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Re: [PATCH 2/2] acpi: Consolidate the handling of OEM ID and OEM Table I
|
From: |
Igor Mammedov |
|
Subject: |
Re: [PATCH 2/2] acpi: Consolidate the handling of OEM ID and OEM Table ID fields |
|
Date: |
Mon, 1 Mar 2021 21:29:15 +0100 |
On Sun, 21 Feb 2021 02:17:37 +0200
Marian Postevca <posteuca@mutex.one> wrote:
> Introduces structure AcpiBuildOem to hold the value of OEM fields and
> uses dedicated macros to initialize/set the values.
> Unnecessary dynamically allocated OEM fields are re-factored to static
> allocation.
looks fine to me.
Though I'm also fine with dynamically allocated fields as it's now,
so I'd leave it up to Michael, who asked for this change.
> Signed-off-by: Marian Postevca <posteuca@mutex.one>
> ---
> hw/acpi/hmat.h | 2 +-
> hw/i386/acpi-common.h | 2 +-
> include/hw/acpi/acpi-build-oem.h | 55 ++++++++++++++++++++++
> include/hw/acpi/aml-build.h | 16 +++----
> include/hw/acpi/ghes.h | 2 +-
> include/hw/acpi/pci.h | 2 +-
> include/hw/acpi/vmgenid.h | 2 +-
> include/hw/arm/virt.h | 4 +-
> include/hw/i386/x86.h | 4 +-
> include/hw/mem/nvdimm.h | 4 +-
> hw/acpi/aml-build.c | 27 ++++++-----
> hw/acpi/ghes.c | 5 +-
> hw/acpi/hmat.c | 4 +-
> hw/acpi/nvdimm.c | 22 +++++----
> hw/acpi/pci.c | 4 +-
> hw/acpi/vmgenid.c | 6 ++-
> hw/arm/virt-acpi-build.c | 40 ++++++----------
> hw/arm/virt.c | 16 +++----
> hw/i386/acpi-build.c | 78 +++++++++++++++-----------------
> hw/i386/acpi-common.c | 4 +-
> hw/i386/acpi-microvm.c | 13 ++----
> hw/i386/x86.c | 19 ++++----
> 22 files changed, 182 insertions(+), 149 deletions(-)
> create mode 100644 include/hw/acpi/acpi-build-oem.h
>
> diff --git a/hw/acpi/hmat.h b/hw/acpi/hmat.h
> index b57f0e7e80..39c42328bd 100644
> --- a/hw/acpi/hmat.h
> +++ b/hw/acpi/hmat.h
> @@ -38,6 +38,6 @@
> #define HMAT_PROXIMITY_INITIATOR_VALID 0x1
>
> void build_hmat(GArray *table_data, BIOSLinker *linker, NumaState
> *numa_state,
> - const char *oem_id, const char *oem_table_id);
> + struct AcpiBuildOem *bld_oem);
>
> #endif
> diff --git a/hw/i386/acpi-common.h b/hw/i386/acpi-common.h
> index b12cd73ea5..27c2e5b6a9 100644
> --- a/hw/i386/acpi-common.h
> +++ b/hw/i386/acpi-common.h
> @@ -10,6 +10,6 @@
>
> void acpi_build_madt(GArray *table_data, BIOSLinker *linker,
> X86MachineState *x86ms, AcpiDeviceIf *adev,
> - const char *oem_id, const char *oem_table_id);
> + struct AcpiBuildOem *bld_oem);
>
> #endif
> diff --git a/include/hw/acpi/acpi-build-oem.h
> b/include/hw/acpi/acpi-build-oem.h
> new file mode 100644
> index 0000000000..5e5edc4c22
> --- /dev/null
> +++ b/include/hw/acpi/acpi-build-oem.h
> @@ -0,0 +1,55 @@
> +#ifndef QEMU_HW_ACPI_BUILD_OEM_H
> +#define QEMU_HW_ACPI_BUILD_OEM_H
> +
> +/*
> + * Utilities for working with ACPI OEM ID and OEM TABLE ID fields
> + *
> + * Copyright (c) 2021 Marian Postevca
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> +
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> +
> + * You should have received a copy of the GNU General Public License along
> + * with this program; if not, see <http://www.gnu.org/licenses/>.
> + */
> +#include "qemu/cutils.h"
> +
> +#define ACPI_BUILD_APPNAME6 "BOCHS "
> +#define ACPI_BUILD_APPNAME8 "BXPC "
> +
> +#define ACPI_BUILD_OEM_ID_SIZE 6
> +#define ACPI_BUILD_OEM_TABLE_ID_SIZE 8
> +
> +struct AcpiBuildOem {
> + char oem_id[ACPI_BUILD_OEM_ID_SIZE + 1];
> + char oem_table_id[ACPI_BUILD_OEM_TABLE_ID_SIZE + 1];
> +};
> +
> +#define ACPI_SET_BUILD_OEM_ID(__bld_oem, __oem_id) do { \
> + pstrcpy(__bld_oem.oem_id, \
> + sizeof __bld_oem.oem_id, __oem_id); \
> +} while (0)
> +
> +#define ACPI_SET_BUILD_OEM_TABLE_ID(__bld_oem, __oem_table_id) do { \
> + pstrcpy(__bld_oem.oem_table_id, \
> + sizeof __bld_oem.oem_table_id, __oem_table_id); \
> +} while (0)
> +
> +#define ACPI_INIT_BUILD_OEM(__bld_oem, __oem_id, __oem_table_id) do { \
> + ACPI_SET_BUILD_OEM_ID(__bld_oem, __oem_id); \
> + ACPI_SET_BUILD_OEM_TABLE_ID(__bld_oem, __oem_table_id); \
> + } while (0)
> +
> +#define ACPI_INIT_DEFAULT_BUILD_OEM(__bld_oem) do { \
> + ACPI_INIT_BUILD_OEM(__bld_oem, \
> + ACPI_BUILD_APPNAME6, ACPI_BUILD_APPNAME8); \
> +} while (0)
> +
> +#endif /* QEMU_HW_ACPI_BUILD_OEM_H */
> diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
> index 380d3e3924..65c26842ad 100644
> --- a/include/hw/acpi/aml-build.h
> +++ b/include/hw/acpi/aml-build.h
> @@ -3,13 +3,11 @@
>
> #include "hw/acpi/acpi-defs.h"
> #include "hw/acpi/bios-linker-loader.h"
> +#include "hw/acpi/acpi-build-oem.h"
>
> /* Reserve RAM space for tables: add another order of magnitude. */
> #define ACPI_BUILD_TABLE_MAX_SIZE 0x200000
>
> -#define ACPI_BUILD_APPNAME6 "BOCHS "
> -#define ACPI_BUILD_APPNAME8 "BXPC "
> -
> #define ACPI_BUILD_TABLE_FILE "etc/acpi/tables"
> #define ACPI_BUILD_RSDP_FILE "etc/acpi/rsdp"
> #define ACPI_BUILD_TPMLOG_FILE "etc/tpm/log"
> @@ -416,7 +414,7 @@ void build_append_int_noprefix(GArray *table, uint64_t
> value, int size);
> void
> build_header(BIOSLinker *linker, GArray *table_data,
> AcpiTableHeader *h, const char *sig, int len, uint8_t rev,
> - const char *oem_id, const char *oem_table_id);
> + struct AcpiBuildOem *bld_oem);
> void *acpi_data_push(GArray *table_data, unsigned size);
> unsigned acpi_data_len(GArray *table);
> void acpi_add_table(GArray *table_offsets, GArray *table_data);
> @@ -426,10 +424,10 @@ void
> build_rsdp(GArray *tbl, BIOSLinker *linker, AcpiRsdpData *rsdp_data);
> void
> build_rsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> - const char *oem_id, const char *oem_table_id);
> + struct AcpiBuildOem *bld_oem);
> void
> build_xsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> - const char *oem_id, const char *oem_table_id);
> + struct AcpiBuildOem *bld_oem);
>
> int
> build_append_named_dword(GArray *array, const char *name_format, ...)
> @@ -460,11 +458,11 @@ void build_srat_memory(AcpiSratMemoryAffinity *numamem,
> uint64_t base,
> uint64_t len, int node, MemoryAffinityFlags flags);
>
> void build_slit(GArray *table_data, BIOSLinker *linker, MachineState *ms,
> - const char *oem_id, const char *oem_table_id);
> + struct AcpiBuildOem *bld_oem);
>
> void build_fadt(GArray *tbl, BIOSLinker *linker, const AcpiFadtData *f,
> - const char *oem_id, const char *oem_table_id);
> + struct AcpiBuildOem *bld_oem);
>
> void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> - const char *oem_id, const char *oem_table_id);
> + struct AcpiBuildOem *bld_oem);
> #endif
> diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h
> index 2ae8bc1ded..9a7b654c98 100644
> --- a/include/hw/acpi/ghes.h
> +++ b/include/hw/acpi/ghes.h
> @@ -68,7 +68,7 @@ typedef struct AcpiGhesState {
>
> void build_ghes_error_table(GArray *hardware_errors, BIOSLinker *linker);
> void acpi_build_hest(GArray *table_data, BIOSLinker *linker,
> - const char *oem_id, const char *oem_table_id);
> + struct AcpiBuildOem *bld_oem);
> void acpi_ghes_add_fw_cfg(AcpiGhesState *vms, FWCfgState *s,
> GArray *hardware_errors);
> int acpi_ghes_record_errors(uint8_t notify, uint64_t error_physical_addr);
> diff --git a/include/hw/acpi/pci.h b/include/hw/acpi/pci.h
> index e514f179d8..1a41c6dc8a 100644
> --- a/include/hw/acpi/pci.h
> +++ b/include/hw/acpi/pci.h
> @@ -34,5 +34,5 @@ typedef struct AcpiMcfgInfo {
> } AcpiMcfgInfo;
>
> void build_mcfg(GArray *table_data, BIOSLinker *linker, AcpiMcfgInfo *info,
> - const char *oem_id, const char *oem_table_id);
> + struct AcpiBuildOem *bld_oem);
> #endif
> diff --git a/include/hw/acpi/vmgenid.h b/include/hw/acpi/vmgenid.h
> index dc8bb3433e..388d6ebd59 100644
> --- a/include/hw/acpi/vmgenid.h
> +++ b/include/hw/acpi/vmgenid.h
> @@ -31,7 +31,7 @@ static inline Object *find_vmgenid_dev(void)
> }
>
> void vmgenid_build_acpi(VmGenIdState *vms, GArray *table_data, GArray *guid,
> - BIOSLinker *linker, const char *oem_id);
> + BIOSLinker *linker, struct AcpiBuildOem *bld_oem);
> void vmgenid_add_fw_cfg(VmGenIdState *vms, FWCfgState *s, GArray *guid);
>
> #endif
> diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
> index ee9a93101e..6af0396294 100644
> --- a/include/hw/arm/virt.h
> +++ b/include/hw/arm/virt.h
> @@ -38,6 +38,7 @@
> #include "sysemu/kvm.h"
> #include "hw/intc/arm_gicv3_common.h"
> #include "qom/object.h"
> +#include "hw/acpi/acpi-build-oem.h"
>
> #define NUM_GICV2M_SPIS 64
> #define NUM_VIRTIO_TRANSPORTS 32
> @@ -165,8 +166,7 @@ struct VirtMachineState {
> DeviceState *acpi_dev;
> Notifier powerdown_notifier;
> PCIBus *bus;
> - char *oem_id;
> - char *oem_table_id;
> + struct AcpiBuildOem bld_oem;
> };
>
> #define VIRT_ECAM_ID(high) (high ? VIRT_HIGH_PCIE_ECAM : VIRT_PCIE_ECAM)
> diff --git a/include/hw/i386/x86.h b/include/hw/i386/x86.h
> index 26c9cc45a4..0d547ac67f 100644
> --- a/include/hw/i386/x86.h
> +++ b/include/hw/i386/x86.h
> @@ -27,6 +27,7 @@
> #include "hw/isa/isa.h"
> #include "hw/i386/ioapic.h"
> #include "qom/object.h"
> +#include "hw/acpi/acpi-build-oem.h"
>
> struct X86MachineClass {
> /*< private >*/
> @@ -67,8 +68,7 @@ struct X86MachineState {
> OnOffAuto smm;
> OnOffAuto acpi;
>
> - char *oem_id;
> - char *oem_table_id;
> + struct AcpiBuildOem bld_oem;
> /*
> * Address space used by IOAPIC device. All IOAPIC interrupts
> * will be translated to MSI messages in the address space.
