target/s390x: Rely on unwinding in s390_cpu_virt_mem_rw
For TCG, we will always call s390_cpu_virt_mem_handle_exc, which will go through the unwinder to set ILEN. For KVM, we do not go through do_program_interrupt, so this argument is unused. Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20191001171614.8405-15-richard.henderson@linaro.org> Signed-off-by: David Hildenbrand <david@redhat.com>
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@ -510,7 +510,7 @@ int s390_cpu_virt_mem_rw(S390CPU *cpu, vaddr laddr, uint8_t ar, void *hostbuf,
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ret = translate_pages(cpu, laddr, nr_pages, pages, is_write, &tec);
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if (ret) {
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trigger_access_exception(&cpu->env, ret, ILEN_AUTO, tec);
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trigger_access_exception(&cpu->env, ret, ILEN_UNWIND, tec);
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} else if (hostbuf != NULL) {
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/* Copy data by stepping through the area page by page */
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for (i = 0; i < nr_pages; i++) {
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