From: Frank Chang <frank.chang@sifive.com>

MISA.C and MISA.X should be set when the following extensions are
selected:

MISA.C:
  * Zca and not F.
  * Zca, Zcf and F (but not D) is specified (RV32 only).
  * Zca, Zcf and Zcd if D is specified (RV32 only).
  * Zca, Zcd if D is specified (RV64 only)

MISA.X:
  * When there are any non-standard extensions enabled.

This patchset sets MISA.[C|X] bits based on the selected extensions.

Changelog:

  * v2: Fix the missing parentheses bug.

Frank Chang (2):
  target/riscv: Update MISA.C for Zc* extensions
  target/riscv: Update MISA.X for non-standard extensions

 target/riscv/cpu.h         |  1 +
 target/riscv/tcg/tcg-cpu.c | 47 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+)

--
2.43.0