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target/s390x: Implement Early Exception Recognition

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Generate a specification exception if a reserved bit is set in the PSW
mask or if the PSW address is out of bounds dictated by the addressing
mode.

Reported-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20230315020408.384766-3-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Ilya Leoshkevich 2023-03-15 03:04:07 +01:00 • committed by Thomas Huth
parent 377dc84e2d
commit 199c42a6a1
4 changed files with 45 additions and 1 deletions
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1
target/s390x/cpu.h
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@ -292,6 +292,7 @@ extern const VMStateDescription vmstate_s390_cpu;
#define PSW_MASK_32 0x0000000080000000ULL
#define PSW_MASK_SHORT_ADDR 0x000000007fffffffULL
#define PSW_MASK_SHORT_CTRL 0xffffffff80000000ULL
#define PSW_MASK_RESERVED 0xb80800fe7fffffffULL
#undef PSW_ASC_PRIMARY
#undef PSW_ASC_ACCREG