> diff --git a/include/hw/mem/nvdimm.h b/include/hw/mem/nvdimm.h
> index bcf62f825c..a7ab354cd1 100644
> --- a/include/hw/mem/nvdimm.h
> +++ b/include/hw/mem/nvdimm.h
> @@ -154,8 +154,8 @@ void nvdimm_init_acpi_state(NVDIMMState *state,
> MemoryRegion *io,
> void nvdimm_build_srat(GArray *table_data);
> void nvdimm_build_acpi(GArray *table_offsets, GArray *table_data,
> BIOSLinker *linker, NVDIMMState *state,
> - uint32_t ram_slots, const char *oem_id,
> - const char *oem_table_id);
> + uint32_t ram_slots,
> + struct AcpiBuildOem *bld_oem);
> void nvdimm_plug(NVDIMMState *state);
> void nvdimm_acpi_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev);
> #endif
> diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
> index a2cd7a5830..164d02e0c9 100644
> --- a/hw/acpi/aml-build.c
> +++ b/hw/acpi/aml-build.c
> @@ -1667,7 +1667,7 @@ Aml *aml_object_type(Aml *object)
> void
> build_header(BIOSLinker *linker, GArray *table_data,
> AcpiTableHeader *h, const char *sig, int len, uint8_t rev,
> - const char *oem_id, const char *oem_table_id)
> + struct AcpiBuildOem *bld_oem)
> {
> unsigned tbl_offset = (char *)h - table_data->data;
> unsigned checksum_offset = (char *)&h->checksum - table_data->data;
> @@ -1675,9 +1675,9 @@ build_header(BIOSLinker *linker, GArray *table_data,
> h->length = cpu_to_le32(len);
> h->revision = rev;
>
> - strpadcpy((char *)h->oem_id, sizeof h->oem_id, oem_id, ' ');
> + strpadcpy((char *)h->oem_id, sizeof h->oem_id, bld_oem->oem_id, ' ');
> strpadcpy((char *)h->oem_table_id, sizeof h->oem_table_id,
> - oem_table_id, ' ');
> + bld_oem->oem_table_id, ' ');
>
> h->oem_revision = cpu_to_le32(1);
> memcpy(h->asl_compiler_id, ACPI_BUILD_APPNAME8, 4);
> @@ -1797,7 +1797,7 @@ build_rsdp(GArray *tbl, BIOSLinker *linker,
> AcpiRsdpData *rsdp_data)
> /* Build rsdt table */
> void
> build_rsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> - const char *oem_id, const char *oem_table_id)
> + struct AcpiBuildOem *bld_oem)
> {
> int i;
> unsigned rsdt_entries_offset;
> @@ -1818,13 +1818,13 @@ build_rsdt(GArray *table_data, BIOSLinker *linker,
> GArray *table_offsets,
> ACPI_BUILD_TABLE_FILE, ref_tbl_offset);
> }
> build_header(linker, table_data,
> - (void *)rsdt, "RSDT", rsdt_len, 1, oem_id, oem_table_id);
> + (void *)rsdt, "RSDT", rsdt_len, 1, bld_oem);
> }
>
> /* Build xsdt table */
> void
> build_xsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> - const char *oem_id, const char *oem_table_id)
> + struct AcpiBuildOem *bld_oem)
> {
> int i;
> unsigned xsdt_entries_offset;
> @@ -1845,7 +1845,7 @@ build_xsdt(GArray *table_data, BIOSLinker *linker,
> GArray *table_offsets,
> ACPI_BUILD_TABLE_FILE, ref_tbl_offset);
> }
> build_header(linker, table_data,
> - (void *)xsdt, "XSDT", xsdt_len, 1, oem_id, oem_table_id);
> + (void *)xsdt, "XSDT", xsdt_len, 1, bld_oem);
> }
>
> void build_srat_memory(AcpiSratMemoryAffinity *numamem, uint64_t base,
> @@ -1864,7 +1864,7 @@ void build_srat_memory(AcpiSratMemoryAffinity *numamem,
> uint64_t base,
> * (Revision 2.0 or later)
> */
> void build_slit(GArray *table_data, BIOSLinker *linker, MachineState *ms,
> - const char *oem_id, const char *oem_table_id)
> + struct AcpiBuildOem *bld_oem)
> {
> int slit_start, i, j;
> slit_start = table_data->len;
> @@ -1885,12 +1885,12 @@ void build_slit(GArray *table_data, BIOSLinker
> *linker, MachineState *ms,
> build_header(linker, table_data,
> (void *)(table_data->data + slit_start),
> "SLIT",
> - table_data->len - slit_start, 1, oem_id, oem_table_id);
> + table_data->len - slit_start, 1, bld_oem);
> }
>
> /* build rev1/rev3/rev5.1 FADT */
> void build_fadt(GArray *tbl, BIOSLinker *linker, const AcpiFadtData *f,
> - const char *oem_id, const char *oem_table_id)
> + struct AcpiBuildOem *bld_oem)
> {
> int off;
> int fadt_start = tbl->len;
> @@ -2009,7 +2009,7 @@ void build_fadt(GArray *tbl, BIOSLinker *linker, const
> AcpiFadtData *f,
>
> build_hdr:
> build_header(linker, tbl, (void *)(tbl->data + fadt_start),
> - "FACP", tbl->len - fadt_start, f->rev, oem_id,
> oem_table_id);
> + "FACP", tbl->len - fadt_start, f->rev, bld_oem);
> }
>
> /*
> @@ -2018,7 +2018,7 @@ build_hdr:
> * of TCG ACPI Specification, Family “1.2” and “2.0”, Version 1.2, Rev 8
> */
> void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> - const char *oem_id, const char *oem_table_id)
> + struct AcpiBuildOem *bld_oem)
> {
> uint8_t start_method_params[12] = {};
> unsigned log_addr_offset, tpm2_start;
> @@ -2067,8 +2067,7 @@ void build_tpm2(GArray *table_data, BIOSLinker *linker,
> GArray *tcpalog,
> log_addr_offset, 8,
> ACPI_BUILD_TPMLOG_FILE, 0);
> build_header(linker, table_data,
> - tpm2_ptr, "TPM2", table_data->len - tpm2_start, 4, oem_id,
> - oem_table_id);
> + tpm2_ptr, "TPM2", table_data->len - tpm2_start, 4, bld_oem);
> }
>
> Aml *build_crs(PCIHostState *host, CrsRangeSet *range_set, uint32_t
> io_offset,
> diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
> index a4dac6bf15..963d602b26 100644
> --- a/hw/acpi/ghes.c
> +++ b/hw/acpi/ghes.c
> @@ -21,6 +21,7 @@
>
> #include "qemu/osdep.h"
> #include "qemu/units.h"
> +#include "hw/acpi/acpi-build-oem.h"
> #include "hw/acpi/ghes.h"
> #include "hw/acpi/aml-build.h"
> #include "qemu/error-report.h"
> @@ -360,7 +361,7 @@ static void build_ghes_v2(GArray *table_data, int
> source_id, BIOSLinker *linker)
>
> /* Build Hardware Error Source Table */
