From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2DCE23F165E; Wed, 1 Apr 2026 10:36:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775039792; cv=none; b=MGYlkJfo+PnHzxjPoj4sTE6xZZyu6mWiG13APq7OW3SZmqGqk/JmfZbvH3s7oj9ZrKt0JuOiuO/rZB49qoUyQXl7SgMoyl498yAxIYstt5qbCQj0nJTVnYHBAZWPeWtQQzYmw64sEftoQ5Em6rJ06nfG01YoqPC+Q1G5onehM0U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775039792; c=relaxed/simple; bh=CFePSoo9MRelTjN7d6tKirqt9VLTbTDHcdGyM9MrxaU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=f//OgYKdxA5JUUYtNkWjHxLLn6z212NVaENRsnM26rZRQD+KoDZeZ4ObENWiAETLX9eotxeFUCP05BM0zcFClKDMq73tOpcT7B6jVVv03yEC88mvFK81aJhhRJdTtcM6ct1GCxXuKMoCGpoU5Odjvqk57sOHHbMvoS671Rh4P3w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=reD3drKD; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="reD3drKD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0CE5FC2BCB4; Wed, 1 Apr 2026 10:36:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775039792; bh=CFePSoo9MRelTjN7d6tKirqt9VLTbTDHcdGyM9MrxaU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=reD3drKDITbjHXo+09xcvh/m9AxfUnvjslVLZ5TCQ/LOBiI9sIF/AaM0ONdFXAGEN F7WisRBp/Mm2570vN90c6kYVvlVOlCgJ2mZEcZIP2LM1GW87Vb3mtIkYV+/sH9f/2D AXhyGolStCkrpHd9KdjWxGLhX84d1rVkjVtR4WqKT9/JY1XbubdbSdg1wDE+9Slmh6 qlMqb9FtH4c4K1vOhETxWicQE2e0z3RDOUfru4uvEOCPoN4TyBmprLUX7uylywp5+o bcJ37MIyLrMZjvhUzwWQM7lTFRWNXhSWbR5z6Qv0VJPX7FtOxAvhoA+uYr/nnStB6M Y3ZU6lBeSAJIg== 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 1w7sw2-00000007oRQ-0O3X; Wed, 01 Apr 2026 10:36:30 +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 v2 04/16] KVM: arm64: Fix writeable mask for ID_AA64PFR2_EL1 Date: Wed, 1 Apr 2026 11:35:59 +0100 Message-ID: <20260401103611.357092-5-maz@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260401103611.357092-1-maz@kernel.org> References: <20260401103611.357092-1-maz@kernel.org> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 The writeable mask for fields in ID_AA64PFR2_EL1 has been accidentally inverted, which isn't a very good idea. Restore the expected polarity. Reviewed-by: Sascha Bischoff 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