From: "Min Xu" <min.m.xu@intel.com>
To: devel@edk2.groups.io
Cc: Min M Xu <min.m.xu@intel.com>,
Erdem Aktas <erdemaktas@google.com>,
James Bottomley <jejb@linux.ibm.com>,
Jiewen Yao <jiewen.yao@intel.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
Gerd Hoffmann <kraxel@redhat.com>
Subject: [PATCH V5 5/8] OvmfPkg: Reserve and init EmuVariableNvStore in Pei-less Startup
Date: Tue, 6 Sep 2022 12:35:57 +0800 [thread overview]
Message-ID: <5ea1dbaa18b8358d05c3498dc5a049a9d7ad8d82.1662423715.git.min.m.xu@intel.com> (raw)
In-Reply-To: <cover.1662423715.git.min.m.xu@intel.com>
From: Min M Xu <min.m.xu@intel.com>
EmuVariableNvStore is reserved and init with below 2 functions defined in
PlatformInitLib:
- PlatformReserveEmuVariableNvStore
- PlatformInitEmuVariableNvStore
PlatformInitEmuVariableNvStore works when secure boot feature is enabled.
This is because secure boot needs the EFI variables (PK/KEK/DB/DBX, etc)
and EmuVariableNvStore is cleared when OVMF is launched with -bios
parameter.
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
---
OvmfPkg/Library/PeilessStartupLib/PeilessStartup.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/OvmfPkg/Library/PeilessStartupLib/PeilessStartup.c b/OvmfPkg/Library/PeilessStartupLib/PeilessStartup.c
index 7502ec44669e..380e71597206 100644
--- a/OvmfPkg/Library/PeilessStartupLib/PeilessStartup.c
+++ b/OvmfPkg/Library/PeilessStartupLib/PeilessStartup.c
@@ -42,6 +42,7 @@ InitializePlatform (
)
{
UINT32 LowerMemorySize;
+ VOID *VariableStore;
DEBUG ((DEBUG_INFO, "InitializePlatform in Pei-less boot\n"));
PlatformDebugDumpCmos ();
@@ -79,6 +80,12 @@ InitializePlatform (
LowerMemorySize
));
+ VariableStore = PlatformReserveEmuVariableNvStore ();
+ PlatformInfoHob->PcdEmuVariableNvStoreReserved = (UINT64)(UINTN)VariableStore;
+ #ifdef SECURE_BOOT_FEATURE_ENABLED
+ PlatformInitEmuVariableNvStore (VariableStore);
+ #endif
+
if (TdIsEnabled ()) {
PlatformTdxPublishRamRegions ();
} else {
--
2.29.2.windows.2
next prev parent reply other threads:[~2022-09-06 4:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-06 4:35 [PATCH V5 0/8] Enable secure-boot when lauch OVMF with -bios parameter Min Xu
2022-09-06 4:35 ` [PATCH V5 1/8] EmbeddedPkg: Add AllocateRuntimePages in PrePiMemoryAllocationLib Min Xu
2022-09-06 4:35 ` [PATCH V5 2/8] OvmfPkg/PeilessStartupLib: Delete TdxValidateCfv Min Xu
2022-09-06 4:35 ` [PATCH V5 3/8] OvmfPkg/PlatformInitLib: Add functions for EmuVariableNvStore Min Xu
2022-09-06 4:35 ` [PATCH V5 4/8] OvmfPkg/PlatformPei: Update ReserveEmuVariableNvStore Min Xu
2023-03-21 9:31 ` [edk2-devel] " joeyli
2023-03-24 0:38 ` Min Xu
2022-09-06 4:35 ` Min Xu [this message]
2022-09-06 4:35 ` [PATCH V5 6/8] OvmfPkg/NvVarsFileLib: Shortcut ConnectNvVarsToFileSystem in secure-boot Min Xu
2022-09-06 4:35 ` [PATCH V5 7/8] OvmfPkg/TdxDxe: Set PcdEmuVariableNvStoreReserved Min Xu
2022-09-06 4:36 ` [PATCH V5 8/8] OvmfPkg: Add build-flag SECURE_BOOT_FEATURE_ENABLED Min Xu
2022-09-06 7:22 ` [PATCH V5 0/8] Enable secure-boot when lauch OVMF with -bios parameter Yao, Jiewen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-list from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5ea1dbaa18b8358d05c3498dc5a049a9d7ad8d82.1662423715.git.min.m.xu@intel.com \
--to=devel@edk2.groups.io \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox