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 A551EC3527E for ; Wed, 4 May 2022 22:56:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1379917AbiEDW7d (ORCPT ); Wed, 4 May 2022 18:59:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40762 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1379258AbiEDWxh (ORCPT ); Wed, 4 May 2022 18:53:37 -0400 Received: from mail-pj1-x104a.google.com (mail-pj1-x104a.google.com [IPv6:2607:f8b0:4864:20::104a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F004153E14 for ; Wed, 4 May 2022 15:49:54 -0700 (PDT) Received: by mail-pj1-x104a.google.com with SMTP id g11-20020a17090a640b00b001dca0c276e7so1314850pjj.4 for ; Wed, 04 May 2022 15:49:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=reply-to:date:in-reply-to:message-id:mime-version:references :subject:from:to:cc; bh=dsqd2BC0he8cu3KMlN3fGhXr8Guk3V++LSAF0rvZtfQ=; b=pmSzKDfTWyW5D0ejUbtOpzAu5j7OkBtuF8fIUi0PswzOGWlXJYJ4pUwpHHAAr1P+XH rL8AHdGmlEeoJGRDagq6c6NMEzln75pR2TGRwOuZk5qPF10RnH5A5dluP0pn9CCPdvwv 8Din/NAEgPbDmDxyKBLYxMnGYiRKYUqbo7f2S/Rr1R7zc6ku7orxluaZg/96o7pCDrPv lV0TQMeXbDL5pr+IHswjr/PUN7rDJPv85sHCGLMqZEh6fQExh84LHGM/Y8qWV/wB2TB+ 1mhvHBSaVJpj06d6Cp187gbyQLyHOgcjqbGwgg8ihi3nAiJSybDiAJ9utdP8P511lIEQ doWQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:reply-to:date:in-reply-to:message-id :mime-version:references:subject:from:to:cc; bh=dsqd2BC0he8cu3KMlN3fGhXr8Guk3V++LSAF0rvZtfQ=; b=kMgp4/H4+Cwc4iPXApcUF8oBT4bXNVdiCX55PnN+NC/j9r3gAXdBze8LeMkF9HyU7b 3hRkzAnlnV3Zt11yU+/gJhTvnGpGVAT9aT+UK8rxoTn45aY7/H3v9QdBkOGHgOuVqx6v wQElc44fHIeSE6I+LifvuSK/om7cyC/iOfvnWk6sO3fWMfFR37s1scEgOhRWmeCj6Geg nWJ3iqoysJScqI0ByuZ7UPFcwzj0a59OCPznV4136wSS/z8aAQBS2OSQqR/zglS0H2+W FADBXwWs1+EoqprE2WveHD/UHSwi7Qkn+L02X1XaXyQwM8TAuRjDWdOOcP3Z6YN6KEs8 3Kiw== X-Gm-Message-State: AOAM533xOYEZykkGc6aVtUyP/VbVvqngBeQVHVKbR1A721tNAcZYunOL GdMASLQvQjlRVAMjeqmJxlxn2r5PScA= X-Google-Smtp-Source: ABdhPJyr59EMatyWhqepevXEWefEjBJYSvGWE9KtZe3WD/Mr8qKZTtnUx6xIQ634iaTVd0I9Y2gUYjfSa/4= X-Received: from seanjc.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:3e5]) (user=seanjc job=sendgmr) by 2002:a17:902:cf0b:b0:15a:2681:9180 with SMTP id i11-20020a170902cf0b00b0015a26819180mr24015658plg.137.1651704594480; Wed, 04 May 2022 15:49:54 -0700 (PDT) Reply-To: Sean Christopherson Date: Wed, 4 May 2022 22:47:19 +0000 In-Reply-To: <20220504224914.1654036-1-seanjc@google.com> Message-Id: <20220504224914.1654036-14-seanjc@google.com> Mime-Version: 1.0 References: <20220504224914.1654036-1-seanjc@google.com> X-Mailer: git-send-email 2.36.0.464.gb9c8b46e94-goog Subject: [PATCH 013/128] KVM: selftests: Add vcpu_get() to retrieve and assert on vCPU existence From: Sean Christopherson To: Paolo Bonzini Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Vitaly Kuznetsov , Andrew Jones , David Matlack , Ben Gardon , Oliver Upton , Sean Christopherson Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add vcpu_get() to wrap vcpu_find() and deduplicate a pile of code