Kernel and Virtualization Projects

Link to spreadsheet

Topic ID	Topic Name	Dependency	Company	Contact	Comments
General (00)
LK_00_001	Build farm for kernel builds		Rivos	Dylan Reid
LK_00_002	General kernel issues		SiFive	Paul Walmsley
LK_00_003	PREEMPT_RT		Microchip	Ken Unger
LK_00_004	Virtual memory debugging and enhancement		SiFive	Vincent Chen
LK_00_005	Memory Hot(Un)plug		Rivos	Bjorn Topel
LK_00_006	KASAN support		Rivos	Alexandre Ghiti
LK_00_007	KASLR support		Rivos	Alexandre Ghiti
LK_00_008	TLB flush improvement		Rivos	Alexandre Ghiti
ISA/Non-ISA Support (01)
LK_01_001	Basic ACPI support		Ventana	Sunil V L
LK_01_002	ACPI support for PLIC driver	LK_01_001	Intel	Andrei Warkentin	ACPI ECRs under review
LK_01_003	AIA drivers with DT support		Ventana	Anup Patel
LK_01_004	ACPI support for AIA drivers	LK_01_001, LK_01_003	Ventana	Sunil V L	ACPI ECRs under review
LK_01_005	Native/hosted debug support (aka HW breakpoint)		Ventana	Himanshu Chauhan	SBI 3.0 spec proposal being drafted
LK_01_006	Vector extension support		SiFive	Andy Chiu
LK_01_007	IOMMU driver with DT support		Rivos	Tomasz Jeznach
LK_01_008	ACPI RISC-V IOMMU table (RIMT) support	LK_01_001, LK_01_007	Ventana	Sunil V L	RIMT spec being drafted
LK_01_009	Supervisor Software Events (SSE)		Rivos	Clement Leger	SBI 3.0 spec proposal being drafted
LK_01_010	ACPI APEI/RAS support	LK_01_001, LK_01_009	Ventana	Himanshu Chauhan	ACPI change proposal being drafted
LK_01_011	ACPI LPI support	LK_01_001	Ventana	Sunil V L	ACPI FFH spec being drafted
LK_01_012	ACPI CPPC support	LK_01_001	Ventana	Sunil V L	ACPI FFH spec being drafted
LK_01_013	System suspend support		Ventana	Andrew Jones	SBI 2.0 spec being drafted
LK_01_014	Debug console support		Ventana	Anup Patel	SBI 2.0 spec being drafted
LK_01_015	PMU snapshot support		Rivos	Atish Patra	SBI 2.0 spec being drafted
LK_01_016	CoVE guest support		Rivos	Atish Patra or Rajnesh Kanwal	CoVE spec being drafted
LK_01_017	Svinval support		Ventana	Mayuresh Chitale
LK_01_018	Optimized bitops using Zb* extensions		Intel	Xiao Wang
LK_01_019	Zawrs support		Community	Christoph Muellner	https://lwn.net/Articles/932552/
LK_01_020	Vector crypto extension support		Community	Heiko Stuebner	https://lore.kernel.org/lkml/20230313191302.580787-5-heiko.stuebner@vrull.eu/T/
LK_01_021	Svadu support		SiFive	Yong-Xuan Wang	https://lore.kernel.org/lkml/20230129064956.143664-1-tjytimi@163.com/T/
LK_01_022	Zacas support		Rivos	Gianluca Guida	Zacas spec being drafted (fast-track)
LK_01_023	Allow user-space to directly access perf counters		Rivos	Alexandre Ghiti
LK_01_024	Supervisor Counter delegation(Smcdeleg and Sscfg)		Rivos	Atish Patra	ISA extension spec is in draft state
LK_01_025	Control Transfer Record (Smctr and Ssctr)		???	???	ISA extension spec is in draft state
LK_01_026	Instret & Cycle Privilege Mode Filtering Extension (Smcntrpmf)		Rivos	Atish Patra	ISA extension spec is in draft state
LK_01_027	Perf event discovery for counter delegation		???	???	S*cdeleg will use it.
