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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A57AF10A88E0 for ; Thu, 26 Mar 2026 15:35:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=7lWKzfQbNxQPY2Casn+dBv0UPPovGWizxfUQouIiyBA=; b=nyzFB8cIoVCn91B6RXKw5nwozy muAfjUjW8uFZYuTtJdeL3MGkRq0yloWmBQzkEpJnajT5UQsG+NFJkt6oAAXt7jWh5FNrZvmVZBbXv 98mY8qdsmUNFe1QW4Lzbj22D5P3DDyryiOXJiyZhONh3Sqkicft8+9OWWo5jP5/OHf18m6upiL8AX xbANtcdDuuSV3601pMzD5dtMPTWKH+yTSjDbcSeiSqRtc2B5LW8awYBswYvbMqtx6P5cibvq70I+j EPyVUeFunGNi9eSC+czpR/yfp4DM861OBYt8CSGXYX8AAkv0a6G/6Wko62mztTc+yp7Hm67AwrOVX 3VvYrC/A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w5mkN-00000005lBK-3JJI; Thu, 26 Mar 2026 15:35:47 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w5mkD-00000005l2w-3Bo9 for linux-arm-kernel@lists.infradead.org; Thu, 26 Mar 2026 15:35:40 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 765814454D; Thu, 26 Mar 2026 15:35:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1D27FC19424; Thu, 26 Mar 2026 15:35:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774539337; bh=CIJ73nQF0T1lAkqi3KJjDOMxDw1M8UCTUrlvRdpOz1s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Q6+I9rqZphnlbVX/77B6x8RKvZBVgAxsJXKGP+uMYxRRWecLXO4zXOq9N8y+TtMt7 zbanrkahe/euqPveNPagmg3JKlZ7SuZoZeckCPS7o35l45Y77JaUskTtnZ1rZz/XfC 275FEQcIORlct6WlgLPsUc2b/PKC11oEMlp+kbt5ZJtJGb0LxE297Gvcw7A3qE1MTZ ZExMY6cgo8E+rla1wjgssaeOWJt0n+NaA4SdPvBYuDxYiSruFJvTy5E+QAOJ/FMNwA 3uDPUTrvXLKe0TczC2kijrtM/r/LAD/9bsI9jR3lDyJibn5IWcBp7qGC5dvXy+5Rk6 OFw4Pwy9CVseA== Received: from sofa.misterjones.org ([185.219.108.64] helo=valley-girl.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1w5mkB-000000060II-0GHC; Thu, 26 Mar 2026 15:35:35 +0000 From: Marc Zyngier To: kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Joey Gouly , Suzuki K Poulose , Oliver Upton , Zenghui Yu , Sascha Bischoff , Mark Brown Subject: [PATCH 04/15] KVM: arm64: Fix writeable mask for ID_AA64PFR2_EL1 Date: Thu, 26 Mar 2026 15:35:19 +0000 Message-ID: <20260326153530.3981879-5-maz@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260326153530.3981879-1-maz@kernel.org> References: <20260326153530.3981879-1-maz@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, joey.gouly@arm.com, suzuki.poulose@arm.com, oupton@kernel.org, yuzenghui@huawei.com, sascha.bischoff@arm.com, broonie@kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260326_083537_819566_A7DA51E6 X-CRM114-Status: GOOD ( 10.37 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The writeable mask for fields in ID_AA64PFR2_EL1 has been accidentally inverted, which isn't a very good idea. Restore the expected polarity. Fixes: a258a383b9177 ("KVM: arm64: gic-v5: Sanitize ID_AA64PFR2_EL1.GCIE") Link: https://sashiko.dev/#/patchset/20260319154937.3619520-1-sascha.bischoff%40arm.com Signed-off-by: Marc Zyngier --- arch/arm64/kvm/sys_regs.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index 18e2d2fccedb8..6a96cb7ba9a3c 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -3304,10 +3304,10 @@ static const struct sys_reg_desc sys_reg_descs[] = { ID_AA64PFR1_EL1_MPAM_frac | ID_AA64PFR1_EL1_MTE)), ID_FILTERED(ID_AA64PFR2_EL1, id_aa64pfr2_el1, - ~(ID_AA64PFR2_EL1_FPMR | - ID_AA64PFR2_EL1_MTEFAR | - ID_AA64PFR2_EL1_MTESTOREONLY | - ID_AA64PFR2_EL1_GCIE)), + (ID_AA64PFR2_EL1_FPMR | + ID_AA64PFR2_EL1_MTEFAR | + ID_AA64PFR2_EL1_MTESTOREONLY | + ID_AA64PFR2_EL1_GCIE)), ID_UNALLOCATED(4,3), ID_WRITABLE(ID_AA64ZFR0_EL1, ~ID_AA64ZFR0_EL1_RES0), ID_HIDDEN(ID_AA64SMFR0_EL1), -- 2.47.3