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target/s390x: Use unwind data for helper_testblock

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Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2017-05-22 12:53:32 -07:00
parent 75d6240c59
commit aef2b01a50
2 changed files with 3 additions and 1 deletions
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3
target/s390x/mem_helper.c
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@ -939,6 +939,7 @@ void HELPER(stctl)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3)
uint32_t HELPER(testblock)(CPUS390XState *env, uint64_t real_addr)
{
uintptr_t ra = GETPC();
CPUState *cs = CPU(s390_env_get_cpu(env));
uint64_t abs_addr;
int i;
@ -947,12 +948,14 @@ uint32_t HELPER(testblock)(CPUS390XState *env, uint64_t real_addr)
abs_addr = mmu_real2abs(env, real_addr) & TARGET_PAGE_MASK;
if (!address_space_access_valid(&address_space_memory, abs_addr,
TARGET_PAGE_SIZE, true)) {
cpu_restore_state(cs, ra);
program_interrupt(env, PGM_ADDRESSING, 4);
return 1;
}
/* Check low-address protection */
if ((env->cregs[0] & CR0_LOWPROT) && real_addr < 0x2000) {
cpu_restore_state(cs, ra);
program_interrupt(env, PGM_PROTECTION, 4);
return 1;
}

1
target/s390x/translate.c
View File

@ -4047,7 +4047,6 @@ static ExitStatus op_tcxb(DisasContext *s, DisasOps *o)
static ExitStatus op_testblock(DisasContext *s, DisasOps *o)
{
check_privileged(s);
potential_page_fault(s);
gen_helper_testblock(cc_op, cpu_env, o->in2);
set_cc_static(s);
return NO_EXIT;