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qemu-e2k/hw/riscv
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Alistair Francis 40e46e516d
riscv: Ensure the kernel start address is correctly cast 
Cast the kernel start address to the target bit length.

This ensures that we calculate the initrd offset to a valid address for
the architecture.

Steps to reproduce the original problem (reported by Alex):
  Build U-Boot for the virt machine for riscv32. Then run it with

    $ qemu-system-riscv32 -M virt -kernel u-boot -nographic -initrd <a file>

  You can find the initrd address with

    U-Boot# fdt addr $fdtcontroladdr
    U-Boot# fdt ls /chosen

  Then take a peek at that address:

    U-Boot# md.b <addr>

  and you will see that there is nothing there without this patch. The
  reason is that the binary was loaded to a negative address.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Suggested-by: Alexander Graf <agraf@suse.de>
Reported-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-02-11 15:56:22 -08:00
..
Makefile.objs hw/riscv/Makefile.objs: Create CONFIG_* for riscv boards 2019-02-05 16:50:20 +01:00
riscv_hart.c riscv_hart: Fix crash when introspecting the device 2018-07-19 09:05:48 -07:00
riscv_htif.c hw: Do not include "exec/address-spaces.h" if it is not necessary 2018-06-01 14:15:10 +02:00
sifive_clint.c RISC-V: Fix CLINT timecmp low 32-bit writes 2018-12-20 12:08:43 -08:00
sifive_e.c riscv: Ensure the kernel start address is correctly cast 2019-02-11 15:56:22 -08:00
sifive_plic.c RISC-V: Fix PLIC pending bitfield reads 2018-12-20 12:08:43 -08:00
sifive_prci.c SiFive RISC-V PRCI Block 2018-03-07 08:30:28 +13:00
sifive_test.c SiFive RISC-V Test Finisher 2018-03-07 08:30:28 +13:00
sifive_u.c riscv: Ensure the kernel start address is correctly cast 2019-02-11 15:56:22 -08:00
sifive_uart.c sifive_uart: Implement interrupt pending register 2018-12-20 12:08:43 -08:00
spike.c riscv: Ensure the kernel start address is correctly cast 2019-02-11 15:56:22 -08:00
virt.c riscv: Ensure the kernel start address is correctly cast 2019-02-11 15:56:22 -08:00