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KVM: selftests: Define literal to asm constraint in aarch64 as unsigned long

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Define a literal '0' asm input constraint to aarch64/page_fault_test's
guest_cas() as an unsigned long to make clang happy.

  tools/testing/selftests/kvm/aarch64/page_fault_test.c:120:16: error:
    value size does not match register size specified by the constraint
    and modifier [-Werror,-Wasm-operand-widths]
                       :: "r" (0), "r" (TEST_DATA), "r" (guest_test_memory));
                               ^
  tools/testing/selftests/kvm/aarch64/page_fault_test.c:119:15: note:
    use constraint modifier "w"
                       "casal %0, %1, [%2]\n"
                              ^~
                              %w0

Fixes: 35c5810157 ("KVM: selftests: aarch64: Add aarch64/page_fault_test")
Cc: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221213001653.3852042-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2022-12-13 00:16:40 +00:00 committed by Paolo Bonzini
parent 50a9ac2598
commit e779fd53b4
1 changed files with 1 additions and 1 deletions
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2
tools/testing/selftests/kvm/aarch64/page_fault_test.c
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@ -117,7 +117,7 @@ static void guest_cas(void)
GUEST_ASSERT(guest_check_lse());
asm volatile(".arch_extension lse\n"
"casal %0, %1, [%2]\n"
:: "r" (0), "r" (TEST_DATA), "r" (guest_test_memory));
:: "r" (0ul), "r" (TEST_DATA), "r" (guest_test_memory));
val = READ_ONCE(*guest_test_memory);
GUEST_ASSERT_EQ(val, TEST_DATA);
}