[PATCH 1/1] acpi: use U-Boot ACPI vendor ID
Heinrich Schuchardt
heinrich.schuchardt at canonical.com
Fri Oct 31 20:52:53 CET 2025
The U-Boot project has been assigned the vendor ID 'UBOO' [1]. Use this
vendor ID and our release version in the ACPI table headers.
[1] ACPI ID Registry
https://uefi.org/ACPI_ID_List
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
---
arch/x86/lib/acpi_nhlt.c | 2 +-
arch/x86/lib/acpi_table.c | 2 +-
include/acpi/acpi_table.h | 20 +++++++++++---
lib/acpi/acpi_table.c | 6 ++---
test/dm/acpi.c | 55 +++++++++++++++++++++++----------------
5 files changed, 54 insertions(+), 31 deletions(-)
diff --git a/arch/x86/lib/acpi_nhlt.c b/arch/x86/lib/acpi_nhlt.c
index 8aae5fa5af7..4ffce589d7a 100644
--- a/arch/x86/lib/acpi_nhlt.c
+++ b/arch/x86/lib/acpi_nhlt.c
@@ -408,7 +408,7 @@ int nhlt_serialise_oem_overrides(struct acpi_ctx *ctx, struct nhlt *nhlt,
memcpy(header->oem_table_id, oem_table_id, oem_table_id_len);
}
header->oem_revision = oem_revision;
- memcpy(header->creator_id, ASLC_ID, 4);
+ memcpy(header->creator_id, ACPI_CREATOR_ID, 4);
cur.buf = (void *)(header + 1);
cur.start = (void *)header;
diff --git a/arch/x86/lib/acpi_table.c b/arch/x86/lib/acpi_table.c
index b13292c4150..6bd7ad799bf 100644
--- a/arch/x86/lib/acpi_table.c
+++ b/arch/x86/lib/acpi_table.c
@@ -224,7 +224,7 @@ static int acpi_write_tpm2(struct acpi_ctx *ctx,
/* Fill out header fields. */
acpi_fill_header(header, "TPM2");
- memcpy(header->creator_id, ASLC_ID, 4);
+ memcpy(header->creator_id, ACPI_CREATOR_ID, 4);
header->length = sizeof(struct acpi_tpm2);
header->revision = acpi_get_table_revision(ACPITAB_TPM2);
diff --git a/include/acpi/acpi_table.h b/include/acpi/acpi_table.h
index 05b6385544e..4895366a618 100644
--- a/include/acpi/acpi_table.h
+++ b/include/acpi/acpi_table.h
@@ -13,15 +13,29 @@
#ifndef __ACPI_TABLE_H__
#define __ACPI_TABLE_H__
+#include <version.h>
#include <dm/acpi.h>
#define RSDP_SIG "RSD PTR " /* RSDP pointer signature */
#define OEM_ID "U-BOOT" /* U-Boot */
#define OEM_TABLE_ID "U-BOOTBL" /* U-Boot Table */
-#define ASLC_ID "INTL" /* Intel ASL Compiler */
-/* TODO(sjg at chromium.org): Figure out how to get compiler revision */
-#define ASL_REVISION 0
+/**
+ * define ACPI_CREATOR_ID - ACPI creator ID
+ *
+ * This is the ACPI assigned vendor ID for the U-Boot project.
+ * It is used in the ACPI tables created by U-Boot.
+ */
+#define ACPI_CREATOR_ID "UBOO"
+
+/**
+ * define ACPI_CREATOR_REVISION - ACPI creator ID
+ *
+ * This encodes the U-Boot version.
+ * It is used in the ACPI tables created by U-Boot.
+ */
+#define ACPI_CREATOR_REVISION \
+ (U_BOOT_VERSION_NUM << 4 | U_BOOT_VERSION_NUM_PATCH)
#define ACPI_RSDP_REV_ACPI_1_0 0
#define ACPI_RSDP_REV_ACPI_2_0 2
diff --git a/lib/acpi/acpi_table.c b/lib/acpi/acpi_table.c
index 43b71182133..52b05efd62d 100644
--- a/lib/acpi/acpi_table.c
+++ b/lib/acpi/acpi_table.c
@@ -134,8 +134,8 @@ void acpi_fill_header(struct acpi_table_header *header, char *signature)
memcpy(header->oem_id, OEM_ID, 6);
memcpy(header->oem_table_id, OEM_TABLE_ID, 8);
header->oem_revision = OEM_REVISION;
- memcpy(header->creator_id, ASLC_ID, 4);
- header->creator_revision = ASL_REVISION;
+ memcpy(header->creator_id, ACPI_CREATOR_ID, 4);
+ header->creator_revision = ACPI_CREATOR_REVISION;
}
void acpi_align(struct acpi_ctx *ctx)
@@ -248,7 +248,7 @@ int acpi_write_fadt(struct acpi_ctx *ctx, const struct acpi_writer *entry)
header->revision = acpi_get_table_revision(ACPITAB_FADT);
memcpy(header->oem_id, OEM_ID, 6);
memcpy(header->oem_table_id, OEM_TABLE_ID, 8);
- memcpy(header->creator_id, ASLC_ID, 4);
+ memcpy(header->creator_id, ACPI_CREATOR_ID, 4);
header->creator_revision = 1;
fadt->minor_revision = 2;
diff --git a/test/dm/acpi.c b/test/dm/acpi.c
index db012b6d2f1..559ea269de2 100644
--- a/test/dm/acpi.c
+++ b/test/dm/acpi.c
@@ -261,8 +261,8 @@ static int dm_test_acpi_fill_header(struct unit_test_state *uts)
ut_asserteq_mem(OEM_TABLE_ID, hdr.oem_table_id,
sizeof(hdr.oem_table_id));
ut_asserteq(OEM_REVISION, hdr.oem_revision);
