From mboxrd@z Thu Jan 1 00:00:00 1970 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 A50EBC43217 for ; Tue, 18 Oct 2022 20:59:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230245AbiJRU7l (ORCPT ); Tue, 18 Oct 2022 16:59:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35370 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230239AbiJRU7c (ORCPT ); Tue, 18 Oct 2022 16:59:32 -0400 Received: from mail-pg1-x549.google.com (mail-pg1-x549.google.com [IPv6:2607:f8b0:4864:20::549]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CB856C1D90 for ; Tue, 18 Oct 2022 13:59:08 -0700 (PDT) Received: by mail-pg1-x549.google.com with SMTP id 126-20020a630284000000b0043942ef3ac7so8656065pgc.11 for ; Tue, 18 Oct 2022 13:59:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=L04i/bHb+FWWtwiQpLypJXSsQojGyBvdLvEayXA31so=; b=K8TIEus1IJ1GCzPG4wpF0e63hzchCvpqkrYnoE5SR8c3cXYK3qPOLgzYr1mXKd84bP r26FSAX5jQ6pYYhguRf2fYJP5kRlRJMlEfZv/oeXUo4MtbuY2naVFp3j2UX49thAuhXK BPn3l869e1Izuu9gXybVlFNrJrJH/P1+BBlewyS6e/vPIxvFfjTVUgi8D7IE3sgiMVM+ 4dOOi/sTYLYNdwtgqr1f9ZBKr9KgcXkExPgALs1sj0wTnkt92h7r8K6EsRiIG1gDqW64 w387plPBqyecazJtgFcNCrKWA9gjPJn0wNrYmBdFra4uF/owkoUzYd/yzLFjwcS0yJfe 8+LQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=L04i/bHb+FWWtwiQpLypJXSsQojGyBvdLvEayXA31so=; b=kX6X5qq1HLfYoOVUojGE6ACpiHtBzBm6yqUVQZg6hHCoWdkUu/XQ6d/22RU1wepWZz 8L2a5M11eeQBPZ9VuhT1YR2nmfUEfCng1eQJ0nYvCxhy11z/pSEJ1rBK1FW7hwARz0lY lH3cxk+je054kzbCfjOykDBt/j/69DEivbVywn+W1FH0Q8YD3QGXtaFSTmf7BsWZzdR7 igkwdSOQIjBY8sS3EX+bxjHK3NQRZtP+70GD31TzjO1qnbMJHWlUJDcbPQ27p/tdPyjl G4/tEcQja2soENyCchweCyLBkgYHv9flpfrTnlMzXlW6ldg0WBxoT47o0VxggNVDZsyH Yf6w== X-Gm-Message-State: ACrzQf3u2WOC1e5Lx3yr1o7R6OC9Vp8JuL9bOJzjKg2rotnMenl4hOsy SO7oK+DZyZ7G9ROJ1iakZdvHoYiY/jagIhe8925+T47YzWZK0/BruutWm7LFozvlBqIUe1ug8C+ bC86U2yrpqheltlG9mvGtl8SvfRvuBnV/07CSIkOD9iaZCrZ6NBRceA3pWQ== X-Google-Smtp-Source: AMsMyM5aOGzgU6VCd5MWRKzdgGZHnJqguWTWA2V6bGopVthtYOFCasR3EJ/qvKqrnohu3Bvq96H5YvTL1lo= X-Received: from pgonda1.kir.corp.google.com ([2620:15c:29:203:c89b:7f49:3437:9db8]) (user=pgonda job=sendgmr) by 2002:a17:90b:390b:b0:20d:2335:bff0 with SMTP id ob11-20020a17090b390b00b0020d2335bff0mr41157901pjb.141.1666126747247; Tue, 18 Oct 2022 13:59:07 -0700 (PDT) Date: Tue, 18 Oct 2022 13:58:45 -0700 In-Reply-To: <20221018205845.770121-1-pgonda@google.com> Message-Id: <20221018205845.770121-8-pgonda@google.com> Mime-Version: 1.0 References: <20221018205845.770121-1-pgonda@google.com> X-Mailer: git-send-email 2.38.0.413.g74048e4d9e-goog Subject: [PATCH V5 7/7] KVM: selftests: Add simple sev vm testing From: Peter Gonda To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org, marcorr@google.com, seanjc@google.com, michael.roth@amd.com, thomas.lendacky@amd.com, joro@8bytes.org, mizhang@google.com, pbonzini@redhat.com, andrew.jones@linux.dev, pgonda@google.com, vannapurve@google.