linux-kernel - [PATCH 05/13] KVM: arm64: Support unaligned fixmap in the nVHE hyp

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Message-ID: <20240911093029.3279154-6-vdonnefort@google.com>
Date: Wed, 11 Sep 2024 10:30:21 +0100
From: Vincent Donnefort <vdonnefort@...gle.com>
To: rostedt@...dmis.org, mhiramat@...nel.org, 
	linux-trace-kernel@...r.kernel.org, maz@...nel.org, oliver.upton@...ux.dev
Cc: kvmarm@...ts.linux.dev, will@...nel.org, qperret@...gle.com, 
	kernel-team@...roid.com, linux-kernel@...r.kernel.org, 
	Vincent Donnefort <vdonnefort@...gle.com>
Subject: [PATCH 05/13] KVM: arm64: Support unaligned fixmap in the nVHE hyp

Return the fixmap VA with the page offset, instead of the page base
address.

Signed-off-by: Vincent Donnefort <vdonnefort@...gle.com>

diff --git a/arch/arm64/kvm/hyp/nvhe/mm.c b/arch/arm64/kvm/hyp/nvhe/mm.c
index 8850b591d775..c5a9d8874eb2 100644
--- a/arch/arm64/kvm/hyp/nvhe/mm.c
+++ b/arch/arm64/kvm/hyp/nvhe/mm.c
@@ -240,7 +240,7 @@ void *hyp_fixmap_map(phys_addr_t phys)
 	WRITE_ONCE(*ptep, pte);
 	dsb(ishst);
 
-	return (void *)slot->addr;
+	return (void *)slot->addr + offset_in_page(phys);
 }
 
 static void fixmap_clear_slot(struct hyp_fixmap_slot *slot)
-- 
2.46.0.598.g6f2099f65c-goog