[PATCH 00/12] hw/riscv: Improve Spike HTIF emulation fidelity

[Bin Meng <bmeng@tinylab.org>]

At present the 32-bit OpenSBI generic firmware image does not boot on
Spike, only 64-bit image can. This is due to the HTIF emulation does
not implement the proxy syscall interface which is required for the
32-bit HTIF console output.

An OpenSBI bug fix [1] is also needed when booting the plain binary image.

With this series plus the above OpenSBI fix, both 32-bit OpenSBI BIN & ELF
images can boot on QEMU 'spike' machine.

[1] https://patchwork.ozlabs.org/project/opensbi/patch/20221226033603.1860569-1-bmeng@tinylab.org/


Bin Meng (10):
  hw/char: riscv_htif: Avoid using magic numbers
  hw/char: riscv_htif: Drop {to,from}host_size in HTIFState
  hw/char: riscv_htif: Drop useless assignment of memory region
  hw/char: riscv_htif: Use conventional 's' for HTIFState
  hw/char: riscv_htif: Move registers from CPUArchState to HTIFState
  hw/char: riscv_htif: Remove forward declarations for non-existent
    variables
  hw/char: riscv_htif: Support console output via proxy syscall
  hw/riscv: spike: Remove the out-of-date comments
  hw/riscv/boot.c: Introduce riscv_find_firmware()
  hw/riscv: spike: Decouple create_fdt() dependency to ELF loading

Daniel Henrique Barboza (2):
  hw/riscv/boot.c: make riscv_find_firmware() static
  hw/riscv/boot.c: introduce riscv_default_firmware_name()

 include/hw/char/riscv_htif.h |  19 +---
 include/hw/riscv/boot.h      |   4 +-
 target/riscv/cpu.h           |   4 -
 hw/char/riscv_htif.c         | 172 +++++++++++++++++++++--------------
 hw/riscv/boot.c              |  76 ++++++++++------
 hw/riscv/sifive_u.c          |  11 +--
 hw/riscv/spike.c             |  59 ++++++++----
 hw/riscv/virt.c              |  10 +-
 target/riscv/machine.c       |   6 +-
 9 files changed, 212 insertions(+), 149 deletions(-)

-- 
2.34.1