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acpi: enable writing ACPI tables on QEMU

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Invoke write_acpi_tables() via EVT_LAST_STAGE_INIT on QEMU except on X86.
X86 calls write_acpi_tables() in write_tables().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Heinrich Schuchardt 2023-12-19 16:04:04 +01:00 committed by Simon Glass
parent b7d029bb8a
commit 638cc36348
1 changed files with 25 additions and 0 deletions
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25
drivers/misc/qfw_acpi.c
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@ -9,9 +9,11 @@
#include <acpi/acpi_table.h>
#include <errno.h>
#include <malloc.h>
#include <mapmem.h>
#include <qfw.h>
#include <tables_csum.h>
#include <stdio.h>
#include <linux/sizes.h>
#include <asm/byteorder.h>
#include <asm/global_data.h>
@ -254,3 +256,26 @@ ulong acpi_get_rsdp_addr(void)
file = qfw_find_file(dev, "etc/acpi/rsdp");
return file->addr;
}
#ifndef CONFIG_X86
static int evt_write_acpi_tables(void)
{
ulong addr, end;
void *ptr;
/* Reserve 64K for ACPI tables, aligned to a 4K boundary */
ptr = memalign(SZ_4K, SZ_64K);
if (!ptr)
return -ENOMEM;
addr = map_to_sysmem(ptr);
/* Generate ACPI tables */
end = write_acpi_tables(addr);
gd->arch.table_start = addr;
gd->arch.table_end = addr;
return 0;
}
EVENT_SPY_SIMPLE(EVT_LAST_STAGE_INIT, evt_write_acpi_tables);
#endif