> void acpi_build_hest(GArray *table_data, BIOSLinker *linker,
> - const char *oem_id, const char *oem_table_id)
> + struct AcpiBuildOem *bld_oem)
> {
> uint64_t hest_start = table_data->len;
>
> @@ -373,7 +374,7 @@ void acpi_build_hest(GArray *table_data, BIOSLinker
> *linker,
> build_ghes_v2(table_data, ACPI_HEST_SRC_ID_SEA, linker);
>
> build_header(linker, table_data, (void *)(table_data->data + hest_start),
> - "HEST", table_data->len - hest_start, 1, oem_id,
> oem_table_id);
> + "HEST", table_data->len - hest_start, 1, bld_oem);
> }
>
> void acpi_ghes_add_fw_cfg(AcpiGhesState *ags, FWCfgState *s,
> diff --git a/hw/acpi/hmat.c b/hw/acpi/hmat.c
> index edb3fd91b2..d8f594100f 100644
> --- a/hw/acpi/hmat.c
> +++ b/hw/acpi/hmat.c
> @@ -254,7 +254,7 @@ static void hmat_build_table_structs(GArray *table_data,
> NumaState *numa_state)
> }
>
> void build_hmat(GArray *table_data, BIOSLinker *linker, NumaState
> *numa_state,
> - const char *oem_id, const char *oem_table_id)
> + struct AcpiBuildOem *bld_oem)
> {
> int hmat_start = table_data->len;
>
> @@ -265,5 +265,5 @@ void build_hmat(GArray *table_data, BIOSLinker *linker,
> NumaState *numa_state,
>
> build_header(linker, table_data,
> (void *)(table_data->data + hmat_start),
> - "HMAT", table_data->len - hmat_start, 2, oem_id,
> oem_table_id);
> + "HMAT", table_data->len - hmat_start, 2, bld_oem);
> }
> diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c
> index e3d5fe1939..54b29fc424 100644
> --- a/hw/acpi/nvdimm.c
> +++ b/hw/acpi/nvdimm.c
> @@ -403,7 +403,7 @@ void nvdimm_plug(NVDIMMState *state)
>
> static void nvdimm_build_nfit(NVDIMMState *state, GArray *table_offsets,
> GArray *table_data, BIOSLinker *linker,
> - const char *oem_id, const char *oem_table_id)
> + struct AcpiBuildOem *bld_oem)
> {
> NvdimmFitBuffer *fit_buf = &state->fit_buf;
> unsigned int header;
> @@ -418,8 +418,7 @@ static void nvdimm_build_nfit(NVDIMMState *state, GArray
> *table_offsets,
>
> build_header(linker, table_data,
> (void *)(table_data->data + header), "NFIT",
> - sizeof(NvdimmNfitHeader) + fit_buf->fit->len, 1, oem_id,
> - oem_table_id);
> + sizeof(NvdimmNfitHeader) + fit_buf->fit->len, 1, bld_oem);
> }
>
> #define NVDIMM_DSM_MEMORY_SIZE 4096
> @@ -1280,9 +1279,11 @@ static void nvdimm_build_nvdimm_devices(Aml *root_dev,
> uint32_t ram_slots)
> static void nvdimm_build_ssdt(GArray *table_offsets, GArray *table_data,
> BIOSLinker *linker,
> NVDIMMState *nvdimm_state,
> - uint32_t ram_slots, const char *oem_id)
> + uint32_t ram_slots,
> + struct AcpiBuildOem *bld_oem)
> {
> Aml *ssdt, *sb_scope, *dev;
> + struct AcpiBuildOem tmp_bld_oem;
> int mem_addr_offset, nvdimm_ssdt;
>
> acpi_add_table(table_offsets, table_data);
> @@ -1331,9 +1332,11 @@ static void nvdimm_build_ssdt(GArray *table_offsets,
> GArray *table_data,
> bios_linker_loader_add_pointer(linker,
> ACPI_BUILD_TABLE_FILE, mem_addr_offset, sizeof(uint32_t),
> NVDIMM_DSM_MEM_FILE, 0);
> +
> + ACPI_INIT_BUILD_OEM(tmp_bld_oem, bld_oem->oem_id, "NVDIMM");
> build_header(linker, table_data,
> - (void *)(table_data->data + nvdimm_ssdt),
> - "SSDT", table_data->len - nvdimm_ssdt, 1, oem_id, "NVDIMM");
> + (void *)(table_data->data + nvdimm_ssdt),
> + "SSDT", table_data->len - nvdimm_ssdt, 1, &tmp_bld_oem);
> free_aml_allocator();
> }
>
> @@ -1361,8 +1364,7 @@ void nvdimm_build_srat(GArray *table_data)
>
> void nvdimm_build_acpi(GArray *table_offsets, GArray *table_data,
> BIOSLinker *linker, NVDIMMState *state,
> - uint32_t ram_slots, const char *oem_id,
> - const char *oem_table_id)
> + uint32_t ram_slots, struct AcpiBuildOem *bld_oem)
> {
> GSList *device_list;
>
> @@ -1372,7 +1374,7 @@ void nvdimm_build_acpi(GArray *table_offsets, GArray
> *table_data,
> }
>
> nvdimm_build_ssdt(table_offsets, table_data, linker, state,
> - ram_slots, oem_id);
> + ram_slots, bld_oem);
>
> device_list = nvdimm_get_device_list();
> /* no NVDIMM device is plugged. */
> @@ -1381,6 +1383,6 @@ void nvdimm_build_acpi(GArray *table_offsets, GArray
> *table_data,
> }
>
> nvdimm_build_nfit(state, table_offsets, table_data, linker,
> - oem_id, oem_table_id);
> + bld_oem);
> g_slist_free(device_list);
> }
> diff --git a/hw/acpi/pci.c b/hw/acpi/pci.c
> index ec455c3b25..0e7173a24d 100644
> --- a/hw/acpi/pci.c
> +++ b/hw/acpi/pci.c
> @@ -29,7 +29,7 @@
> #include "hw/pci/pcie_host.h"
>
> void build_mcfg(GArray *table_data, BIOSLinker *linker, AcpiMcfgInfo *info,
> - const char *oem_id, const char *oem_table_id)
> + struct AcpiBuildOem *bld_oem)
> {
> int mcfg_start = table_data->len;
>
> @@ -57,6 +57,6 @@ void build_mcfg(GArray *table_data, BIOSLinker *linker,
> AcpiMcfgInfo *info,
> build_append_int_noprefix(table_data, 0, 4);
>
> build_header(linker, table_data, (void *)(table_data->data + mcfg_start),
> - "MCFG", table_data->len - mcfg_start, 1, oem_id,
> oem_table_id);
> + "MCFG", table_data->len - mcfg_start, 1, bld_oem);
> }
>
> diff --git a/hw/acpi/vmgenid.c b/hw/acpi/vmgenid.c
> index 4f41a13ea0..bf3253d168 100644
> --- a/hw/acpi/vmgenid.c
> +++ b/hw/acpi/vmgenid.c
> @@ -24,11 +24,12 @@
> #include "sysemu/reset.h"
>
> void vmgenid_build_acpi(VmGenIdState *vms, GArray *table_data, GArray *guid,
> - BIOSLinker *linker, const char *oem_id)
> + BIOSLinker *linker, struct AcpiBuildOem *bld_oem)
> {
> Aml *ssdt, *dev, *scope, *method, *addr, *if_ctx;
> uint32_t vgia_offset;
> QemuUUID guid_le;
