From patchwork Mon Nov 21 23:40:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vipin Sharma X-Patchwork-Id: 13051713 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0A064C4332F for ; Mon, 21 Nov 2022 23:40:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231747AbiKUXkc (ORCPT ); Mon, 21 Nov 2022 18:40:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47060 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231671AbiKUXka (ORCPT ); Mon, 21 Nov 2022 18:40:30 -0500 Received: from mail-pg1-x54a.google.com (mail-pg1-x54a.google.com [IPv6:2607:f8b0:4864:20::54a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EEE91B8FB6 for ; Mon, 21 Nov 2022 15:40:29 -0800 (PST) Received: by mail-pg1-x54a.google.com with SMTP id r126-20020a632b84000000b004393806c06eso7589237pgr.4 for ; Mon, 21 Nov 2022 15:40:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=zFCg8eQyxJ3YiwHQJTueCjvpRWd24CEedZt1FgDbs2A=; b=c3e7dEfzyHyyb2tymFn9lfTQ7lWoHc+TnQZBFgbp6eHBJ/M9ppJj1ZVo0YqrNdnsgg ioCId1IFXcAJJJHKX7CVtomhNqR071qP367AZjRFHxlSnGtENoI6znHuhT+AgIpRPdDJ Qxt/GW5+d0cPRh1nlhM6opcCifMSoAVLIBUWoydKUAeqsKUUXItmNxuk2W1NmReVP9yT ajekZU0yAt5c2Iffh3jq+ftXKOzKqBcWCNQ+d5FqAjEs6tZTwXl2aaKCFAZjRwxsaq5S 8hfzg98BUZrT5TFaHuo3cXz8DK1Y9COBbhYa2cv4IXd4CFs+6mN4LM/pqBd49qAhbWEn 55BQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=zFCg8eQyxJ3YiwHQJTueCjvpRWd24CEedZt1FgDbs2A=; b=U5DKXxByYHtC6MM2NUxY9ConkoBlJ1EkDrSD9jgr0G3u7To/ScZ0lsQTvwyt9dTIuC JdoZ+SgjCaf4JjdyiNeKDxygLeYP25wbs5G5x/1NPdiU/nnwtNbbrcuMXP4c3dcC/Qxc ZLfbagFGUyK7Jp/5z8dDd5kwpXIGJKNzSrT5Nuyq3Mdq2txlJK4+fE4IWcF+dorU1qJ/ aMxgMscOgHATMv/HHvmBP5CCvGFt1INSXZH5V747tJ/NYgO92M/UnbIxIFlnoRZSjvJD Ixle4pe7SB6hiKSv0z1yude7VGslJR4PYa0+/AZoCdvb3HFlstTFJ+gqhWsCGXBCQO76 DWfQ== X-Gm-Message-State: ANoB5pnv8MnnOz3Z9uWe2I2WVtOaTDWqCpveltY0BHoeinmXEynNDsha DvOE9E0Fedi0htePVFwn2/cWfpa1dr3k X-Google-Smtp-Source: AA0mqf43ZnvPS3T3OgvIZVEV8SrAehRfExGRAijdCF4ppQi8XcXG2CrGAAiXoX2EIOpResh4wRnE+KtSrf85 X-Received: from vipin.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:479f]) (user=vipinsh job=sendgmr) by 2002:a17:90a:460b:b0:218:8a84:aeca with SMTP id w11-20020a17090a460b00b002188a84aecamr16961664pjg.63.1669074029391; Mon, 21 Nov 2022 15:40:29 -0800 (PST) Date: Mon, 21 Nov 2022 15:40:20 -0800 Mime-Version: 1.0 X-Mailer: git-send-email 2.38.1.584.g0f3c55d4c2-goog Message-ID: <20221121234026.3037083-1-vipinsh@google.com> Subject: [PATCH v2 0/6] Add Hyper-v extended hypercall support in KVM From: Vipin Sharma To: seanjc@google.com, pbonzini@redhat.com, vkuznets@redhat.com, dmatlack@google.com Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Vipin Sharma Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This patch series adds Hyper-V extended hypercall support. All hypercalls will exit to userspace if CPUID.0x40000003.EBX BIT(20) is set. v2: - Intorduced ASSERT_EXIT_REASON macro and replaced all occurences of TEST_ASSERT for vcpu exit reason. - Skip hyperv_extended_hypercalls test if extended hypercalls are not supported by the kernel. - Rebased with latest KVM queue. - Addressed all of the comments in patch 6 of v1. v1: https://lore.kernel.org/lkml/20221105045704.2315186-1-vipinsh@google.com/ RFC: https://lore.kernel.org/lkml/20221021185916.1494314-1-vipinsh@google.com/ Vipin Sharma (6): KVM: x86: hyper-v: Use common code for hypercall userspace exit KVM: x86: hyper-v: Add extended hypercall support in Hyper-v KVM: selftests: Test Hyper-V extended hypercall enablement KVM: selftests: Replace hardcoded Linux OS id with HYPERV_LINUX_OS_ID KVM: selftests: Make vCPU exit reason test assertion common. KVM: selftests: Test Hyper-V extended hypercall exit to userspace arch/x86/kvm/hyperv.c | 43 +++++---- tools/testing/selftests/kvm/.gitignore | 1 + tools/testing/selftests/kvm/Makefile | 1 + .../testing/selftests/kvm/aarch64/psci_test.c | 4 +- .../testing/selftests/kvm/include/test_util.h | 10 ++ .../selftests/kvm/include/x86_64/hyperv.h | 4 + .../selftests/kvm/include/x86_64/processor.h | 3 + .../kvm/lib/s390x/diag318_test_handler.c | 3 +- .../selftests/kvm/s390x/sync_regs_test.c | 15 +-- .../selftests/kvm/set_memory_region_test.c | 6 +- tools/testing/selftests/kvm/x86_64/amx_test.c | 8 +- .../kvm/x86_64/cr4_cpuid_sync_test.c | 8 +- .../testing/selftests/kvm/x86_64/debug_regs.c | 2 +- .../selftests/kvm/x86_64/flds_emulation.h | 5 +- .../selftests/kvm/x86_64/hyperv_clock.c | 9 +- .../selftests/kvm/x86_64/hyperv_evmcs.c | 8 +- .../kvm/x86_64/hyperv_extended_hypercalls.c | 94 +++++++++++++++++++ .../selftests/kvm/x86_64/hyperv_features.c | 23 +++-- .../testing/selftests/kvm/x86_64/hyperv_ipi.c | 6 +- .../selftests/kvm/x86_64/hyperv_svm_test.c | 7 +- .../selftests/kvm/x86_64/hyperv_tlb_flush.c | 14 +-- .../selftests/kvm/x86_64/kvm_clock_test.c | 5 +- .../selftests/kvm/x86_64/kvm_pv_test.c | 5 +- .../selftests/kvm/x86_64/monitor_mwait_test.c | 9 +- .../kvm/x86_64/nested_exceptions_test.c | 5 +- .../selftests/kvm/x86_64/platform_info_test.c | 14 +-- .../kvm/x86_64/pmu_event_filter_test.c | 6 +- tools/testing/selftests/kvm/x86_64/smm_test.c | 9 +- .../testing/selftests/kvm/x86_64/state_test.c | 8 +- .../selftests/kvm/x86_64/svm_int_ctl_test.c | 8 +- .../kvm/x86_64/svm_nested_shutdown_test.c | 7 +- .../kvm/x86_64/svm_nested_soft_inject_test.c | 6 +- .../selftests/kvm/x86_64/svm_vmcall_test.c | 6 +- .../selftests/kvm/x86_64/sync_regs_test.c | 25 +---- .../kvm/x86_64/triple_fault_event_test.c | 9 +- .../selftests/kvm/x86_64/tsc_scaling_sync.c | 6 +- .../kvm/x86_64/ucna_injection_test.c | 22 +---- .../selftests/kvm/x86_64/userspace_io_test.c | 6 +- .../kvm/x86_64/userspace_msr_exit_test.c | 22 +---- .../kvm/x86_64/vmx_apic_access_test.c | 11 +-- .../kvm/x86_64/vmx_close_while_nested_test.c | 5 +- .../selftests/kvm/x86_64/vmx_dirty_log_test.c | 7 +- .../vmx_exception_with_invalid_guest_state.c | 4 +- .../x86_64/vmx_invalid_nested_guest_state.c | 4 +- .../kvm/x86_64/vmx_nested_tsc_scaling_test.c | 6 +- .../kvm/x86_64/vmx_preemption_timer_test.c | 8 +- .../kvm/x86_64/vmx_tsc_adjust_test.c | 6 +- .../selftests/kvm/x86_64/xapic_ipi_test.c | 6 +- .../selftests/kvm/x86_64/xen_shinfo_test.c | 7 +- .../selftests/kvm/x86_64/xen_vmcall_test.c | 5 +- 50 files changed, 211 insertions(+), 310 deletions(-) create mode 100644 tools/testing/selftests/kvm/x86_64/hyperv_extended_hypercalls.c