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Re: [Qemu-devel] [PATCH v3] target-i386: implement CPUID[0xB] (Extended

From: Eduardo Habkost
Subject: Re: [Qemu-devel] [PATCH v3] target-i386: implement CPUID[0xB] (Extended Topology Enumeration)
Date: Fri, 27 May 2016 16:12:12 -0300
User-agent: Mutt/1.6.1 (2016-04-27)

On Thu, May 12, 2016 at 07:24:26PM +0200, Radim Krčmář wrote:
> I looked at a dozen Intel CPU that have this CPUID and all of them
> always had Core offset as 1 (a wasted bit when hyperthreading is
> disabled) and Package offset at least 4 (wasted bits at <= 4 cores).
> QEMU uses more compact IDs and it doesn't make much sense to change it
> now.  I keep the SMT and Core sub-leaves even if there is just one
> thread/core;  it makes the code simpler and there should be no harm.
> Signed-off-by: Radim Krčmář <address@hidden>

Reviewed-by: Eduardo Habkost <address@hidden>

Applied to x86-next.


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