[PATCH v2 2/5] MdeMoudlePkg: introduce new PCD for Acpi/rsdp


Jianyong Wu
 

As there is lack of a machnism in Cloud Hypervisor to pass the base
address of Rsdp in Acpi, so a PCD varialbe is introduced here to
feed it.

Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>
---
MdeModulePkg/MdeModulePkg.dec | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index 148395511034..4c8baac35a9e 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -910,6 +910,13 @@ [PcdsFixedAtBuild]
# @Expression 0x80000001 | (gEfiMdeModulePkgTokenSpaceGuid.PcdLoadModuleAtFixAddressEnable == 0xFFFFFFFFFFFFFFFF || gEfiMdeModulePkgTokenSpaceGuid.PcdLoadModuleAtFixAddressEnable <= 0x0FFFFFFFFFFFFFFF)
gEfiMdeModulePkgTokenSpaceGuid.PcdLoadModuleAtFixAddressEnable|0|UINT64|0x30001015

+ ##
+ # This is the physical address of rsdp which is the core struct of Acpi.
+ # Some hypervisor may has no way to pass rsdp address to the guest, so a PCD
+ # is worth for those.
+ #
+ gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiRsdpBaseAddress|0x0|UINT64|0x30001056
+
## Progress Code for OS Loader LoadImage start.<BR><BR>
# PROGRESS_CODE_OS_LOADER_LOAD = (EFI_SOFTWARE_DXE_BS_DRIVER | (EFI_OEM_SPECIFIC | 0x00000000)) = 0x03058000<BR>
# @Prompt Progress Code for OS Loader LoadImage start.
--
2.17.1

Join devel@edk2.groups.io to automatically receive all group messages.