From patchwork Tue Jul 18 23:45:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Christopherson X-Patchwork-Id: 13317952 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 E8885C001E0 for ; Tue, 18 Jul 2023 23:53:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231158AbjGRXxG (ORCPT ); Tue, 18 Jul 2023 19:53:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49448 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231625AbjGRXws (ORCPT ); Tue, 18 Jul 2023 19:52:48 -0400 Received: from mail-yw1-x1149.google.com (mail-yw1-x1149.google.com [IPv6:2607:f8b0:4864:20::1149]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BA08C3599 for ; Tue, 18 Jul 2023 16:50:13 -0700 (PDT) Received: by mail-yw1-x1149.google.com with SMTP id 00721157ae682-5706641dda9so55252457b3.3 for ; Tue, 18 Jul 2023 16:50:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1689724161; x=1692316161; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:from:to:cc:subject:date:message-id:reply-to; bh=v06h+ALMtOOYf7fX/Ew5y3Hfc7UGMHCjlt3bjyKHsv0=; b=YRRA1+3rdyppDplfs3XH3aJvhxtsAMd7YC9o1tjP/IyjupywaQyvKq+rps81DQn6n1 IfT/9T8MBfb/05cpg+uFjPqU9WMKZxQ9fzOPBnRI+m2vIHPLSV2s/3KQGxo5DIXUHwOZ GdmSnQGPnvE14OEYqjCx4Fm+ABerxK8mDpsKlW+8NItJ+M4Kcnqzj3n4Y+k+3R/C1UBu wvL5E8Pm7bjCuwRxFwoKwRUML3nMWrNZ+3vwOtoXEZiYJEJR64OEqgs5nwKpwCN2Ct+r TXr64pWKwZcTWMIuNy53NUZP6UdwEiJkjqYQFxPcJ5UQJleLQ7qGIFzyDTx8Cn3NQNJC aywg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689724161; x=1692316161; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=v06h+ALMtOOYf7fX/Ew5y3Hfc7UGMHCjlt3bjyKHsv0=; b=aZXQNlWIAdis/lmpUUvjNepG9ZXk3bOZMaDsbS/5kPY1kPAmjMvROJFo/w6fKIiffi gL6F1zqZGFhVb6Y6B1zPdCY6OSsNYN59+sqBaONOMW786Giwry4cKAzd6NmkEE/ObjoE dYYvzMBHJE8PgHnl05sHgdV3QgZt2zR/TkKKWJow6e8c0+Xi4orhKvLsIEpW09NTOcQa EcAaKA87aXqEzZL4A/2/GcYbxuwfbb+yq35qOcyIdrzThKWt5Y9+tBppTqoYMSdJQf0Z cpRa3lgDCgan4g1RcnKlAXB2l0KmunT/Hc9BJ3Z97dRlygqNl87hY+9tce6QZua+xI9N cAGw== X-Gm-Message-State: ABy/qLa6Yu9L1iqugxcBZgwiCag/IKkjdSYeSXs6k6NCl2hpw8N19Ls3 5ByyTd/FhNIwZ2VIfSOEsmOI43L4Q4Q= X-Google-Smtp-Source: APBJJlHpdLxbHGSEDlhfQMIka8AkYqbvfykkp39Gd8+LzOAP/g6chkA545wiuNlxw+N3wiN86qnMnz3hgbE= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a81:b306:0:b0:56c:fce1:7d8d with SMTP id r6-20020a81b306000000b0056cfce17d8dmr185110ywh.6.1689724161668; Tue, 18 Jul 2023 16:49:21 -0700 (PDT) Reply-To: Sean Christopherson Date: Tue, 18 Jul 2023 16:45:09 -0700 In-Reply-To: <20230718234512.1690985-1-seanjc@google.com> Mime-Version: 1.0 References: <20230718234512.1690985-1-seanjc@google.com> X-Mailer: git-send-email 2.41.0.255.g8b1d071c50-goog Message-ID: <20230718234512.1690985-27-seanjc@google.com> Subject: [RFC PATCH v11 26/29] KVM: selftests: Add KVM_SET_USER_MEMORY_REGION2 helper From: Sean Christopherson To: Paolo Bonzini , Marc Zyngier , Oliver Upton , Huacai Chen , Michael Ellerman , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Sean Christopherson , "Matthew Wilcox (Oracle)" , Andrew Morton , Paul Moore , James Morris , "Serge