LK_01_028	CBQRI support (Ssqosid)		Community	Drew Fustini
LK_01_029	ACPI NUMA support		Intel	Haibo Xu
LK_01_030	ACPI PPTT support		Community	JeeHeng Sia (Starfive)
LK_01_031	ACPI FFH Opregion support		Intel	Haibo Xu	ACPI FFH spec being drafted??
LK_01_032	Vector extension discovery using HWPROBE	LK_01_006	???	???
LK_01_033	Bitmanip extension discovery using HWPROBE		Rivos	Evan Green	https://lkml.org/lkml/2023/5/9/900
LK_01_034	GCM ghash using Zbc and Zbkb extensions		Community	Heiko Stuebner	https://lore.kernel.org/lkml/20230613030216.GC883@sol.localdomain/T/
LK_01_035	ACPI SPCR support		Community	JeeHeng Sia (Starfive)
LK_01_036	ACPI SMBIOS support		Intel	Haibo Xu
LK_01_037	Pointer Masking ABI (Zjpm)		SiFive	Samuel Holland
LK_01_038	KASAN support using Pointer Masking (Zjpm)		SiFive	Samuel Holland
LK_01_039	Poly1305 optimization -- both vector and non-vector		Rivos	Bjorn Topel
LK_01_40	CRC API optimization using Zbc extension		Intel	Xiao Wang
LK_01_041	copy_to-from_user optimization		Intel	Xiao Wang
KVM Kernel Support (02)
LK_02_001	KVM build and CI testing		Ventana	Anup Patel or Andrew Jones
LK_02_002	KVM AIA in-kernel irqchip		Ventana	Anup Patel
LK_02_003	KVM AIA IMSIC guest file support	LK_01_003, LK_02_002	Ventana	Anup Patel	Waiting for AIA drivers to be merged
LK_02_004	KVM AIA irq-bypass (aka Device MSI virtualization)	LK_02_003, LK_01_007	Ventana	Andrew Jones	Requires changes in IOMMU framework to support runtime changes in IMSIC guest file assigned to VCPU
LK_02_005	KVM vector extension virtualization	LK_01_006	SiFive	Andy Chiu
LK_02_006	KVM Steal time accounting		Ventana	Andrew Jones	SBI 2.0 spec being drafted
LK_02_007	KVM Debug console virtualization		Ventana	Anup Patel	SBI 2.0 spec being drafted
LK_02_008	KVM Nested acceleration		Ventana	Anup Patel	SBI 2.0 spec being drafted
LK_02_009	KVM Nested virtualization		Ventana	Anup Patel
LK_02_010	KVM PMU snapshot virtualization		Rivos	Atish Patra	SBI 2.0 spec being drafted
LK_02_011	KVM Native/hosted debug virtualization	LK_01_005	Ventana	Himanshu Chauhan	SBI 3.0 spec proposal being drafted
LK_02_012	KVM CoVE host support		Rivos	Atish Patra	CoVE spec being drafted
LK_02_013	pKVM using CoVE		Rivos	Atish Patra	CoVE spec being drafted
LK_02_014	KVM Smstateen virtualization		Ventana	Mayuresh Chitale
LK_02_015	KVM Zawrs virtualization		Ventana	Andrew Jones
LK_02_016	KVM Svnapot virtualization		Intel	Haicheng Li
LK_02_017	KVM Svadu virtualization		SiFive	Yong-Xuan Wang
LK_02_018	KVM bitmanip extension virtualization		Ventana	Anup Patel
LK_02_019	KVM vector crypto extension virtualization		Ventana	Anup Patel
LK_02_020	KVM Zacas virtualization		Rivos	Gianluca Guida	Zacas spec being drafted (fast-track)
LK_02_021	KVM Smcntrpmf virtualization		Rivos	Atish Patra	ISA extension spec is in draft state
LK_02_022	KVM Perf sampling support in guest		Rivos	Atish Patra
LK_02_023	KVM Control transfer records (Ssctr) virtualization		???	???
LK_02_024	KVM CBQRI (Ssqosid) virtualization		???	???
