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Re: [Qemu-devel] [RFC PATCH] i386: Remove ospke CPUID flag name


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [RFC PATCH] i386: Remove ospke CPUID flag name
Date: Tue, 12 Jun 2018 08:55:55 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0

On 11/06/2018 22:37, Eduardo Habkost wrote:
> RFC NOTE: Paolo, Richard, as far as I can see, there's no point
> in enabling OSPKE in user-mode QEMU.  Do you confirm that?
> 
> OSPKE is not a static feature flag: it changes dynamically at
> runtime depending on CR4, and it was never configurable: KVM
> never returned OSPKE on GET_SUPPORTED_CPUID, and on TCG enables
> it automatically if CR4_PKE_MASK is set.
> 
> Remove OSPKE from the feature name array so users don't try to
> configure it manually.
> 
> Signed-off-by: Eduardo Habkost <address@hidden>

Yes, it's the same as OSXSAVE.  Thanks!

Paolo



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