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s390x/tcg: fix checking for invalid memory check 

It should have been a >=, but let's directly perform a proper access
check to also be able to deal with hotplugged memory later.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170926183318.12995-2-david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2017-09-26 20:33:13 +02:00 committed by Cornelia Huck
parent 93973f8f15
commit 0bd695a960
1 changed files with 3 additions and 1 deletions
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4
target/s390x/excp_helper.c
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@ -26,6 +26,7 @@
#include "exec/exec-all.h"
#include "exec/cpu_ldst.h"
#include "hw/s390x/ioinst.h"
#include "exec/address-spaces.h"
#ifndef CONFIG_USER_ONLY
#include "sysemu/sysemu.h"
#endif
@ -108,7 +109,8 @@ int s390_cpu_handle_mmu_fault(CPUState *cs, vaddr orig_vaddr,
}
/* check out of RAM access */
if (raddr > ram_size) {
if (!address_space_access_valid(&address_space_memory, raddr,
TARGET_PAGE_SIZE, rw)) {
DPRINTF("%s: raddr %" PRIx64 " > ram_size %" PRIx64 "\n", __func__,
(uint64_t)raddr, (uint64_t)ram_size);
trigger_pgm_exception(env, PGM_ADDRESSING, ILEN_AUTO);