[Qemu-devel] [PATCH v1 0/2] RISC-V: Convert to do_transaction_failed hook

[Alistair Francis <alistair.francis@wdc.com>]

The do_unassigned_access hook has been deprecated and RISC-V is the last
user of it. Let's instead update the RISC-V implementation to use
do_transaction_failed instead.

After this series I used the 'git grep' regexes in
docs/devel/loads-stores.rst and these are the memory accesses inside
target/riscv:

monitor.c:102:        cpu_physical_memory_read(pte_addr, &pte, ptesize);

cpu_helper.c:262:        target_ulong pte = address_space_ldl(cs->as, pte_addr, attrs, &res);
cpu_helper.c:264:        target_ulong pte = address_space_ldq(cs->as, pte_addr, attrs, &res);

translate.c:782:    ctx->opcode = cpu_ldl_code(env, ctx->base.pc_next);

gdbstub.c:328:        env->fpr[n] = ldq_p(mem_buf); /* always 64-bit */

All of these look safe to me.

Palmer Dabbelt (2):
  RISC-V: Handle bus errors in the page table walker
  RISC-V: Implement cpu_do_transaction_failed

 target/riscv/cpu.c        |  2 +-
 target/riscv/cpu.h        |  7 +++++--
 target/riscv/cpu_helper.c | 23 ++++++++++++++++-------
 3 files changed, 22 insertions(+), 10 deletions(-)

-- 
2.23.0