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charset="utf-8" Commit 4d8b0f0a9536 (v6.2.0) deprecated incorrectly typed device_add arguments. Commit be93fd53723c (qdev-monitor: avoid QemuOpts in QMP device_add) fixed them for v9.2.0, but neglected to update documentation. Do that now. Cc: Stefan Hajnoczi Signed-off-by: Markus Armbruster Message-ID: <20250521063711.29840-2-armbru@redhat.com> Reviewed-by: Stefan Hajnoczi [Commit message typo corrected] --- docs/about/deprecated.rst | 14 -------------- docs/about/removed-features.rst | 9 +++++++++ 2 files changed, 9 insertions(+), 14 deletions(-) diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index 44d3427e98..9665bc6fcf 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -187,20 +187,6 @@ threads (for example, it only reports source side of m= ultifd threads, without reporting any destination threads, or non-multifd source threads). For debugging purpose, please use ``-name $VM,debug-threads=3Don`` instead. =20 -Incorrectly typed ``device_add`` arguments (since 6.2) -'''''''''''''''''''''''''''''''''''''''''''''''''''''' - -Due to shortcomings in the internal implementation of ``device_add``, QEMU -incorrectly accepts certain invalid arguments: Any object or list argument= s are -silently ignored. Other argument types are not checked, but an implicit -conversion happens, so that e.g. string values can be assigned to integer -device properties or vice versa. - -This is a bug in QEMU that will be fixed in the future so that previously -accepted incorrect commands will return an error. Users should make sure t= hat -all arguments passed to ``device_add`` are consistent with the documented -property types. - Host Architectures ------------------ =20 diff --git a/docs/about/removed-features.rst b/docs/about/removed-features.= rst index 063284d4f8..92b5ba6218 100644 --- a/docs/about/removed-features.rst +++ b/docs/about/removed-features.rst @@ -722,6 +722,15 @@ Use ``multifd-channels`` instead. =20 Use ``multifd-compression`` instead. =20 +Incorrectly typed ``device_add`` arguments (since 9.2) +'''''''''''''''''''''''''''''''''''''''''''''''''''''' + +Due to shortcomings in the internal implementation of ``device_add``, +QEMU used to incorrectly accept certain invalid arguments. Any object +or list arguments were silently ignored. Other argument types were not +checked, but an implicit conversion happened, so that e.g. string +values could be assigned to integer device properties or vice versa. + QEMU Machine Protocol (QMP) events ---------------------------------- =20 --=20 2.48.1 From nobody Sat Nov 15 19:02:47 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=quarantine dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1748435688; cv=none; d=zohomail.com; s=zohoarc; b=R6Dfo+skKvt6YS7NLydrjQFJtIzIjt3yK1yrAfjQA8IqqSFkqNAQEyVtY+HArvXkprPsDCsTb9pqaY6CrUZc4lr0L1wDsK9OUDE2DHFzoB8mXihas3YBoyCD8pxEpGC5AxssLyROPO9+FUdqx+GELgNx0BkflTuFtqwZaEmL0y8= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1748435688; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; 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Wed, 28 May 2025 12:18:15 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id E03F621E66BB; Wed, 28 May 2025 14:11:43 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1748435637; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=BbV18E4aMISl1yjTK1F2SwsHUP74MmOPlj2EWDtSWjY=; b=M5NQ8ZjvkKPh4+j9TB6lRetlyPwXciHq45KPGScFa2gFAcmdn2leu3Qe0ks60eX8fzHa6Q +51AejgdycxkAQR/nR+Nnh436dHC3NJG8DUEF5I3CIS4YwM216tPSka8dNCxIOqyycDONB Ry8KVqqkQlrX7kg46kav4QO6z4LusOo= X-MC-Unique: uR62UVymPoCEOlJeW7TiKA-1 X-Mimecast-MFC-AGG-ID: uR62UVymPoCEOlJeW7TiKA_1748434695 From: Markus Armbruster To: qemu-devel@nongnu.org Cc: stefanha@redhat.com, Peter Xu , Fabiano Rosas , Peter Krempa Subject: [PULL 2/4] qapi/migration: Deprecate migrate argument @detach