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Fri, 04 Nov 2022 21:57:14 -0700 (PDT) Date: Fri, 4 Nov 2022 21:57:01 -0700 In-Reply-To: <20221105045704.2315186-1-vipinsh@google.com> Mime-Version: 1.0 References: <20221105045704.2315186-1-vipinsh@google.com> X-Mailer: git-send-email 2.38.1.273.g43a17bfeac-goog Message-ID: <20221105045704.2315186-4-vipinsh@google.com> Subject: [PATCH 3/6] KVM: selftests: Test Hyper-V extended hypercall enablement From: Vipin Sharma To: seanjc@google.com, pbonzini@redhat.com, vkuznets@redhat.com Cc: dmatlack@google.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Vipin Sharma Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Test Extended hypercall CPUID enablement Signed-off-by: Vipin Sharma --- tools/testing/selftests/kvm/include/x86_64/hyperv.h | 4 ++++ tools/testing/selftests/kvm/x86_64/hyperv_features.c | 9 +++++++++ 2 files changed, 13 insertions(+) diff --git a/tools/testing/selftests/kvm/include/x86_64/hyperv.h b/tools/te= sting/selftests/kvm/include/x86_64/hyperv.h index b66910702c0a..075fd29071a6 100644 --- a/tools/testing/selftests/kvm/include/x86_64/hyperv.h +++ b/tools/testing/selftests/kvm/include/x86_64/hyperv.h @@ -110,6 +110,7 @@ #define HV_ACCESS_STATS BIT(8) #define HV_DEBUGGING BIT(11) #define HV_CPU_MANAGEMENT BIT(12) +#define HV_ENABLE_EXTENDED_HYPERCALLS BIT(20) #define HV_ISOLATION BIT(22) =20 /* HYPERV_CPUID_FEATURES.EDX */ @@ -164,6 +165,9 @@ #define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE 0x00af #define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_LIST 0x00b0 =20 +/* Extended hypercalls */ +#define HV_EXT_CALL_QUERY_CAPABILITIES 0x8001 + #define HV_FLUSH_ALL_PROCESSORS BIT(0) #define HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES BIT(1) #define HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY BIT(2) diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_features.c b/tools/t= esting/selftests/kvm/x86_64/hyperv_features.c index 05b32e550a80..6b443ce456b6 100644 --- a/tools/testing/selftests/kvm/x86_64/hyperv_features.c +++ b/tools/testing/selftests/kvm/x86_64/hyperv_features.c @@ -602,6 +602,15 @@ static void guest_test_hcalls_access(void) hcall->expect =3D HV_STATUS_SUCCESS; break; case 19: + hcall->control =3D HV_EXT_CALL_QUERY_CAPABILITIES; + hcall->expect =3D HV_STATUS_ACCESS_DENIED; + break; + case 20: + feat->ebx |=3D HV_ENABLE_EXTENDED_HYPERCALLS; + hcall->control =3D HV_EXT_CALL_QUERY_CAPABILITIES | HV_HYPERCALL_FAST_B= IT; + hcall->expect =3D HV_STATUS_INVALID_PARAMETER; + break; + case 21: kvm_vm_free(vm); return; } --=20 2.38.1.273.g43a17bfeac-goog