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org A very simple of booting SEV guests that checks related CPUID bits. This is a stripped down version of "[PATCH v2 08/13] KVM: selftests: add SEV boot tests" from Michael but much simpler. Suggested-by: Michael Roth Signed-off-by: Peter Gonda --- tools/testing/selftests/kvm/.gitignore | 1 + tools/testing/selftests/kvm/Makefile | 1 + .../selftests/kvm/x86_64/sev_all_boot_test.c | 84 +++++++++++++++++++ 3 files changed, 86 insertions(+) create mode 100644 tools/testing/selftests/kvm/x86_64/sev_all_boot_test.c diff --git a/tools/testing/selftests/kvm/.gitignore b/tools/testing/selftests/kvm/.gitignore index 2f0d705db9db..813e7610619d 100644 --- a/tools/testing/selftests/kvm/.gitignore +++ b/tools/testing/selftests/kvm/.gitignore @@ -35,6 +35,7 @@ /x86_64/pmu_event_filter_test /x86_64/set_boot_cpu_id /x86_64/set_sregs_test +/x86_64/sev_all_boot_test /x86_64/sev_migrate_tests /x86_64/smm_test /x86_64/state_test diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile index 4f27ef70cf2b..1eb9b2aa7c22 100644 --- a/tools/testing/selftests/kvm/Makefile +++ b/tools/testing/selftests/kvm/Makefile @@ -126,6 +126,7 @@ TEST_GEN_PROGS_x86_64 += x86_64/tsc_msrs_test TEST_GEN_PROGS_x86_64 += x86_64/vmx_pmu_caps_test TEST_GEN_PROGS_x86_64 += x86_64/xen_shinfo_test TEST_GEN_PROGS_x86_64 += x86_64/xen_vmcall_test +TEST_GEN_PROGS_x86_64 += x86_64/sev_all_boot_test TEST_GEN_PROGS_x86_64 += x86_64/sev_migrate_tests TEST_GEN_PROGS_x86_64 += x86_64/amx_test TEST_GEN_PROGS_x86_64 += x86_64/max_vcpuid_cap_test diff --git a/tools/testing/selftests/kvm/x86_64/sev_all_boot_test.c b/tools/testing/selftests/kvm/x86_64/sev_all_boot_test.c new file mode 100644 index 000000000000..e9e4d7305bc1 --- /dev/null +++ b/tools/testing/selftests/kvm/x86_64/sev_all_boot_test.c @@ -0,0 +1,84 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Basic SEV boot tests. + * + */ +#include +#include +#include +#include +#include + +#include "test_util.h" +#include "kvm_util.h" +#include "processor.h" +#include "svm_util.h" +#include "linux/psp-sev.h" +#include "sev.h" + +#define NR_SYNCS 1 + +#define MSR_AMD64_SEV_BIT 1 + +static void guest_run_loop(struct kvm_vcpu *vcpu) +{ + struct ucall uc; + int i; + + for (i = 0; i <= NR_SYNCS; ++i) { + vcpu_run(vcpu); + switch (get_ucall(vcpu, &uc)) { + case UCALL_SYNC: + continue; + case UCALL_DONE: + return; + case UCALL_ABORT: + REPORT_GUEST_ASSERT(uc); + default: + TEST_FAIL("Unexpected exit: %s", + exit_reason_str(vcpu->run->exit_reason)); + } + } +} + +static void is_sev_enabled(void) +{ + uint64_t sev_status; + + GUEST_ASSERT(this_cpu_has(X86_FEATURE_SEV)); + + sev_status = rdmsr(MSR_AMD64_SEV); + GUEST_ASSERT(sev_status & 0x1); +} + +static void guest_sev_code(void) +{ + GUEST_SYNC(1); + + is_sev_enabled(); + + GUEST_DONE(); +} + +static void test_sev(void *guest_code, uint64_t policy) +{ + struct kvm_vm *vm; + struct kvm_vcpu *vcpu; + + vm = vm_sev_create_with_one_vcpu(policy, guest_code, &vcpu); + TEST_ASSERT(vm, "vm_sev_create_with_one_vcpu() failed to create VM\n"); + + guest_run_loop(vcpu); + + kvm_vm_free(vm); +} + +int main(int argc, char *argv[]) +{ + TEST_REQUIRE(is_kvm_sev_supported()); + + test_sev(guest_sev_code, SEV_POLICY_NO_DBG); + test_sev(guest_sev_code, 0); + + return 0; +} -- 2.38.0.413.g74048e4d9e-goog