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Diffstat (limited to 'qemu-deprecated.texi')
| -rw-r--r-- | qemu-deprecated.texi | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/qemu-deprecated.texi b/qemu-deprecated.texi index 11b870c5c1..5d2d7a3588 100644 --- a/qemu-deprecated.texi +++ b/qemu-deprecated.texi @@ -86,6 +86,18 @@ for these file types is 'host_cdrom' or 'host_device' as appropriate. The @option{name} parameter of the @option{-net} option is a synonym for the @option{id} parameter, which should now be used instead. +@subsection -smp (invalid topologies) (since 3.1) + +CPU topology properties should describe whole machine topology including +possible CPUs. + +However, historically it was possible to start QEMU with an incorrect topology +where @math{@var{n} <= @var{sockets} * @var{cores} * @var{threads} < @var{maxcpus}}, +which could lead to an incorrect topology enumeration by the guest. +Support for invalid topologies will be removed, the user must ensure +topologies described with -smp include all possible cpus, i.e. + @math{@var{sockets} * @var{cores} * @var{threads} = @var{maxcpus}}. + @section QEMU Machine Protocol (QMP) commands @subsection block-dirty-bitmap-add "autoload" parameter (since 2.12.0) |