From nobody Tue Feb 10 02:27:37 2026 Delivered-To: importer@patchew.org Received-SPF: none (zoho.com: 192.237.175.120 is neither permitted nor denied by domain of lists.xenproject.org) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; spf=none (zoho.com: 192.237.175.120 is neither permitted nor denied by domain of lists.xenproject.org) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org ARC-Seal: i=1; a=rsa-sha256; t=1560195229; cv=none; d=zoho.com; s=zohoarc; b=k+6GyGsSw3FYqguNu82WHV+AWAKBAB1ssQ4JS3vS37CpKqnf1Bi5XmaA8mZgIhwRhDzPe/Oa56ozgmlIO/C1irGNsPPr639W0fOv2cKctfdBRtTPltDpH03+r4fq4G6GBUy2BBk/KWGLH/MupRrl+nem5q+8zByAAiqGiSKKT5k= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1560195229; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=gPZaE2P7XLaWHYaYxb+lbT4GWbyyaJ6XmLNaH0tlIIg=; b=hUcteR0ymeVV1d6v7GsfHfFc8Nl+m6mVxjU4zse6Tn0irLxO31jU0fBF4xEFPiTynAxeJ1AfoKxKUoDs4UGWwk4LGikKw93JUjPtN13/xa1S1Dxm7dtXSr4ri9HLSyO+EAQus0m0qLi0yv6xgiZJXEFKE1NQ0OsA9a+K7glDTKI= ARC-Authentication-Results: i=1; mx.zoho.com; spf=none (zoho.com: 192.237.175.120 is neither permitted nor denied by domain of lists.xenproject.org) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1560195229297937.9864305081559; Mon, 10 Jun 2019 12:33:49 -0700 (PDT) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1haQ1y-0007jV-SC; Mon, 10 Jun 2019 19:32:34 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1haQ1x-0007hz-Cx for xen-devel@lists.xenproject.org; Mon, 10 Jun 2019 19:32:33 +0000 Received: from foss.arm.com (unknown [217.140.110.172]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTP id 7df36253-8bb6-11e9-8980-bc764e045a96; Mon, 10 Jun 2019 19:32:32 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6381C346; Mon, 10 Jun 2019 12:32:32 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.196.50]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7A5833F73C; Mon, 10 Jun 2019 12:32:31 -0700 (PDT) X-Inumbo-ID: 7df36253-8bb6-11e9-8980-bc764e045a96 From: Julien Grall To: xen-devel@lists.xenproject.org Date: Mon, 10 Jun 2019 20:32:09 +0100 Message-Id: <20190610193215.23704-12-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20190610193215.23704-1-julien.grall@arm.com> References: <20190610193215.23704-1-julien.grall@arm.com> Subject: [Xen-devel] [PATCH 11/17] xen/arm64: head: Document enable_mmu() X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: andre.przywara@arm.com, Julien Grall , Stefano Stabellini , andrii_anisov@epam.com, Oleksandr_Tyshchenko@epam.com MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" Document the behavior and the main registers usage within enable_mmu(). Signed-off-by: Julien Grall --- xen/arch/arm/arm64/head.S | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/xen/arch/arm/arm64/head.S b/xen/arch/arm/arm64/head.S index 7b92c1c8eb..d673f7c0d8 100644 --- a/xen/arch/arm/arm64/head.S +++ b/xen/arch/arm/arm64/head.S @@ -583,6 +583,13 @@ virtphys_clash: ret ENDPROC(create_page_tables) =20 +/* + * Turn on the Data Cache and the MMU. The function will return on the ID + * mapping. In other word, the caller is responsible to switch to the runt= ime + * mapping. + * + * Clobbers x0 - x1 + */ enable_mmu: PRINT("- Turning on paging -\r\n") =20 --=20 2.11.0 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel