Re: [tip:x86/efi] x86/efi: Check for unsafe dealing with FPU state in irq ctxt

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Subject: Re: [tip:x86/efi] x86/efi: Check for unsafe dealing with FPU state in irq ctxt
From: Borislav Petkov <bp@xxxxxxxxx>
Date: Thu, 5 Jun 2014 18:44:33 +0200
Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx>, Matt Fleming <matt.fleming@xxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Ricardo Neri <ricardo.neri-calderon@xxxxxxxxxxxxxxx>, "tglx@xxxxxxxxxxxxx" <tglx@xxxxxxxxxxxxx>, "linux-tip-commits@xxxxxxxxxxxxxxx" <linux-tip-commits@xxxxxxxxxxxxxxx>
In-reply-to: <53909E46.4020904@zytor.com>
User-agent: Mutt/1.5.23 (2014-03-12)

On Thu, Jun 05, 2014 at 09:43:50AM -0700, H. Peter Anvin wrote:
> I'm sorry I don't follow.

Exactly what you said in the other mail to Andy: a dedicated XSAVE
buffer for EFI.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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References:
- Re: [tip:x86/efi] x86/efi: Check for unsafe dealing with FPU state in irq ctxt
  - From: Borislav Petkov
- Re: [tip:x86/efi] x86/efi: Check for unsafe dealing with FPU state in irq ctxt
  - From: Andy Lutomirski
- Re: [tip:x86/efi] x86/efi: Check for unsafe dealing with FPU state in irq ctxt
  - From: Borislav Petkov
- Re: [tip:x86/efi] x86/efi: Check for unsafe dealing with FPU state in irq ctxt
  - From: Andy Lutomirski
- Re: [tip:x86/efi] x86/efi: Check for unsafe dealing with FPU state in irq ctxt
  - From: Borislav Petkov
- Re: [tip:x86/efi] x86/efi: Check for unsafe dealing with FPU state in irq ctxt
  - From: Andy Lutomirski
- Re: [tip:x86/efi] x86/efi: Check for unsafe dealing with FPU state in irq ctxt
  - From: Borislav Petkov
- Re: [tip:x86/efi] x86/efi: Check for unsafe dealing with FPU state in irq ctxt
  - From: H. Peter Anvin
- Re: [tip:x86/efi] x86/efi: Check for unsafe dealing with FPU state in irq ctxt
  - From: Borislav Petkov
- Re: [tip:x86/efi] x86/efi: Check for unsafe dealing with FPU state in irq ctxt
  - From: H. Peter Anvin

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