sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Revert "ArmVirtPkg/FdtClientDxe: make DT table installation !ACPI dependent"

Browse Source 
This reverts commit 78c41ff519.

We realized that DXE drivers that are independent of AcpiPlatformDxe (that
is, independent of QEMU's ACPI generation), such as RamDiskDxe and
BootGraphicsResourceTableDxe, may produce and/or manipulate ACPI tables,
at driver dispatch or even at Ready To Boot.

This makes it unsafe for us to check for ACPI presence in the UEFI system
config table in a Ready To Boot callback, in order to decide about
exposing the DT.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
This commit is contained in:
Laszlo Ersek
2017-03-17 13:37:47 +01:00
parent 3efa3f3d05
commit 30cb1485b1
4 changed files with 23 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
ArmVirtPkg/ArmVirtPkg.dec
View File

@@ -58,3 +58,13 @@
# EFI_VT_100_GUID.
#
gArmVirtTokenSpaceGuid.PcdTerminalTypeGuidBuffer|{0x65, 0x60, 0xA6, 0xDF, 0x19, 0xB4, 0xD3, 0x11, 0x9A, 0x2D, 0x00, 0x90, 0x27, 0x3F, 0xC1, 0x4D}|VOID*|0x00000007
[PcdsFeatureFlag]
#
# Pure ACPI boot
#
# Inhibit installation of the FDT as a configuration table if this feature
# PCD is TRUE. Otherwise, the OS is presented with both a DT and an ACPI
# description of the platform, and it is up to the OS to choose.
#
gArmVirtTokenSpaceGuid.PcdPureAcpiBoot|FALSE|BOOLEAN|0x0000000a