Re: [RFC PATCH v3 1/5] ppc64: Add semihosting support

[Richard Henderson]

On 4/18/22 12:10, Leandro Lupori wrote:
> Add semihosting support for PPC64. This implementation is
> based on the standard for ARM semihosting version 2.0, as
> implemented by QEMU and documented in
>
>      https://github.com/ARM-software/abi-aa/releases
>
> The PPC64 specific differences are the following:
>
> Semihosting Trap Instruction: sc 7
> Operation Number Register: r3
> Parameter Register: r4
> Return Register: r3
> Data block field size: 64 bits
>
> Signed-off-by: Leandro Lupori<leandro.lupori@eldorado.org.br>
> ---
>   configs/devices/ppc64-softmmu/default.mak |  3 +++
>   qemu-options.hx                           | 18 ++++++++-----
>   semihosting/arm-compat-semi.c             | 33 +++++++++++++++++++++++
>   target/ppc/cpu.h                          |  3 ++-
>   target/ppc/excp_helper.c                  |  9 +++++++
>   target/ppc/translate.c                    | 14 ++++++++++
>   6 files changed, 72 insertions(+), 8 deletions(-)

Modulo whatever sc number yall settle on,

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~