Merge remote-tracking branch 'remotes/awilliam/tags/vfio-fixes-20200106.0' into staging

[mirror_qemu.git] / qemu-deprecated.texi

diff --git a/qemu-deprecated.texi b/qemu-deprecated.texi
index 9d74a1cfc0172e35abb4cf440c79d1136c4ca3ee..0968d37c745ac784ab44868f153cd1a3b4a1fc35 100644 (file)
--- a/qemu-deprecated.texi
+++ b/qemu-deprecated.texi
@@ -26,8 +26,7 @@ The @option{enforce-config-section} parameter is replaced by the
 
 @subsection -no-kvm (since 1.3.0)
 
-The ``-no-kvm'' argument is now a synonym for setting
-``-machine accel=tcg''.
+The ``-no-kvm'' argument is now a synonym for setting ``-accel tcg''.
 
 @subsection -usbdevice (since 2.10.0)
 
@@ -90,11 +89,6 @@ error in the future.
 The @code{-realtime mlock=on|off} argument has been replaced by the
 @code{-overcommit mem-lock=on|off} argument.
 
-@subsection -virtfs_synth (since 4.1)
-
-The ``-virtfs_synth'' argument is now deprecated. Please use ``-fsdev synth''
-and ``-device virtio-9p-...'' instead.
-
 @subsection -numa node,mem=@var{size} (since 4.1)
 
 The parameter @option{mem} of @option{-numa node} is used to assign a part of
@@ -148,12 +142,25 @@ QEMU 4.1 has three options, please migrate to one of these three:
       to do is specify the kernel they want to boot with the -kernel option
  3. ``-bios <file>`` - Tells QEMU to load the specified file as the firmwrae.
 
+@subsection -tb-size option (since 5.0)
+
+QEMU 5.0 introduced an alternative syntax to specify the size of the translation
+block cache, @option{-accel tcg,tb-size=}.  The new syntax deprecates the
+previously available @option{-tb-size} option.
+
 @section QEMU Machine Protocol (QMP) commands
 
-@subsection block-dirty-bitmap-add "autoload" parameter (since 2.12.0)
+@subsection change (since 2.5.0)
+
+Use ``blockdev-change-medium'' or ``change-vnc-password'' instead.
+
+@subsection migrate_set_downtime and migrate_set_speed (since 2.8.0)
 
-"autoload" parameter is now ignored. All bitmaps are automatically loaded
-from qcow2 images.
+Use ``migrate-set-parameters'' instead.
+
+@subsection migrate-set-cache-size and query-migrate-cache-size (since 2.11.0)
+
+Use ``migrate-set-parameters'' and ``query-migrate-parameters'' instead.
 
 @subsection query-block result field dirty-bitmaps[i].status (since 4.0)
 
@@ -241,16 +248,24 @@ via the CPU ``mmu`` option when using the ``rv32`` or ``rv64`` CPUs.
 
 @section System emulator devices
 
-@subsection bluetooth (since 3.1)
+@subsection ide-drive (since 4.2)
+
+The 'ide-drive' device is deprecated. Users should use 'ide-hd' or
+'ide-cd' as appropriate to get an IDE hard disk or CD-ROM as needed.
 
-The bluetooth subsystem is unmaintained since many years and likely bitrotten
-quite a bit. It will be removed without replacement unless some users speaks
-up at the @email{qemu-devel@@nongnu.org} mailing list with information about
-their usecases.
+@subsection scsi-disk (since 4.2)
+
+The 'scsi-disk' device is deprecated. Users should use 'scsi-hd' or
+'scsi-cd' as appropriate to get a SCSI hard disk or CD-ROM as needed.
 
 @section System emulator machines
 
-@subsection pc-0.12, pc-0.13, pc-0.14 and pc-0.15 (since 4.0)
+@subsection mips r4k platform (since 4.2)
+
+This machine type is very old and unmaintained. Users should use the 'malta'
+machine type instead.
+
+@subsection pc-1.0, pc-1.1, pc-1.2 and pc-1.3 (since 5.0)
 
 These machine types are very old and likely can not be used for live migration
 from old QEMU versions anymore. A newer machine type should be used instead.
@@ -269,6 +284,17 @@ spec you can use the ``-cpu rv64gcsu,priv_spec=v1.9.1`` command line argument.
 
 @section Device options
 
+@subsection Emulated device options
+
+@subsubsection -device virtio-blk,scsi=on|off (since 5.0.0)
+
+The virtio-blk SCSI passthrough feature is a legacy VIRTIO feature.  VIRTIO 1.0
+and later do not support it because the virtio-scsi device was introduced for
+full SCSI support.  Use virtio-scsi instead when SCSI passthrough is required.
+
+Note this also applies to ``-device virtio-blk-pci,scsi=on|off'', which is an
+alias.
+
 @subsection Block device options
 
 @subsubsection "backing": "" (since 2.12.0)
@@ -357,3 +383,26 @@ existing CPU models.  Management software that needs runnability
 guarantees must resolve the CPU model aliases using te
 ``alias-of'' field returned by the ``query-cpu-definitions'' QMP
 command.
+
+While those guarantees are kept, the return value of
+``query-cpu-definitions'' will have existing CPU model aliases
+point to a version that doesn't break runnability guarantees
+(specifically, version 1 of those CPU models).  In future QEMU
+versions, aliases will point to newer CPU model versions
+depending on the machine type, so management software must
+resolve CPU model aliases before starting a virtual machine.
+
+
+@node Recently removed features
+@appendix Recently removed features
+
+What follows is a record of recently removed, formerly deprecated
+features that serves as a record for users who have encountered
+trouble after a recent upgrade.
+
+@section QEMU Machine Protocol (QMP) commands
+
+@subsection block-dirty-bitmap-add "autoload" parameter (since 4.2.0)
+
+The "autoload" parameter has been ignored since 2.12.0. All bitmaps
+are automatically loaded from qcow2 images.