that asserts the requested vCPU exists. Signed-off-by: Sean Christopherson --- tools/testing/selftests/kvm/lib/kvm_util.c | 56 ++++++------------- .../selftests/kvm/lib/kvm_util_internal.h | 2 +- .../selftests/kvm/lib/s390x/processor.c | 5 +- .../selftests/kvm/lib/x86_64/processor.c | 4 +- 4 files changed, 20 insertions(+), 47 deletions(-) diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c index 73123b9d9625..940decfaa633 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util.c +++ b/tools/testing/selftests/kvm/lib/kvm_util.c @@ -561,23 +561,7 @@ kvm_userspace_memory_region_find(struct kvm_vm *vm, uint64_t start, return ®ion->region; } -/* - * VCPU Find - * - * Input Args: - * vm - Virtual Machine - * vcpuid - VCPU ID - * - * Output Args: None - * - * Return: - * Pointer to VCPU structure - * - * Locates a vcpu structure that describes the VCPU specified by vcpuid and - * returns a pointer to it. Returns NULL if the VM doesn't contain a VCPU - * for the specified vcpuid. - */ -struct vcpu *vcpu_find(struct kvm_vm *vm, uint32_t vcpuid) +static struct vcpu *vcpu_find(struct kvm_vm *vm, uint32_t vcpuid) { struct vcpu *vcpu; @@ -589,6 +573,14 @@ struct vcpu *vcpu_find(struct kvm_vm *vm, uint32_t vcpuid) return NULL; } +struct vcpu *vcpu_get(struct kvm_vm *vm, uint32_t vcpuid) +{ + struct vcpu *vcpu = vcpu_find(vm, vcpuid); + + TEST_ASSERT(vcpu, "vCPU %d does not exist", vcpuid); + return vcpu; +} + /* * VM VCPU Remove * @@ -1568,8 +1560,7 @@ void vm_create_irqchip(struct kvm_vm *vm) */ struct kvm_run *vcpu_state(struct kvm_vm *vm, uint32_t vcpuid) { - struct vcpu *vcpu = vcpu_find(vm, vcpuid); - TEST_ASSERT(vcpu != NULL, "vcpu not found, vcpuid: %u", vcpuid); + struct vcpu *vcpu = vcpu_get(vm, vcpuid); return vcpu->state; } @@ -1610,11 +1601,9 @@ int _vcpu_run(struct kvm_vm *vm, uint32_t vcpuid) void vcpu_run_complete_io(struct kvm_vm *vm, uint32_t vcpuid) { - struct vcpu *vcpu = vcpu_find(vm, vcpuid); + struct vcpu *vcpu = vcpu_get(vm, vcpuid); int ret; - TEST_ASSERT(vcpu != NULL, "vcpu not found, vcpuid: %u", vcpuid); - vcpu->state->immediate_exit = 1; ret = __vcpu_run(vm, vcpuid); vcpu->state->immediate_exit = 0; @@ -1656,14 +1645,9 @@ struct kvm_reg_list *vcpu_get_reg_list(struct kvm_vm *vm, uint32_t vcpuid) int __vcpu_ioctl(struct kvm_vm *vm, uint32_t vcpuid, unsigned long cmd, void *arg) { - struct vcpu *vcpu = vcpu_find(vm, vcpuid); - int ret; + struct vcpu *vcpu = vcpu_get(vm, vcpuid); - TEST_ASSERT(vcpu != NULL, "vcpu not found, vcpuid: %u", vcpuid); - - ret = ioctl(vcpu->fd, cmd, arg); - - return ret; + return ioctl(vcpu->fd, cmd, arg); } void _vcpu_ioctl(struct kvm_vm *vm, uint32_t vcpuid, unsigned long cmd, @@ -1676,15 +1660,11 @@ void _vcpu_ioctl(struct kvm_vm *vm, uint32_t vcpuid, unsigned long cmd, void *vcpu_map_dirty_ring(struct kvm_vm *vm, uint32_t vcpuid) { - struct vcpu *vcpu; + struct vcpu *vcpu = vcpu_get(vm, vcpuid); uint32_t size = vm->dirty_ring_size; TEST_ASSERT(size > 0, "Should enable dirty