From: Oliver Steffen Date: Fri, 30 Jan 2026 05:47:07 +0000 (+0100) Subject: hw/acpi: Make BIOS linker optional X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ef7a0dee80bc94e43e464e2b4bae4e9f14a38f41;p=thirdparty%2Fqemu.git hw/acpi: Make BIOS linker optional 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 Message-ID: <20260130054714.715928-3-osteffen@redhat.com> Signed-off-by: Gerd Hoffmann --- diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c index dad4cfcc7d..ea1c415b21 100644 --- a/hw/acpi/aml-build.c +++ b/hw/acpi/aml-build.c @@ -22,6 +22,7 @@ #include "qemu/osdep.h" #include #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)