From patchwork Sat Sep 3 01:28:44 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Annapurve X-Patchwork-Id: 12964866 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 BE4EDECAAA1 for ; Sat, 3 Sep 2022 01:29:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230494AbiICB3I (ORCPT ); Fri, 2 Sep 2022 21:29:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47236 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230302AbiICB3I (ORCPT ); Fri, 2 Sep 2022 21:29:08 -0400 Received: from mail-pg1-x54a.google.com (mail-pg1-x54a.google.com [IPv6:2607:f8b0:4864:20::54a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07B13EEF0C for ; Fri, 2 Sep 2022 18:29:07 -0700 (PDT) Received: by mail-pg1-x54a.google.com with SMTP id f128-20020a636a86000000b004340efec1faso36062pgc.4 for ; Fri, 02 Sep 2022 18:29:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date; bh=zLFYPEVszfNpW6dCutbkzHT/LYTZJZBJHTuaDoaj/cE=; b=jduT6xdjGBEpUaZZI4/ZP9lwMs8afG7T8AbeScf86NEDtTl3FPIPdc5ZefkA3jIrDj Bwb3/DP5hlGZY0WU3YZpC5AglW3nbor5Zb/S961uBOb3PUmk7Udw1GQ54mX1dNwk2jPI noQNbXLcB4uoecphVEXOx8qyF64OLSPdkp5kRKQ40qZtBN9TNL8jJOLNR5Qj1qWQf22C VZf2Oer2GQYEIYNZQgsTsx8MKpiIT0bwQfRO4eB4SchDYHhXAng2I65osVf2BG7qAN7I PaEOhkYpuXWewR8O1cB7p9EM3Jjvlow8cWj5mMfdLwCu8QGWMEC+jR2eMfeJ2zXg6bmN VquQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date; bh=zLFYPEVszfNpW6dCutbkzHT/LYTZJZBJHTuaDoaj/cE=; b=yQNsr9TehDb/giSLGQRynyrcMb6gUUmxP+PLRE8vRBvKBchqiJa3Vh7oeLsFo4itcZ AhkhBLtXXcoZMMR7QKuCE6IgU5sOdvU2gL1sxuD08WAca/z1CDjdVWb4KoIxn4ZSQnA3 COxJSS9NVaFISkujsXfQUstPJ+nfpMZ2zlqVZme7BcMykEaurda+tRYXkPQikkuHVc0+ w/Xzw2aHNROEsxWpqUN1gjUzg3GgGwIIN3OeqDytKlZ4i2sIIj2wZJnZsGILI/8ruh2u aEPGGvxTwoDey37cFv3SA1V9r/tlyS4bgH09qFta1DzxEDlMhP6oPjAiD3V2rWuLkZ02 B6xQ== X-Gm-Message-State: ACgBeo3TfebFSmQBZRAP/1LI7UxpBCWgZZgcaT7qkTSMLoRRIWn6FWIj 40sHBkSo8BobWCoBCqm3ky2xNSN8aGfvJy9f X-Google-Smtp-Source: AA6agR66rzFlSrfpXOBJSYUMRES0YBW3NRHNhBL90Jx4+4OKfXFQ2RxhLBsioUbgHaLkY0WBRQnAVizY/BrawuDR X-Received: from vannapurve2.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:41f8]) (user=vannapurve job=sendgmr) by 2002:a62:27c1:0:b0:536:32d2:d098 with SMTP id n184-20020a6227c1000000b0053632d2d098mr39234197pfn.63.1662168546414; Fri, 02 Sep 2022 18:29:06 -0700 (PDT) Date: Sat, 3 Sep 2022 01:28:44 +0000 Mime-Version: 1.0 X-Mailer: git-send-email 2.37.2.789.g6183377224-goog Message-ID: <20220903012849.938069-1-vannapurve@google.com> Subject: [V1 PATCH 0/5] Execute hypercalls from guests according to 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, drjones@redhat.com, dmatlack@google.com, Vishal Annapurve Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org This series is posted in context of the discussion at: https://lore.kernel.org/lkml/Ywa9T+jKUpaHLu%2Fl@google.com/ Major changes: 1) Move common startup logic to a single common main function in kvm_util.c 2) Introduce following APIs: kvm_arch_main: to perform arch specific common startup. kvm_post_vm_load: to update the guest memory state to convey common information to guests. 