mirror of https://github.com/acidanthera/audk.git
2f981bddcb
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4504 The BaseRngLibTimerLib allows to generate number based on a timer. This mechanism allows to have a basic non-secure implementation for non-production platforms. To bind and identify Random Number Generators implementations with a GUID, an unsafe GUID should be added. This GUID cannot be added to the MdePkg unless it is also added to a specification. To keep the MdePkg self-contained, copy the BaseRngLibTimerLib to the MdeModulePkg. This will allow to define an unsafe Rng GUID in a later patch in the MdeModulePkg. The MdePkg implementation will be removed later. This allows to give some time to platform owners to switch to the MdeModulePkg implementation. Signed-off-by: Pierre Gondois <pierre.gondois@arm.com> Reviewed-by: Sami Mujawar <sami.mujawar@arm.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Tested-by: Kun Qin <kun.qin@microsoft.com> |
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| CloudHvDefines.fdf.inc | ||
| CloudHvElfHeader.fdf.inc | ||
| CloudHvX64.dsc | ||
| CloudHvX64.fdf | ||
| README | ||
README
CloudHv is a port of OVMF for the Cloud Hypervisor project. The Cloud Hypervisor project ---------------------------- Cloud Hypervisor is a Virtual Machine Monitor that runs on top of KVM. The project focuses on exclusively running modern, cloud workloads, on top of a limited set of hardware architectures and platforms. Cloud workloads refers to those that are usually run by customers inside a cloud provider. This means modern operating systems with most I/O handled by paravirtualised devices (i.e. virtio), no requirement for legacy devices, and 64-bit CPUs. https://github.com/cloud-hypervisor/cloud-hypervisor Design ------ Based on Cloud Hypervisor's motto to reduce the emulation as much as possible, the project logically decided to support the PVH boot specification as the only way of booting virtual machines. That includes both direct kernel boot and OVMF firmware which must be generated as PVH ELF binaries. PVH allows information like location of ACPI tables and location of guest RAM ranges to be shared without the need of an extra emulated device like a CMOS. Features -------- * Serial console * EFI shell * virtio-pci Build ----- The way to build the CloudHv target is as follows: OvmfPkg/build.sh -p OvmfPkg/CloudHv/CloudHvX64.dsc -a X64 -b DEBUG Usage ----- Assuming Cloud Hypervisor is already built, one can start a virtual machine as follows: ./cloud-hypervisor \ --cpus boot=1 \ --memory size=1G \ --kernel Build/CloudHvX64/DEBUG_GCC5/FV/CLOUDHV.fd \ --disk path=/path/to/disk.raw Releases -------- In edk2-stable202202, CloudHv is generated as data-only binary. Starting with edk2-stable202205, CloudHv is generated as a PVH ELF binary to reduce the amount of emulation needed from Cloud Hypervisor. For TDX, things are handled differently and PVH is not used, which is why the firmware is always generated as a data-only binary. +-------------------+----------------+ | | CloudHv | +-------------------+----------------+ | edk2-stable202202 | Data binary | +-------------------+----------------+ | edk2-stable202205 | PVH ELF binary | +-------------------+----------------+