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8 Commits

Author SHA1 Message Date
Sean Christopherson
7ce7f8e754 KVM: selftests: Rip out old, param-based guest assert macros 
Drop the param-based guest assert macros and enable the printf versions
for all selftests.  Note!  This change can affect tests even if they
don't use directly use guest asserts!  E.g. via library code, or due to
the compiler making different optimization decisions.

Link: https://lore.kernel.org/r/20230729003643.1053367-33-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
 2023-08-02 14:43:16 -07:00
Sean Christopherson
417bfd0c82 KVM: selftests: Convert the x86 userspace I/O test to printf guest assert 
Convert x86's userspace I/O test to use printf-based guest asserts.

Link: https://lore.kernel.org/r/20230729003643.1053367-30-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
 2023-08-02 14:43:14 -07:00
Vipin Sharma
c96f57b080 KVM: selftests: Make vCPU exit reason test assertion common 
Make TEST_ASSERT_KVM_EXIT_REASON() macro and replace all exit reason
test assert statements with it.

No functional changes intended.

Signed-off-by: Vipin Sharma <vipinsh@google.com>
Reviewed-by: David Matlack <dmatlack@google.com>
Message-Id: <20230204014547.583711-2-vipinsh@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2023-03-14 10:20:09 -04:00
Vishal Annapurve
197ebb713a KVM: selftests: move common startup logic to kvm_util.c 
Consolidate common startup logic in one place by implementing a single
setup function with __attribute((constructor)) for all selftests within
kvm_util.c.

This allows moving logic like:
        /* Tell stdout not to buffer its content */
        setbuf(stdout, NULL);
to a single file for all selftests.

This will also allow any required setup at entry in future to be done in
common main function.

Link: https://lore.kernel.org/lkml/Ywa9T+jKUpaHLu%2Fl@google.com
Suggested-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Andrew Jones <andrew.jones@linux.dev>
Reviewed-by: Peter Gonda <pgonda@google.com>
Signed-off-by: Vishal Annapurve <vannapurve@google.com>
Link: https://lore.kernel.org/r/20221115213845.3348210-2-vannapurve@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
 2022-11-16 16:58:56 -08:00
Colton Lewis
594a1c271c KVM: selftests: Fix filename reporting in guest asserts 
Fix filename reporting in guest asserts by ensuring the GUEST_ASSERT
macro records __FILE__ and substituting REPORT_GUEST_ASSERT for many
repetitive calls to TEST_FAIL.

Previously filename was reported by using __FILE__ directly in the
selftest, wrongly assuming it would always be the same as where the
assertion failed.

Signed-off-by: Colton Lewis <coltonlewis@google.com>
Reported-by: Ricardo Koller <ricarkol@google.com>
Fixes: 4e18bccc2e
Link: https://lore.kernel.org/r/20220615193116.806312-5-coltonlewis@google.com
[sean: convert more TEST_FAIL => REPORT_GUEST_ASSERT instances]
Signed-off-by: Sean Christopherson <seanjc@google.com>
 2022-07-13 18:14:08 -07:00
Sean Christopherson
768e9a6185 KVM: selftests: Purge vm+vcpu_id == vcpu silliness 
Take a vCPU directly instead of a VM+vcpu pair in all vCPU-scoped helpers
and ioctls.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2022-06-11 11:47:22 -04:00
Sean Christopherson
ada1bf4d65 KVM: selftests: Convert userspace_io_test away from VCPU_ID 
Convert userspace_io_test to use vm_create_with_one_vcpu() and pass around
a 'struct kvm_vcpu' object instead of using a global VCPU_ID.  Note,
this is a "functional" change in the sense that the test now creates a vCPU
with vcpu_id==0 instead of vcpu_id==1.  The non-zero VCPU_ID was 100%
arbitrary and added little to no validation coverage.  If testing non-zero
vCPU IDs is desirable for generic tests, that can be done in the future by
tweaking the VM creation helpers.

Opportunistically use vcpu_run() instead of _vcpu_run() with an open
coded assert that KVM_RUN succeeded.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2022-06-11 11:46:56 -04:00
Sean Christopherson
10e7a099bf selftests: KVM: Add test to verify KVM doesn't explode on "bad" I/O 
Add an x86 selftest to verify that KVM doesn't WARN or otherwise explode
if userspace modifies RCX during a userspace exit to handle string I/O.
This is a regression test for a user-triggerable WARN introduced by
commit 3b27de2718 ("KVM: x86: split the two parts of emulator_pio_in").

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211025201311.1881846-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2021-12-10 09:38:02 -05:00