[PATCH v2 0/5] target/riscv: Fix no-TCG build

[Zephyr Li <fritchleybohrer@gmail.com>]

This series fixes the riscv64-softmmu --disable-tcg build by keeping
TCG-only files and code out of no-TCG builds, while keeping common
helpers available for non-TCG configurations.

The first patches move common helpers out of TCG-only helper files. The
later patches reject x-misa-w when TCG is unavailable, provide a no-TCG
stub for riscv_cpu_validate_set_extensions(), and build RISC-V TCG-only
sources only when TCG is enabled.

Changes in v2:
- Split the original patch into smaller logical patches.
- Drop the unused tcg/tcg.h include.
- Add a no-TCG stub for riscv_cpu_validate_set_extensions().
- Keep x-misa-w rejected during CPU realize when TCG is unavailable.

Testing:
- riscv64-softmmu --enable-kvm --disable-tcg --enable-debug builds
  successfully.
- riscv64-softmmu --enable-debug builds successfully.
- qemu-system-riscv64 -M virt,accel=qtest -cpu rv64,x-misa-w=true \
  -S -nographic reports "x-misa-w requires TCG".

Zephyr Li (5):
  target/riscv: Remove unused tcg/tcg.h include
  target/riscv: Move fflags helpers to common code
  target/riscv: Move riscv_raise_exception() to common code
  target/riscv: Reject x-misa-w without TCG
  target/riscv: Build TCG-only code only with TCG

 target/riscv/cpu.c         |  8 +++++-
 target/riscv/cpu_helper.c  | 53 ++++++++++++++++++++++++++++++++++++++
 target/riscv/csr.c         | 11 ++++++--
 target/riscv/fpu_helper.c  | 27 -------------------
 target/riscv/meson.build   |  9 ++++---
 target/riscv/op_helper.c   | 15 -----------
 target/riscv/tcg/tcg-cpu.h | 10 +++++++
 7 files changed, 85 insertions(+), 48 deletions(-)

-- 
2.43.0