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Re: [PATCH v5 2/4] xen/ppc: Set up a basic C environment
- To: Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Mon, 24 Jul 2023 13:32:45 +0200
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- Cc: Timothy Pearson <tpearson@xxxxxxxxxxxxxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Mon, 24 Jul 2023 11:33:23 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 21.07.2023 19:02, Shawn Anastasio wrote:
> Update ppc64/head.S to set up an initial boot stack, zero the .bss
> section, and jump to C. The required setup is done using 32-bit
> immediate address loads for now, but they will be changed to
> TOC-relative loads once the position-independent code model is enabled.
>
> Additionally, move the cpu0_boot_stack declaration to setup.c and change
> STACK_ORDER from 2 to 0. For now, ppc64 is using 64k pages and thus the
> larger STACK_ORDER is unnecessary.
>
> Finally, refactor the endian fixup trampoline into its own macro, since it
> will need to be used in multiple places, including every time we make a
> call into firmware.
>
> Signed-off-by: Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>
I don't think I'm qualified to really give an R-b, so
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
will need to do.
Jan
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