[PATCH v6 00/26] add LVZ support for TCG

[SignKirigami <prcups@krgm.moe>]

This patch implements Loongson VirtualiZation (LVZ) extension support
for LoongArch's TCG target. With this patch, it is now possible to start
a nested KVM-accelerated virtual machine on a TCG-emulated virtual machine.

SignKirigami (26):
  target/loongarch: add get_sys() helper
  target/loongarch: add LVZ feature switcher
  target/loongarch: add LVZ CSR metadata
  target/loongarch: add vm level 1 definition
  target/loongarch: add definition about guest mmu_idx
  target/loongarch: move timer initialization to
    loongarh_cpu_realizefn()
  target/loongarch: add LVZ guest interrupt state
  target/loongarch: add LVZ guest timer
  target/loongarch: handle return to guest in ertn
  target/loongarch: handle LVZ exception and vm_exit
  target/loongarch: add host TLBRet and handle
  target/loongarch: add gid management functions
  target/loongarch: add LVZ parameters to TLB functions
  target/loongarch: add LVZ to TLB functions
  target/loongarch: add 2-level address mapping to
    loongarch_cpu_tlb_fill()
  target/loongarch: add LVZ to invtlb 0x0-0x6
  target/loongarch: add LVZ to invtlb 0xa-0xe
  target/loongarch: add LVZ to ptw
  target/loongarch: add LVZ migration state
  target/loongarch: add LVZ to CSR operations
  target/loongarch: add LVZ to CSR helpers
  target/loongarch: add guest CSR operations
  target/loongarch: add LVZ CSRs
  target/loongarch: translate LVZ guest traps and HVC
  target/loongarch: initialize CSR related to LVZ
  target/loongarch: exit to vm level 0 for fpd, sxd and asxd of vm level
    0

 target/loongarch/cpu-csr.h                    |  38 ++
 target/loongarch/cpu-mmu.h                    |  31 +-
 target/loongarch/cpu.c                        | 117 +++++--
 target/loongarch/cpu.h                        |  90 ++++-
 target/loongarch/cpu_helper.c                 |  52 +--
 target/loongarch/csr.c                        | 102 +++---
 target/loongarch/csr.h                        |   1 +
 target/loongarch/disas.c                      |   9 +
 target/loongarch/insns.decode                 |   7 +
 target/loongarch/internals.h                  |   4 +-
 target/loongarch/machine.c                    | 139 ++++++++
 target/loongarch/tcg/csr_helper.c             | 131 +++++--
 target/loongarch/tcg/helper.h                 |  37 +-
 .../tcg/insn_trans/trans_extra.c.inc          |   5 +
 .../tcg/insn_trans/trans_privileged.c.inc     | 212 ++++++++++--
 target/loongarch/tcg/op_helper.c              |  37 ++
 target/loongarch/tcg/tcg_cpu.c                |  89 +++--
 target/loongarch/tcg/tlb_helper.c             | 324 ++++++++++++------
 target/loongarch/tcg/translate.c              |   3 +
 target/loongarch/translate.h                  |   1 +
 20 files changed, 1107 insertions(+), 322 deletions(-)


base-commit: 49559567804523cb28cad002aa8e97f444e23ad7
-- 
2.56.0