E. Hallyn" Cc: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org, Chao Peng , Fuad Tabba , Jarkko Sakkinen , Yu Zhang , Vishal Annapurve , Ackerley Tng , Maciej Szmigiero , Vlastimil Babka , David Hildenbrand , Quentin Perret , Michael Roth , Wang , Liam Merwick , Isaku Yamahata , "Kirill A . Shutemov" Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org From: Chao Peng Provide a raw version as well as an assert-success version to reduce the amount of boilerplate code need for basic usage. Signed-off-by: Chao Peng Signed-off-by: Ackerley Tng --- .../selftests/kvm/include/kvm_util_base.h | 7 +++++ tools/testing/selftests/kvm/lib/kvm_util.c | 29 +++++++++++++++++++ 2 files changed, 36 insertions(+) diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h index 856440294013..334df27a6f43 100644 --- a/tools/testing/selftests/kvm/include/kvm_util_base.h +++ b/tools/testing/selftests/kvm/include/kvm_util_base.h @@ -492,6 +492,13 @@ void vm_set_user_memory_region(struct kvm_vm *vm, uint32_t slot, uint32_t flags, uint64_t gpa, uint64_t size, void *hva); int __vm_set_user_memory_region(struct kvm_vm *vm, uint32_t slot, uint32_t flags, uint64_t gpa, uint64_t size, void *hva); +void vm_set_user_memory_region2(struct kvm_vm *vm, uint32_t slot, + uint32_t flags, uint64_t gpa, uint64_t size, + void *hva, uint32_t gmem_fd, uint64_t gmem_offset); +int __vm_set_user_memory_region2(struct kvm_vm *vm, uint32_t slot, + uint32_t flags, uint64_t gpa, uint64_t size, + void *hva, uint32_t gmem_fd, uint64_t gmem_offset); + void vm_userspace_mem_region_add(struct kvm_vm *vm, enum vm_mem_backing_src_type src_type, uint64_t guest_paddr, uint32_t slot, uint64_t npages, diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c index 64221c320389..f7b8b5eb3e8f 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util.c +++ b/tools/testing/selftests/kvm/lib/kvm_util.c @@ -868,6 +868,35 @@ void vm_set_user_memory_region(struct kvm_vm *vm, uint32_t slot, uint32_t flags, errno, strerror(errno)); } +int __vm_set_user_memory_region2(struct kvm_vm *vm, uint32_t slot, + uint32_t flags, uint64_t gpa, uint64_t size, + void *hva, uint32_t gmem_fd, uint64_t gmem_offset) +{ + struct kvm_userspace_memory_region2 region = { + .slot = slot, + .flags = flags, + .guest_phys_addr = gpa, + .memory_size = size, + .userspace_addr = (uintptr_t)hva, + .gmem_fd = gmem_fd, + .gmem_offset = gmem_offset, + }; + + return ioctl(vm->fd, KVM_SET_USER_MEMORY_REGION2, ®ion); +} + +void vm_set_user_memory_region2(struct kvm_vm *vm, uint32_t slot, + uint32_t flags, uint64_t gpa, uint64_t size, + void *hva, uint32_t gmem_fd, uint64_t gmem_offset) +{ + int ret = __vm_set_user_memory_region2(vm, slot, flags, gpa, size, hva, + gmem_fd, gmem_offset); + + TEST_ASSERT(!ret, "KVM_SET_USER_MEMORY_REGION2 failed, errno = %d (%s)", + errno, strerror(errno)); +} + + /* FIXME: This thing needs to be ripped apart and rewritten. */ void vm_mem_add(struct kvm_vm *vm, enum vm_mem_backing_src_type src_type, uint64_t guest_paddr, uint32_t slot, uint64_t npages,