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UefiCpuPkg/MpInitLib: use PcdConfidentialComputingAttr to check SEV status

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BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3275

Previous commit introduced a generic confidential computing PCD that can
determine whether AMD SEV-ES is enabled. Update the MpInitLib to drop the
PcdSevEsIsEnabled in favor of PcdConfidentialComputingAttr.

Cc: Michael Roth <michael.roth@amd.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Min Xu <min.m.xu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Ray Ni <ray.ni@intel.com>
Suggested-by: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
This commit is contained in:
Brijesh Singh
2021-12-09 11:27:50 +08:00
committed by mergify[bot]
parent 504ae26b80
commit b95908e043
6 changed files with 90 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
UefiCpuPkg/Library/MpInitLib/DxeMpLib.c
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@@ -93,7 +93,7 @@ GetWakeupBuffer (
EFI_PHYSICAL_ADDRESS StartAddress;
EFI_MEMORY_TYPE MemoryType;
if (PcdGetBool (PcdSevEsIsEnabled)) {
if (ConfidentialComputingGuestHas (CCAttrAmdSevEs)) {
MemoryType = EfiReservedMemoryType;
} else {
MemoryType = EfiBootServicesData;
@@ -107,7 +107,7 @@ GetWakeupBuffer (
// LagacyBios driver depends on CPU Arch protocol which guarantees below
// allocation runs earlier than LegacyBios driver.
//
if (PcdGetBool (PcdSevEsIsEnabled)) {
if (ConfidentialComputingGuestHas (CCAttrAmdSevEs)) {
//
// SEV-ES Wakeup buffer should be under 0x88000 and under any previous one
//
@@ -125,7 +125,7 @@ GetWakeupBuffer (
ASSERT_EFI_ERROR (Status);
if (EFI_ERROR (Status)) {
StartAddress = (EFI_PHYSICAL_ADDRESS)-1;
} else if (PcdGetBool (PcdSevEsIsEnabled)) {
} else if (ConfidentialComputingGuestHas (CCAttrAmdSevEs)) {
//
// Next SEV-ES wakeup buffer allocation must be below this allocation
//