From patchwork Sun May 17 04:06:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huacai Chen X-Patchwork-Id: 11553897 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 20FCF138A for ; Sun, 17 May 2020 04:08:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0A27E207BB for ; Sun, 17 May 2020 04:08:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="kvQ6/J5J" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726980AbgEQEIw (ORCPT ); Sun, 17 May 2020 00:08:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48698 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726740AbgEQEIw (ORCPT ); Sun, 17 May 2020 00:08:52 -0400 Received: from mail-pg1-x543.google.com (mail-pg1-x543.google.com [IPv6:2607:f8b0:4864:20::543]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6549CC061A0C; Sat, 16 May 2020 21:08:52 -0700 (PDT) Received: by mail-pg1-x543.google.com with SMTP id s10so782304pgm.0; Sat, 16 May 2020 21:08:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=L2RqfqhSc+H+ePr34TV4/iissQYNA9v85c7Lc6tpCIk=; b=kvQ6/J5J0u9VO5HSNQwDyd9+dQxJW5Yfjm/Hg67X+0FLiPMAAW5Zcr8sbaoVv0nFWg sxpwZmzWf+z87BtHgiUKgXyHHxMkYxb1l8oUgWBaqtrXyAfMyDaZ4MvKGxx+z85kpjXL sQ3UEPZWidaIXtpVSMzBm5dlYQ/ghM3QT7x9/HDfjVAFYM8HbMzP8sh9/tgQqWR2ntJM l+90eZUEfDScVFaY3XB/j5sYtRPwAagP/s0DrIn5we2JTZjSIBaKD8CsajBcvzLWhD4h dOltfBjvpdFvu5CjJgu5FcmsaBH/GPasO+pkygTKMkl8oKgPBa2Rrj+3PuQfw1/L0WTF 3THA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=L2RqfqhSc+H+ePr34TV4/iissQYNA9v85c7Lc6tpCIk=; b=JfoPGoBPI7FUcenFVUTekVzBW+//BkA44Z/IfPZRilDrZvJGz2ob8NFVBt+n16ufJr y1gOY+JV+4GeeZkpRtwqYgdkq8GDcnERzbhktUyiPl6M0hoKLmxngcrrEwhtnd6ysbw4 YwYop8sVab8W+1SB49iyGham8LMrQgz2t1LVcXzjUx9LIXsTI3MyI1VMrlRhr24RIiEh ktdTAjUzUvOgqRE8EHDSwVCIArEo90ddLN/qRSf2Pk/HpZYkpsgnToS/AxNNP1Ep9r3s xne50S/n9ZM1xs35iyFNpYWc9x9zD6p0FsLNZiwR/lJpmCdjQSDqpyRO1sldi+u1RUPU BRUA== X-Gm-Message-State: AOAM531+0hLcCPigtgxtlfzj7pJhiNdU4IA992ii0FwsOt1AuVD7F/RX 52xNVpHX+ZEOj+GHogtOymM= X-Google-Smtp-Source: ABdhPJwwXwxd+I6nW+Yuq4+khrggOi0vSm8LNfbWGQHYTt4uDyFko9eHfxRtvJywK9cLJxgVDdFCPg== X-Received: by 2002:a63:715a:: with SMTP id b26mr2424051pgn.433.1589688531904; Sat, 16 May 2020 21:08:51 -0700 (PDT) Received: from software.domain.org (28.144.92.34.bc.googleusercontent.com. [34.92.144.28]) by smtp.gmail.com with ESMTPSA id n9sm5081630pjt.29.2020.05.16.21.08.47 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sat, 16 May 2020 21:08:51 -0700 (PDT) From: Huacai Chen To: Paolo Bonzini , Thomas Bogendoerfer , Aleksandar Markovic Cc: kvm@vger.kernel.org, linux-mips@vger.kernel.org, Fuxin Zhang , Huacai Chen , Jiaxun Yang , Huacai Chen Subject: [PATCH V6 08/15] KVM: MIPS: Let indexed cacheops cause guest exit on Loongson-3 Date: Sun, 17 May 2020 12:06:05 +0800 Message-Id: <1589688372-3098-9-git-send-email-chenhc@lemote.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1589688372-3098-1-git-send-email-chenhc@lemote.com> References: <1589688372-3098-1-git-send-email-chenhc@lemote.com> Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Loongson-3's indexed cache operations need a node-id in the address, but in KVM guest the node-id may be incorrect. So, let indexed cache operations cause guest exit on Loongson-3. Reviewed-by: Aleksandar Markovic Signed-off-by: Huacai Chen Co-developed-by: Jiaxun Yang --- arch/mips/kvm/vz.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/mips/kvm/vz.c b/arch/mips/kvm/vz.c index f9fbbc16..ab320f0 100644 --- a/arch/mips/kvm/vz.c +++ b/arch/mips/kvm/vz.c @@ -2853,8 +2853,12 @@ static int kvm_vz_hardware_enable(void) write_c0_guestctl0(MIPS_GCTL0_CP0 | (MIPS_GCTL0_AT_GUEST << MIPS_GCTL0_AT_SHIFT) | MIPS_GCTL0_CG | MIPS_GCTL0_CF); - if (cpu_has_guestctl0ext) - set_c0_guestctl0ext(MIPS_GCTL0EXT_CGI); + if (cpu_has_guestctl0ext) { + if (current_cpu_type() != CPU_LOONGSON64) + set_c0_guestctl0ext(MIPS_GCTL0EXT_CGI); + else + clear_c0_guestctl0ext(MIPS_GCTL0EXT_CGI); + } if (cpu_has_guestid) { write_c0_guestctl1(0);