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Tsirkin" , Richard Henderson , kvm@vger.kernel.org, Gerd Hoffmann , Oliver Steffen Subject: [PULL 10/17] hw/acpi: Make BIOS linker optional Date: Tue, 3 Feb 2026 13:03:35 +0100 Message-ID: <20260203120343.656961-11-kraxel@redhat.com> In-Reply-To: <20260203120343.656961-1-kraxel@redhat.com> References: <20260203120343.656961-1-kraxel@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1770120329222158500 Content-Type: text/plain; charset="utf-8" From: Oliver Steffen 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 --- hw/acpi/aml-build.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c index dad4cfcc7d80..ea1c415b211b 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 *de= sc) uint32_t table_len =3D desc->array->len - desc->table_offset; uint32_t table_len_le =3D cpu_to_le32(table_len); gchar *len_ptr =3D &desc->array->data[desc->table_offset + 4]; + uint8_t *table; =20 /* 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 *d= esc) */ memcpy(len_ptr, &table_len_le, sizeof table_len_le); =20 - bios_linker_loader_add_checksum(linker, ACPI_BUILD_TABLE_FILE, - desc->table_offset, table_len, desc->table_offset + checksum_offse= t); + if (linker !=3D NULL) { + bios_linker_loader_add_checksum(linker, ACPI_BUILD_TABLE_FILE, + desc->table_offset, table_len, + desc->table_offset + checksum_offs= et); + } else { + table =3D (uint8_t *) &desc->array->data[desc->table_offset]; + table[checksum_offset] =3D acpi_checksum(table, table_len); + } } =20 void *acpi_data_push(GArray *table_data, unsigned size) --=20 2.52.0