From patchwork Tue Feb 11 17:49:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Zyngier X-Patchwork-Id: 11376167 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 3712B14B4 for ; Tue, 11 Feb 2020 17:51:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 174D32086A for ; Tue, 11 Feb 2020 17:51:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581443486; bh=6suUVhOomHtBnTlJ4ORDfwOHu1rBDPyP9IgwjpH503U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=hZlQsfzL0yJQGL6Ms28y0SorEo1OQwo6r+QnEBMGDsmdNI/AZxxCTkXHJeHQpuYFv qaWKejFtai/5BhrIdEGCsydy804LlGv6EJXV6o3Ej/a3NUPHATp5GdHIJ4RZU80wEZ wzw5iaKKcxR7zTcg5PIksZBT6metsOhIqS7zrGGw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730348AbgBKRvZ (ORCPT ); Tue, 11 Feb 2020 12:51:25 -0500 Received: from mail.kernel.org ([198.145.29.99]:53756 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730300AbgBKRvZ (ORCPT ); Tue, 11 Feb 2020 12:51:25 -0500 Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (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 31A78206D6; Tue, 11 Feb 2020 17:51:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581443484; bh=6suUVhOomHtBnTlJ4ORDfwOHu1rBDPyP9IgwjpH503U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=y6cNfOqFWUf7IqHpjUqp8kQSpMWBU8xOV/ie2oD/rLhOfCmfR5GoriF1nLJGnrBRE womXjyyjQCepC4IW3dv8KkvmjEq6N4e1yIoujAciudiMp4UxoulMmS5+SFRICyUdd6 Tc4fFFZ7WsDcH4iSptfwJ82La9VVHRSZZdJNSuFE= Received: from 78.163-31-62.static.virginmediabusiness.co.uk ([62.31.163.78] helo=why.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1j1Zg8-004O7k-An; Tue, 11 Feb 2020 17:50:32 +0000 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Cc: Andre Przywara , Christoffer Dall , Dave Martin , Jintack Lim , Alexandru Elisei , James Morse , Julien Thierry , Suzuki K Poulose Subject: [PATCH v2 66/94] arm64: Add SW reserved PTE/PMD bits Date: Tue, 11 Feb 2020 17:49:10 +0000 Message-Id: <20200211174938.27809-67-maz@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200211174938.27809-1-maz@kernel.org> References: <20200211174938.27809-1-maz@kernel.org> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, andre.przywara@arm.com, christoffer.dall@arm.com, Dave.Martin@arm.com, jintack@cs.columbia.edu, alexandru.elisei@arm.com, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Advertise bits [58:55] as reserved for SW in the S2 descriptors. Signed-off-by: Marc Zyngier --- arch/arm64/include/asm/pgtable-hwdef.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h index 6bf5e650da78..7eab0d23cdb5 100644 --- a/arch/arm64/include/asm/pgtable-hwdef.h +++ b/arch/arm64/include/asm/pgtable-hwdef.h @@ -177,10 +177,12 @@ #define PTE_S2_RDONLY (_AT(pteval_t, 1) << 6) /* HAP[2:1] */ #define PTE_S2_RDWR (_AT(pteval_t, 3) << 6) /* HAP[2:1] */ #define PTE_S2_XN (_AT(pteval_t, 2) << 53) /* XN[1:0] */ +#define PTE_S2_SW_RESVD (_AT(pteval_t, 15) << 55) /* Reserved for SW */ #define PMD_S2_RDONLY (_AT(pmdval_t, 1) << 6) /* HAP[2:1] */ #define PMD_S2_RDWR (_AT(pmdval_t, 3) << 6) /* HAP[2:1] */ #define PMD_S2_XN (_AT(pmdval_t, 2) << 53) /* XN[1:0] */ +#define PMD_S2_SW_RESVD (_AT(pmdval_t, 15) << 55) /* Reserved for SW */ #define PUD_S2_RDONLY (_AT(pudval_t, 1) << 6) /* HAP[2:1] */ #define PUD_S2_RDWR (_AT(pudval_t, 3) << 6) /* HAP[2:1] */