From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8DC3AC11F72 for ; Fri, 2 Jul 2021 22:07:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 711C4613CD for ; Fri, 2 Jul 2021 22:07:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234238AbhGBWJf (ORCPT ); Fri, 2 Jul 2021 18:09:35 -0400 Received: from mga02.intel.com ([134.134.136.20]:51168 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233074AbhGBWH4 (ORCPT ); Fri, 2 Jul 2021 18:07:56 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10033"; a="195951899" X-IronPort-AV: E=Sophos;i="5.83,320,1616482800"; d="scan'208";a="195951899" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jul 2021 15:05:22 -0700 X-IronPort-AV: E=Sophos;i="5.83,320,1616482800"; d="scan'208";a="642814728" Received: from ls.sc.intel.com (HELO localhost) ([143.183.96.54]) by fmsmga006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jul 2021 15:05:22 -0700 From: isaku.yamahata@intel.com To: Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H . Peter Anvin" , Paolo Bonzini , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , erdemaktas@google.com, Connor Kuehl , Sean Christopherson , x86@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: isaku.yamahata@intel.com, isaku.yamahata@gmail.com, Sean Christopherson Subject: [RFC PATCH v2 18/69] KVM: Export kvm_make_all_cpus_request() for use in marking VMs as bugged Date: Fri, 2 Jul 2021 15:04:24 -0700 Message-Id: <1d8cbbc8065d831343e70b5dcaea92268145eef1.1625186503.git.isaku.yamahata@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Sean Christopherson Export kvm_make_all_cpus_request() and hoist the request helper declarations of request up to the KVM_REQ_* definitions in preparation for adding a "VM bugged" framework. The framework will add KVM_BUG() and KVM_BUG_ON() as alternatives to full BUG()/BUG_ON() for cases where KVM has definitely hit a bug (in itself or in silicon) and the VM is all but guaranteed to be hosed. Marking a VM bugged will trigger a request to all vCPUs to allow arch code to forcefully evict each vCPU from its run loop. Signed-off-by: Sean Christopherson Signed-off-by: Isaku Yamahata --- include/linux/kvm_host.h | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 09618f8a1338..e87f07c5c601 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -158,6 +158,15 @@ static inline bool is_error_page(struct page *page) }) #define KVM_ARCH_REQ(nr) KVM_ARCH_REQ_FLAGS(nr, 0) +bool kvm_make_vcpus_request_mask(struct kvm *kvm, unsigned int req, + struct kvm_vcpu *except, + unsigned long *vcpu_bitmap, cpumask_var_t tmp); +bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req); +bool kvm_make_all_cpus_request_except(struct kvm *kvm, unsigned int req, + struct kvm_vcpu *except); +bool kvm_make_cpus_request_mask(struct kvm *kvm, unsigned int req, + unsigned long *vcpu_bitmap); + #define KVM_USERSPACE_IRQ_SOURCE_ID 0 #define KVM_IRQFD_RESAMPLE_IRQ_SOURCE_ID 1 @@ -616,7 +625,6 @@ struct kvm { #define vcpu_err(vcpu, fmt, ...) \ kvm_err("vcpu%i " fmt, (vcpu)->vcpu_id, ## __VA_ARGS__) -bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req); static inline void kvm_vm_bugged(struct kvm *kvm) { kvm->vm_bugged = true; @@ -955,14 +963,6 @@ void kvm_mmu_free_memory_cache(struct kvm_mmu_memory_cache *mc); void *kvm_mmu_memory_cache_alloc(struct kvm_mmu_memory_cache *mc); #endif -bool kvm_make_vcpus_request_mask(struct kvm *kvm, unsigned int req, - struct kvm_vcpu *except, - unsigned long *vcpu_bitmap, cpumask_var_t tmp); -bool kvm_make_all_cpus_request_except(struct kvm *kvm, unsigned int req, - struct kvm_vcpu *except); -bool kvm_make_cpus_request_mask(struct kvm *kvm, unsigned int req, - unsigned long *vcpu_bitmap); - long kvm_arch_dev_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg); long kvm_arch_vcpu_ioctl(struct file *filp, -- 2.25.1