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cbmem: rename vdat to chromeos_acpi

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There is a confusingly named section in cbmem called vdat.
This section holds a data structure called chromeos_acpi_t,
which exposes some system information to the Chrome OS
userland utility crossystem.

Within the chromeos_acpi_t structure, there is a member
called vdat.  This (currently) holds a VbSharedDataHeader.

Rename the outer vdat to chromeos_acpi to make its purpose
clear, and prevent the bizarreness of being able to access
vdat->vdat.

Additionally, disallow external references to the
chromeos_acpi data structure in gnvs.c.

BUG=b:112288216
TEST=emerge-eve coreboot, run on eve
CQ-DEPEND=CL:1164722

Change-Id: Ia74e58cde21678f24b0bb6c1ca15048677116b2e
Signed-off-by: Joel Kitching <kitching@google.com>
Reviewed-on: https://review.coreboot.org/27888
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Joel Kitching
2018-08-07 12:29:30 +08:00
committed by Aaron Durbin
parent 8954395039
commit 75b1f768d8
8 changed files with 44 additions and 36 deletions
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4
payloads/libpayload/include/sysinfo.h
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@ -97,8 +97,8 @@ struct sysinfo_t {
void *vboot_handoff;
u32 vboot_handoff_size;
void *vdat_addr;
u32 vdat_size;
void *chromeos_acpi_addr;
u32 chromeos_acpi_size;
#if IS_ENABLED(CONFIG_LP_ARCH_X86)
int x86_rom_var_mtrr_index;