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KVM: arm64: selftests: Change debug_version() to take ID_AA64DFR0_EL1

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Change debug_version() to take the ID_AA64DFR0_EL1 value instead of
vcpu as an argument, and change its callsite to read ID_AA64DFR0_EL1
(and pass it to debug_version()).
Subsequent patches will reuse the register value in the callsite.

No functional change intended.

Signed-off-by: Reiji Watanabe <reijiw@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221020054202.2119018-7-reijiw@google.com
This commit is contained in:
Reiji Watanabe 2022-10-19 22:41:59 -07:00 committed by Marc Zyngier
parent 948f439c9d
commit 5dd544e882
1 changed files with 4 additions and 5 deletions
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9
tools/testing/selftests/kvm/aarch64/debug-exceptions.c
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@ -337,11 +337,8 @@ static void guest_code_ss(int test_cnt)
GUEST_DONE();
}
static int debug_version(struct kvm_vcpu *vcpu)
static int debug_version(uint64_t id_aa64dfr0)
{
uint64_t id_aa64dfr0;
vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64DFR0_EL1), &id_aa64dfr0);
return FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_DEBUGVER), id_aa64dfr0);
}
@ -466,9 +463,11 @@ int main(int argc, char *argv[])
struct kvm_vm *vm;
int opt;
int ss_iteration = 10000;
uint64_t aa64dfr0;
vm = vm_create_with_one_vcpu(&vcpu, guest_code);
__TEST_REQUIRE(debug_version(vcpu) >= 6,
vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64DFR0_EL1), &aa64dfr0);
__TEST_REQUIRE(debug_version(aa64dfr0) >= 6,
"Armv8 debug architecture not supported.");
kvm_vm_free(vm);