From cddba4528d062b676d3766d1bb83504de00042cb Mon Sep 17 00:00:00 2001 From: Arthur Heymans Date: Thu, 3 Mar 2022 22:59:23 +0100 Subject: libpayload: Parse the ACPI RSDP table entry Change-Id: I583cda63c3f0b58f8d198ed5ecea7c4619c7a897 Signed-off-by: Arthur Heymans Reviewed-on: https://review.coreboot.org/c/coreboot/+/62576 Tested-by: build bot (Jenkins) Reviewed-by: Tim Wawrzynczak --- payloads/libpayload/include/coreboot_tables.h | 11 +++++++++++ payloads/libpayload/include/sysinfo.h | 1 + 2 files changed, 12 insertions(+) (limited to 'payloads/libpayload/include') diff --git a/payloads/libpayload/include/coreboot_tables.h b/payloads/libpayload/include/coreboot_tables.h index 3fd3fc85e1..bd23d34c83 100644 --- a/payloads/libpayload/include/coreboot_tables.h +++ b/payloads/libpayload/include/coreboot_tables.h @@ -83,6 +83,7 @@ enum { CB_TAG_BOARD_CONFIG = 0x0040, CB_TAG_ACPI_CNVS = 0x0041, CB_TAG_TYPE_C_INFO = 0x0042, + CB_TAG_ACPI_RSDP = 0x0043, CB_TAG_CMOS_OPTION_TABLE = 0x00c8, CB_TAG_OPTION = 0x00c9, CB_TAG_OPTION_ENUM = 0x00ca, @@ -422,6 +423,16 @@ struct cb_cmos_checksum { u32 type; }; +/* + * Handoff the ACPI RSDP + */ +struct cb_acpi_rsdp { + uint32_t tag; + uint32_t size; + struct cbuint64 rsdp_pointer; /* Address of the ACPI RSDP */ +}; + + /* Helpful inlines */ static inline u64 cb_unpack64(struct cbuint64 val) diff --git a/payloads/libpayload/include/sysinfo.h b/payloads/libpayload/include/sysinfo.h index eba4b89227..c8c10524f4 100644 --- a/payloads/libpayload/include/sysinfo.h +++ b/payloads/libpayload/include/sysinfo.h @@ -111,6 +111,7 @@ struct sysinfo_t { uintptr_t mrc_cache; uintptr_t acpi_gnvs; uintptr_t acpi_cnvs; + uintptr_t acpi_rsdp; #define UNDEFINED_STRAPPING_ID (~0) #define UNDEFINED_FW_CONFIG ~((uint64_t)0) -- cgit v1.2.3