From: "Alexey Kardashevskiy" <aik@amd.com>
To: <devel@edk2.groups.io>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>,
Jiewen Yao <jiewen.yao@intel.com>,
Jordan Justen <jordan.l.justen@intel.com>,
"Gerd Hoffmann" <kraxel@redhat.com>,
Brijesh Singh <brijesh.singh@amd.com>,
"Erdem Aktas" <erdemaktas@google.com>,
James Bottomley <jejb@linux.ibm.com>, Min Xu <min.m.xu@intel.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
"Alexey Kardashevskiy" <aik@amd.com>
Subject: [PATCH ovmf 5/5] OvmfPkf: Enable AMD SEV-ES DebugSwap for DXE
Date: Thu, 1 Dec 2022 13:35:21 +1100 [thread overview]
Message-ID: <20221201023521.10028-6-aik@amd.com> (raw)
In-Reply-To: <20221201023521.10028-1-aik@amd.com>
This writes the feature bit into PcdConfidentialComputingGuestAttr
and enables DebugSwap for the DXE stage too.
Signed-off-by: Alexey Kardashevskiy <aik@amd.com>
---
OvmfPkg/PlatformPei/AmdSev.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/OvmfPkg/PlatformPei/AmdSev.c b/OvmfPkg/PlatformPei/AmdSev.c
index e1b9fd9b7f68..479f898adff4 100644
--- a/OvmfPkg/PlatformPei/AmdSev.c
+++ b/OvmfPkg/PlatformPei/AmdSev.c
@@ -324,6 +324,7 @@ AmdSevInitialize (
)
{
UINT64 EncryptionMask;
+ UINT64 CCGuestAttr;
RETURN_STATUS PcdStatus;
//
@@ -407,13 +408,19 @@ AmdSevInitialize (
// technology is active.
//
if (MemEncryptSevSnpIsEnabled ()) {
- PcdStatus = PcdSet64S (PcdConfidentialComputingGuestAttr, CCAttrAmdSevSnp);
+ CCGuestAttr = CCAttrAmdSevSnp;
} else if (MemEncryptSevEsIsEnabled ()) {
- PcdStatus = PcdSet64S (PcdConfidentialComputingGuestAttr, CCAttrAmdSevEs);
+ CCGuestAttr = CCAttrAmdSevEs;
} else {
- PcdStatus = PcdSet64S (PcdConfidentialComputingGuestAttr, CCAttrAmdSev);
+ CCGuestAttr = CCAttrAmdSev;
}
+ if (MemEncryptSevEsDebugSwapIsEnabled ()) {
+ CCGuestAttr |= CCAttrAmdSevFeatureDebugSwap;
+ }
+
+ PcdStatus = PcdSet64S (PcdConfidentialComputingGuestAttr, CCGuestAttr);
+
ASSERT_RETURN_ERROR (PcdStatus);
}
--
2.38.1
next prev parent reply other threads:[~2022-12-01 2:38 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-01 2:35 [PATCH ovmf 0/5] Enable AMD SEV-ES DebugSwap Alexey Kardashevskiy
2022-12-01 2:35 ` [PATCH ovmf 1/5] MdePkg/Register/Amd: Define all bits from MSR_SEV_STATUS_REGISTER Alexey Kardashevskiy
2022-12-07 2:13 ` 回复: [edk2-devel] " gaoliming
2022-12-07 12:24 ` Alexey Kardashevskiy
2022-12-21 1:01 ` 回复: " gaoliming
2022-12-01 2:35 ` [PATCH ovmf 3/5] OvmfPkg: Add AMD SEV-ES DebugSwap feature support Alexey Kardashevskiy
2022-12-01 2:35 ` [PATCH ovmf 4/5] UefiCpuPkg: Add AMD SEV-ES features support Alexey Kardashevskiy
2022-12-01 2:35 ` Alexey Kardashevskiy [this message]
2022-12-01 5:36 ` [PATCH ovmf 2/5] MdePkg: Add AMD SEV features to PcdConfidentialComputingGuestAttr Alexey Kardashevskiy
[not found] ` <20221201023521.10028-3-aik@amd.com>
2022-12-01 14:47 ` Subject: " Lendacky, Thomas
2022-12-02 12:26 ` Alexey Kardashevskiy
2022-12-02 12:59 ` Gerd Hoffmann
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