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x86: Update Chromium OS GNVS names

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The Global Non-Volatile Storage struct has some fields with particular
meanings. Rename these to make things easier to follow. Also add a few
more boot flags.

GNVS should not be confused with GNVQ (Going Nowhere Very Quickly).

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2021-01-24 10:06:07 -07:00 committed by Bin Meng
parent 76baecf670
commit f82438948f
1 changed files with 28 additions and 6 deletions
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34
arch/x86/include/asm/intel_gnvs.h
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@ -9,6 +9,7 @@
#ifndef _INTEL_GNVS_H_
#define _INTEL_GNVS_H_
#include <linux/bitops.h>
/*
* The chromeos_acpi portion of ACPI GNVS is assumed to live from offset
* 0x100 - 0x1000. When defining acpi_global_nvs, use check_member
@ -18,6 +19,11 @@
*/
#define GNVS_CHROMEOS_ACPI_OFFSET 0x100
enum {
BOOT_REASON_OTHER = 0,
BOOT_REASON_S3DIAG = 9
};
enum {
CHSW_RECOVERY_X86 = BIT(1),
CHSW_RECOVERY_EC = BIT(2),
@ -25,6 +31,22 @@ enum {
CHSW_FIRMWARE_WP = BIT(9),
};
enum {
RECOVERY_REASON_NONE = 0,
RECOVERY_REASON_ME = 1
};
enum {
ACTIVE_ECFW_RO = 0,
ACTIVE_ECFW_RW = 1
};
enum {
BINF_RECOVERY = 0,
BINF_RW_A = 1,
BINF_RW_B = 2
};
enum {
FIRMWARE_TYPE_AUTO_DETECT = -1,
FIRMWARE_TYPE_RECOVERY = 0,
@ -40,14 +62,14 @@ struct __packed chromeos_acpi_gnvs {
u32 active_main_fw; /* 04 (0=recovery, 1=A, 2=B) */
u32 activeec_fw; /* 08 (0=RO, 1=RW) */
u16 switches; /* 0c CHSW */
u8 vbt4[256]; /* 0e HWID */
u8 vbt5[64]; /* 10e FWID */
u8 vbt6[64]; /* 14e FRID - 275 */
u8 hwid[256]; /* 0e HWID */
u8 fwid[64]; /* 10e FWID */
u8 frid[64]; /* 14e FRID - 275 */
u32 main_fw_type; /* 18e (2 = developer mode) */
u32 vbt8; /* 192 recovery reason */
u32 vbt9; /* 196 fmap base address */
u32 recovery_reason; /* 192 recovery reason */
u32 fmap_base; /* 196 fmap base address */
u8 vdat[3072]; /* 19a VDAT space filled by verified boot */
u32 vbt10; /* d9a smbios bios version */
u32 fwid_ptr; /* d9a smbios bios version */
u32 mehh[8]; /* d9e management engine hash */
u32 ramoops_base; /* dbe ramoops base address */
u32 ramoops_len; /* dc2 ramoops length */