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s390x/tcg: make idte/ipte use the new _real mmu

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We don't wrap addresses in the mmu for the _real case, therefore the
behavior should be unchanged.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170926183318.12995-7-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 20:33:18 +02:00 committed by Cornelia Huck
parent e26131c904
commit 8eb82de91b
1 changed files with 5 additions and 4 deletions
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9
target/s390x/mem_helper.c
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@ -1875,11 +1875,11 @@ void HELPER(idte)(CPUS390XState *env, uint64_t r1, uint64_t r2, uint32_t m4)
for (i = 0; i < entries; i++) {
/* addresses are not wrapped in 24/31bit mode but table index is */
raddr = table + ((index + i) & 0x7ff) * sizeof(entry);
entry = ldq_phys(cs->as, raddr);
entry = cpu_ldq_real_ra(env, raddr, ra);
if (!(entry & _REGION_ENTRY_INV)) {
/* we are allowed to not store if already invalid */
entry |= _REGION_ENTRY_INV;
stq_phys(cs->as, raddr, entry);
cpu_stq_real_ra(env, raddr, entry, ra);
}
}
}
@ -1897,6 +1897,7 @@ void HELPER(ipte)(CPUS390XState *env, uint64_t pto, uint64_t vaddr,
uint32_t m4)
{
CPUState *cs = CPU(s390_env_get_cpu(env));
const uintptr_t ra = GETPC();
uint64_t page = vaddr & TARGET_PAGE_MASK;
uint64_t pte_addr, pte;
@ -1905,9 +1906,9 @@ void HELPER(ipte)(CPUS390XState *env, uint64_t pto, uint64_t vaddr,
pte_addr += (vaddr & VADDR_PX) >> 9;
/* Mark the page table entry as invalid */
pte = ldq_phys(cs->as, pte_addr);
pte = cpu_ldq_real_ra(env, pte_addr, ra);
pte |= _PAGE_INVALID;
stq_phys(cs->as, pte_addr, pte);
cpu_stq_real_ra(env, pte_addr, pte, ra);
/* XXX we exploit the fact that Linux passes the exact virtual
address here - it's not obliged to! */