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Diffstat (limited to 'src/arch/riscv/bootblock.S')
| -rw-r--r-- | src/arch/riscv/bootblock.S | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/src/arch/riscv/bootblock.S b/src/arch/riscv/bootblock.S index 514511ed0d..63df92bb38 100644 --- a/src/arch/riscv/bootblock.S +++ b/src/arch/riscv/bootblock.S @@ -19,13 +19,16 @@ .section ".text._start", "ax", %progbits +.globl _stack +.global _estack .globl _start _start: -#define STACK_START 0x80800000 /* 2GiB + 8MiB */ -#define STACK_SIZE 0x0000fff0 - li sp, STACK_START + STACK_SIZE + + # N.B. This only works on low 4G of the address space + # and the stack must be page-aligned. + la sp, _estack # make room for HLS and initialize it addi sp, sp, -64 // MENTRY_FRAME_SIZE @@ -33,7 +36,7 @@ _start: call hls_init # poison the stack - li t1, STACK_START + la t1, _stack li t0, 0xdeadbeef sd t0, 0(t1) |