Re: [PATCH 3/3] fs/core/vmcore: Move sev_active() reference to x86 arch code

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To: Halil Pasic <pasic@xxxxxxxxxxxxx>
Subject: Re: [PATCH 3/3] fs/core/vmcore: Move sev_active() reference to x86 arch code
From: Christoph Hellwig <hch@xxxxxx>
Date: Fri, 12 Jul 2019 16:08:12 +0200
Cc: Thiago Jung Bauermann <bauerman@xxxxxxxxxxxxx>, x86@xxxxxxxxxx, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Christoph Hellwig <hch@xxxxxx>, Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>, Robin Murphy <robin.murphy@xxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, Alexey Dobriyan <adobriyan@xxxxxxxxx>, Mike Anderson <andmike@xxxxxxxxxxxxx>, Ram Pai <linuxram@xxxxxxxxxx>
In-reply-to: <20190712150912.3097215e.pasic@linux.ibm.com>
References: <20190712053631.9814-1-bauerman@linux.ibm.com> <20190712053631.9814-4-bauerman@linux.ibm.com> <20190712150912.3097215e.pasic@linux.ibm.com>
User-agent: Mutt/1.5.17 (2007-11-01)

On Fri, Jul 12, 2019 at 03:09:12PM +0200, Halil Pasic wrote:
> This is the implementation for the guys that don't
> have ARCH_HAS_MEM_ENCRYPT.
> 
> Means sev_active() may not be used in such code after this
> patch. What about 
> 
> static inline bool force_dma_unencrypted(void)
> {
>         return sev_active();
> }
> 
> in kernel/dma/direct.c?

FYI, I have this pending in the dma-mapping tree:

http://git.infradead.org/users/hch/dma-mapping.git/commitdiff/e67a5ed1f86f4370991c601f2fcad9ebf9e1eebb

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- Re: [PATCH 3/3] fs/core/vmcore: Move sev_active() reference to x86 arch code
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References:
- [PATCH 0/3] Remove x86-specific code from generic headers
  - From: Thiago Jung Bauermann
- [PATCH 3/3] fs/core/vmcore: Move sev_active() reference to x86 arch code
  - From: Thiago Jung Bauermann
- Re: [PATCH 3/3] fs/core/vmcore: Move sev_active() reference to x86 arch code
  - From: Halil Pasic

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