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Tue, 7 Sep 2021 14:48:16 +0000 (UTC) From: Igor Mammedov To: qemu-devel@nongnu.org Subject: [PATCH v3 00/35] acpi: refactor error prone build_header() and packed structures usage in ACPI tables Date: Tue, 7 Sep 2021 10:47:39 -0400 Message-Id: <20210907144814.741785-1-imammedo@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=imammedo@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=imammedo@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.391, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mst@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" v3: 1. s/acpi_init_table()|acpi_table_composed()/acpi_table_begin()|acpi_table_end()/ 2. arm:madt fix incorrect length 3. various comment improvments 4. rewrite IORT conversion patch due to heavy conflicts with bypass iommu code merged recently 5 pick up Eric's Reviewed-By where there wasn't significant change (1) v2: - drop test related patches, they will be sent as a separate series - fix bios_loader pointer initialization ordering when using TPM1.2 - extend commit message of [1/35] and add extra comment about table length patching Highlights: * drop pointer arithmetic in ACPI tables code * use endian agnostic API * simplifies review of tables. /in most cases just line by line comparision with spec/ Series replaces build_header() with acpi_table_begin()/acpi_table_end() API that hides pointer/offset arithmetic from user, to prevent errors caused by it [1]. While doing above, it was necessary to split table header from packed structure that was describing the table, which is counter-productive since it still leaves packed structure drawbacks. So that sort of forced me to rewrite tables that were composed with help of packed structures to preferred build_append_int_noprefix() API. In cases where refactoring to build_append_int_noprefix() was small, it was squashed with acpi_table_begin()/acpi_table_end() patch. Conversion reduced code size quite a bit despite me adding doc comments for every table row. 1) commits bb9feea43179 x86: acpi: use offset instead of pointer when using build_header() 4d027afeb3a9 Virt: ACPI: fix qemu assert due to re-assigned table data address Link to repo with this series and tests to validate it: https://gitlab.com/imammedo/qemu/-/commits/acpi_build_header_refactoring_v3 Previous v2 revision can be found at: https://www.mail-archive.com/qemu-devel@nongnu.org/msg822151.html CC: mst@redhat.com Igor Mammedov (35): acpi: add helper routines to initialize ACPI tables acpi: build_rsdt: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: build_xsdt: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: build_slit: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: build_fadt: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: build_tpm2: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: acpi_build_hest: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: build_mcfg: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: build_hmat: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: nvdimm_build_nfit: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: nvdimm_build_ssdt: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: vmgenid_build_acpi: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: x86: build_dsdt: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: build_hpet: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: build_tpm_tcpa: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: arm/x86: build_srat: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: use build_append_int_noprefix() API to compose SRAT table acpi: build_dmar_q35: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: build_waet: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: build_amd_iommu: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: madt: arm/x86: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: x86: remove dead code acpi: x86: set enabled when composing _MAT entries acpi: x86: madt: use build_append_int_noprefix() API to compose MADT table acpi: arm/virt: madt: use build_append_int_noprefix() API to compose MADT table acpi: build_dsdt_microvm: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: arm: virt: build_dsdt: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: arm: virt: build_iort: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: arm/virt: convert build_iort() to endian agnostic build_append_FOO() API acpi: arm/virt: build_spcr: fix invalid cast acpi: arm/virt: build_spcr: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: arm/virt: build_gtdt: use acpi_table_begin()/acpi_table_end() instead of build_header() acpi: build_facs: use build_append_int_noprefix() API to compose table acpi: remove no longer used build_header() acpi: AcpiGenericAddress no longer used to map/access fields of MMIO, drop packed attribute include/hw/acpi/acpi-defs.h | 528 +----------------------- include/hw/acpi/acpi_dev_interface.h | 3 +- include/hw/acpi/aml-build.h | 38 +- include/hw/i386/pc.h | 6 +- hw/acpi/acpi-x86-stub.c | 3 +- hw/acpi/aml-build.c | 197 +++++---- hw/acpi/cpu.c | 17 +- hw/acpi/ghes.c | 10 +- hw/acpi/hmat.c | 14 +- hw/acpi/nvdimm.c | 64 ++- hw/acpi/pci.c | 18 +- hw/acpi/vmgenid.c | 16 +- hw/arm/virt-acpi-build.c | 577 +++++++++++++++------------ hw/i386/acpi-build.c | 304 +++++++------- hw/i386/acpi-common.c | 158 ++++---- hw/i386/acpi-microvm.c | 13 +- 16 files changed, 798 insertions(+), 1168 deletions(-)