1H24 Priorities Update (08/23/2023)

Aug 24, 2023

Contents:

1 Work Group-Identified Priorities
- 1.1 Developer Infrastructure
- 1.2 System Libraries
- 1.3 Simulators/Emulators
- 1.4 Language Runtimes
- 1.5 Kernel and Virtualization
- 1.6 Firmware
- 1.7 Distro Integration
- 1.8 Debug and Profiling
- 1.9 Compilers and Toolchains
2 Specification Dependencies

Work Group-Identified Priorities

Developer Infrastructure

No 1H24 priorities identified yet.

System Libraries

Lead is @Nathan Egge (Google).

No 1H24 priorities identified yet.

Simulators/Emulators

Lead is @Daniel Barboza (Ventana).

RVV performance enhancements
Vector TCG Host-Native implementation
Cleanup: remove prematurely merged non-standards
SXL32 support
QEMU RISC-V TCG target support
Vendor extension framework support

Language Runtimes

Lead is @Ludovic Henry (Rivos).

Java
- Build farm for Adoptium
- Distribute Java 11, 17 and Java 21 in Adoptium
- Improve support for Vector extension in OpenJDK
- Improve support for Vector Crypto extension in OpenJDK
Go
- Support for Vector and Vector Crypto extensions
.NET
- RISC-V extension support (Vector, Crypto) and optimization (GC, stubs), ready for commercial products

Kernel and Virtualization

Lead is @Anup Patel (Ventana).

Kernel
- ISA extensions
  - Support for Z* and S* extensions included in RVA23 profile (incl. HWPROBE discovery)
- ACPI improvements
  - ACPI RISC-V IOMMU Table (RIMT) support
  - ACPI support for IOMMU driver
  - ACPI LPI support
  - ACPI CPPC support
  - ACPI RAS support (incl. APEI and SBI SSE notifications)
  - ACPI PPTT support
- SBI v2.0
  - Steal time support
  - System suspend support
  - Debug console support
  - PMU snapshot support
- SBI v3.0 (Proof-of-concept efforts)
  - Supervisor software events (SSE) support
KVM
- KVM selftests
- Host nested acceleration (Defined by SBI v2.0)
- Nested virtualization (trap-n-emulate H-extension)
- ISA extensions
  - Support for Z* and S* extensions included in RVA23 profile (incl. ONE_REG discovery)
- Virtualize SBI v2.0 support
  - Steat time support for Guest
  - Debug console support for Guest
  - PMU snapshot support for Guest
  - Nested acceleration for Guest
- Host CoVE support (Proof-of-concept efforts)
- Virtualize SBI v3.0 support (Proof-of-concept efforts)
  - Supervisor software events support for Guest

Firmware

Lead is @Sunil V L (Ventana).

EDK2
- Build Size reduction
- FdtBusDxe
- Backtrace support
- UefiPayloadPkg
- StandaloneMMPkg
- DynamicTablesPkg
- EasyDriversDxe
- CompilerIntrinsic Libs
- Firmware First RAS handling

OpenSBI
- RAS/SSE
- Sparse HartID support
- Native/hosted debug support
TF-M Secure Bootloader

Distro Integration

Lead is @Brian Harrington (Red Hat).

No 1H24 projects identified yet.

Debug and Profiling

Lead is @Fei Wu (Intel).

No 1H24 projects identified yet.

Compilers and Toolchains

Lead is @Jeff Law (Ventana).

LLVM Enablement

GCC Enablement

No projects are requesting RISE resources at this time.

Specification Dependencies

None