u-boot/arch/x86/include/asm/intel_gnvs.h
Simon Glass 7924b499a2 x86: acpi: Expand the GNVS
Expand this to 4KB so that it is possible to add custom information to it.
On Chromebooks this is used to pass verified-boot information.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-25 11:27:13 +08:00

44 lines
1.4 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2019 Intel Corporation.
*
* Taken from coreboot intelblocks/nvs.h
* Copyright 2019 Google LLC
*/
#ifndef _INTEL_GNVS_H_
#define _INTEL_GNVS_H_
struct __packed acpi_global_nvs {
/* Miscellaneous */
u8 pcnt; /* 0x00 - Processor Count */
u8 ppcm; /* 0x01 - Max PPC State */
u8 lids; /* 0x02 - LID State */
u8 pwrs; /* 0x03 - AC Power State */
u8 dpte; /* 0x04 - Enable DPTF */
u32 cbmc; /* 0x05 - 0x08 - coreboot Memory Console */
u64 pm1i; /* 0x09 - 0x10 - System Wake Source - PM1 Index */
u64 gpei; /* 0x11 - 0x18 - GPE Wake Source */
u64 nhla; /* 0x19 - 0x20 - NHLT Address */
u32 nhll; /* 0x21 - 0x24 - NHLT Length */
u32 prt0; /* 0x25 - 0x28 - PERST_0 Address */
u8 scdp; /* 0x29 - SD_CD GPIO portid */
u8 scdo; /* 0x2a - GPIO pad offset relative to the community */
u8 uior; /* 0x2b - UART debug controller init on S3 resume */
u8 ecps; /* 0x2c - SGX Enabled status */
u64 emna; /* 0x2d - 0x34 EPC base address */
u64 elng; /* 0x35 - 0x3C EPC Length */
u8 unused1[0x100 - 0x3d]; /* Pad out to 256 bytes */
#ifdef CONFIG_CHROMEOS
/* ChromeOS-specific (0x100 - 0xfff) */
struct chromeos_acpi chromeos;
#else
u8 unused2[0x1000 - 0x100]; /* Pad out to 4096 bytes */
#endif
};
#ifdef CONFIG_CHROMEOS
check_member(acpi_global_nvs, chromeos, GNVS_CHROMEOS_ACPI_OFFSET);
#endif
#endif /* _INTEL_GNVS_H_ */