[PATCH v5 37/46] x86: Record the start and end of the tables

[Bin Meng]

On Sun, Jul 16, 2023 at 11:40 AM Simon Glass <sjg at chromium.org> wrote:
>
> The ACPI tables are special in that they are passed to EFI as a separate
> piece, independent of other tables.
>
> Also they can be spread over two areas of memory, e.g. with QEMU we end
> up with tables kept in high memory as well.
>
> Add new global_data fields to hold this information and update the bdinfo
> command to show the table areas.
>
> Move the rom_table_end variable into the loop that uses it.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
>
> Changes in v5:
> - Add a comment about QFW putting its tables up high
> - Add a comment that the bloblist is always in high memory
>
> Changes in v3:
> - Adjust the code to handle qemu writing a pointer to tables in memory
>
> Changes in v2:
> - Handle the case where the tables are in the bloblist
>
>  arch/sandbox/include/asm/global_data.h |  4 ++++
>  arch/x86/include/asm/global_data.h     |  4 ++++
>  arch/x86/lib/bdinfo.c                  |  4 ++++
>  arch/x86/lib/tables.c                  | 20 +++++++++++++++++++-
>  drivers/misc/qfw.c                     |  9 +++++++++
>  5 files changed, 40 insertions(+), 1 deletion(-)
>

Reviewed-by: Bin Meng <bmeng.cn at gmail.com>