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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 01792C2BA83 for ; Thu, 13 Feb 2020 15:56:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C9CBC222C2 for ; Thu, 13 Feb 2020 15:56:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581609418; bh=CRBIkMmtK6DbX7OWOAvW7vuWCkdRO+6B/HqySGWO/fY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=rggoVO7fWcPFEtw+rqRhCcd7Phec34iX/tQ/NwR4dlQ6Grlb6fosbTeaYSOhIQfdY joIgHGjoBiXNNFNCLWETfBiVdIRYkVEGQeXrUBRz8hOh73M9bIxLyAS6ySrA+uEQoW inqoMOo/cn/8lhYHxY9cpfHc8rEEh5bZr9XJTRC0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388153AbgBMP45 (ORCPT ); Thu, 13 Feb 2020 10:56:57 -0500 Received: from mail.kernel.org ([198.145.29.99]:41016 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728990AbgBMPZZ (ORCPT ); Thu, 13 Feb 2020 10:25:25 -0500 Received: from localhost (unknown [104.132.1.104]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B32442469A; Thu, 13 Feb 2020 15:25:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581607524; bh=CRBIkMmtK6DbX7OWOAvW7vuWCkdRO+6B/HqySGWO/fY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=yYI7kzh06h4DVf4UDs2iHsb+FFzCALTRNAgK9F0V0E3+v0Cv5FuL4JFM7t3AkJKCn 5j1X5y38ze4NarBbm/3x8a2Pcwl9cmyXeDyqqBORZqk5agWRvzHUzw1X4wCkoB1lpi q5hM5MG64ujuoCQs4PMba93LEJJFH5DifZDiVAFU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Andrew Jones , Gavin Shan , Paolo Bonzini Subject: [PATCH 4.14 076/173] tools/kvm_stat: Fix kvm_exit filter name Date: Thu, 13 Feb 2020 07:19:39 -0800 Message-Id: <20200213151952.689740853@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200213151931.677980430@linuxfoundation.org> References: <20200213151931.677980430@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Gavin Shan commit 5fcf3a55a62afb0760ccb6f391d62f20bce4a42f upstream. The filter name is fixed to "exit_reason" for some kvm_exit events, no matter what architect we have. Actually, the filter name ("exit_reason") is only applicable to x86, meaning it's broken on other architects including aarch64. This fixes the issue by providing various kvm_exit filter names, depending on architect we're on. Afterwards, the variable filter name is picked and applied through ioctl(fd, SET_FILTER). Reported-by: Andrew Jones Signed-off-by: Gavin Shan Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini Signed-off-by: Greg Kroah-Hartman --- tools/kvm/kvm_stat/kvm_stat | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) --- a/tools/kvm/kvm_stat/kvm_stat +++ b/tools/kvm/kvm_stat/kvm_stat @@ -261,6 +261,7 @@ class ArchX86(Arch): def __init__(self, exit_reasons): self.sc_perf_evt_open = 298 self.ioctl_numbers = IOCTL_NUMBERS + self.exit_reason_field = 'exit_reason' self.exit_reasons = exit_reasons @@ -276,6 +277,7 @@ class ArchPPC(Arch): # numbers depend on the wordsize. char_ptr_size = ctypes.sizeof(ctypes.c_char_p) self.ioctl_numbers['SET_FILTER'] = 0x80002406 | char_ptr_size << 16 + self.exit_reason_field = 'exit_nr' self.exit_reasons = {} @@ -283,6 +285,7 @@ class ArchA64(Arch): def __init__(self): self.sc_perf_evt_open = 241 self.ioctl_numbers = IOCTL_NUMBERS + self.exit_reason_field = 'esr_ec' self.exit_reasons = AARCH64_EXIT_REASONS @@ -290,6 +293,7 @@ class ArchS390(Arch): def __init__(self): self.sc_perf_evt_open = 331 self.ioctl_numbers = IOCTL_NUMBERS + self.exit_reason_field = None self.exit_reasons = None ARCH = Arch.get_arch() @@ -513,8 +517,8 @@ class TracepointProvider(Provider): """ filters = {} filters['kvm_userspace_exit'] = ('reason', USERSPACE_EXIT_REASONS) - if ARCH.exit_reasons: - filters['kvm_exit'] = ('exit_reason', ARCH.exit_reasons) + if ARCH.exit_reason_field and ARCH.exit_reasons: + filters['kvm_exit'] = (ARCH.exit_reason_field, ARCH.exit_reasons) return filters def get_available_fields(self):