accel/tcg: Add stub for probe_access()

qemu with hax to log dma reads & writes jcs.org/2018/11/12/vfio

The TCG helpers were added in b92e5a22ec3 in softmmu_template.h.
probe_write() was added in there in 3b4afc9e75a to be moved out
to accel/tcg/cputlb.c in 3b08f0a9254, and was later refactored
as probe_access() in c25c283df0f.
Since it is a TCG specific helper, add a stub to avoid failures
when building without TCG, such:

target/arm/helper.o: In function `probe_read':
include/exec/exec-all.h:362: undefined reference to `probe_access'

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

authored by

Philippe Mathieu-Daudé and committed by

Paolo Bonzini 5 years ago bb321b29 96df0fdd

1 changed file

expand all

accel

stubs

tcg-stub.c

accel/stubs/tcg-stub.c

··· 22 22 void tlb_set_dirty(CPUState *cpu, target_ulong vaddr) 23 23 { 24 24 } 25 + 26 + void *probe_access(CPUArchState *env, target_ulong addr, int size, 27 + MMUAccessType access_type, int mmu_idx, uintptr_t retaddr) 28 + { 29 + /* Handled by hardware accelerator. */ 30 + g_assert_not_reached(); 31 + }