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From: Christoph Hellwig <hch@lst.de>
To: Halil Pasic <pasic@linux.ibm.com>
Cc: linux-s390@vger.kernel.org, Mike Anderson <andmike@linux.ibm.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	Robin Murphy <robin.murphy@arm.com>,
	x86@kernel.org, Ram Pai <linuxram@us.ibm.com>,
	linux-kernel@vger.kernel.org,
	Alexey Dobriyan <adobriyan@gmail.com>,
	iommu@lists.linux-foundation.org, Ingo Molnar <mingo@redhat.com>,
	Borislav Petkov <bp@alien8.de>, "H. Peter Anvin" <hpa@zytor.com>,
	linux-fsdevel@vger.kernel.org,
	Thomas Gleixner <tglx@linutronix.de>,
	linuxppc-dev@lists.ozlabs.org, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH 3/3] fs/core/vmcore: Move sev_active() reference to x86 arch code
Date: Fri, 12 Jul 2019 17:11:29 +0200
Message-ID: <20190712151129.GA30636@lst.de> (raw)
In-Reply-To: <20190712165153.78d49095.pasic@linux.ibm.com>

On Fri, Jul 12, 2019 at 04:51:53PM +0200, Halil Pasic wrote:
> Thank you very much! I will have another look, but it seems to me,
> without further measures taken, this would break protected virtualization
> support on s390. The effect of the che for s390 is that
> force_dma_unencrypted() will always return false instead calling into
> the platform code like it did before the patch, right?
> 
> Should I send a  Fixes: e67a5ed1f86f "dma-direct: Force unencrypted DMA
> under SME for certain DMA masks" (Tom Lendacky, 2019-07-10) patch that
> rectifies things for s390 or how do we want handle this?

Yes, please do.  I hadn't noticed the s390 support had landed in
mainline already.
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Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-12  5:36 [PATCH 0/3] Remove x86-specific code from generic headers Thiago Jung Bauermann
2019-07-12  5:36 ` [PATCH 1/3] x86/Kconfig: Move ARCH_HAS_MEM_ENCRYPT to arch/Kconfig Thiago Jung Bauermann
2019-07-12 16:04   ` Thomas Gleixner
2019-07-12 23:35     ` Thiago Jung Bauermann
2019-07-12  5:36 ` [PATCH 2/3] DMA mapping: Move SME handling to x86-specific files Thiago Jung Bauermann
2019-07-12  7:13   ` Christoph Hellwig
2019-07-12 23:42     ` Thiago Jung Bauermann
2019-07-12 16:09   ` Thomas Gleixner
2019-07-12  5:36 ` [PATCH 3/3] fs/core/vmcore: Move sev_active() reference to x86 arch code Thiago Jung Bauermann
2019-07-12 13:09   ` Halil Pasic
2019-07-12 14:08     ` Christoph Hellwig
2019-07-12 14:51       ` Halil Pasic
2019-07-12 15:11         ` Christoph Hellwig [this message]
2019-07-12 15:42           ` Halil Pasic
2019-07-13  8:08             ` Christoph Hellwig
2019-07-12 21:55     ` Thiago Jung Bauermann
2019-07-15 14:03       ` Halil Pasic
2019-07-15 14:30         ` Christoph Hellwig
2019-07-15 15:44           ` Lendacky, Thomas
2019-07-15 20:14           ` Thiago Jung Bauermann
2019-07-13  4:45 [PATCH 0/3] Remove x86-specific code from generic headers Thiago Jung Bauermann
2019-07-13  4:45 ` [PATCH 3/3] fs/core/vmcore: Move sev_active() reference to x86 arch code Thiago Jung Bauermann

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