[PATCH 0/3] riscv: set vstart_eq_zero on mark_vs_dirty

[Daniel Henrique Barboza]

Hi,

This is my shot to fix https://gitlab.com/qemu-project/qemu/-/issues/1976.

First patch ensures that every vector instruction that changes the
vector state will call mark_vs_dirty(). Second patch is a trivial
simplification.

Third patch is where the bug is solved: check if 'vstart' is zeroed and
set vstart_eq_zero accordingly. 

Patches based on alistair/riscv-to-apply.next. It can also be fetched
here:

https://gitlab.com/danielhb/qemu/-/tree/vstart_bug1976_v1


Daniel Henrique Barboza (3):
  trans_rvv.c.inc: write CSRs must call mark_vs_dirty() too
  trans_rvv.c.inc: remove redundant mark_vs_dirty() calls
  target/riscv/translate.c: set vstart_eq_zero in mark_vs_dirty()

 target/riscv/insn_trans/trans_rvv.c.inc | 28 +++++++------------------
 target/riscv/translate.c                | 22 +++++++++++++++++++
 2 files changed, 29 insertions(+), 21 deletions(-)

-- 
2.43.0