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| author | Dylan Jhong <dylan@andestech.com> | 2022-04-19 19:59:45 +0800 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2022-04-22 10:35:16 +1000 |
| commit | faee5441a038898f64b335dbaecab102ba406552 (patch) | |
| tree | 367c946d4c6b9f59f46b92f759307e8c5af75de9 /hw/riscv | |
| parent | 013577de8f52fc64d77d1c13d69150b5902420d9 (diff) | |
| download | qemu-faee5441a038898f64b335dbaecab102ba406552.zip qemu-faee5441a038898f64b335dbaecab102ba406552.tar.gz qemu-faee5441a038898f64b335dbaecab102ba406552.tar.bz2 | |
hw/riscv: boot: Support 64bit fdt address.
The current riscv_load_fdt() forces fdt_load_addr to be placed at a dram address within 3GB,
but not all platforms have dram_base within 3GB.
This patch adds an exception for dram base not within 3GB,
which will place fdt at dram_end align 16MB.
riscv_setup_rom_reset_vec() also needs to be modified
Signed-off-by: Dylan Jhong <dylan@andestech.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220419115945.37945-1-dylan@andestech.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'hw/riscv')
| -rw-r--r-- | hw/riscv/boot.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/hw/riscv/boot.c b/hw/riscv/boot.c index 0f179d3..57a41df 100644 --- a/hw/riscv/boot.c +++ b/hw/riscv/boot.c @@ -212,9 +212,9 @@ hwaddr riscv_load_initrd(const char *filename, uint64_t mem_size, return *start + size; } -uint32_t riscv_load_fdt(hwaddr dram_base, uint64_t mem_size, void *fdt) +uint64_t riscv_load_fdt(hwaddr dram_base, uint64_t mem_size, void *fdt) { - uint32_t temp, fdt_addr; + uint64_t temp, fdt_addr; hwaddr dram_end = dram_base + mem_size; int ret, fdtsize = fdt_totalsize(fdt); @@ -229,7 +229,7 @@ uint32_t riscv_load_fdt(hwaddr dram_base, uint64_t mem_size, void *fdt) * Thus, put it at an 16MB aligned address that less than fdt size from the * end of dram or 3GB whichever is lesser. */ - temp = MIN(dram_end, 3072 * MiB); + temp = (dram_base < 3072 * MiB) ? MIN(dram_end, 3072 * MiB) : dram_end; fdt_addr = QEMU_ALIGN_DOWN(temp - fdtsize, 16 * MiB); ret = fdt_pack(fdt); @@ -285,13 +285,15 @@ void riscv_setup_rom_reset_vec(MachineState *machine, RISCVHartArrayState *harts hwaddr start_addr, hwaddr rom_base, hwaddr rom_size, uint64_t kernel_entry, - uint32_t fdt_load_addr, void *fdt) + uint64_t fdt_load_addr, void *fdt) { int i; uint32_t start_addr_hi32 = 0x00000000; + uint32_t fdt_load_addr_hi32 = 0x00000000; if (!riscv_is_32bit(harts)) { start_addr_hi32 = start_addr >> 32; + fdt_load_addr_hi32 = fdt_load_addr >> 32; } /* reset vector */ uint32_t reset_vec[10] = { @@ -304,7 +306,7 @@ void riscv_setup_rom_reset_vec(MachineState *machine, RISCVHartArrayState *harts start_addr, /* start: .dword */ start_addr_hi32, fdt_load_addr, /* fdt_laddr: .dword */ - 0x00000000, + fdt_load_addr_hi32, /* fw_dyn: */ }; if (riscv_is_32bit(harts)) { |