From patchwork Tue Apr 26 11:43:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Varad Gautam X-Patchwork-Id: 12826954 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 AC611C433EF for ; Tue, 26 Apr 2022 11:44:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349613AbiDZLrZ (ORCPT ); Tue, 26 Apr 2022 07:47:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33756 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349605AbiDZLrV (ORCPT ); Tue, 26 Apr 2022 07:47:21 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 78C0E3B3E6 for ; Tue, 26 Apr 2022 04:44:11 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 9DAAC1F747; Tue, 26 Apr 2022 11:44:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1650973450; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=0FowHxVZfXs06uskdl+dM3gPCzfAn+oqgnWYGXGvHtI=; b=UdqM7z4CfNrlFNFRQAhFt/YFBD1N2a69+zhVkY4LEINHwV+YABq0mn0l0iPY1WYtdEH1H3 QFXTD+eVNK5XBm3x3aAJrij3uF0oklfqcad2vpiMxbB04MbiWK8myxXibnPLJKyAwdPtGP ySqaHpjgYMlm3RTVJYye6299M8ixNZo= Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 0AE3113223; Tue, 26 Apr 2022 11:44:10 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id ywc6AArbZ2K/egAAMHmgww (envelope-from ); Tue, 26 Apr 2022 11:44:09 +0000 From: Varad Gautam To: kvm@vger.kernel.org Cc: pbonzini@redhat.com, drjones@redhat.com, marcorr@google.com, zxwang42@gmail.com, erdemaktas@google.com, rientjes@google.com, seanjc@google.com, brijesh.singh@amd.com, Thomas.Lendacky@amd.com, jroedel@suse.de, bp@suse.de, varad.gautam@suse.com Subject: [kvm-unit-tests PATCH v3 00/11] SMP Support for x86 UEFI Tests Date: Tue, 26 Apr 2022 13:43:41 +0200 Message-Id: <20220426114352.1262-1-varad.gautam@suse.com> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This series brings multi-vcpu support to UEFI tests on x86. Most of the necessary AP bringup code already exists within kvm-unit-tests' cstart64.S, and has now been either rewritten in C or moved to a common location to be shared between EFI and non-EFI test builds. A call gate is used to transition from 16-bit to 32-bit mode, since EFI may not load the 32-bit entrypoint low enough to be reachable from the SIPI vector. Changes in v3: - Unbreak i386 build, ingest seanjc's reviews from v2. Git branch: https://github.com/varadgautam/kvm-unit-tests/commits/ap-boot-v3/ v2: https://lore.kernel.org/kvm/20220412173407.13637-1-varad.gautam@suse.com/ Varad Gautam (11): x86: Share realmode trampoline between i386 and x86_64 x86: Move ap_init() to smp.c x86: Move load_idt() to desc.c x86: desc: Split IDT entry setup into a generic helper x86: Move load_gdt_tss() to desc.c x86: efi: Provide a stack within testcase memory x86: efi: Provide percpu storage x86: efi, smp: Transition APs from 16-bit to 32-bit mode x86: Move 32-bit bringup routines to start32.S x86: efi, smp: Transition APs from 32-bit to 64-bit mode x86: Provide a common 64-bit AP entrypoint for EFI and non-EFI lib/alloc_page.h | 3 + lib/x86/apic.c | 2 - lib/x86/asm/setup.h | 3 + lib/x86/desc.c | 39 +++++++++-- lib/x86/desc.h | 3 + lib/x86/setup.c | 84 ++++++++++++++++++++---- lib/x86/smp.c | 132 +++++++++++++++++++++++++++++++++++++- lib/x86/smp.h | 10 +++ x86/cstart.S | 38 +---------- x86/cstart64.S | 120 +--------------------------------- x86/efi/crt0-efi-x86_64.S | 3 + x86/efi/efistart64.S | 81 ++++++++++++++--------- x86/start16.S | 27 ++++++++ x86/start32.S | 102 +++++++++++++++++++++++++++++ x86/svm_tests.c | 10 ++- 15 files changed, 443 insertions(+), 214 deletions(-) create mode 100644 x86/start16.S create mode 100644 x86/start32.S