Date: Wed, 28 May 2025 14:11:41 +0200 Message-ID: <20250528121143.2208075-3-armbru@redhat.com> In-Reply-To: <20250528121143.2208075-1-armbru@redhat.com> References: <20250528121143.2208075-1-armbru@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" Argument @detach has always been ignored. Start the clock to get rid of it. Cc: Peter Xu Cc: Fabiano Rosas Signed-off-by: Markus Armbruster Message-ID: <20250521063711.29840-3-armbru@redhat.com> ACKed-by: Peter Krempa Reviewed-by: Fabiano Rosas Reviewed-by: Peter Xu --- docs/about/deprecated.rst | 5 +++++ qapi/migration.json | 18 +++++++++--------- 2 files changed, 14 insertions(+), 9 deletions(-) diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index 9665bc6fcf..ef4ea84e69 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -179,6 +179,11 @@ Use ``job-dismiss`` instead. =20 Use ``job-finalize`` instead. =20 +``migrate`` argument ``detach`` (since 10.1) +'''''''''''''''''''''''''''''''''''''''''''' + +This argument has always been ignored. + ``query-migrationthreads`` (since 9.2) '''''''''''''''''''''''''''''''''''''' =20 diff --git a/qapi/migration.json b/qapi/migration.json index 8b9c53595c..ecd266f98e 100644 --- a/qapi/migration.json +++ b/qapi/migration.json @@ -1660,6 +1660,10 @@ # # @resume: resume one paused migration, default "off". (since 3.0) # +# Features: +# +# @deprecated: Argument @detach is deprecated. +# # Since: 0.14 # # .. admonition:: Notes @@ -1668,19 +1672,14 @@ # migration's progress and final result (this information is # provided by the 'status' member). # -# 2. All boolean arguments default to false. -# -# 3. The user Monitor's "detach" argument is invalid in QMP and -# should not be used. -# -# 4. The uri argument should have the Uniform Resource Identifier +# 2. The uri argument should have the Uniform Resource Identifier # of default destination VM. This connection will be bound to # default network. # -# 5. For now, number of migration streams is restricted to one, +# 3. For now, number of migration streams is restricted to one, # i.e. number of items in 'channels' list is just 1. # -# 6. The 'uri' and 'channels' arguments are mutually exclusive; +# 4. The 'uri' and 'channels' arguments are mutually exclusive; # exactly one of the two should be present. # # .. qmp-example:: @@ -1724,7 +1723,8 @@ { 'command': 'migrate', 'data': {'*uri': 'str', '*channels': [ 'MigrationChannel' ], - '*detach': 'bool', '*resume': 'bool' } } + '*detach': { 'type': 'bool', 'features': [ 'deprecated' ] }, + '*resume': 'bool' } } =20 ## # @migrate-incoming: --=20 2.48.1 From nobody Sat Nov 15 19:02:47 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=quarantine dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1748434764; cv=none; d=zohomail.com; s=zohoarc; b=RLh/Zace3MEjrUOXfhtGlMeztgHRS4hl/aU+nuNPUbgU6IwlhDssf6EnmN1dIyNB9QNG4xNt41t4rityAefALObZH9pQbWFDCwxgms0o5LdnGgLjqU/y+j2oiELHnYRNUJ1JTu52KGcthpu2PwXLQrWTgMfaDmEeSCzRyb6ipsU= ARC-Message-Signature: i=1; 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charset="utf-8" The deprecation notes within a section are mostly in version order. Move the few that aren't so they are. Signed-off-by: Markus Armbruster Message-ID: <20250521063711.29840-4-armbru@redhat.com> Reviewed-by: Eric Blake --- docs/about/deprecated.rst | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index ef4ea84e69..4715d1ede5 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -148,6 +148,14 @@ options are removed in favor of using explicit ``block= dev-create`` and ``blockdev-add`` calls. See :doc:`/interop/live-block-operations` for details. =20 +``query-migrationthreads`` (since 9.2) +'''''''''''''''''''''''''''''''''''''' + +To be removed with no replacement, as it reports only a limited set of +threads (for example, it only reports source side of multifd threads, +without reporting any destination threads, or non-multifd source threads). +For debugging purpose, please use ``-name $VM,debug-threads=3Don`` instead. + ``block-job-pause`` (since 10.1) '''''''''''''''''''''''''''''''' =20 @@ -184,14 +192,6 @@ Use ``job-finalize`` instead. =20 This argument has always been ignored. =20 -``query-migrationthreads`` (since 9.2) -'''''''''''''''''''''''''''''''''''''' - -To be removed with no replacement, as it reports only a limited set of -threads (for example, it only reports source side of multifd threads, -without reporting any destination threads, or non-multifd source threads). -For debugging purpose, please use ``-name $VM,debug-threads=3Don`` instead. - Host Architectures ------------------ =20 @@ -522,14 +522,6 @@ PCIe passthrough shall be the mainline solution. CPU device properties ''''''''''''''''''''' =20 -``pcommit`` on x86 (since 9.1) -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -The PCOMMIT instruction was never included in any physical processor. -It was implemented as a no-op instruction in TCG up to QEMU 9.0, but -only with ``-cpu max`` (which does not guarantee migration compatibility -across versions). - ``pmu-num=3Dn`` on RISC-V CPUs (since 8.2) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ =20 @@ -539,6 +531,14 @@ be calculated with ``((2 ^ n) - 1) << 3``. The least s= ignificant three bits must be left clear. =20 =20 +``pcommit`` on x86 (since 9.1) +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +The PCOMMIT instruction was never included in any physical processor. +It was implemented as a no-op instruction in TCG up to QEMU 9.0, but +only with ``-cpu max`` (which does not guarantee migration compatibility +across versions). + Backwards compatibility ----------------------- =20 --=20 2.48.1 From nobody Sat Nov 15 19:02:47 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=quarantine dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1748434768; cv=none; d=zohomail.com; s=zohoarc; b=Jh+pCJyemUACRFOWPBMYnNz6K+MpYBoYXDYsTDSQGIGhbeqoegUdMxObMhyE9jDJbY71YoTX1LKYJ/zPgqHpJjsSG/7bebUd4WtCCsYiwKYmCOlM6CDeVCJDYvu9J6FaSHMZis3Wv1vCcTbvjKaSdArjq6T5SgmMWnFC/V+h8lw= ARC-Message-Signature: i=1; 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charset="utf-8" The removal notes within a section are mostly in version order. Move the few that aren't so they are. Signed-off-by: Markus Armbruster Message-ID: <20250521063711.29840-5-armbru@redhat.com> Reviewed-by: Eric Blake --- docs/about/removed-features.rst | 60 ++++++++++++++++----------------- 1 file changed, 30 insertions(+), 30 deletions(-) diff --git a/docs/about/removed-features.rst b/docs/about/removed-features.= rst index 92b5ba6218..4819cb4665 100644 --- a/docs/about/removed-features.rst +++ b/docs/about/removed-features.rst @@ -162,6 +162,12 @@ specified with ``-mem-path`` can actually provide the = guest RAM configured with The ``name`` parameter of the ``-net`` option was a synonym for the ``id`` parameter, which should now be used instead. =20 +RISC-V firmware not booted by default (removed in 5.1) +'''''''''''''''''''''''''''''''''''''''''''''''''''''' + +QEMU 5.1 changes the default behaviour from ``-bios none`` to ``-bios defa= ult`` +for the RISC-V ``virt`` machine and ``sifive_u`` machine. + ``-numa node,mem=3D...`` (removed in 5.1) ''''''''''''''''''''''''''''''''''''''' =20 @@ -324,12 +330,6 @@ devices. Drives the board doesn't pick up can no long= er be used with This option was undocumented and not used in the field. Use ``-device usb-ccid`` instead. =20 -RISC-V firmware not booted by default (removed in 5.1) -'''''''''''''''''''''''''''''''''''''''''''''''''''''' - -QEMU 5.1 changes the default behaviour from ``-bios none`` to ``-bios defa= ult`` -for the RISC-V ``virt`` machine and ``sifive_u`` machine. - ``-no-quit`` (removed in 7.0) ''''''''''''''''''''''''''''' =20 @@ -911,14 +911,6 @@ The RISC-V no