From patchwork Wed Dec 28 19:24:36 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Annapurve X-Patchwork-Id: 637505 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 542F3C4332F for ; Wed, 28 Dec 2022 19:25:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233433AbiL1TZA (ORCPT ); Wed, 28 Dec 2022 14:25:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46288 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233179AbiL1TY5 (ORCPT ); Wed, 28 Dec 2022 14:24:57 -0500 Received: from mail-pl1-x649.google.com (mail-pl1-x649.google.com [IPv6:2607:f8b0:4864:20::649]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8AFED18383 for ; Wed, 28 Dec 2022 11:24:52 -0800 (PST) Received: by mail-pl1-x649.google.com with SMTP id m13-20020a170902f64d00b001899a70c8f1so12611028plg.14 for ; Wed, 28 Dec 2022 11:24:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=eezWDwyqk949sEAV6VBZXvmE65PTPfqNCFhhSoX++44=; b=VQLWwAsnp8xEr114AAmlLuYwOEaQZ3kuhyeF6c365GeAlZ4EMzS8MiWB11jz/EMUgm khDN6r175XUEyW7m/oNk3OZkdkPyvwGwmsgCd4NMjRYpSLjTAYPrx72KQCfsNXcbQRLr 0EkXan3XgXT5CLnAlpsw0Vmj/h7JMY+8peywoXVo1O9CJLLG6GhpKfyUTh1zNLRd6zLY FEq1Y+kNPCkX43rdGocrQGj5MgGl4RnJaqHBexdt3XuZeOQtdNgiFzgO99+DYRM3JFBZ 20n74dHtErcViR3PW+5hpXz5jvnhsU/bhHiP4KqIRiiRfueHHRoeui8yVMj5sxFSEL5j 47jA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=eezWDwyqk949sEAV6VBZXvmE65PTPfqNCFhhSoX++44=; b=1Dqr8UQ3d2gQJxt27yFvZAStmDJZMH3zY7V4vygMjCLjVtKd2SV0UyQQiwg+bIHmZb 4qAIFzRa9nDqiuqf5yrhFxDgfKOMe8l+29rzgEltxatZA5c7iC7sTTUmuFJstKxNgXdi +ivIKCh+pN1GT6v99QBK7z2ad/FQjcy+wT8O7aNLD5986Zl3wMLZC4rx8m66fl/hTFCW UO7LqIdvdQxB9qCJ2OTOpT3SqvKHxfWWDFlzZaf4SgikGKigXIS0KQO+/1BmDpvcHgWg UOw2DcsntiQTfMau4/l0wQ3PMJ+5Pm0+RAU9punUXd8GmTwf1jZDEYNgwZcWSnCQUbwY TNIg== X-Gm-Message-State: AFqh2kqKSiOBgHtSumz5YAVD5Xv2/CbulvFv+4DOwPG+l+L3nslGEdvF fkxWX1Hccxxy6jzXw7NSGWiicyJQxSaoMZow X-Google-Smtp-Source: AMrXdXuFouVTMxaq7VekFjs4wz2DtSH9W9iNxpumCXLOPTj16YNvmf/eBWS8w7lu3B8BzCIKLgDjy4XmaacOkKAz X-Received: from vannapurve2.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:41f8]) (user=vannapurve job=sendgmr) by 2002:a17:90a:5c86:b0:219:c1fb:5da8 with SMTP id r6-20020a17090a5c8600b00219c1fb5da8mr2330892pji.221.1672255492112; Wed, 28 Dec 2022 11:24:52 -0800 (PST) Date: Wed, 28 Dec 2022 19:24:36 +0000 In-Reply-To: <20221228192438.2835203-1-vannapurve@google.com> Mime-Version: 1.0 References: <20221228192438.2835203-1-vannapurve@google.com> X-Mailer: git-send-email 2.39.0.314.g84b9a713c41-goog Message-ID: <20221228192438.2835203-3-vannapurve@google.com> Subject: [V4 PATCH 2/4] KVM: selftests: x86: Add variables to store cpu type From: Vishal Annapurve To: x86@kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: pbonzini@redhat.com, shuah@kernel.org, bgardon@google.com, seanjc@google.com, oupton@google.com, peterx@redhat.com, vkuznets@redhat.com, dmatlack@google.com, Vishal Annapurve Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Add variables to hold the cpu vendor type that are initialized early during the selftest setup and later synced to guest vm post VM creation. These variables will be used in later patches to avoid querying CPU type multiple times. Suggested-by: Sean Christopherson Signed-off-by: Vishal Annapurve --- tools/testing/selftests/kvm/lib/x86_64/processor.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c index a799af572f3f..b3d2a9ab5ced 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c @@ -19,6 +19,8 @@ #define MAX_NR_CPUID_ENTRIES 100 vm_vaddr_t exception_handlers; +static bool host_cpu_is_amd; +static bool host_cpu_is_intel; static void regs_dump(FILE *stream, struct kvm_regs *regs, uint8_t indent) { @@ -555,6 +557,8 @@ static void vcpu_setup(struct kvm_vm *vm, struct kvm_vcpu *vcpu) void kvm_arch_vm_post_create(struct kvm_vm *vm) { vm_create_irqchip(vm); + sync_global_to_guest(vm, host_cpu_is_intel); + sync_global_to_guest(vm, host_cpu_is_amd); } struct kvm_vcpu *vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id, @@ -1264,3 +1268,9 @@ bool vm_is_unrestricted_guest(struct kvm_vm *vm) return get_kvm_intel_param_bool("unrestricted_guest"); } + +void kvm_selftest_arch_init(void) +{ + host_cpu_is_intel = this_cpu_is_intel(); + host_cpu_is_amd = this_cpu_is_amd(); +}