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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C29EEC433EF for ; Wed, 9 Feb 2022 18:59:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241521AbiBIS7l (ORCPT ); Wed, 9 Feb 2022 13:59:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34148 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241322AbiBIS7c (ORCPT ); Wed, 9 Feb 2022 13:59:32 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9BCEEC03C1A2; Wed, 9 Feb 2022 10:57:38 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 38F62617EB; Wed, 9 Feb 2022 18:57:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 76436C36AE7; Wed, 9 Feb 2022 18:57:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1644433057; bh=eE80Bi90mHkuFyViKklaO5l31qtgcf+UEIP/R5GkX1w=; h=From:To:Cc:Subject:Date:From; b=n5HaPoTMYVmscmW9Ci0QsFIX1DqWnIAvGJ92afaZ/+VUadT+ttJcEUUU6SQIe2luM gPhjveNln/JmHC58CtqtCw//5yKQoz2NEHSyJLU6qPyBe3Vg7wWYwOsStrJHyz5XIb 4JiCMQZchzbkzonqkIxQVJpKKZFU4wEe0/NpedmGpezREbTLdceiQmw7hy/8fUOeV7 w+mW6BVrbHlGO6mprQ6oWrjLvV9jqFWirJ/YMBRRnNJ9n8oWdI+Bh5FH0jfh31Wjpt RjWfbuTTyy5yO2c/+gqv7a0tZwNub3o00jG7dkc5EI+/EsczVNMfdtLYeRhy/J12Zl aD3su6cRKK87Q== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Vitaly Kuznetsov , Paolo Bonzini , Sasha Levin , tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, kvm@vger.kernel.org Subject: [PATCH MANUALSEL 5.4 1/2] KVM: nVMX: eVMCS: Filter out VM_EXIT_SAVE_VMX_PREEMPTION_TIMER Date: Wed, 9 Feb 2022 13:57:30 -0500 Message-Id: <20220209185733.49157-1-sashal@kernel.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Vitaly Kuznetsov [ Upstream commit 7a601e2cf61558dfd534a9ecaad09f5853ad8204 ] Enlightened VMCS v1 doesn't have VMX_PREEMPTION_TIMER_VALUE field, PIN_BASED_VMX_PREEMPTION_TIMER is also filtered out already so it makes sense to filter out VM_EXIT_SAVE_VMX_PREEMPTION_TIMER too. Note, none of the currently existing Windows/Hyper-V versions are known to enable 'save VMX-preemption timer value' when eVMCS is in use, the change is aimed at making the filtering future proof. Signed-off-by: Vitaly Kuznetsov Message-Id: <20220112170134.1904308-3-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini Signed-off-by: Sasha Levin --- arch/x86/kvm/vmx/evmcs.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx/evmcs.h b/arch/x86/kvm/vmx/evmcs.h index 07ebf6882a458..632bed227152e 100644 --- a/arch/x86/kvm/vmx/evmcs.h +++ b/arch/x86/kvm/vmx/evmcs.h @@ -58,7 +58,9 @@ DECLARE_STATIC_KEY_FALSE(enable_evmcs); SECONDARY_EXEC_SHADOW_VMCS | \ SECONDARY_EXEC_TSC_SCALING | \ SECONDARY_EXEC_PAUSE_LOOP_EXITING) -#define EVMCS1_UNSUPPORTED_VMEXIT_CTRL (VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL) +#define EVMCS1_UNSUPPORTED_VMEXIT_CTRL \ + (VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL | \ + VM_EXIT_SAVE_VMX_PREEMPTION_TIMER) #define EVMCS1_UNSUPPORTED_VMENTRY_CTRL (VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL) #define EVMCS1_UNSUPPORTED_VMFUNC (VMX_VMFUNC_EPTP_SWITCHING) -- 2.34.1