MMU cpus have been removed. The two CPUs= : ``rv32imacu-nommu`` and ``rv64imacu-nommu`` can no longer be used. Instead the MMU status can be s= pecified via the CPU ``mmu`` option when using the ``rv32`` or ``rv64`` CPUs. =20 -RISC-V 'any' CPU type ``-cpu any`` (removed in 9.2) -''''''''''''''''''''''''''''''''''''''''''''''''''' - -The 'any' CPU type was introduced back in 2018 and was around since the -initial RISC-V QEMU port. Its usage was always been unclear: users don't k= now -what to expect from a CPU called 'any', and in fact the CPU does not do an= ything -special that isn't already done by the default CPUs rv32/rv64. - ``compat`` property of server class POWER CPUs (removed in 6.0) ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' =20 @@ -965,6 +957,14 @@ The CRIS architecture was pulled from Linux in 4.17 an= d the compiler was no longer packaged in any distro making it harder to run the ``check-tcg`` tests. =20 +RISC-V 'any' CPU type ``-cpu any`` (removed in 9.2) +''''''''''''''''''''''''''''''''''''''''''''''''''' + +The 'any' CPU type was introduced back in 2018 and was around since the +initial RISC-V QEMU port. Its usage was always been unclear: users don't k= now +what to expect from a CPU called 'any', and in fact the CPU does not do an= ything +special that isn't already done by the default CPUs rv32/rv64. + System accelerators ------------------- =20 @@ -975,18 +975,18 @@ Userspace local APIC with KVM (x86, removed in 8.0) a local APIC. The ``split`` setting is supported, as is using ``-M kernel-irqchip=3Doff`` when the CPU does not have a local APIC. =20 -HAXM (``-accel hax``) (removed in 8.2) -'''''''''''''''''''''''''''''''''''''' - -The HAXM project has been retired (see https://github.com/intel/haxm#statu= s). -Use "whpx" (on Windows) or "hvf" (on macOS) instead. - MIPS "Trap-and-Emulate" KVM support (removed in 8.0) '''''''''''''''''''''''''''''''''''''''''''''''''''' =20 The MIPS "Trap-and-Emulate" KVM host and guest support was removed from Linux in 2021, and is not supported anymore by QEMU either. =20 +HAXM (``-accel hax``) (removed in 8.2) +'''''''''''''''''''''''''''''''''''''' + +The HAXM project has been retired (see https://github.com/intel/haxm#statu= s). +Use "whpx" (on Windows) or "hvf" (on macOS) instead. + System emulator machines ------------------------ =20 @@ -1044,16 +1044,6 @@ Aspeed ``swift-bmc`` machine (removed in 7.0) This machine was removed because it was unused. Alternative AST2500 based OpenPOWER machines are ``witherspoon-bmc`` and ``romulus-bmc``. =20 -Aspeed ``tacoma-bmc`` machine (removed in 10.0) -''''''''''''''''''''''''''''''''''''''''''''''' - -The ``tacoma-bmc`` machine was removed because it didn't bring much -compared to the ``rainier-bmc`` machine. Also, the ``tacoma-bmc`` was -a board used for bring up of the AST2600 SoC that never left the -labs. It can be easily replaced by the ``rainier-bmc`` machine, which -was the actual final product, or by the ``ast2600-evb`` with some -tweaks. - ppc ``taihu`` machine (removed in 7.2) ''''''''''''''''''''''''''''''''''''''''''''' =20 @@ -1084,6 +1074,16 @@ for all machine types using the PXA2xx and OMAP2 SoC= s. We are also dropping the ``cheetah`` OMAP1 board, because we don't have any test images for it and don't know of anybody who does. =20 +Aspeed ``tacoma-bmc`` machine (removed in 10.0) +''''''''''''''''''''''''''''''''''''''''''''''' + +The ``tacoma-bmc`` machine was removed because it didn't bring much +compared to the ``rainier-bmc`` machine. Also, the ``tacoma-bmc`` was +a board used for bring up of the AST2600 SoC that never left the +labs. It can be easily replaced by the ``rainier-bmc`` machine, which +was the actual final product, or by the ``ast2600-evb`` with some +tweaks. + ppc ``ref405ep`` machine (removed in 10.0) '''''''''''''''''''''''''''''''''''''''''' =20 --=20 2.48.1