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 2/3] drivers/virt: pkvm: Fix end calculation in mmio_guard_ioremap_hook()
Date: Thu, 9 Jul 2026 10:08:47 +0100 [thread overview]
Message-ID: <ak9lH3TJst_SBx9I@arm.com> (raw)
In-Reply-To: <20260603110522.3331819-3-smostafa@google.com>
On Wed, Jun 03, 2026 at 11:05:21AM +0000, Mostafa Saleh wrote:
> Sashiko (locally) reports a logical issues in mmio_guard_ioremap_hook()
>
> mmio_guard_ioremap_hook() attempts to handle unaligned addresses and
> sizes. However, aligning the start address before adding the size, might
> shift the end to the page before.
>
> Fixes: 0f1269495800 ("drivers/virt: pkvm: Intercept ioremap using pKVM MMIO_GUARD hypercall")
> Signed-off-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
next prev parent reply other threads:[~2026-07-09 10:07 UTC|newest]
Thread overview: 16+ 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
2026-06-03 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 [this message]
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
2026-07-07 8:02 ` [PATCH 0/3] arm64/coco: Convert pKVM to " Aneesh Kumar K.V
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