From nobody Mon Feb 9 19:52:48 2026 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 74686258ED4 for ; Mon, 9 Feb 2026 03:25:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.61.82.184 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770607559; cv=none; b=oCZzaQzhr4QLmd/ynNF2QxjJJkvyXUA/+tm1t85oyY87MqmuySj6Zbl+87grAWldeQk73928AiBt6pOuLGmQ3nDyH85AlFBxQzpRLlowJ7R+3MaoMNTtJ2zMParHixQgIRmMpKvqHFv03ljjfBwX8UYUPGM+DI6pe1qTBWYKUCE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770607559; c=relaxed/simple; bh=wQ8zNZWo3gNmUfdFdYur75h1ZgtxxKDdEWMpmF72LKo=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=hGPilRauxDPD498h9nGKUCzTVDJOi4xqek+xtw+qiIfMNaOGTwi7jQAoCjBbS27kr9kXTDJ0am46CdIK2J4xQHSXPbOuEYm5SjcBIa1e7h1RnCQkshugxstI3o7bSyKMekv0/CE8D9lm1j6URzQ5r8sD/cBmxYwKe7VPZOU8M3E= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com; spf=pass smtp.mailfrom=mediatek.com; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b=HEwH8cDb; arc=none smtp.client-ip=210.61.82.184 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mediatek.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="HEwH8cDb" X-UUID: 074ef5fa056711f1b7fc4fdb8733b2bc-20260209 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=zdf80m6iia5xIhe9PY6XN+0habe8icFkZYue+zSTHR4=; b=HEwH8cDbsOEpF/LN5SZZNb0dhhP5j4F8rudHNj7qN21UmKhw/aN7zx0XxxVhUM74aK3D8SJ0AcAK3dmu5rS9nbQpDY7VH+QdeeJqYAV2dF3yG3maF6Vu6gNcMCsGiXl1FtH3BwuUWLvX/1tCI3rgN2N1+/BbR8UjyhFRcZVKLqo=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.11,REQID:cca227dd-88a4-49cf-9210-dcb310f6e288,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:89c9d04,CLOUDID:59cd79f0-16bd-4243-b4ca-b08ca08ab1d8,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102|123|836|888|898,TC:-5,Content:0| 15|50,EDM:-3,IP:nil,URL:0,File:130,RT:0,Bulk:nil,QS:nil,BEC:-1,COL:0,OSI:0 ,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: 074ef5fa056711f1b7fc4fdb8733b2bc-20260209 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1852136951; Mon, 09 Feb 2026 11:25:48 +0800 Received: from mtkmbs13n2.mediatek.inc (172.21.101.108) by MTKMBS09N2.mediatek.inc (172.21.101.94) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.29; Mon, 9 Feb 2026 11:25:47 +0800 Received: from mtksitap99.mediatek.inc (10.233.130.16) by mtkmbs13n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.2562.29 via Frontend Transport; Mon, 9 Feb 2026 11:25:47 +0800 From: To: Marc Zyngier , Oliver Upton , Joey Gouly , Suzuki K Poulose , Zenghui Yu , Catalin Marinas , Will Deacon , Matthias Brugger , AngeloGioacchino Del Regno , Quentin Perret , Vincent Donnefort , , , , CC: , , , kyle-jk.liao Subject: [PATCH] KVM: arm64: Allow module-owned pages in host stage-2 range adjustment Date: Mon, 9 Feb 2026 11:24:13 +0800 Message-ID: <20260209032421.1278325-1-kyle-jk.liao@mediatek.com> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-MTK: N Content-Type: text/plain; charset="utf-8" From: "kyle-jk.liao" The host_stage2_adjust_range() function triggers a WARN_ON when encountering pages marked as both PKVM_NOPAGE and PKVM_MODULE_OWNED_PAGE. This occurs when load_unaligned_zeropad() accesses memory that crosses page boundaries, where one of the pages is module-owned. Extend the check to accept pages with the PKVM_MODULE_OWNED_PAGE flag in addition to PKVM_NOPAGE, preventing spurious warnings during normal module memory access patterns. Signed-off-by: kyle-jk.liao --- arch/arm64/kvm/hyp/nvhe/mem_protect.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvh= e/mem_protect.c index 49db32f3ddf7..baaabf4b5112 100644 --- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c +++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c @@ -495,6 +495,7 @@ static int host_stage2_adjust_range(u64 addr, struct kv= m_mem_range *range) u64 granule; s8 level; int ret; + enum pkvm_page_state state; =20 hyp_assert_lock_held(&host_mmu.lock); ret =3D kvm_pgtable_get_leaf(&host_mmu.pgt, addr, &pte, &level); @@ -505,8 +506,9 @@ static int host_stage2_adjust_range(u64 addr, struct kv= m_mem_range *range) return -EAGAIN; =20 if (pte) { + state =3D get_host_state(hyp_phys_to_page(addr)); WARN_ON(addr_is_memory(addr) && - get_host_state(hyp_phys_to_page(addr)) !=3D PKVM_NOPAGE); + (state !=3D PKVM_NOPAGE && state !=3D (PKVM_NOPAGE | PKVM_MODULE_OWNED_= PAGE))); return -EPERM; } =20 --=20 2.45.2