- ut_asserteq_mem(ASLC_ID, hdr.creator_id, sizeof(hdr.creator_id));
- ut_asserteq(ASL_REVISION, hdr.creator_revision);
+ ut_asserteq_mem(ACPI_CREATOR_ID, hdr.creator_id, sizeof(hdr.creator_id));
+ ut_asserteq(ACPI_CREATOR_REVISION, hdr.creator_revision);
return 0;
}
@@ -415,22 +415,27 @@ static int dm_test_acpi_cmd_list(struct unit_test_state *uts)
ut_assert_nextline("RSDP %16lx %5zx v02 U-BOOT", addr,
sizeof(struct acpi_rsdp));
addr = ALIGN(addr + sizeof(struct acpi_rsdp), 16);
- ut_assert_nextline("RSDT %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0",
+ ut_assert_nextline("RSDT %16lx %5zx v01 U-BOOT U-BOOTBL %x UBOO %x",
addr, sizeof(struct acpi_table_header) +
- 3 * sizeof(u32), OEM_REVISION);
+ 3 * sizeof(u32), OEM_REVISION,
+ ACPI_CREATOR_REVISION);
addr = ALIGN(addr + sizeof(struct acpi_rsdt), 16);
- ut_assert_nextline("XSDT %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0",
+ ut_assert_nextline("XSDT %16lx %5zx v01 U-BOOT U-BOOTBL %x UBOO %x",
addr, sizeof(struct acpi_table_header) +
- 3 * sizeof(u64), OEM_REVISION);
+ 3 * sizeof(u64), OEM_REVISION,
+ ACPI_CREATOR_REVISION);
addr = ALIGN(addr + sizeof(struct acpi_xsdt), 64);
- ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0",
- addr, sizeof(struct acpi_dmar), OEM_REVISION);
+ ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x UBOO %x",
+ addr, sizeof(struct acpi_dmar), OEM_REVISION,
+ ACPI_CREATOR_REVISION);
addr = ALIGN(addr + sizeof(struct acpi_dmar), 16);
- ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0",
- addr, sizeof(struct acpi_dmar), OEM_REVISION);
+ ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x UBOO %x",
+ addr, sizeof(struct acpi_dmar), OEM_REVISION,
+ ACPI_CREATOR_REVISION);
addr = ALIGN(addr + sizeof(struct acpi_dmar), 16);
- ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0",
- addr, sizeof(struct acpi_dmar), OEM_REVISION);
+ ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x UBOO %x",
+ addr, sizeof(struct acpi_dmar), OEM_REVISION,
+ ACPI_CREATOR_REVISION);
ut_assert_console_end();
unmap_sysmem(buf);
free(buf);
@@ -459,23 +464,27 @@ static int dm_test_acpi_cmd_list_chksum(struct unit_test_state *uts)
ut_assert_nextline("RSDP %16lx %5zx v02 U-BOOT OK OK", addr,
sizeof(struct acpi_rsdp));
addr = ALIGN(addr + sizeof(struct acpi_rsdp), 16);
- ut_assert_nextline("RSDT %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0 OK",
+ ut_assert_nextline("RSDT %16lx %5zx v01 U-BOOT U-BOOTBL %x UBOO %x OK",
addr, sizeof(struct acpi_table_header) +
- 3 * sizeof(u32), OEM_REVISION);
+ 3 * sizeof(u32), OEM_REVISION,
+ ACPI_CREATOR_REVISION);
addr = ALIGN(addr + sizeof(struct acpi_rsdt), 16);
- ut_assert_nextline("XSDT %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0 OK",
+ ut_assert_nextline("XSDT %16lx %5zx v01 U-BOOT U-BOOTBL %x UBOO %x OK",
addr, sizeof(struct acpi_table_header) +
- 3 * sizeof(u64), OEM_REVISION);
+ 3 * sizeof(u64), OEM_REVISION,
+ ACPI_CREATOR_REVISION);
addr = ALIGN(addr + sizeof(struct acpi_xsdt), 64);
- ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0 OK",
- addr, sizeof(struct acpi_dmar), OEM_REVISION);
+ ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x UBOO %x OK",
+ addr, sizeof(struct acpi_dmar), OEM_REVISION,
+ ACPI_CREATOR_REVISION);
addr = ALIGN(addr + sizeof(struct acpi_dmar), 16);
- ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0 OK",
- addr, sizeof(struct acpi_dmar), OEM_REVISION);
+ ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x UBOO %x OK",
+ addr, sizeof(struct acpi_dmar), OEM_REVISION,
+ ACPI_CREATOR_REVISION);
addr = ALIGN(addr + sizeof(struct acpi_dmar), 16);
- ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0 OK",
- addr, sizeof(struct acpi_dmar), OEM_REVISION);
- ut_assert_console_end();
+ ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x UBOO %x OK",
+ addr, sizeof(struct acpi_dmar), OEM_REVISION,
+ ACPI_CREATOR_REVISION);
ut_assert_console_end();
unmap_sysmem(buf);
free(buf);
--
2.51.0
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