From: "Ard Biesheuvel" <ardb@kernel.org>
To: devel@edk2.groups.io
Cc: Ard Biesheuvel <ardb@kernel.org>,
Leif Lindholm <quic_llindhol@quicinc.com>,
Alexander Graf <agraf@csgraf.de>,
Gerd Hoffmann <kraxel@redhat.com>,
Sami Mujawar <Sami.Mujawar@arm.com>
Subject: [PATCH v3 resend 07/11] ArmVirtPkg/ArmVirtQemu: enable initial ID map at early boot
Date: Wed, 19 Oct 2022 11:22:07 +0200 [thread overview]
Message-ID: <20221019092211.465699-8-ardb@kernel.org> (raw)
In-Reply-To: <20221019092211.465699-1-ardb@kernel.org>
Now that we have all the pieces in place, switch the AArch64 version of
ArmVirtQemu to a mode where the first thing it does out of reset is
enable a preliminary ID map that covers the NOR flash and sufficient
DRAM to create the UEFI page tables as usual.
The advantage of this is that no manipulation of memory occurs any
longer before the MMU is enabled, which removes the need for explicit
coherency management, which is cumbersome and bad for performance.
It also means we no longer need to build all components that may execute
with the MMU off (including BASE libraries) with strict alignment.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
ArmVirtPkg/ArmVirtQemu.dsc | 17 ++++++++++++++---
ArmVirtPkg/ArmVirtQemu.fdf | 2 +-
2 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/ArmVirtPkg/ArmVirtQemu.dsc b/ArmVirtPkg/ArmVirtQemu.dsc
index 302c0d2a4e29..21a321e35794 100644
--- a/ArmVirtPkg/ArmVirtQemu.dsc
+++ b/ArmVirtPkg/ArmVirtQemu.dsc
@@ -63,8 +63,6 @@ [LibraryClasses.common]
QemuFwCfgSimpleParserLib|OvmfPkg/Library/QemuFwCfgSimpleParserLib/QemuFwCfgSimpleParserLib.inf
QemuLoadImageLib|OvmfPkg/Library/GenericQemuLoadImageLib/GenericQemuLoadImageLib.inf
- ArmPlatformLib|ArmPlatformPkg/Library/ArmPlatformLibNull/ArmPlatformLibNull.inf
-
TimerLib|ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.inf
NorFlashPlatformLib|ArmVirtPkg/Library/NorFlashQemuLib/NorFlashQemuLib.inf
@@ -92,6 +90,12 @@ [LibraryClasses.common]
TpmPlatformHierarchyLib|SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.inf
!endif
+[LibraryClasses.AARCH64]
+ ArmPlatformLib|ArmVirtPkg/Library/ArmPlatformLibQemu/ArmPlatformLibQemu.inf
+
+[LibraryClasses.ARM]
+ ArmPlatformLib|ArmPlatformPkg/Library/ArmPlatformLibNull/ArmPlatformLibNull.inf
+
[LibraryClasses.common.PEIM]
ArmVirtMemInfoLib|ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoPeiLib.inf
@@ -112,6 +116,8 @@ [LibraryClasses.common.UEFI_DRIVER]
UefiScsiLib|MdePkg/Library/UefiScsiLib/UefiScsiLib.inf
[BuildOptions]
+ GCC:*_*_AARCH64_CC_XIPFLAGS = -mno-strict-align
+
!include NetworkPkg/NetworkBuildOptions.dsc.inc
################################################################################
@@ -310,7 +316,12 @@ [Components.common]
PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
}
ArmPlatformPkg/PlatformPei/PlatformPeim.inf
- ArmPlatformPkg/MemoryInitPei/MemoryInitPeim.inf
+ ArmVirtPkg/MemoryInitPei/MemoryInitPeim.inf {
+ <LibraryClasses>
+!if $(ARCH) == AARCH64
+ ArmMmuLib|ArmPkg/Library/ArmMmuLib/ArmMmuPeiLib.inf
+!endif
+ }
ArmPkg/Drivers/CpuPei/CpuPei.inf
MdeModulePkg/Universal/Variable/Pei/VariablePei.inf
diff --git a/ArmVirtPkg/ArmVirtQemu.fdf b/ArmVirtPkg/ArmVirtQemu.fdf
index b5e2253295fe..7f17aeb3ad0d 100644
--- a/ArmVirtPkg/ArmVirtQemu.fdf
+++ b/ArmVirtPkg/ArmVirtQemu.fdf
@@ -107,7 +107,7 @@ [FV.FVMAIN_COMPACT]
INF ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf
INF MdeModulePkg/Core/Pei/PeiMain.inf
INF ArmPlatformPkg/PlatformPei/PlatformPeim.inf
- INF ArmPlatformPkg/MemoryInitPei/MemoryInitPeim.inf
+ INF ArmVirtPkg/MemoryInitPei/MemoryInitPeim.inf
INF ArmPkg/Drivers/CpuPei/CpuPei.inf
INF MdeModulePkg/Universal/PCD/Pei/Pcd.inf
INF MdeModulePkg/Universal/Variable/Pei/VariablePei.inf
--
2.35.1
next prev parent reply other threads:[~2022-10-19 9:22 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-19 9:22 [PATCH v3 resend 00/11] ArmVirtPkg/ArmVirtQemu: Performance streamlining Ard Biesheuvel
2022-10-19 9:22 ` [PATCH v3 resend 01/11] ArmVirtPkg: remove EbcDxe from all platforms Ard Biesheuvel
2022-10-20 8:58 ` [edk2-devel] " Leif Lindholm
2022-10-19 9:22 ` [PATCH v3 resend 02/11] ArmVirtPkg: do not enable iSCSI driver by default Ard Biesheuvel
2022-10-20 9:03 ` Leif Lindholm
2022-10-20 12:34 ` Ard Biesheuvel
2022-10-19 9:22 ` [PATCH v3 resend 03/11] ArmVirtPkg: make EFI_LOADER_DATA non-executable Ard Biesheuvel
2022-10-19 9:22 ` [PATCH v3 resend 04/11] ArmVirtPkg/ArmVirtQemu: wire up timeout PCD to Timeout variable Ard Biesheuvel
2022-10-19 9:22 ` [PATCH v3 resend 05/11] ArmVirtPkg/ArmVirtQemu: implement ArmPlatformLib with static ID map Ard Biesheuvel
2022-10-19 9:22 ` [PATCH v3 resend 06/11] ArmVirtPkg/ArmVirtQemu: use first 128 MiB as permanent PEI memory Ard Biesheuvel
2022-10-19 9:22 ` Ard Biesheuvel [this message]
2022-11-08 15:59 ` [PATCH v3 resend 07/11] ArmVirtPkg/ArmVirtQemu: enable initial ID map at early boot Gerd Hoffmann
2022-10-19 9:22 ` [PATCH v3 resend 08/11] ArmVirtPkg/ArmVirtQemu: Drop unused variable PEIM Ard Biesheuvel
2022-10-19 9:22 ` [PATCH v3 resend 09/11] ArmVirtPkg/ArmVirtQemu: avoid shadowing PEIMs unless necessary Ard Biesheuvel
2022-10-19 9:22 ` [PATCH v3 resend 10/11] ArmVirtPkg/QemuVirtMemInfoLib: use HOB not PCD to record the memory size Ard Biesheuvel
2022-10-19 9:22 ` [PATCH v3 resend 11/11] ArmVirtPkg/ArmVirtQemu: omit PCD PEIM unless TPM support is enabled Ard Biesheuvel
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