From: Catalin Marinas <catalin.marinas@arm.com>
To: Mostafa Saleh <smostafa@google.com>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
will@kernel.org, rppt@kernel.org, maz@kernel.org,
aneesh.kumar@kernel.org
Subject: Re: [PATCH 3/3] arm64/coco: Add pKVM as a CC platform
Date: Thu, 9 Jul 2026 10:11:32 +0100 [thread overview]
Message-ID: <ak9lxJ79rS4MVibf@arm.com> (raw)
In-Reply-To: <20260603110522.3331819-4-smostafa@google.com>
On Wed, Jun 03, 2026 at 11:05:22AM +0000, Mostafa Saleh wrote:
> pKVM does support memory encryption, expose that to the rest of
> the kernel through cc_platform_has()
>
> At the moment, all devices inside the guest are emulated which
> requires its memory to be shared back to the host (decrypted), so
> set force_dma_unencrypted() to always return true.
>
> Although, typically pKVM guests rely on restricted-dma-pools to
> bounce traffic, with this change, it is possible to solely rely on
> the default SWIOTLB for that (assuming the appropriate size is set
> from the command line)
>
> Signed-off-by: Mostafa Saleh <smostafa@google.com>
Good to see reamls and pkvm guests aligned, easier to reason about the
code paths. Thanks!
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
next prev parent reply other threads:[~2026-07-09 9:11 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-03 11:05 [PATCH 0/3] arm64/coco: Convert pKVM to a CC platform Mostafa Saleh
2026-06-03 11:05 ` [PATCH 1/3] arm64/mm: Simplify SWIOTLB setup in arch_mm_preinit() Mostafa Saleh
2026-06-03 12:27 ` Mike Rapoport
2026-06-03 13:13 ` Mostafa Saleh
2026-06-04 9:03 ` Aneesh Kumar K.V
2026-06-04 8:55 ` Aneesh Kumar K.V
2026-07-09 9:08 ` Catalin Marinas
2026-07-12 15:33 ` Mostafa Saleh
2026-06-03 11:05 ` [PATCH 2/3] drivers/virt: pkvm: Fix end calculation in mmio_guard_ioremap_hook() Mostafa Saleh
2026-07-09 9:08 ` Catalin Marinas
2026-06-03 11:05 ` [PATCH 3/3] arm64/coco: Add pKVM as a CC platform Mostafa Saleh
2026-06-04 8:59 ` Aneesh Kumar K.V
2026-06-12 8:44 ` Mostafa Saleh
2026-06-12 15:07 ` Aneesh Kumar K.V
2026-07-09 9:10 ` Catalin Marinas
2026-07-09 9:11 ` Catalin Marinas [this message]
2026-07-07 8:02 ` [PATCH 0/3] arm64/coco: Convert pKVM to " Aneesh Kumar K.V
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