From nobody Sat Oct 4 01:42:20 2025 Received: from mail-pj1-f74.google.com (mail-pj1-f74.google.com [209.85.216.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C84AE2EBDE3 for ; Thu, 21 Aug 2025 21:01:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.74 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755810065; cv=none; b=Q9sZduKDWj8IbaySwIYIovd9ah5BtC+SYfFM9Sgdis6Yz9nNlMK/QhTj899+OlWsfeBVMkoEvB63sU+i1vs+XMrhstesBKokpMYuEzETrWUrjhvvnW6J2gMlyvfOk1cQSKrqERG26WByeY7BQjb9OCCiCqLF5APBfrhj0j59G2o= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755810065; c=relaxed/simple; bh=+61MIfhB12OoqxvOVjd5E5G1e4moY0EeyCZxMuVXI2c=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=M7VaJvdQ5l6qWbq0U14OvBS9ZFmlbws+LvstM0JgLOBKIFhYBTLz0srfpsslvY3Po38PbYyBVHYwAZHqS6mtLcs3JQrS9eFMTvPZh9//ZkSeqwtgiyKmn8yOwCE2TOhHVPlENML6Eb0ZqdktrYlylxPIANVOY1rrXJFuizzI7DY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=R5XsgzO9; arc=none smtp.client-ip=209.85.216.74 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="R5XsgzO9" Received: by mail-pj1-f74.google.com with SMTP id 98e67ed59e1d1-323267915ebso2927568a91.1 for ; Thu, 21 Aug 2025 14:01:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1755810063; x=1756414863; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:from:to:cc:subject:date:message-id:reply-to; bh=AynODOx7TIbccej4ZjLdZ9RTKEuSncfsehCPn6XLS1g=; b=R5XsgzO9H4uNNwkJ8wrNoLeMkTtiRX93cbSF67qMrObobIlWvZ42vo8e6REG5IqW2O fO2RDue0jUL0+oNZMjS0JD0PhBO4ZPGLlFv6H2OP1lO62oSrIo+qEPuwdIBpK0klsRX5 6KC0Ghn+YZ2TAYJHsWe0VFq2yE2yLdun2xZPEInA6E+F5cZDYCz7amWm6LiWc870lm9a 27xOM/HX5nb2i9popNJnyjwoeI8yyUACLmrn4VLDxiKeHLSUl5jmboazZm3gYl8IBiOA TnQGFLaDVCnOnPfxmgPUk5l5EbO2irwKD5ogFB2dc3EyS6sbUJqAyd0INX5ojDTW5QRT fohg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1755810063; x=1756414863; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=AynODOx7TIbccej4ZjLdZ9RTKEuSncfsehCPn6XLS1g=; b=xUoHa50RUNx9qQN+MITyorLAKLnSUYqDsl96oLyZ3aTFoMR9yIhBaEMi8em8S/JVQI PSPfrdmPE+bT3OkCqOjSOxy4ibxuHU8FLLstFODCMvWNwC3NorkqCo7TDdd/aIFelrDe arjZZKZx5xzCjp9tEakZZDeBRJCyQuOYPVI8jsiW7XwunRkR5XBk3kOWFEom0BzTfOVs lGx2OmQVUVZNkdr037U5sFbsffkFPQanZSRTolPPS+IhrNh7goBwvcg9Kk0IhEegL1I7 o6dxcsRYH33rzO80Pkooo1bc1bx1QuUeJUOjkURBLZGgZEYHUzpsojLGE0rw0uT9oLJ0 5PQQ== X-Forwarded-Encrypted: i=1; AJvYcCXm7vuKfk7wcyhXMtmJeQA/7Wr4rxNeXDKpkIVnIbpuGDcSUngU11F006vojGFPfyfTYnE+Dz7/Uhi9IMY=@vger.kernel.org X-Gm-Message-State: AOJu0YyIm7vbltT00TrPFcu95VVes7wzog7FfE56NYRWHWTQjhizHLjS NaOadCtO58GP7xBPvBvCQxrJfA9CeTV+X7NpCNTb7jWnNy99+8y3jPV33y5ONqt1HQkXGCWjxIl 1J/Md+A== X-Google-Smtp-Source: AGHT+IEVYwl5YEkw1vqENiDixKFNtOSSF5og6sdGONTLhDTmarsazTWsy/GXacXJvdeMD+BKnVg4vh8e0tk= X-Received: from pjbsd14.prod.google.com ([2002:a17:90b:514e:b0:321:78e7:57fb]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:1b4c:b0:31e:d929:5ca5 with SMTP id 98e67ed59e1d1-32515e2230emr1041388a91.1.1755810063041; Thu, 21 Aug 2025 14:01:03 -0700 (PDT) Reply-To: Sean Christopherson Date: Thu, 21 Aug 2025 14:00:36 -0700 In-Reply-To: <20250821210042.3451147-1-seanjc@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250821210042.3451147-1-seanjc@google.com> X-Mailer: git-send-email 2.51.0.261.g7ce5a0a67e-goog Message-ID: <20250821210042.3451147-11-seanjc@google.com> Subject: [RFC PATCH 10/16] KVM: arm64: Drop local vfio_allow_any_uc, use vm_flags snapshot From: Sean Christopherson To: Marc Zyngier , Oliver Upton Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org, Sean Christopherson , James Houghton Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Drop user_mem_abort()'s local vfio_allow_any_uc variable and instead use the vm_flags snapshot. No functional change intended. Signed-off-by: Sean Christopherson --- arch/arm64/kvm/mmu.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c index 10c73494d505..e1375296940b 100644 --- a/arch/arm64/kvm/mmu.c +++ b/arch/arm64/kvm/mmu.c @@ -1476,7 +1476,7 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, stru= ct kvm_page_fault *fault) int ret =3D 0; bool writable, force_pte =3D false; bool mte_allowed, is_vma_cacheable; - bool s2_force_noncacheable =3D false, vfio_allow_any_uc =3D false; + bool s2_force_noncacheable =3D false; unsigned long mmu_seq; struct kvm *kvm =3D vcpu->kvm; struct vm_area_struct *vma; @@ -1608,8 +1608,6 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, stru= ct kvm_page_fault *fault) fault->gfn =3D fault->ipa >> PAGE_SHIFT; mte_allowed =3D kvm_vma_mte_allowed(vma); =20 - vfio_allow_any_uc =3D vma->vm_flags & VM_ALLOW_ANY_UNCACHED; - vm_flags =3D vma->vm_flags; =20 is_vma_cacheable =3D kvm_vma_is_cacheable(vma); @@ -1741,7 +1739,7 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, stru= ct kvm_page_fault *fault) prot |=3D KVM_PGTABLE_PROT_X; =20 if (s2_force_noncacheable) { - if (vfio_allow_any_uc) + if (vm_flags & VM_ALLOW_ANY_UNCACHED) prot |=3D KVM_PGTABLE_PROT_NORMAL_NC; else prot |=3D KVM_PGTABLE_PROT_DEVICE; --=20 2.51.0.261.g7ce5a0a67e-goog