ring first"); - vcpu = vcpu_find(vm, vcpuid); - - TEST_ASSERT(vcpu, "Cannot find vcpu %u", vcpuid); - if (!vcpu->dirty_gfns) { void *addr; @@ -1840,9 +1820,7 @@ int kvm_device_access(int dev_fd, uint32_t group, uint64_t attr, int _vcpu_has_device_attr(struct kvm_vm *vm, uint32_t vcpuid, uint32_t group, uint64_t attr) { - struct vcpu *vcpu = vcpu_find(vm, vcpuid); - - TEST_ASSERT(vcpu, "nonexistent vcpu id: %d", vcpuid); + struct vcpu *vcpu = vcpu_get(vm, vcpuid); return _kvm_device_check_attr(vcpu->fd, group, attr); } @@ -1859,9 +1837,7 @@ int vcpu_has_device_attr(struct kvm_vm *vm, uint32_t vcpuid, uint32_t group, int _vcpu_access_device_attr(struct kvm_vm *vm, uint32_t vcpuid, uint32_t group, uint64_t attr, void *val, bool write) { - struct vcpu *vcpu = vcpu_find(vm, vcpuid); - - TEST_ASSERT(vcpu, "nonexistent vcpu id: %d", vcpuid); + struct vcpu *vcpu = vcpu_get(vm, vcpuid); return _kvm_device_access(vcpu->fd, group, attr, val, write); } diff --git a/tools/testing/selftests/kvm/lib/kvm_util_internal.h b/tools/testing/selftests/kvm/lib/kvm_util_internal.h index a03febc24ba6..0c7c44499129 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util_internal.h +++ b/tools/testing/selftests/kvm/lib/kvm_util_internal.h @@ -69,7 +69,7 @@ struct kvm_vm { uint32_t dirty_ring_size; }; -struct vcpu *vcpu_find(struct kvm_vm *vm, uint32_t vcpuid); +struct vcpu *vcpu_get(struct kvm_vm *vm, uint32_t vcpuid); /* * Virtual Translation Tables Dump diff --git a/tools/testing/selftests/kvm/lib/s390x/processor.c b/tools/testing/selftests/kvm/lib/s390x/processor.c index f87c7137598e..7cc1051c4b71 100644 --- a/tools/testing/selftests/kvm/lib/s390x/processor.c +++ b/tools/testing/selftests/kvm/lib/s390x/processor.c @@ -208,10 +208,7 @@ void vcpu_args_set(struct kvm_vm *vm, uint32_t vcpuid, unsigned int num, ...) void vcpu_dump(FILE *stream, struct kvm_vm *vm, uint32_t vcpuid, uint8_t indent) { - struct vcpu *vcpu = vcpu_find(vm, vcpuid); - - if (!vcpu) - return; + struct vcpu *vcpu = vcpu_get(vm, vcpuid); fprintf(stream, "%*spstate: psw: 0x%.16llx:0x%.16llx\n", indent, "", vcpu->state->psw_mask, vcpu->state->psw_addr); diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c index 27c40b5ab01d..bd9d1b63b848 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c @@ -996,7 +996,7 @@ static int vcpu_save_xsave_state(struct kvm_vm *vm, struct vcpu *vcpu, struct kvm_x86_state *vcpu_save_state(struct kvm_vm *vm, uint32_t vcpuid) { - struct vcpu *vcpu = vcpu_find(vm, vcpuid); + struct vcpu *vcpu = vcpu_get(vm, vcpuid); struct kvm_msr_list *list; struct kvm_x86_state *state; int nmsrs, r, i; @@ -1079,7 +1079,7 @@ struct kvm_x86_state *vcpu_save_state(struct kvm_vm *vm, uint32_t vcpuid) void vcpu_load_state(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_x86_state *state) { - struct vcpu *vcpu = vcpu_find(vm, vcpuid); + struct vcpu *vcpu = vcpu_get(vm, vcpuid); int r; r = ioctl(vcpu->fd, KVM_SET_SREGS, &state->sregs); -- 2.36.0.464.gb9c8b46e94-goog