Re: [PATCH 2/2] KVM: Correct documentation of KVM_GET_SUPPORTED_CPUID

[Sasha Levin <levinsasha928@gmail.com>]

Avi,

This is the other part of the get_supported_cpuid change. We discussed
it over IRC and you said it looks right.

On Thu, 2011-11-17 at 12:18 +0200, Sasha Levin wrote:
> If the amount of entries available passed to KVM_GET_SUPPORTED_CPUID is
> too big we don't fail, we just adjust it to the amount actually needed
> and fill the entries.
> 
> Cc: Avi Kivity <avi@redhat.com>
> Cc: Marcelo Tosatti <mtosatti@redhat.com>
> Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
> ---
>  Documentation/virtual/kvm/api.txt |    7 +++----
>  1 files changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
> index 7945b0b..273be09 100644
> --- a/Documentation/virtual/kvm/api.txt
> +++ b/Documentation/virtual/kvm/api.txt
> @@ -1074,10 +1074,9 @@ or for feature consistency across a cluster).
>  Userspace invokes KVM_GET_SUPPORTED_CPUID by passing a kvm_cpuid2 structure
>  with the 'nent' field indicating the number of entries in the variable-size
>  array 'entries'.  If the number of entries is too low to describe the cpu
> -capabilities, an error (E2BIG) is returned.  If the number is too high,
> -the 'nent' field is adjusted and an error (ENOMEM) is returned.  If the
> -number is just right, the 'nent' field is adjusted to the number of valid
> -entries in the 'entries' array, which is then filled.
> +capabilities, an error (E2BIG) is returned.  If the number is above or just,
> +right, the 'nent' field is adjusted to the number of valid entries in the
> +'entries' array, which is then filled.
>  
>  The entries returned are the host cpuid as returned by the cpuid instruction,
>  with unknown or unsupported features masked out.  Some features (for example,

-- 

Sasha.