PM_KERN_BASE (RAM_BASE + FW_MAX_SIZE + PM_KERN_SIZE) + /** Highest allowed physical address where kernel stuff may lie. */ #define PM_KERN_TOP (PM_KERN_BASE + PM_KERN_SIZE) @@ -53,7 +59,7 @@ #define VM_DMAP (0xffffffc000000000) /* testing for now */ /** Virtual address of kernel proper inside direct mapping. */ -#define VM_KERN (VM_DMAP + SZ_256K) +#define VM_KERN (VM_DMAP + FW_MAX_SIZE) /** Page reserved for kernel I/O. */ #define IO_PAGE 511UL |