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x86: acpi: Expand the GNVS

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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>
This commit is contained in:
Simon Glass 2020-09-22 12:44:54 -06:00 committed by Bin Meng
parent 55109f1d4e
commit 7924b499a2
2 changed files with 2 additions and 1 deletions
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2
arch/x86/include/asm/acpi/global_nvs.h
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@ -16,6 +16,6 @@
* DSDT, since it is created by code, so ACPI_GNVS_ADDR is unused.
*/
#define ACPI_GNVS_ADDR 0xdeadbeef
#define ACPI_GNVS_SIZE 0x100
#define ACPI_GNVS_SIZE 0x1000
#endif /* _ACPI_GNVS_H_ */

1
arch/x86/include/asm/intel_gnvs.h
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@ -36,6 +36,7 @@ struct __packed acpi_global_nvs {
u8 unused2[0x1000 - 0x100]; /* Pad out to 4096 bytes */
#endif
};
#ifdef CONFIG_CHROMEOS
check_member(acpi_global_nvs, chromeos, GNVS_CHROMEOS_ACPI_OFFSET);
#endif