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OvmfPkg/RiscVVirt: Add support for separate code and variable store

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Currently, RiscVVirtQemu supports unified code and variable store
mainly because only one pflash devices was available in qemu for
EDK2. However, this doesn't allow to map the code part as read-only.

With recent qemu enhancements, it is now possible for EDK2 to make
use of both pflash devices in RISC-V virt machine. So, add support
to create code and vars images separately. This also allows easy
firmware code updates without losing the variable store.

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Andrei Warkentin <andrei.warkentin@intel.com>
Cc: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Sunil V L
2023-04-18 10:53:39 +05:30
committed by mergify[bot]
parent 420cd54993
commit 37423fa344
3 changed files with 19 additions and 13 deletions
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2
OvmfPkg/RiscVVirt/RiscVVirtQemu.dsc
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@@ -85,7 +85,7 @@
QemuLoadImageLib|OvmfPkg/Library/GenericQemuLoadImageLib/GenericQemuLoadImageLib.inf
TimerLib|UefiCpuPkg/Library/BaseRiscV64CpuTimerLib/BaseRiscV64CpuTimerLib.inf
VirtNorFlashPlatformLib|OvmfPkg/RiscVVirt/Library/VirtNorFlashPlatformLib/VirtNorFlashStaticLib.inf
VirtNorFlashPlatformLib|OvmfPkg/RiscVVirt/Library/VirtNorFlashPlatformLib/VirtNorFlashDeviceTreeLib.inf
CapsuleLib|MdeModulePkg/Library/DxeCapsuleLibNull/DxeCapsuleLibNull.inf
BootLogoLib|MdeModulePkg/Library/BootLogoLib/BootLogoLib.inf