> + struct AcpiBuildOem tmp_bld_oem;
>
> /* Fill in the GUID values. These need to be converted to little-endian
> * first, since that's what the guest expects
> @@ -116,9 +117,10 @@ void vmgenid_build_acpi(VmGenIdState *vms, GArray
> *table_data, GArray *guid,
> ACPI_BUILD_TABLE_FILE, vgia_offset, sizeof(uint32_t),
> VMGENID_GUID_FW_CFG_FILE, 0);
>
> + ACPI_INIT_BUILD_OEM(tmp_bld_oem, bld_oem->oem_id, "VMGENID");
> build_header(linker, table_data,
> (void *)(table_data->data + table_data->len - ssdt->buf->len),
> - "SSDT", ssdt->buf->len, 1, oem_id, "VMGENID");
> + "SSDT", ssdt->buf->len, 1, &tmp_bld_oem);
> free_aml_allocator();
> }
>
> diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
> index f9c9df916c..55d2f427c2 100644
> --- a/hw/arm/virt-acpi-build.c
> +++ b/hw/arm/virt-acpi-build.c
> @@ -341,8 +341,7 @@ build_iort(GArray *table_data, BIOSLinker *linker,
> VirtMachineState *vms)
> iort->length = cpu_to_le32(iort_length);
>
> build_header(linker, table_data, (void *)(table_data->data + iort_start),
> - "IORT", table_data->len - iort_start, 0, vms->oem_id,
> - vms->oem_table_id);
> + "IORT", table_data->len - iort_start, 0, &vms->bld_oem);
> }
>
> static void
> @@ -376,8 +375,7 @@ build_spcr(GArray *table_data, BIOSLinker *linker,
> VirtMachineState *vms)
> spcr->pci_vendor_id = 0xffff; /* PCI Vendor ID: not a PCI device */
>
> build_header(linker, table_data, (void *)(table_data->data + spcr_start),
> - "SPCR", table_data->len - spcr_start, 2, vms->oem_id,
> - vms->oem_table_id);
> + "SPCR", table_data->len - spcr_start, 2, &vms->bld_oem);
> }
>
> static void
> @@ -429,8 +427,7 @@ build_srat(GArray *table_data, BIOSLinker *linker,
> VirtMachineState *vms)
> }
>
> build_header(linker, table_data, (void *)(table_data->data + srat_start),
> - "SRAT", table_data->len - srat_start, 3, vms->oem_id,
> - vms->oem_table_id);
> + "SRAT", table_data->len - srat_start, 3, &vms->bld_oem);
> }
>
> /* GTDT */
> @@ -465,8 +462,7 @@ build_gtdt(GArray *table_data, BIOSLinker *linker,
> VirtMachineState *vms)
>
> build_header(linker, table_data,
> (void *)(table_data->data + gtdt_start), "GTDT",
> - table_data->len - gtdt_start, 2, vms->oem_id,
> - vms->oem_table_id);
> + table_data->len - gtdt_start, 2, &vms->bld_oem);
> }
>
> /* MADT */
> @@ -555,8 +551,7 @@ build_madt(GArray *table_data, BIOSLinker *linker,
> VirtMachineState *vms)
>
> build_header(linker, table_data,
> (void *)(table_data->data + madt_start), "APIC",
> - table_data->len - madt_start, 3, vms->oem_id,
> - vms->oem_table_id);
> + table_data->len - madt_start, 3, &vms->bld_oem);
> }
>
> /* FADT */
> @@ -586,7 +581,7 @@ static void build_fadt_rev5(GArray *table_data,
> BIOSLinker *linker,
> g_assert_not_reached();
> }
>
> - build_fadt(table_data, linker, &fadt, vms->oem_id, vms->oem_table_id);
> + build_fadt(table_data, linker, &fadt, &vms->bld_oem);
> }
>
> /* DSDT */
> @@ -650,8 +645,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
> VirtMachineState *vms)
> g_array_append_vals(table_data, dsdt->buf->data, dsdt->buf->len);
> build_header(linker, table_data,
> (void *)(table_data->data + table_data->len - dsdt->buf->len),
> - "DSDT", dsdt->buf->len, 2, vms->oem_id,
> - vms->oem_table_id);
> + "DSDT", dsdt->buf->len, 2, &vms->bld_oem);
> free_aml_allocator();
> }
>
> @@ -710,8 +704,7 @@ void virt_acpi_build(VirtMachineState *vms,
> AcpiBuildTables *tables)
> .base = vms->memmap[VIRT_ECAM_ID(vms->highmem_ecam)].base,
> .size = vms->memmap[VIRT_ECAM_ID(vms->highmem_ecam)].size,
> };
> - build_mcfg(tables_blob, tables->linker, &mcfg, vms->oem_id,
> - vms->oem_table_id);
> + build_mcfg(tables_blob, tables->linker, &mcfg, &vms->bld_oem);
> }
>
> acpi_add_table(table_offsets, tables_blob);
> @@ -720,8 +713,7 @@ void virt_acpi_build(VirtMachineState *vms,
> AcpiBuildTables *tables)
> if (vms->ras) {
> build_ghes_error_table(tables->hardware_errors, tables->linker);
> acpi_add_table(table_offsets, tables_blob);
> - acpi_build_hest(tables_blob, tables->linker, vms->oem_id,
> - vms->oem_table_id);
> + acpi_build_hest(tables_blob, tables->linker, &vms->bld_oem);
> }
>
> if (ms->numa_state->num_nodes > 0) {
> @@ -729,15 +721,13 @@ void virt_acpi_build(VirtMachineState *vms,
> AcpiBuildTables *tables)
> build_srat(tables_blob, tables->linker, vms);
> if (ms->numa_state->have_numa_distance) {
> acpi_add_table(table_offsets, tables_blob);
> - build_slit(tables_blob, tables->linker, ms, vms->oem_id,
> - vms->oem_table_id);
> + build_slit(tables_blob, tables->linker, ms, &vms->bld_oem);
> }
> }
>
> if (ms->nvdimms_state->is_enabled) {
> nvdimm_build_acpi(table_offsets, tables_blob, tables->linker,
> - ms->nvdimms_state, ms->ram_slots, vms->oem_id,
> - vms->oem_table_id);
> + ms->nvdimms_state, ms->ram_slots, &vms->bld_oem);
> }
>
> if (its_class_name() && !vmc->no_its) {
> @@ -747,20 +737,18 @@ void virt_acpi_build(VirtMachineState *vms,
> AcpiBuildTables *tables)
>
> if (tpm_get_version(tpm_find()) == TPM_VERSION_2_0) {
> acpi_add_table(table_offsets, tables_blob);
> - build_tpm2(tables_blob, tables->linker, tables->tcpalog, vms->oem_id,
> - vms->oem_table_id);
> + build_tpm2(tables_blob, tables->linker, tables->tcpalog,
> &vms->bld_oem);
> }
>
> /* XSDT is pointed to by RSDP */
> xsdt = tables_blob->len;
> - build_xsdt(tables_blob, tables->linker, table_offsets, vms->oem_id,
> - vms->oem_table_id);
