On Wed, Jun 02, 2021 at 03:51:02PM -0500, Eric Blake wrote: > On Mon, May 31, 2021 at 03:38:06PM +0300, Valeriy Vdovin wrote: [...] > > +## > > +# @CpuidEntry: > > +# > > +# A single entry of a CPUID response. > > +# > > +# One entry holds full set of information (leaf) returned to the guest in response > > +# to it calling a CPUID instruction with eax, ecx used as the agruments to that > > arguments > > > +# instruction. ecx is an optional argument as not all of the leaves support it. > > Is there a default value of ecx for when it is not provided by the > user but needed by the leaf? Or is it an error if ecx is omitted in > that case? Similarly, is it an error if ecx is provided but not > needed? What does "not provided by the user" mean here? This is not describing the input to a QMP command, but the input to the CPUID instruction. -- Eduardo
