From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792519779; b=qNyTI60nDphIY4vlK0Oxc7SA1eTwbgsNrryqED4XyZl4U/iXUd1YQ5hk1Blzxm+vXf6k W1kxwUhnpNEgkAdjIX0u0YdzKLllzrj/RbySr1mbg+MKer3jIakEZRBduP0wvEVZlCEKn qe+FEgSaTbskc3wlychgq0D9fKknTHfciRrMzge0PDrxpt1e0vhE04I3oJ/hzwWIpozmu HrCLvZuj+3LYOFUJrPbfBTM6rOSyPtQ519YJRTPJ3cRNrf9qFFVOL0MRHw5VUAkOrXZOg iPB+KfkMFkMMrJEVN7TGmAkjAQZYPrXlHztzjnsyFoiNvptvbaln5Km9eS57A9vUklw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792519779; h=Received:Message-ID:From:Subject:Reply-To:To:Cc:In-Reply-To: References:Content-Type:Content-Transfer-Encoding:Date; bh=XlkY4R8UppfCIBirOHKY+kmFhZ5qWGmpWmrER97kNQ8=; b=F2Q0cs4nuAQldJX6CzUcA+JpuOID2LtG7YjHQx0Lq5lWwzQl03tsup96ppibw8+Y3yUK V1Rq/0Oh1HaB+89sOz/pVzdkEqgaHUWZSW1j9xLX4+/vlmR7fJiBhYS29xeY+iFxI9CMz Pfmvj6pXFNcX+kBlKBRRPWWMkmAye+LhyEOsa+mrwt8aYvTv8uFa6dBhb0REr0lK2qf1D SM/2gv2K+0wUa70oZsdLs1u/0L5TpDxhUXYSMVGeIMikKf1NSsIvQNK40Lhuu/zcMeB1/ +4ZDX4KXWmQemgB5cW9NSxsoXrR3xlFlSTvsBVwQUIyr7itxqmVZOkMdOtYgSCv9lhQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 34FA1606A319 for ; Tue, 20 Oct 2026 18:09:39 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 977791F000C9; Tue, 20 Oct 2026 18:09:38 +0000 (UTC) Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH v2 2/2] KVM: selftests: Test that KVM_RUN fails for unresolvable host faults Reply-To: sashiko-reviews@lists.linux.dev To: "Christian Borntraeger" Cc: linux-s390 , "Heiko Carstens" , "Vasily Gorbik" , "Alexander Gordeev" In-Reply-To: <20261020175818.375700-3-borntraeger@linux.ibm.com> References: <20261020175818.375700-1-borntraeger@linux.ibm.com> <20261020175818.375700-3-borntraeger@linux.ibm.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 20 Oct 2026 18:09:08 +0000 X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > Add a test in which the guest writes to a shmem-backed memslot beyond > the end of the file. KVM_RUN must fail with -EFAULT. >=20 > On x86 the guest enables interrupts, and on s390 the test sets up > pfault, so that KVM could handle the fault with an asynchronous page > fault. If KVM mistakes the error for a fault that needs I/O, the vCPU > retries the access forever, and the test fails after a timeout. >=20 > The test is not built for LoongArch, which handles a failed mapping as > an MMIO access. >=20 > Signed-off-by: Christian Borntraeger Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261020175818.3757= 00-1-borntraeger@linux.ibm.com?part=3D2