3) For x86, capture cpu type at startup and pass on the cpu type to guest after guest elf is loaded. 4) Execute hypercall instruction from within guest VMs according to the cpu type. This will help prevent an extra kvm exit during hypercall execution. Vishal Annapurve (5): selftests: kvm: move common startup logic to kvm_util.c selftests: kvm: Introduce kvm_arch_main and helpers selftests: kvm: x86: Execute vmcall/vmmcall according to CPU type selftests: kvm: delete svm_vmcall_test selftests: kvm: Execute vmcall/vmmcall as per cpu type tools/testing/selftests/kvm/.gitignore | 1 - .../selftests/kvm/aarch64/arch_timer.c | 5 +- .../selftests/kvm/aarch64/debug-exceptions.c | 2 +- .../selftests/kvm/aarch64/get-reg-list.c | 2 +- .../selftests/kvm/aarch64/hypercalls.c | 4 +- .../testing/selftests/kvm/aarch64/psci_test.c | 2 +- .../selftests/kvm/aarch64/vcpu_width_config.c | 2 +- .../testing/selftests/kvm/aarch64/vgic_init.c | 2 +- .../testing/selftests/kvm/aarch64/vgic_irq.c | 5 +- .../selftests/kvm/access_tracking_perf_test.c | 4 +- .../selftests/kvm/demand_paging_test.c | 7 +- .../selftests/kvm/dirty_log_perf_test.c | 4 +- tools/testing/selftests/kvm/dirty_log_test.c | 4 +- .../selftests/kvm/hardware_disable_test.c | 2 +- .../selftests/kvm/include/kvm_util_base.h | 15 ++++ .../selftests/kvm/include/x86_64/processor.h | 10 +++ .../selftests/kvm/include/x86_64/vmx.h | 9 --- .../selftests/kvm/kvm_binary_stats_test.c | 3 +- .../selftests/kvm/kvm_create_max_vcpus.c | 4 +- .../selftests/kvm/kvm_page_table_test.c | 4 +- .../selftests/kvm/lib/aarch64/processor.c | 8 ++ tools/testing/selftests/kvm/lib/elf.c | 2 + tools/testing/selftests/kvm/lib/kvm_util.c | 12 +++ .../selftests/kvm/lib/riscv/processor.c | 8 ++ .../selftests/kvm/lib/s390x/processor.c | 8 ++ tools/testing/selftests/kvm/lib/sparsebit.c | 2 +- .../selftests/kvm/lib/x86_64/perf_test_util.c | 2 +- .../selftests/kvm/lib/x86_64/processor.c | 38 +++++++++- .../selftests/kvm/max_guest_memory_test.c | 2 +- .../kvm/memslot_modification_stress_test.c | 4 +- .../testing/selftests/kvm/memslot_perf_test.c | 9 +-- tools/testing/selftests/kvm/rseq_test.c | 7 +- tools/testing/selftests/kvm/s390x/memop.c | 4 +- tools/testing/selftests/kvm/s390x/resets.c | 4 +- .../selftests/kvm/s390x/sync_regs_test.c | 5 +- tools/testing/selftests/kvm/s390x/tprot.c | 2 +- .../selftests/kvm/set_memory_region_test.c | 7 +- tools/testing/selftests/kvm/steal_time.c | 4 +- .../kvm/system_counter_offset_test.c | 2 +- tools/testing/selftests/kvm/x86_64/amx_test.c | 2 +- .../testing/selftests/kvm/x86_64/cpuid_test.c | 2 +- .../kvm/x86_64/cr4_cpuid_sync_test.c | 6 +- .../testing/selftests/kvm/x86_64/debug_regs.c | 4 +- .../kvm/x86_64/emulator_error_test.c | 7 +- .../testing/selftests/kvm/x86_64/evmcs_test.c | 2 +- .../selftests/kvm/x86_64/fix_hypercall_test.c | 2 +- .../kvm/x86_64/get_msr_index_features.c | 2 +- .../selftests/kvm/x86_64/hyperv_clock.c | 2 +- .../selftests/kvm/x86_64/hyperv_cpuid.c | 7 +- .../selftests/kvm/x86_64/hyperv_features.c | 2 +- .../selftests/kvm/x86_64/hyperv_svm_test.c | 2 +- .../selftests/kvm/x86_64/kvm_clock_test.c | 2 +- .../selftests/kvm/x86_64/kvm_pv_test.c | 2 +- .../kvm/x86_64/max_vcpuid_cap_test.c | 3 +- .../selftests/kvm/x86_64/mmio_warning_test.c | 4 +- .../selftests/kvm/x86_64/monitor_mwait_test.c | 3 +- .../selftests/kvm/x86_64/nx_huge_pages_test.c | 4 +- .../selftests/kvm/x86_64/platform_info_test.c | 7 +- .../kvm/x86_64/pmu_event_filter_test.c | 7 +- .../selftests/kvm/x86_64/set_boot_cpu_id.c | 2 +- .../selftests/kvm/x86_64/set_sregs_test.c | 7 +- .../selftests/kvm/x86_64/sev_migrate_tests.c | 3 +- tools/testing/selftests/kvm/x86_64/smm_test.c | 4 +- .../testing/selftests/kvm/x86_64/state_test.c | 10 +-- .../selftests/kvm/x86_64/svm_int_ctl_test.c | 3 +- .../kvm/x86_64/svm_nested_soft_inject_test.c | 7 +- .../selftests/kvm/x86_64/svm_vmcall_test.c | 74 ------------------- .../selftests/kvm/x86_64/sync_regs_test.c | 7 +- .../kvm/x86_64/triple_fault_event_test.c | 2 +- .../selftests/kvm/x86_64/tsc_msrs_test.c | 4 +- .../selftests/kvm/x86_64/tsc_scaling_sync.c | 3 +- .../kvm/x86_64/ucna_injection_test.c | 2 +- .../selftests/kvm/x86_64/userspace_io_test.c | 6 +- .../kvm/x86_64/userspace_msr_exit_test.c | 7 +- .../kvm/x86_64/vmx_apic_access_test.c | 5 +- .../kvm/x86_64/vmx_close_while_nested_test.c | 2 +- .../selftests/kvm/x86_64/vmx_dirty_log_test.c | 4 +- .../vmx_exception_with_invalid_guest_state.c | 2 +- .../x86_64/vmx_invalid_nested_guest_state.c | 2 +- .../selftests/kvm/x86_64/vmx_msrs_test.c | 2 +- .../kvm/x86_64/vmx_nested_tsc_scaling_test.c | 5 +- .../selftests/kvm/x86_64/vmx_pmu_caps_test.c | 2 +- .../kvm/x86_64/vmx_preemption_timer_test.c | 4 +- .../kvm/x86_64/vmx_set_nested_state_test.c | 3 +- .../kvm/x86_64/vmx_tsc_adjust_test.c | 5 +- .../selftests/kvm/x86_64/xapic_ipi_test.c | 4 +- .../selftests/kvm/x86_64/xapic_state_test.c | 2 +- .../selftests/kvm/x86_64/xen_shinfo_test.c | 67 +++++++---------- .../selftests/kvm/x86_64/xen_vmcall_test.c | 17 +++-- .../selftests/kvm/x86_64/xss_msr_test.c | 2 +- 90 files changed, 223 insertions(+), 339 deletions(-) delete mode 100644 tools/testing/selftests/kvm/x86_64/svm_vmcall_test.c