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AJvYcCWwgiKd7W9b1gK7pmlvyGjC5sJuQJIViCvyPQHRZVStRy1EwroQY4iUv0KOmK1odV5E3sdjUEeRI7BkiWKJCgYHIqFMjFP1Zf3zEg7f X-Gm-Message-State: AOJu0Yz35kQqCRkbJX+gzPmeP4KBGT+q84eTf92zneVXXXU8R+EYp8pA 2CLnZLGZpN8ld1xD3a5zaMlR+U40544FGpyTqzlUV9glhViDAprGRq7DZ8toRFhQdt5URhsg0W6 U0A== X-Google-Smtp-Source: AGHT+IFa6Xo5alB77JWBKkmfaT2866W5+uuYd+R94MhsO58PTc0FssqvQ3Br5ekzS9Hb9uDd/sllma8cTz8= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a05:6a00:23c6:b0:6e6:c374:f104 with SMTP id g6-20020a056a0023c600b006e6c374f104mr152102pfc.0.1710458808854; Thu, 14 Mar 2024 16:26:48 -0700 (PDT) Reply-To: Sean Christopherson Date: Thu, 14 Mar 2024 16:26:24 -0700 In-Reply-To: <20240314232637.2538648-1-seanjc@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240314232637.2538648-1-seanjc@google.com> X-Mailer: git-send-email 2.44.0.291.gc1ea87d7ee-goog Message-ID: <20240314232637.2538648-6-seanjc@google.com> Subject: [PATCH 05/18] KVM: selftests: Move platform_info_test's main assert into guest code From: Sean Christopherson To: Marc Zyngier , Oliver Upton , Paolo Bonzini , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Sean Christopherson , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Ackerley Tng Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" As a first step toward gracefully handling the expected #GP on RDMSR in platform_info_test, move the test's assert on the non-faulting RDMSR result into the guest itself. This will allow using a unified flow for the host userspace side of things. Signed-off-by: Sean Christopherson --- .../selftests/kvm/x86_64/platform_info_test.c | 20 +++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/tools/testing/selftests/kvm/x86_64/platform_info_test.c b/tool= s/testing/selftests/kvm/x86_64/platform_info_test.c index 87011965dc41..cdad7e2124c8 100644 --- a/tools/testing/selftests/kvm/x86_64/platform_info_test.c +++ b/tools/testing/selftests/kvm/x86_64/platform_info_test.c @@ -29,7 +29,9 @@ static void guest_code(void) =20 for (;;) { msr_platform_info =3D rdmsr(MSR_PLATFORM_INFO); - GUEST_SYNC(msr_platform_info); + GUEST_ASSERT_EQ(msr_platform_info & MSR_PLATFORM_INFO_MAX_TURBO_RATIO, + MSR_PLATFORM_INFO_MAX_TURBO_RATIO); + GUEST_SYNC(0); asm volatile ("inc %r11"); } } @@ -42,13 +44,15 @@ static void test_msr_platform_info_enabled(struct kvm_v= cpu *vcpu) vcpu_run(vcpu); TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO); =20 - get_ucall(vcpu, &uc); - TEST_ASSERT(uc.cmd =3D=3D UCALL_SYNC, - "Received ucall other than UCALL_SYNC: %lu", uc.cmd); - TEST_ASSERT((uc.args[1] & MSR_PLATFORM_INFO_MAX_TURBO_RATIO) =3D=3D - MSR_PLATFORM_INFO_MAX_TURBO_RATIO, - "Expected MSR_PLATFORM_INFO to have max turbo ratio mask: %i.", - MSR_PLATFORM_INFO_MAX_TURBO_RATIO); + switch (get_ucall(vcpu, &uc)) { + case UCALL_SYNC: + break; + case UCALL_ABORT: + REPORT_GUEST_ASSERT(uc); + default: + TEST_FAIL("Unexpected ucall %lu", uc.cmd); + break; + } } =20 static void test_msr_platform_info_disabled(struct kvm_vcpu *vcpu) --=20 2.44.0.291.gc1ea87d7ee-goog