From mboxrd@z Thu Jan  1 00:00:00 1970
From: peter.maydell@linaro.org (Peter Maydell)
Date: Wed, 14 Aug 2013 16:41:12 +0100
Subject: [PATCH] ARM64: KVM: Fix coherent_icache_guest_page() for host
 with external L3-cache.
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 <38A6DD0E-5639-43BB-8318-32D59923E309@suse.de>
 <19553bad1c8427526f6e9a87d605ade3@www.loen.fr>
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To: linux-arm-kernel@lists.infradead.org
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On 14 August 2013 16:34, Marc Zyngier <maz@misterjones.org> wrote:
> When userspace loads the kernel into memory, the kernel is not flushed
> to RAM, and may sit in the L3 cache if the cache is big enough. You
> end-up executing garbage... My proposed fix is to let kvmtool do the
> flushing, as we have userspace cache management operations for this
> exact purpose.

Why does this issue only apply to the loaded kernel and not to
the zero bytes in the rest of RAM? I know executing zeroes
isn't a very useful thing to do but it should be a well defined
thing.

-- PMM