LK_02_025	KVM System Suspend virtualization		Ventana	Anup Patel
KVM User Space Support (03)
LK_03_001	KVMTOOL CPU feature integration		Ventana	Anup Patel or Andrew Jones
LK_03_002	KVMTOOL AIA in-kernel irqchip	LK_02_002	Ventana	Anup Patel
LK_03_003	KVMTOOL Debug console support		Ventana	Anup Patel	SBI 2.0 spec being drafted
LK_03_004	KVMTOOL VFIO + irq-bypass support	LK_02_004, LK_03_002	Ventana	Andrew Jones
LK_03_005	KVMTOOL CoVE support	LK_02_012	Rivos	Atish Patra or Rajnesh Kanwal	CoVE spec being drafted
LK_03_006	QEMU-KVM CPU feature integration		Ventana	Daniel Barboza
LK_03_007	QEMU-KVM AIA in-kernel irqchip	LK_02_002	SiFive	Yong-Xuan Wang
LK_03_008	QEMU-KVM AIA user-space irqchip		Ventana	Daniel Barboza
LK_03_009	QEMU-KVM debug console support		???	???
LK_03_010	QEMU-KVM VFIO + irq-bypass support	LK_02_004, LK_03_007	???	???
LK_03_011	QEMU-KVM and Libvirt integration		Ventana	Daniel Barboza
LK_03_012	KVM selftest improvements		Intel	Haibo Xu	Need this sooner for KVM RISC-V CI/CD. This also needs to be broken down into more fine grained topics.
LK_03_013	KVM unit test RISC-V port		Ventana	Andrew Jones	Needs to be broken down into more fine grained topics.
LK_03_014	RustVMM		Rivos	Dylan Reid
LK_03_015	CrosVM		Rivos	Dylan Reid
LK_03_016	KVMTOOL vector crypto support	LK_02_019	???	???
LK_03_017	KVMTOOL bitmanip support	LK_02_018	???	???
LK_03_018	QEMU-KVM vector crypto support	LK_02_019	???	???
LK_03_019	QEMU-KVM bitmanip support	LK_02_018	???	???
LK_03_020	KVMTOOL Smstateen support	LK_02_014	???	???
LK_03_021	QEMU-KVM Smstateen support	LK_02_014	???	???
LK_03_022	KVMTOOL Zawrs support	LK_02_015	???	???
LK_03_023	QEMU-KVM Zawrs support	LK_02_015	ISCAS	Quan Zhou
LK_03_024	KVMTOOL Svnapot support	LK_02_016	???	???
LK_03_025	QEMU-KVM Svnapot support	LK_02_016	???	???
LK_03_026	KVMTOOL Svadu support	LK_02_017	ISCAS	Quan Zhou
LK_03_027	QEMU-KVM Svadu support	LK_02_017	ISCAS	Quan Zhou
LK_03_028	KVMTOOL Zacas support	LK_02_020	BOSC	Ran WANG
LK_03_029	QEMU-KVM Zacas support	LK_02_020	BOSC	Ran WANG
LK_03_030	KVMTOOL Ssctr support	LK_02_023	ISCAS	Quan Zhou
LK_03_031	QEMU-KVM Ssctr support	LK_02_023	ISCAS	Quan Zhou
LK_03_032	KVMTOOL System Suspend support	LK_02_025	Ventana	Anup Patel
LK_03_033	QEMU-KVM System Suspend support	LK_02_025	Ventana	Daniel Barboza
Android Support (04)
LK_04_001	Android drivers		???	???	Needs to be broken down into more fine grained topics.
Xen Kernel Suppot (05)
LK_05_001	Xen RISC-V IOMMU Driver - Single Stage Address Translation
LK_05_002	Xen RISC-V IOMMU Driver - 2-Stage Address Translation
LK_05_003	Xen RISC-V Shared Memory and Event Channel Support
Uncategorized (06)
LK_05_001	Xen (Dom0less)		Microchip/SiFive	Ken Unger/Paul Walmsley	Needs to be broken down into more fine grained topics.
LK_05_002	ACRN Hypervisor		Intel	Haicheng Li
LK_05_003	Keystone		SiFive	Andy Chiu/Robin Randhawa
LK_05_004	Salus		Rivos	Dylan Reid/Andrew Bresticker
LK_05_005	LKRG		SiFive	???
LK_05_006	pKVM		SiFive/Google	???