[v1 0/4]riscv/binutils support Hypervisor Extension

[Vineet Gupta]

Hi,

This patchset adds support for Hypervisor Extension ratified recently
[1].

Changes since RFC [2]:

  - Drop support for single-letter arch string "h".
    'H' extension is currently supported unconditionally so keep status quo.

  - H-ext support in Priv spec 1.9.1 dropped, broken out as seperate patch.

Please review/comment !

Thx,
-Vineet

[1] https://wiki.riscv.org/display/TECH/Recently+Ratified+Extensions
[2] https://sourceware.org/pipermail/binutils/2021-December/118914.html

Vineet Gupta (4):
  RISC-V: Hypervisor ext: drop Privileged Spec 1.9.1
    implementation/tests
  RISC-V: Hypervisor ext: support Privileged Spec 1.12
  RISC-V: Hypervisor Ext: Add tests
  RISC-V: fix a comment for adding CSR entry and annotate switch-break

 bfd/cpu-riscv.c                               |   1 +
 bfd/cpu-riscv.h                               |   1 +
 bfd/elfxx-riscv.c                             |   6 +
 gas/config/tc-riscv.c                         |  10 +-
 gas/testsuite/gas/riscv/csr-dw-regnums.d      |  10 --
 gas/testsuite/gas/riscv/csr-dw-regnums.s      |  10 --
 gas/testsuite/gas/riscv/h-ext-32.d            |  74 ++++++++++++
 gas/testsuite/gas/riscv/h-ext-32.s            |  64 ++++++++++
 gas/testsuite/gas/riscv/h-ext-64.d            |  73 ++++++++++++
 gas/testsuite/gas/riscv/h-ext-64.s            |  63 ++++++++++
 .../gas/riscv/priv-reg-fail-read-only-01.s    |  10 --
 .../gas/riscv/priv-reg-fail-version-1p10.l    |  10 --
 .../gas/riscv/priv-reg-fail-version-1p11.l    |  10 --
 .../gas/riscv/priv-reg-version-1p10.d         |  10 --
 .../gas/riscv/priv-reg-version-1p11.d         |  10 --
 .../gas/riscv/priv-reg-version-1p9p1.d        |  10 --
 gas/testsuite/gas/riscv/priv-reg.s            |  10 --
 gas/testsuite/gas/riscv/svinval-and-h.d       |  15 +++
 gas/testsuite/gas/riscv/svinval-and-h.s       |   5 +
 include/opcode/riscv-opc.h                    | 110 ++++++++++++++----
 include/opcode/riscv.h                        |   2 +
 opcodes/riscv-opc.c                           |  26 ++++-
 22 files changed, 423 insertions(+), 117 deletions(-)
 create mode 100644 gas/testsuite/gas/riscv/h-ext-32.d
 create mode 100644 gas/testsuite/gas/riscv/h-ext-32.s
 create mode 100644 gas/testsuite/gas/riscv/h-ext-64.d
 create mode 100644 gas/testsuite/gas/riscv/h-ext-64.s
 create mode 100644 gas/testsuite/gas/riscv/svinval-and-h.d
 create mode 100644 gas/testsuite/gas/riscv/svinval-and-h.s

-- 
2.30.2