From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754489AbcBWJJ2 (ORCPT ); Tue, 23 Feb 2016 04:09:28 -0500 Received: from terminus.zytor.com ([198.137.202.10]:57832 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754425AbcBWJJY (ORCPT ); Tue, 23 Feb 2016 04:09:24 -0500 Date: Tue, 23 Feb 2016 01:05:29 -0800 From: =?UTF-8?B?dGlwLWJvdCBmb3IgQ2hyaXMgSiBBcmdlcyA8dGlwYm90QHp5dG9yLmNvbT4=?=@zytor.com Message-ID: Cc: mingo@kernel.org, torvalds@linux-foundation.org, peterz@infradead.org, hpa@zytor.com, linux-kernel@vger.kernel.org, jpoimboe@redhat.com, tglx@linutronix.de, chris.j.arges@canonical.com Reply-To: tglx@linutronix.de, jpoimboe@redhat.com, chris.j.arges@canonical.com, mingo@kernel.org, peterz@infradead.org, torvalds@linux-foundation.org, linux-kernel@vger.kernel.org, hpa@zytor.com In-Reply-To: <1453499078-9330-3-git-send-email-chris.j.arges@canonical.com> References: <1453499078-9330-3-git-send-email-chris.j.arges@canonical.com> To: =?UTF-8?B?bGludXgtdGlwLWNvbW1pdHNAdmdlci5rZXJuZWwub3Jn?=@zytor.com Subject: =?UTF-8?B?W3RpcDp4ODYvZGVidWddIHg4Ni9rdm06IEFkZCBvdXRwdXQgb3BlcmFuZCBpbiA=?= =?UTF-8?B?dm14X2hhbmRsZV9leHRlcm5hbF9pbnRyIGlubGluZSBhc20=?= Git-Commit-ID: =?UTF-8?B?M2FmZjU0MTVkYjdlNWE1ZTUwZjliMDVjZTFiMGI5MmE0YTU1ZTE2OQ==?= X-Mailer: =?UTF-8?B?dGlwLWdpdC1sb2ctZGFlbW9u?= Robot-ID: =?UTF-8?B?PHRpcC1ib3QuZ2l0Lmtlcm5lbC5vcmc+?= Robot-Unsubscribe: =?UTF-8?B?Q29udGFjdCA8bWFpbHRvOmhwYUBrZXJuZWwub3JnPiB0byBnZXQgYmxhY2tsaXM=?= =?UTF-8?B?dGVkIGZyb20gdGhlc2UgZW1haWxz?= MIME-Version: =?UTF-8?B?MS4w?= Content-Transfer-Encoding: =?UTF-8?B?OGJpdA==?= Content-Type: =?UTF-8?B?dGV4dC9wbGFpbjsgY2hhcnNldD1VVEYtOA==?= Content-Disposition: =?UTF-8?B?aW5saW5l?= Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 3aff5415db7e5a5e50f9b05ce1b0b92a4a55e169 Gitweb: http://git.kernel.org/tip/3aff5415db7e5a5e50f9b05ce1b0b92a4a55e169 Author: Chris J Arges AuthorDate: Fri, 22 Jan 2016 15:44:38 -0600 Committer: Ingo Molnar CommitDate: Tue, 23 Feb 2016 09:04:01 +0100 x86/kvm: Add output operand in vmx_handle_external_intr inline asm Stacktool generates the following warning: stacktool: arch/x86/kvm/vmx.o: vmx_handle_external_intr()+0x67: call without frame pointer save/setup By adding the stackpointer as an output operand, this patch ensures that a stack frame is created when CONFIG_FRAME_POINTER is enabled for the inline assmebly statement. Signed-off-by: Chris J Arges Reviewed-by: Josh Poimboeuf Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: gleb@kernel.org Cc: kvm@vger.kernel.org Cc: live-patching@vger.kernel.org Cc: pbonzini@redhat.com Link: http://lkml.kernel.org/r/1453499078-9330-3-git-send-email-chris.j.arges@canonical.com Signed-off-by: Ingo Molnar --- arch/x86/kvm/vmx.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index e2951b6..e153522 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -8356,6 +8356,7 @@ static void vmx_complete_atomic_exit(struct vcpu_vmx *vmx) static void vmx_handle_external_intr(struct kvm_vcpu *vcpu) { u32 exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO); + register void *__sp asm(_ASM_SP); /* * If external interrupt exists, IF bit is set in rflags/eflags on the @@ -8388,8 +8389,9 @@ static void vmx_handle_external_intr(struct kvm_vcpu *vcpu) "call *%[entry]\n\t" : #ifdef CONFIG_X86_64 - [sp]"=&r"(tmp) + [sp]"=&r"(tmp), #endif + "+r"(__sp) : [entry]"r"(entry), [ss]"i"(__KERNEL_DS),