From nobody Sat Feb 7 21:24:05 2026 Received: from mail-pj1-f73.google.com (mail-pj1-f73.google.com [209.85.216.73]) (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 7F12331327C for ; Fri, 7 Nov 2025 22:21:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.73 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762554070; cv=none; b=VnNZT2AamfSiOsI8iD0fgAhnLe5iUZCxJrEUvJGTEK/icUgXMA8U4Z4IUge3V3ZPrz8CbzBX6J71VkXQCJh5lq42zfMZG6v+VNDYt/lrwu1HVCohsRI21GXn3740BYdygWU1WjO8hs9SUUL1UVPm7+qQ634l87d0MMYESl3PLjs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762554070; c=relaxed/simple; bh=WUqWR70IoFJFm2xG+9BjmEYbjs7hMs0yO7Awp4mKSeg=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=I9kzVqtMg1uRX3AGOx7Grjo4q9hD88lpx3GHtmWdlungEfCzxM255CPpTSoxPUg7gWWTg9Z/gDXsV07ZKoE3uZX+jah+qowPHXnBmXPNM/69ii2/WgUg0lrA8qV8GUBXbAypiB778MBeQrVOQyvNEn6qOTgnc0VaVTeo1jr1Mwc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--dmatlack.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=u+rIdeuB; arc=none smtp.client-ip=209.85.216.73 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--dmatlack.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="u+rIdeuB" Received: by mail-pj1-f73.google.com with SMTP id 98e67ed59e1d1-33da21394adso1404390a91.1 for ; Fri, 07 Nov 2025 14:21:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1762554069; x=1763158869; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=zuSF9+hfy+NMVL8N7Q7F7ZTFz7YXKcb4ealISCMjhtI=; b=u+rIdeuBtiE1GdBQEaII0asi7wkzEvgpXOhJPC7TArJoKAMZILScEXmf7lVw4DrjSC YPnZMEWpS+hgxESq1x7GAt/N5w1jrWdrWmIG/rXo3QQ0wnhp+bJgb5z2SefY+/vmI2Zy cjcAGDZebWW0SQojJv1t1nF9914326J7ePcXU1h4eFJv02b47se4gOMz1PhWf1tZKKap +oMoP6P3kSwy2TAorg1wE1Axn9k42DMVsiSo5MrWniO1ZMHAbCFONMZDXg23djqhIAVf tc3eOGj+oTn8UK3FbjJSDI0eudLV7aC1YVo3oT91GrqDMDLm6XFH6ZrgUimIP9fvR+mH DvkA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1762554069; x=1763158869; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=zuSF9+hfy+NMVL8N7Q7F7ZTFz7YXKcb4ealISCMjhtI=; b=RcvHmP5xTmm416Wud7YpEnwf7LBY6rMDX4AY51ubhI3kTqGbsvaEmEK7KqjEzeCXSg UzLbvYsQSGR/8CxqwweUIy51B3FOuVWgU7wADpDM1f7oh2x4KnOxUm/0amz1WHSITPY7 M6qPhtLBP9ZfIlVHUMYOLyo3yUULFzrfQitIRjkMR9uuVAFNmjoWP3C152fS3A5aFLLQ L0dkf8x1tK51ICxpem8D9hFG2y9wdbZdvwm/z1DdM0AuhcMXvBH6kmVFJihzdfLfV4tq ac86xO6zKHvzAU3TgWU8O4qdvEmZNtHqMckaStOoXdYIRfPJRcV/Q/v0w5r7N/1OPT1H h1+A== X-Forwarded-Encrypted: i=1; AJvYcCWteEJsizgug9GPdRHIJh4DNB/tbV4PtID3Qju3ImTXQsDBls7NpJx3qsUEx3hPkfURwpwD1FfqZ81SJ78=@vger.kernel.org X-Gm-Message-State: AOJu0Yxq7ejeKwANYqH8VtSaDtL0oIgSA10xGyvCT9CdP1I3aXHSlcT/ IU4ZzT3ReSVeHy4FEMYgJqrnlA8GNc5h3ciiW9oN6bwPkav+wtjM3U++5U2QpV2Sx9PVBukU+Pu JlmHlkhdZP8Q1/w== X-Google-Smtp-Source: AGHT+IEXQvyuUBBRKN1QeiIACDjnMWHrD1uj7W5TBwePpvwHJac5Du36S2WgUjA6zrrdDIZtsxvqBPbemHNQqA== X-Received: from pjbqj11.prod.google.com ([2002:a17:90b:28cb:b0:340:cddf:785a]) (user=dmatlack job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:4a81:b0:341:c89:73d2 with SMTP id 98e67ed59e1d1-3436cced914mr670238a91.22.1762554068725; Fri, 07 Nov 2025 14:21:08 -0800 (PST) Date: Fri, 7 Nov 2025 22:20:58 +0000 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.51.2.1041.gc1ab5b90ca-goog Message-ID: <20251107222058.2009244-1-dmatlack@google.com> Subject: [PATCH] vfio: selftests: Skip vfio_dma_map_limit_test if mapping returns -EINVAL From: David Matlack To: Alex Williamson Cc: Alex Mastro , Alex Williamson , David Matlack , Jason Gunthorpe , kvm@vger.kernel.org, linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Skip vfio_dma_map_limit_test.{unmap_range,unmap_all} (instead of failing) on systems that do not support mapping in the page-sized region at the top of the u64 address space. Use -EINVAL as the signal for detecting systems with this limitation, as that is what both VFIO Type1 and iommufd return. A more robust solution that could be considered in the future would be to explicitly check the range of supported IOVA regions and key off that, instead of inferring from -EINVAL. Fixes: de8d1f2fd5a5 ("vfio: selftests: add end of address space DMA map/unm= ap tests") Signed-off-by: David Matlack Reviewed-by: Alex Mastro --- .../testing/selftests/vfio/vfio_dma_mapping_test.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/vfio/vfio_dma_mapping_test.c b/tools/t= esting/selftests/vfio/vfio_dma_mapping_test.c index 4f1ea79a200c..52b49cae58fe 100644 --- a/tools/testing/selftests/vfio/vfio_dma_mapping_test.c +++ b/tools/testing/selftests/vfio/vfio_dma_mapping_test.c @@ -249,7 +249,12 @@ TEST_F(vfio_dma_map_limit_test, unmap_range) u64 unmapped; int rc; =20 - vfio_pci_dma_map(self->device, region); + rc =3D __vfio_pci_dma_map(self->device, region); + if (rc =3D=3D -EINVAL) + SKIP(return, "Unable to map at iova 0x%lx\n", region->iova); + else + ASSERT_EQ(rc, 0); + ASSERT_EQ(region->iova, to_iova(self->device, region->vaddr)); =20 rc =3D __vfio_pci_dma_unmap(self->device, region, &unmapped); @@ -263,7 +268,12 @@ TEST_F(vfio_dma_map_limit_test, unmap_all) u64 unmapped; int rc; =20 - vfio_pci_dma_map(self->device, region); + rc =3D __vfio_pci_dma_map(self->device, region); + if (rc =3D=3D -EINVAL) + SKIP(return, "Unable to map at iova 0x%lx\n", region->iova); + else + ASSERT_EQ(rc, 0); + ASSERT_EQ(region->iova, to_iova(self->device, region->vaddr)); =20 rc =3D __vfio_pci_dma_unmap_all(self->device, &unmapped); base-commit: a1388fcb52fcad3e0b06e2cdd0ed757a82a5be30 --=20 2.51.2.1041.gc1ab5b90ca-goog