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s390x/tcg: MVPG: Properly wrap the addresses 

We have to mask of any unused bits. While at it, document what exactly is
missing.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
This commit is contained in:
David Hildenbrand 2019-09-03 15:09:47 +02:00
parent bf349f1a0d
commit a3910396ba
1 changed files with 9 additions and 2 deletions
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11
target/s390x/mem_helper.c
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@ -679,8 +679,15 @@ uint32_t HELPER(mvpg)(CPUS390XState *env, uint64_t r0, uint64_t r1, uint64_t r2)
s390_program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO, GETPC());
}
/* ??? missing r0 handling, which includes access keys, but more
importantly optional suppression of the exception! */
r1 = wrap_address(env, r1 & TARGET_PAGE_MASK);
r2 = wrap_address(env, r2 & TARGET_PAGE_MASK);
/*
* TODO:
* - Access key handling
* - CC-option with surpression of page-translation exceptions
* - Store r1/r2 register identifiers at real location 162
*/
fast_memmove(env, r1, r2, TARGET_PAGE_SIZE, GETPC());
return 0; /* data moved */
}