From nobody Fri May 10 09:30:13 2024 X-Original-To: dev-commits-src-all@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4VbNs21Y97z5J2dp; Fri, 10 May 2024 09:30:14 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4VbNs2068zz4G2M; Fri, 10 May 2024 09:30:14 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1715333414; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=j4Vhzl4AEobK6rMkwkWU+AW0sueRJUDQvj8tOZkM01w=; b=vDl8uIjrC2cWZmkIeDYRch3QdB5BQFdeRDFKgI76OkXfIekD4vJMcFk98ldNwIxhFzcDjR KqtAlh0MumGcIn2qG1XD2Vf7xcC4gY9zvO3Pi/71ObXWpMmzl33Gsm601mgBZSn2UqHqsf YqF5rc2DedUpT5Uvol3igVuHb7uYgZCTX+HVOX2hG49nhM1M091jianFqGTiq9Ftq7pDeo 9kFP8PKfD8/QKZNZZ6c81La7Uk/sc9GqrLSKE//xytVYjFiiHFOcfJsZmuIL3LHTPYM5AI pLu8nEMPqWoSZpMqqDwR/fKyCldo1Vfv3Z8Impt5YBYmYXTqsnLMG70IFFSIxw== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1715333414; a=rsa-sha256; cv=none; b=VBKFHNSCwFWC61m9VJw0LbdmxhlDGL79QYVtIwa40P5Ln24nDITeq8pA5LJVbOvqwVQDM4 Rh5NAtq5lr/2jKKx75FEWIqBF9/h6NgZJLliZiEodpwdi4iQ1gDSxjXJXvEfyfzG99fV7d RFnitQVaTZxeRGZz1VTH1iS4/9UF/ZQ6G9rORnvtdRlT8+G7yRvU3Gzz2W24KFHEy/MGWq NpE/5vnP/rNO4h5ahRowGK/3vxslK1N8VohiZeAyKrCyCoJQR2KYQuBmQCD2xNRU/q4zt1 Ji4jhE0VhaniSHOjT1M5KKU+w8cFoA+sUIG0ZS8onkzrYzTlwMu92rkM+V6LqQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1715333414; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=j4Vhzl4AEobK6rMkwkWU+AW0sueRJUDQvj8tOZkM01w=; b=VYKtQrG0HLm8izGbtGBKcqANGfxaH6izXlI1MFOc+g+KaYSHSgDMqnXlxL9jWvANOYyU5s dN4f/sQilwa2r/GFBRfdlLBGotFC+OeLnzqOhTeEuduNkM1ppBmt52wMuySKoAKzI0kFmi 1mg6FtIRZNktpPN4E4QiaM/jLrPS53GAuf2xjRLouqbHza6o5zC3XTJHrGr/A/27L1X0r3 wXVXbc3h+t9dDcvVFCguckOoSxeQWRjvTfV6DTfYU5wrUuLVO8iC7wBDcQXhfnc00qNl/X 1gyZ7TNwpyf4X1p4RS8PB4F8AqpYq5Nrd6C4e/NxpceCUmv2l6SxnSCTufmZ7w== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4VbNs16gytzXd3; Fri, 10 May 2024 09:30:13 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.17.1/8.17.1) with ESMTP id 44A9UDZI087512; Fri, 10 May 2024 09:30:13 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.17.1/8.17.1/Submit) id 44A9UDSd087508; Fri, 10 May 2024 09:30:13 GMT (envelope-from git) Date: Fri, 10 May 2024 09:30:13 GMT Message-Id: <202405100930.44A9UDSd087508@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Andrew Turner Subject: git: 634dd430b966 - main - arm64: Update the page table list in locore List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: andrew X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 634dd430b966405f7bd9c2d647b0d7c1281c3de9 Auto-Submitted: auto-generated The branch main has been updated by andrew: URL: https://cgit.FreeBSD.org/src/commit/?id=634dd430b966405f7bd9c2d647b0d7c1281c3de9 commit 634dd430b966405f7bd9c2d647b0d7c1281c3de9 Author: Andrew Turner AuthorDate: 2024-04-24 10:23:42 +0000 Commit: Andrew Turner CommitDate: 2024-05-10 09:29:24 +0000 arm64: Update the page table list in locore The comment describing the page tables was out of date. Update it with the current list. Sponsored by: Arm Ltd --- sys/arm64/arm64/locore.S | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/sys/arm64/arm64/locore.S b/sys/arm64/arm64/locore.S index 67bdece402c2..f53cd365de55 100644 --- a/sys/arm64/arm64/locore.S +++ b/sys/arm64/arm64/locore.S @@ -429,14 +429,16 @@ LEND(get_load_phys_addr) * All the memory must not cross a 1GiB boundaty * x28 contains the physical address we were loaded from * - * TODO: This is out of date. - * There are at least 5 pages before that address for the page tables + * There are 7 or 8 pages before that address for the page tables * The pages used are: + * - The Kernel L3 tables (only for 16k kernel) * - The Kernel L2 table * - The Kernel L1 table * - The Kernel L0 table (TTBR1) + * - The identity (PA = VA) L2 table * - The identity (PA = VA) L1 table - * - The identity (PA = VA) L0 table (TTBR0) + * - The identity (PA = VA) L0 table (Early TTBR0) + * - The Kernel empty L0 table (Late TTBR0) */ LENTRY(create_pagetables) /* Save the Link register */