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hw/acpi: Make BIOS linker optional

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Make the BIOS linker optional in acpi_table_end() and calculate the ACPI
table checksum directly if no linker is provided.

This makes it possible to call for example
acpi_build_madt() from outside the ACPI table builder context.

Signed-off-by: Oliver Steffen <osteffen@redhat.com>
Message-ID: <20260130054714.715928-3-osteffen@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Oliver Steffen
2026-01-30 06:47:07 +01:00
committed by Gerd Hoffmann
parent 8e862b7246
commit ef7a0dee80
1 changed files with 10 additions and 2 deletions
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12
hw/acpi/aml-build.c
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@@ -22,6 +22,7 @@
#include "qemu/osdep.h"
#include <glib/gprintf.h>
#include "hw/acpi/aml-build.h"
#include "hw/acpi/acpi.h"
#include "qemu/bswap.h"
#include "qemu/bitops.h"
#include "system/numa.h"
@@ -1741,6 +1742,7 @@ void acpi_table_end(BIOSLinker *linker, AcpiTable *desc)
uint32_t table_len = desc->array->len - desc->table_offset;
uint32_t table_len_le = cpu_to_le32(table_len);
gchar *len_ptr = &desc->array->data[desc->table_offset + 4];
uint8_t *table;
/* patch "Length" field that has been reserved by acpi_table_begin()
* to the actual length, i.e. accumulated table length from
@@ -1748,8 +1750,14 @@ void acpi_table_end(BIOSLinker *linker, AcpiTable *desc)
*/
memcpy(len_ptr, &table_len_le, sizeof table_len_le);
bios_linker_loader_add_checksum(linker, ACPI_BUILD_TABLE_FILE,
desc->table_offset, table_len, desc->table_offset + checksum_offset);
if (linker != NULL) {
bios_linker_loader_add_checksum(linker, ACPI_BUILD_TABLE_FILE,
desc->table_offset, table_len,
desc->table_offset + checksum_offset);
} else {
table = (uint8_t *) &desc->array->data[desc->table_offset];
table[checksum_offset] = acpi_checksum(table, table_len);
}
}
void *acpi_data_push(GArray *table_data, unsigned size)