accel/tcg: Test CPUJumpCache in tb_jmp_cache_clear_page
After commit4e4fa6c12d
("accel/tcg: Complete cpu initialization before registration"), it looks the CPUJumpCache pointer can be NULL. This causes a SIGSEV when running debug-wp-migration kvm unit test. At the first place it should be clarified why this TCG code is called with KVM acceleration. This may hide another bug. Fixes:4e4fa6c12d
("accel/tcg: Complete cpu initialization before registration") Signed-off-by: Eric Auger <eric.auger@redhat.com> Message-Id: <20230203171510.2867451-1-eric.auger@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
parent
579510e196
commit
99ab4d500a
|
@ -100,9 +100,14 @@ static void tlb_window_reset(CPUTLBDesc *desc, int64_t ns,
|
|||
|
||||
static void tb_jmp_cache_clear_page(CPUState *cpu, target_ulong page_addr)
|
||||
{
|
||||
int i, i0 = tb_jmp_cache_hash_page(page_addr);
|
||||
CPUJumpCache *jc = cpu->tb_jmp_cache;
|
||||
int i, i0;
|
||||
|
||||
if (unlikely(!jc)) {
|
||||
return;
|
||||
}
|
||||
|
||||
i0 = tb_jmp_cache_hash_page(page_addr);
|
||||
for (i = 0; i < TB_JMP_PAGE_SIZE; i++) {
|
||||
qatomic_set(&jc->array[i0 + i].tb, NULL);
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue