[RFC,v5,0/8] KVMTOOL RISC-V Support

Message

Anup Patel Nov. 9, 2020, 11:36 a.m. UTC

This series adds RISC-V support for KVMTOOL and it is based on
the v10 of KVM RISC-V series. The KVM RISC-V patches are not yet
merged in Linux kernel but it will be good to get early review
for KVMTOOL RISC-V support.

The KVMTOOL RISC-V patches can be found in riscv_master branch at:
https//github.com/kvm-riscv/kvmtool.git

The KVM RISC-V patches can be found in riscv_kvm_master branch at:
https//github.com/kvm-riscv/linux.git

The QEMU RISC-V hypervisor emulation is done by Alistair and is
available in master branch at: https://git.qemu.org/git/qemu.git

Changes since v4:
 - Rebased on recent commit 90b2d3adadf218dfc6bdfdfcefe269843360223c
 - Sync-up headers with latest KVM RISC-V v15 series which is based
   on Linux-5.10-rc3

Changes since v3:
 - Rebased on recent commit 351d931f496aeb2e97b8daa44c943d8b59351d07
 - Improved kvm_cpu__show_registers() implementation

Changes since v2:
 - Support compiling KVMTOOL for both RV32 and RV64 systems using
   a multilib toolchain
 - Fix kvm_cpu__arch_init() for RV32 system

Changes since v1:
 - Use linux/sizes.h in kvm/kvm-arch.h
 - Added comment in kvm/kvm-arch.h about why PCI config space is 256M
 - Remove forward declaration of "struct kvm" from kvm/kvm-cpu-arch.h
 - Fixed placement of DTB and INITRD in guest RAM
 - Use __riscv_xlen instead of sizeof(unsigned long) in __kvm_reg_id()

Anup Patel (8):
  update_headers: Sync-up ABI headers with Linux-5.10-rc3
  riscv: Initial skeletal support
  riscv: Implement Guest/VM arch functions
  riscv: Implement Guest/VM VCPU arch functions
  riscv: Add PLIC device emulation
  riscv: Generate FDT at runtime for Guest/VM
  riscv: Handle SBI calls forwarded to user space
  riscv: Generate PCI host DT node

 INSTALL                             |   7 +-
 Makefile                            |  24 +-
 arm/aarch64/include/asm/kvm.h       |  46 ++-
 include/linux/kvm.h                 | 124 +++++-
 powerpc/include/asm/kvm.h           |   8 +
 riscv/fdt.c                         | 195 ++++++++++
 riscv/include/asm/kvm.h             | 127 +++++++
 riscv/include/kvm/barrier.h         |  14 +
 riscv/include/kvm/fdt-arch.h        |   8 +
 riscv/include/kvm/kvm-arch.h        |  85 +++++
 riscv/include/kvm/kvm-config-arch.h |  15 +
 riscv/include/kvm/kvm-cpu-arch.h    |  51 +++
 riscv/include/kvm/sbi.h             |  48 +++
 riscv/ioport.c                      |  12 +
 riscv/irq.c                         |  13 +
 riscv/kvm-cpu.c                     | 490 ++++++++++++++++++++++++
 riscv/kvm.c                         | 174 +++++++++
 riscv/pci.c                         | 109 ++++++
 riscv/plic.c                        | 563 ++++++++++++++++++++++++++++
 util/update_headers.sh              |   2 +-
 x86/include/asm/kvm.h               |  42 ++-
 21 files changed, 2141 insertions(+), 16 deletions(-)
 create mode 100644 riscv/fdt.c
 create mode 100644 riscv/include/asm/kvm.h
 create mode 100644 riscv/include/kvm/barrier.h
 create mode 100644 riscv/include/kvm/fdt-arch.h
 create mode 100644 riscv/include/kvm/kvm-arch.h
 create mode 100644 riscv/include/kvm/kvm-config-arch.h
 create mode 100644 riscv/include/kvm/kvm-cpu-arch.h
 create mode 100644 riscv/include/kvm/sbi.h
 create mode 100644 riscv/ioport.c
 create mode 100644 riscv/irq.c
 create mode 100644 riscv/kvm-cpu.c
 create mode 100644 riscv/kvm.c
 create mode 100644 riscv/pci.c
 create mode 100644 riscv/plic.c