From patchwork Fri Jun 23 10:40:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Haibo Xu X-Patchwork-Id: 13290323 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 435FFEB64D7 for ; Fri, 23 Jun 2023 10:34:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=HKscXA0qUBJ/GcquY5oV/pV6VHD9B6iMC94+39v6s7k=; b=t1vD4A9G8oGR/E 5lfFD9QKfkaLKBKMcC+ysPJAPDvC29+8ieB8N/UcsjZ/BOkan0cQdpQrycnvz3N6jLbFQwgS7vO82 aWfIvl6G9vAoXA0/Ja7I2ZJ2enB9p6hz91NtcTiRD47b2LwwFldSsjVeXbKuRYqRGTiPbuM9oYN/u BA6mZ6ziGx8BYFV4xO/lG97hAZCuqr+VkyG0zcXJxWgX7NbaiOxwkHBpwLss1u8vTm3Ya9+IWLFLC It4aX/zFIFyMew65M1nSUzgNralDghaFO5Jjiuycyv7P69sX5y6U1LRCrlfnv5tEI9JF7URK7slqJ JjlFihYZ0d8eg8D0JiwA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qCe7b-003H2v-2O; Fri, 23 Jun 2023 10:34:31 +0000 Received: from mga05.intel.com ([192.55.52.43]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qCe7Y-003GxD-02; Fri, 23 Jun 2023 10:34:29 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1687516467; x=1719052467; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=Ug0tb+KIthtcBNlWZulbUMsIP+un6qpERH8Wcsp0QfQ=; b=FVcaabBmC2tlLFs7N6ud+BOKDCDppvHjeDHs4YUaE07umlTTddUKftZf LKiI5xilK3wwmsMFXlD4wyBV9dexH1RGZDQ0T2XsYKZuQMfECZJaPDnKy 26S9zBVVLt791omhmSkbRGcG3/JRqUT4HbZH7HGOOYl38+2M8a5UIKEPO zH1hMsCPboJ6kFMJn3wvNF7jtJg4kQqaIZgNkGbFVi/7n1QxVTEKRuWoZ 91abrXsGoSa+hiaUqhKFQcZsCcNO/7+npWX/hHCOYv8+iF5+zIlR8ypCN 6awxEBgi7JRqj70zD6tCaRG5aNYz/VvBF2eSD14O1DArbysawPSwhBQwD Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10749"; a="447112229" X-IronPort-AV: E=Sophos;i="6.01,151,1684825200"; d="scan'208";a="447112229" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Jun 2023 03:34:24 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10749"; a="715275624" X-IronPort-AV: E=Sophos;i="6.01,151,1684825200"; d="scan'208";a="715275624" Received: from haibo-optiplex-7090.sh.intel.com ([10.239.159.132]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Jun 2023 03:34:17 -0700 From: Haibo Xu To: Cc: xiaobo55x@gmail.com, haibo1.xu@intel.com, ajones@ventanamicro.com, maz@kernel.org, oliver.upton@linux.dev, seanjc@google.com, Paolo Bonzini , Jonathan Corbet , Anup Patel , Atish Patra , Paul Walmsley , Palmer Dabbelt , Albert Ou , Shuah Khan , James Morse , Suzuki K Poulose , Zenghui Yu , David Matlack , Ben Gardon , Ricardo Koller , Vishal Annapurve , Vipin Sharma , Colton Lewis , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kselftest@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev Subject: [PATCH v4 00/12] RISCV: Add KVM_GET_REG_LIST API Date: Fri, 23 Jun 2023 18:40:02 +0800 Message-Id: X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230623_033428_084078_F0FDFE50 X-CRM114-Status: GOOD ( 10.79 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org KVM_GET_REG_LIST will dump all register IDs that are available to KVM_GET/SET_ONE_REG and It's very useful to identify some platform regression issue during VM migration. Patch 1-7 re-structured the get-reg-list test in aarch64 to make some of the code as common test framework that can be shared by riscv. Patch 8 move reject_set check logic to a function so as to check for different errno for different registers. Patch 9 change to do the get/set operation only on present-blessed list. Patch 10 enabled the KVM_GET_REG_LIST API in riscv. patch 11-12 added the corresponding kselftest for checking possible register regressions. The get-reg-list kvm selftest was ported from aarch64 and tested with Linux 6.4-rc6 on a Qemu riscv64 virt machine. --- Changed since v3: * Rebase to Linux 6.4-rc6 * Address Andrew's suggestions and comments: * Move reject_set check logic to a function * Only do get/set tests on present blessed list * Only enable ISA extension for the specified config * For disable-not-allowed registers, move them to the filter-reg-list Andrew Jones (7): KVM: arm64: selftests: Replace str_with_index with strdup_printf KVM: arm64: selftests: Drop SVE cap check in print_reg KVM: arm64: selftests: Remove print_reg's dependency on vcpu_config KVM: arm64: selftests: Rename vcpu_config and add to kvm_util.h KVM: arm64: selftests: Delete core_reg_fixup KVM: arm64: selftests: Split get-reg-list test code KVM: arm64: selftests: Finish generalizing get-reg-list Haibo Xu (5): KVM: arm64: selftests: Move reject_set check logic to a function KVM: selftests: Only do get/set tests on present blessed list KVM: riscv: Add KVM_GET_REG_LIST API support KVM: riscv: selftests: Add finalize_vcpu check in run_test KVM: riscv: selftests: Add get-reg-list test Documentation/virt/kvm/api.rst | 2 +- arch/riscv/kvm/vcpu.c | 375 +++++++++ tools/testing/selftests/kvm/Makefile | 11 +- .../selftests/kvm/aarch64/get-reg-list.c | 538 ++----------- tools/testing/selftests/kvm/get-reg-list.c | 439 ++++++++++ .../selftests/kvm/include/kvm_util_base.h | 16 + .../selftests/kvm/include/riscv/processor.h | 3 + .../testing/selftests/kvm/include/test_util.h | 2 + tools/testing/selftests/kvm/lib/test_util.c | 15 + .../selftests/kvm/riscv/get-reg-list.c | 752 ++++++++++++++++++ 10 files changed, 1658 insertions(+), 495 deletions(-) create mode 100644 tools/testing/selftests/kvm/get-reg-list.c create mode 100644 tools/testing/selftests/kvm/riscv/get-reg-list.c