On 2023/10/11 1:04, Richard Henderson wrote:
On 10/9/23 05:42, LIU Zhiwei wrote:
On 2023/10/9 19:02, Philippe Mathieu-Daudé wrote:
When CPUArchState* is available (here CPURISCVState*), we
can use the fast env_archcpu() macro to get ArchCPU* (here
RISCVCPU*). The QOM cast RISCV_CPU() macro will be slower
when building with --enable-qom-cast-debug.
Inspired-by: Richard W.M. Jones <rjo...@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
Reviewed-by: LIU Zhiwei <zhiwei_...@linux.alibaba.com>
By the way, does the community has the plan to support heterogeneous
architecture cpus in one soc?
Yes.
Hi Richard,
It's a good news. Thanks.
If so, maybe we have to do this qom cast somewhere.
No, I don't think so. Or at least not in these places.
Yes. Perhaps, we should remove all RISCV_CPU macros using after the qom
objects realized.
Do you think we should remove the RISCV_CPU using in
riscv_cpu_exec_interrupt? Although it is not so hot. I think there is
no reason to use it there.
Except this, there are many other places in hw/ and target/riscv using
the RISCV_CPU macro.
If we know whether we should remove the RISCV_CPU macro use in these
places, we can do it in another patch.
Thanks,
Zhiwei
r~
