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x86: Record the start and end of the tables

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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@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass
2023-07-15 21:39:10 -06:00
committed by Bin Meng
parent 8856d613cb
commit 6a32489782
5 changed files with 40 additions and 1 deletions
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9
drivers/misc/qfw.c
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@@ -65,6 +65,11 @@ static int bios_linker_allocate(struct udevice *dev,
printf("error: allocating resource\n");
return -ENOMEM;
}
if (aligned_addr < gd->arch.table_start_high)
gd->arch.table_start_high = aligned_addr;
if (aligned_addr + size > gd->arch.table_end_high)
gd->arch.table_end_high = aligned_addr + size;
} else if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG) {
aligned_addr = ALIGN(*addr, align);
} else {
@@ -189,6 +194,10 @@ ulong write_acpi_tables(ulong addr)
return addr;
}
/* QFW always puts tables at high addresses */
gd->arch.table_start_high = (ulong)table_loader;
gd->arch.table_end_high = (ulong)table_loader;
qfw_read_entry(dev, be16_to_cpu(file->cfg.select), size, table_loader);
for (i = 0; i < (size / sizeof(*entry)); i++) {