From owner-dev-commits-doc-all@freebsd.org Sun Mar 28 23:13:03 2021 Return-Path: Delivered-To: dev-commits-doc-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 4F8965B30B1 for ; Sun, 28 Mar 2021 23:13:03 +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 4F7s271rdWz3mm8; Sun, 28 Mar 2021 23:13:03 +0000 (UTC) (envelope-from git@FreeBSD.org) 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 3210EB27; Sun, 28 Mar 2021 23:13:03 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 12SND3oP012822; Sun, 28 Mar 2021 23:13:03 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 12SND3Qn012821; Sun, 28 Mar 2021 23:13:03 GMT (envelope-from git) Date: Sun, 28 Mar 2021 23:13:03 GMT Message-Id: <202103282313.12SND3Qn012821@gitrepo.freebsd.org> To: doc-committers@FreeBSD.org, dev-commits-doc-all@FreeBSD.org From: Piotr Kubaj Subject: git: c5a8a124c3 - main - relnotes/13.0: further powerpc* changes MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: pkubaj X-Git-Repository: doc X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: c5a8a124c35c182d95a046f0b3b795ffdbb785af Auto-Submitted: auto-generated X-BeenThere: dev-commits-doc-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the doc repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 28 Mar 2021 23:13:03 -0000 The branch main has been updated by pkubaj (ports committer): URL: https://cgit.FreeBSD.org/doc/commit/?id=c5a8a124c35c182d95a046f0b3b795ffdbb785af commit c5a8a124c35c182d95a046f0b3b795ffdbb785af Author: Piotr Kubaj AuthorDate: 2021-03-28 23:12:29 +0000 Commit: Piotr Kubaj CommitDate: 2021-03-28 23:12:29 +0000 relnotes/13.0: further powerpc* changes Reported by: adalava --- website/content/en/releases/13.0R/relnotes.adoc | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/website/content/en/releases/13.0R/relnotes.adoc b/website/content/en/releases/13.0R/relnotes.adoc index e34f74484e..aebce15393 100644 --- a/website/content/en/releases/13.0R/relnotes.adoc +++ b/website/content/en/releases/13.0R/relnotes.adoc @@ -45,6 +45,8 @@ Binary upgrades between RELEASE versions (and snapshots of the various security Source-based upgrades (those based on recompiling the FreeBSD base system from source code) from previous versions are supported, according to the instructions in [.filename]#/usr/src/UPDATING#. +Upgrading powerpc64 systems from earlier FreeBSD Releases is NOT supported. Users need to reinstall, due to using new ABI. + [IMPORTANT] ==== Upgrading FreeBSD should only be attempted after backing up _all_ data and configuration files. @@ -210,6 +212,8 @@ gitref:adeebf4cd47c[repository=src] New man:aio_readv[2] and man:aio_writev[2] system calls provide vectored analogues of man:aio_read[2] and man:aio_write[2]. gitref:022ca2fc7fe0 +powerpc64 switched to ELFv2 ABI at the same time it switched to LLVM. This brings us to a parity with modern Linux distributions. This also makes the binaries from previous FreeBSD versions incompatible with 13.0-RELEASE. Kernel still supports ELFv1, so jails and chroots using older FreeBSD versions are still compatible. gitref:e4399d169acc[repository=src] + [[kernel]] == Kernel @@ -499,8 +503,6 @@ if_dwc now supports checksum offloading. gitref:98ea5a7b9a1[repository=src] All powerpc architectures switched to LLVM and are currently mostly similar to amd64 toolchain-wise. gitref:678da4a27447[repository=src] -Because lld doesn't support ELFv1 ABI, powerpc64 also switched to ELFv2 at the same time it switched to LLVM. This brings us to a parity with modern Linux distributions. gitref:e4399d169acc[repository=src] - powerpc (32-bit) switched to Secure-PLT. gitref:e861dab45186[repository=src] powerpc64le (64-bit little endian port) was introduced, targeting POWER8 and newer processors. gitref:b75abea4d087[repository=src] @@ -509,7 +511,9 @@ Radix MMU support for powerpc64 and powerpc64le (experimental, disabled by defau Superpages support for powerpc64 and powerpc64le (experimental, disabled by default). gitref:e2d6c417e303[repository=src] -drm-kmod support (not base related, but involved fixing linuxkpi). gitref:937a05[repository=src] +drm-kmod support (not base related, but involved fixing linuxkpi). gitref:937a05ba81c3[repository=src] + +Support QEMU/KVM pseries without hugepages. gitref:b934fc74683b[repository=src] Plenty of stability fixes, which fix many kernel panics.