> + build_xsdt(tables_blob, tables->linker, table_offsets, &vms->bld_oem);
>
> /* RSDP is in FSEG memory, so allocate it separately */
> {
> AcpiRsdpData rsdp_data = {
> .revision = 2,
> - .oem_id = vms->oem_id,
> + .oem_id = vms->bld_oem.oem_id,
> .xsdt_tbl_offset = &xsdt,
> .rsdt_tbl_offset = NULL,
> };
> diff --git a/hw/arm/virt.c b/hw/arm/virt.c
> index 371147f3ae..0a2d121efe 100644
> --- a/hw/arm/virt.c
> +++ b/hw/arm/virt.c
> @@ -2159,7 +2159,7 @@ static char *virt_get_oem_id(Object *obj, Error **errp)
> {
> VirtMachineState *vms = VIRT_MACHINE(obj);
>
> - return g_strdup(vms->oem_id);
> + return g_strdup(vms->bld_oem.oem_id);
> }
>
> static void virt_set_oem_id(Object *obj, const char *value, Error **errp)
> @@ -2167,20 +2167,19 @@ static void virt_set_oem_id(Object *obj, const char
> *value, Error **errp)
> VirtMachineState *vms = VIRT_MACHINE(obj);
> size_t len = strlen(value);
>
> - if (len > 6) {
> + if (len > ACPI_BUILD_OEM_ID_SIZE) {
> error_setg(errp,
> "User specified oem-id value is bigger than 6 bytes in
> size");
> return;
> }
> -
> - strncpy(vms->oem_id, value, 6);
> + ACPI_SET_BUILD_OEM_ID(vms->bld_oem, value);
> }
>
> static char *virt_get_oem_table_id(Object *obj, Error **errp)
> {
> VirtMachineState *vms = VIRT_MACHINE(obj);
>
> - return g_strdup(vms->oem_table_id);
> + return g_strdup(vms->bld_oem.oem_table_id);
> }
>
> static void virt_set_oem_table_id(Object *obj, const char *value,
> @@ -2189,12 +2188,12 @@ static void virt_set_oem_table_id(Object *obj, const
> char *value,
> VirtMachineState *vms = VIRT_MACHINE(obj);
> size_t len = strlen(value);
>
> - if (len > 8) {
> + if (len > ACPI_BUILD_OEM_TABLE_ID_SIZE) {
> error_setg(errp,
> "User specified oem-table-id value is bigger than 8 bytes
> in size");
> return;
> }
> - strncpy(vms->oem_table_id, value, 8);
> + ACPI_SET_BUILD_OEM_TABLE_ID(vms->bld_oem, value);
> }
>
>
> @@ -2706,8 +2705,7 @@ static void virt_instance_init(Object *obj)
>
> virt_flash_create(vms);
>
> - vms->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6);
> - vms->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8);
> + ACPI_INIT_DEFAULT_BUILD_OEM(vms->bld_oem);
> }
>
> static const TypeInfo virt_machine_info = {
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index fa6a6f20f1..2d904e4f58 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -24,6 +24,7 @@
> #include "qapi/error.h"
> #include "qapi/qmp/qnum.h"
> #include "acpi-build.h"
> +#include "hw/acpi/acpi-build-oem.h"
> #include "acpi-common.h"
> #include "qemu/bitmap.h"
> #include "qemu/error-report.h"
> @@ -1637,13 +1638,12 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
> g_array_append_vals(table_data, dsdt->buf->data, dsdt->buf->len);
> build_header(linker, table_data,
> (void *)(table_data->data + table_data->len - dsdt->buf->len),
> - "DSDT", dsdt->buf->len, 1, x86ms->oem_id,
> x86ms->oem_table_id);
> + "DSDT", dsdt->buf->len, 1, &x86ms->bld_oem);
> free_aml_allocator();
> }
>
> static void
> -build_hpet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
> - const char *oem_table_id)
> +build_hpet(GArray *table_data, BIOSLinker *linker, struct AcpiBuildOem
> *bld_oem)
> {
> Acpi20Hpet *hpet;
>
> @@ -1654,12 +1654,12 @@ build_hpet(GArray *table_data, BIOSLinker *linker,
> const char *oem_id,
> hpet->timer_block_id = cpu_to_le32(0x8086a201);
> hpet->addr.address = cpu_to_le64(HPET_BASE);
> build_header(linker, table_data,
> - (void *)hpet, "HPET", sizeof(*hpet), 1, oem_id,
> oem_table_id);
> + (void *)hpet, "HPET", sizeof(*hpet), 1, bld_oem);
> }
>
> static void
> build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> - const char *oem_id, const char *oem_table_id)
> + struct AcpiBuildOem *bld_oem)
> {
> Acpi20Tcpa *tcpa = acpi_data_push(table_data, sizeof *tcpa);
> unsigned log_addr_size = sizeof(tcpa->log_area_start_address);
> @@ -1679,7 +1679,7 @@ build_tpm_tcpa(GArray *table_data, BIOSLinker *linker,
> GArray *tcpalog,
> ACPI_BUILD_TPMLOG_FILE, 0);
>
> build_header(linker, table_data,
> - (void *)tcpa, "TCPA", sizeof(*tcpa), 2, oem_id,
> oem_table_id);
> + (void *)tcpa, "TCPA", sizeof(*tcpa), 2, bld_oem);
> }
>
> #define HOLE_640K_START (640 * KiB)
> @@ -1814,8 +1814,7 @@ build_srat(GArray *table_data, BIOSLinker *linker,
> MachineState *machine)
> build_header(linker, table_data,
> (void *)(table_data->data + srat_start),
> "SRAT",
> - table_data->len - srat_start, 1, x86ms->oem_id,
> - x86ms->oem_table_id);
> + table_data->len - srat_start, 1, &x86ms->bld_oem);
> }
>
> /*
> @@ -1823,8 +1822,8 @@ build_srat(GArray *table_data, BIOSLinker *linker,
> MachineState *machine)
> * (version Oct. 2014 or later)
> */
> static void
> -build_dmar_q35(GArray *table_data, BIOSLinker *linker, const char *oem_id,
> - const char *oem_table_id)
> +build_dmar_q35(GArray *table_data, BIOSLinker *linker,
> + struct AcpiBuildOem *bld_oem)
> {
> int dmar_start = table_data->len;
>
> @@ -1874,7 +1873,7 @@ build_dmar_q35(GArray *table_data, BIOSLinker *linker,
> const char *oem_id,
> }
>
> build_header(linker, table_data, (void *)(table_data->data + dmar_start),
> - "DMAR", table_data->len - dmar_start, 1, oem_id,
> oem_table_id);
> + "DMAR", table_data->len - dmar_start, 1, bld_oem);
> }
>
> /*
> @@ -1885,8 +1884,7 @@ build_dmar_q35(GArray *table_data, BIOSLinker *linker,
> const char *oem_id,
> * Helpful to speedup Windows guests and ignored by others.
> */
> static void
> -build_waet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
> - const char *oem_table_id)
> +build_waet(GArray *table_data, BIOSLinker *linker, struct AcpiBuildOem
> *bld_oem)
> {
> int waet_start = table_data->len;
>
> @@ -1902,7 +1900,7 @@ build_waet(GArray *table_data, BIOSLinker *linker,
> const char *oem_id,
> build_append_int_noprefix(table_data, 1 << 1 /* ACPI PM timer good */,
> 4);
>
> build_header(linker, table_data, (void *)(table_data->data + waet_start),
> - "WAET", table_data->len - waet_start, 1, oem_id,
> oem_table_id);
> + "WAET", table_data->len - waet_start, 1, bld_oem);
> }
>
> /*
> @@ -2004,8 +2002,8 @@ ivrs_host_bridges(Object *obj, void *opaque)
> }
>
> static void
> -build_amd_iommu(GArray *table_data, BIOSLinker *linker, const char *oem_id,
> - const char *oem_table_id)
> +build_amd_iommu(GArray *table_data, BIOSLinker *linker,
> + struct AcpiBuildOem *bld_oem)
> {
> int ivhd_table_len = 24;
> int iommu_start = table_data->len;
> @@ -2100,8 +2098,7 @@ build_amd_iommu(GArray *table_data, BIOSLinker *linker,
> const char *oem_id,
> }
>
> build_header(linker, table_data, (void *)(table_data->data +
> iommu_start),
> - "IVRS", table_data->len - iommu_start, 1, oem_id,
> - oem_table_id);
> + "IVRS", table_data->len - iommu_start, 1, bld_oem);
> }
>
> typedef
> @@ -2157,6 +2154,8 @@ void acpi_build(AcpiBuildTables *tables, MachineState
> *machine)
> GArray *tables_blob = tables->table_data;
> AcpiSlicOem slic_oem = { .id = NULL, .table_id = NULL };
> Object *vmgenid_dev;
> + struct AcpiBuildOem slic_bld_oem;
> + struct AcpiBuildOem *bld_oem;
> char *oem_id;
> char *oem_table_id;
>
> @@ -2168,15 +2167,18 @@ void acpi_build(AcpiBuildTables *tables, MachineState
> *machine)
> if (slic_oem.id) {
> oem_id = slic_oem.id;
> } else {
> - oem_id = x86ms->oem_id;
> + oem_id = x86ms->bld_oem.oem_id;
> }
>
> if (slic_oem.table_id) {
> oem_table_id = slic_oem.table_id;
> } else {
> - oem_table_id = x86ms->oem_table_id;
> + oem_table_id = x86ms->bld_oem.oem_table_id;
> }
>
> + ACPI_INIT_BUILD_OEM(slic_bld_oem, oem_id, oem_table_id);
> + bld_oem = &x86ms->bld_oem;
> +
> table_offsets = g_array_new(false, true /* clear */,
> sizeof(uint32_t));
> ACPI_BUILD_DPRINTF("init ACPI tables\n");
> @@ -2210,35 +2212,33 @@ void acpi_build(AcpiBuildTables *tables, MachineState
> *machine)
> pm.fadt.facs_tbl_offset = &facs;
> pm.fadt.dsdt_tbl_offset = &dsdt;
> pm.fadt.xdsdt_tbl_offset = &dsdt;
> - build_fadt(tables_blob, tables->linker, &pm.fadt, oem_id, oem_table_id);
> + build_fadt(tables_blob, tables->linker, &pm.fadt, &slic_bld_oem);
> aml_len += tables_blob->len - fadt;
>
> acpi_add_table(table_offsets, tables_blob);
> acpi_build_madt(tables_blob, tables->linker, x86ms,
> - ACPI_DEVICE_IF(x86ms->acpi_dev), x86ms->oem_id,
> - x86ms->oem_table_id);
> + ACPI_DEVICE_IF(x86ms->acpi_dev), bld_oem);
>
> vmgenid_dev = find_vmgenid_dev();
> if (vmgenid_dev) {
> acpi_add_table(table_offsets, tables_blob);
> vmgenid_build_acpi(VMGENID(vmgenid_dev), tables_blob,
> - tables->vmgenid, tables->linker, x86ms->oem_id);
> + tables->vmgenid, tables->linker, bld_oem);
> }
>
> if (misc.has_hpet) {
> acpi_add_table(table_offsets, tables_blob);
> - build_hpet(tables_blob, tables->linker, x86ms->oem_id,
> - x86ms->oem_table_id);
> + build_hpet(tables_blob, tables->linker, bld_oem);
> }
> if (misc.tpm_version != TPM_VERSION_UNSPEC) {
> if (misc.tpm_version == TPM_VERSION_1_2) {
> acpi_add_table(table_offsets, tables_blob);
> build_tpm_tcpa(tables_blob, tables->linker, tables->tcpalog,
> - x86ms->oem_id, x86ms->oem_table_id);
> + bld_oem);
> } else { /* TPM_VERSION_2_0 */
> acpi_add_table(table_offsets, tables_blob);
> build_tpm2(tables_blob, tables->linker, tables->tcpalog,
> - x86ms->oem_id, x86ms->oem_table_id);
> + bld_oem);
> }
> }
> if (pcms->numa_nodes) {
> @@ -2246,40 +2246,36 @@ void acpi_build(AcpiBuildTables *tables, MachineState
> *machine)
> build_srat(tables_blob, tables->linker, machine);
> if (machine->numa_state->have_numa_distance) {
> acpi_add_table(table_offsets, tables_blob);
> - build_slit(tables_blob, tables->linker, machine, x86ms->oem_id,
> - x86ms->oem_table_id);
> + build_slit(tables_blob, tables->linker, machine, bld_oem);
> }
> if (machine->numa_state->hmat_enabled) {
> acpi_add_table(table_offsets, tables_blob);
> build_hmat(tables_blob, tables->linker, machine->numa_state,
> - x86ms->oem_id, x86ms->oem_table_id);
> + bld_oem);
> }
> }
> if (acpi_get_mcfg(&mcfg)) {
> acpi_add_table(table_offsets, tables_blob);
> - build_mcfg(tables_blob, tables->linker, &mcfg, x86ms->oem_id,
> - x86ms->oem_table_id);
> + build_mcfg(tables_blob, tables->linker, &mcfg, bld_oem);
> }
> if (x86_iommu_get_default()) {
> IommuType IOMMUType = x86_iommu_get_type();
> if (IOMMUType == TYPE_AMD) {
> acpi_add_table(table_offsets, tables_blob);
> - build_amd_iommu(tables_blob, tables->linker, x86ms->oem_id,
> - x86ms->oem_table_id);
> + build_amd_iommu(tables_blob, tables->linker, bld_oem);
> } else if (IOMMUType == TYPE_INTEL) {
> acpi_add_table(table_offsets, tables_blob);
> - build_dmar_q35(tables_blob, tables->linker, x86ms->oem_id,
> - x86ms->oem_table_id);
> + build_dmar_q35(tables_blob, tables->linker, bld_oem);
> }
> }
> if (machine->nvdimms_state->is_enabled) {
> nvdimm_build_acpi(table_offsets, tables_blob, tables->linker,
> machine->nvdimms_state, machine->ram_slots,
> - x86ms->oem_id, x86ms->oem_table_id);
> + bld_oem);
> }
>
> acpi_add_table(table_offsets, tables_blob);
> - build_waet(tables_blob, tables->linker, x86ms->oem_id,
> x86ms->oem_table_id);
> + build_waet(tables_blob, tables->linker, bld_oem);
>
> /* Add tables supplied by user (if any) */
> for (u = acpi_table_first(); u; u = acpi_table_next(u)) {
> @@ -2292,13 +2288,13 @@ void acpi_build(AcpiBuildTables *tables, MachineState
> *machine)
> /* RSDT is pointed to by RSDP */
> rsdt = tables_blob->len;
> build_rsdt(tables_blob, tables->linker, table_offsets,
> - oem_id, oem_table_id);
> + &slic_bld_oem);
>
> /* RSDP is in FSEG memory, so allocate it separately */
> {
> AcpiRsdpData rsdp_data = {
> .revision = 0,
> - .oem_id = x86ms->oem_id,
> + .oem_id = bld_oem->oem_id,
> .xsdt_tbl_offset = NULL,
> .rsdt_tbl_offset = &rsdt,
> };
> diff --git a/hw/i386/acpi-common.c b/hw/i386/acpi-common.c
> index 1f5947fcf9..c3a5e6f0b5 100644
> --- a/hw/i386/acpi-common.c
> +++ b/hw/i386/acpi-common.c
> @@ -73,7 +73,7 @@ void pc_madt_cpu_entry(AcpiDeviceIf *adev, int uid,
>
> void acpi_build_madt(GArray *table_data, BIOSLinker *linker,
> X86MachineState *x86ms, AcpiDeviceIf *adev,
> - const char *oem_id, const char *oem_table_id)
> + struct AcpiBuildOem *bld_oem)
> {
> MachineClass *mc = MACHINE_GET_CLASS(x86ms);
> const CPUArchIdList *apic_ids =
> mc->possible_cpu_arch_ids(MACHINE(x86ms));
> @@ -158,6 +158,6 @@ void acpi_build_madt(GArray *table_data, BIOSLinker
> *linker,
>
> build_header(linker, table_data,
> (void *)(table_data->data + madt_start), "APIC",
> - table_data->len - madt_start, 1, oem_id, oem_table_id);
> + table_data->len - madt_start, 1, bld_oem);
> }
>
> diff --git a/hw/i386/acpi-microvm.c b/hw/i386/acpi-microvm.c
> index d4c3511e00..a7d2d1e925 100644
> --- a/hw/i386/acpi-microvm.c
> +++ b/hw/i386/acpi-microvm.c
> @@ -149,7 +149,7 @@ build_dsdt_microvm(GArray *table_data, BIOSLinker *linker,
> g_array_append_vals(table_data, dsdt->buf->data, dsdt->buf->len);
> build_header(linker, table_data,
> (void *)(table_data->data + table_data->len - dsdt->buf->len),
> - "DSDT", dsdt->buf->len, 2, x86ms->oem_id,
> x86ms->oem_table_id);
> + "DSDT", dsdt->buf->len, 2, &x86ms->bld_oem);
> free_aml_allocator();
> }
>
> @@ -201,24 +201,21 @@ static void acpi_build_microvm(AcpiBuildTables *tables,
> pmfadt.dsdt_tbl_offset = &dsdt;
> pmfadt.xdsdt_tbl_offset = &dsdt;
> acpi_add_table(table_offsets, tables_blob);
> - build_fadt(tables_blob, tables->linker, &pmfadt, x86ms->oem_id,
> - x86ms->oem_table_id);
> + build_fadt(tables_blob, tables->linker, &pmfadt, &x86ms->bld_oem);
>
> acpi_add_table(table_offsets, tables_blob);
> acpi_build_madt(tables_blob, tables->linker, X86_MACHINE(machine),
> - ACPI_DEVICE_IF(x86ms->acpi_dev), x86ms->oem_id,
> - x86ms->oem_table_id);
> + ACPI_DEVICE_IF(x86ms->acpi_dev), &x86ms->bld_oem);
>
> xsdt = tables_blob->len;
> - build_xsdt(tables_blob, tables->linker, table_offsets, x86ms->oem_id,
> - x86ms->oem_table_id);
> + build_xsdt(tables_blob, tables->linker, table_offsets, &x86ms->bld_oem);
>
> /* RSDP is in FSEG memory, so allocate it separately */
> {
> AcpiRsdpData rsdp_data = {
> /* ACPI 2.0: 5.2.4.3 RSDP Structure */
> .revision = 2, /* xsdt needs v2 */
> - .oem_id = x86ms->oem_id,
> + .oem_id = x86ms->bld_oem.oem_id,
> .xsdt_tbl_offset = &xsdt,
> .rsdt_tbl_offset = NULL,
> };
> diff --git a/hw/i386/x86.c b/hw/i386/x86.c
> index 8665876216..ce2a7aed54 100644
> --- a/hw/i386/x86.c
> +++ b/hw/i386/x86.c
> @@ -1203,7 +1203,7 @@ static char *x86_machine_get_oem_id(Object *obj, Error
> **errp)
> {
> X86MachineState *x86ms = X86_MACHINE(obj);
>
> - return g_strdup(x86ms->oem_id);
> + return g_strdup(x86ms->bld_oem.oem_id);
> }
>
> static void x86_machine_set_oem_id(Object *obj, const char *value, Error
> **errp)
> @@ -1211,21 +1211,20 @@ static void x86_machine_set_oem_id(Object *obj, const
> char *value, Error **errp)
> X86MachineState *x86ms = X86_MACHINE(obj);
> size_t len = strlen(value);
>
> - if (len > 6) {
> + if (len > ACPI_BUILD_OEM_ID_SIZE) {
> error_setg(errp,
> "User specified "X86_MACHINE_OEM_ID" value is bigger than
> "
> "6 bytes in size");
> return;
> }
> -
> - strncpy(x86ms->oem_id, value, 6);
> + ACPI_SET_BUILD_OEM_ID(x86ms->bld_oem, value);
> }
>
> static char *x86_machine_get_oem_table_id(Object *obj, Error **errp)
> {
> X86MachineState *x86ms = X86_MACHINE(obj);
>
> - return g_strdup(x86ms->oem_table_id);
> + return g_strdup(x86ms->bld_oem.oem_table_id);
> }
>
> static void x86_machine_set_oem_table_id(Object *obj, const char *value,
> @@ -1234,14 +1233,13 @@ static void x86_machine_set_oem_table_id(Object *obj,
> const char *value,
> X86MachineState *x86ms = X86_MACHINE(obj);
> size_t len = strlen(value);
>
> - if (len > 8) {
> + if (len > ACPI_BUILD_OEM_TABLE_ID_SIZE) {
> error_setg(errp,
> "User specified "X86_MACHINE_OEM_TABLE_ID
> - " value is bigger than "
> - "8 bytes in size");
> + " value is bigger than 8 bytes in size");
> return;
> }
> - strncpy(x86ms->oem_table_id, value, 8);
> + ACPI_SET_BUILD_OEM_TABLE_ID(x86ms->bld_oem, value);
> }
>
> static void x86_machine_initfn(Object *obj)
> @@ -1252,8 +1250,7 @@ static void x86_machine_initfn(Object *obj)
> x86ms->acpi = ON_OFF_AUTO_AUTO;
> x86ms->smp_dies = 1;
> x86ms->pci_irq_mask = ACPI_BUILD_PCI_IRQS;
> - x86ms->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6);
> - x86ms->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8);
> + ACPI_INIT_DEFAULT_BUILD_OEM(x86ms->bld_oem);
> }
>
> static void x86_machine_class_init(ObjectClass *oc, void *data)
- Re: [PATCH 2/2] acpi: Consolidate the handling of OEM ID and OEM Table ID fields,
Igor Mammedov <=