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6 Commits

Author SHA1 Message Date
Andrew Jones
d0aac3320d KVM: selftests: Use consistent message for test skipping 
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2020-03-16 17:59:05 +01:00
Christian Borntraeger
6a46fcf92f selftests: KVM: s390: fix format strings for access reg test 
acrs are 32 bit and not 64 bit.

Reported-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2020-03-16 17:59:03 +01:00
Christian Borntraeger
efec8d219f selftests: kvm: make syncregs more reliable on s390 
similar to commit 2c57da356800 ("selftests: kvm: fix sync_regs_test with
newer gccs") and commit 204c91eff7 ("KVM: selftests: do not blindly
clobber registers in guest asm") we better do not rely on gcc leaving
r11 untouched.  We can write the simple ucall inline and have the guest
code completely as small assembler function.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
 2019-10-10 13:18:35 +02:00
Thomas Huth
81cb736c0c KVM: selftests: Test invalid bits in kvm_valid_regs and kvm_dirty_regs on s390x 
Now that we disallow invalid bits in kvm_valid_regs and kvm_dirty_regs
on s390x, too, we should also check this condition in the selftests.
The code has been taken from the x86-version of the sync_regs_test.

Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Link: https://lore.kernel.org/lkml/20190904085200.29021-3-thuth@redhat.com/
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
 2019-09-04 15:38:05 +02:00
Thomas Huth
f90f57b397 KVM: selftests: Implement ucall() for s390x 
On s390x, we can neither exit via PIO nor MMIO, but have to use an
instruction like DIAGNOSE. Now that ucall() is implemented, we can
use it in the sync_reg_test on s390x, too.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Link: https://lore.kernel.org/r/20190731151525.17156-3-thuth@redhat.com
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
 2019-08-02 15:44:23 +02:00
Thomas Huth
ee1563f428 KVM: selftests: Add the sync_regs test for s390x 
The test is an adaption of the same test for x86. Note that there
are some differences in the way how s390x deals with the kvm_valid_regs
in struct kvm_run, so some of the tests had to be removed. Also this
test is not using the ucall() interface on s390x yet (which would need
some work to be usable on s390x), so it simply drops out of the VM with
a diag 0x501 breakpoint instead.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190523164309.13345-8-thuth@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
 2019-06-04 14:05:38 +02:00