From: Sebastian Ott via iommu <iommu@lists.linux-foundation.org>
To: Joerg Roedel <joro@8bytes.org>, <iommu@lists.linux-foundation.org>
Cc: Benjamin Serebrin <serebrin@amazon.com>,
Filippo Sironi <sironi@amazon.de>,
Sebastian Ott <sebott@amazon.de>
Subject: [PATCH v2 2/3] iommu/amd: Restrict aperture for domains to conform with IVRS
Date: Wed, 1 Jul 2020 00:46:33 +0200 [thread overview]
Message-ID: <20200630224634.319-3-sebott@amazon.de> (raw)
In-Reply-To: <20200630224634.319-1-sebott@amazon.de>
The IVRS ACPI table specifies maximum address sizes for I/O virtual
addresses. When allocating new protection domains that perform
translation, propagate these limits as the domain's geometry / aperture.
Based on prior work by Marius Hillenbrand.
Signed-off-by: Sebastian Ott <sebott@amazon.de>
Cc: Benjamin Serebrin <serebrin@amazon.com>
Cc: Filippo Sironi <sironi@amazon.de>
CR: https://code.amazon.com/reviews/CR-26408353
---
drivers/iommu/amd/iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index acab35220d98..b3f79820fd6d 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -2382,7 +2382,7 @@ static struct iommu_domain *amd_iommu_domain_alloc(unsigned type)
return NULL;
domain->domain.geometry.aperture_start = 0;
- domain->domain.geometry.aperture_end = ~0ULL;
+ domain->domain.geometry.aperture_end = amd_iommu_max_va;
domain->domain.geometry.force_aperture = true;
if (type == IOMMU_DOMAIN_DMA &&
--
2.17.1
Amazon Development Center Germany GmbH
Krausenstr. 38
10117 Berlin
Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss
Eingetragen am Amtsgericht Charlottenburg unter HRB 149173 B
Sitz: Berlin
Ust-ID: DE 289 237 879
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next prev parent reply other threads:[~2020-06-30 22:47 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-05 14:56 [PATCH 0/3] iommu/amd: I/O VA address limits Sebastian Ott via iommu
2020-06-05 14:56 ` [PATCH 1/3] iommu/amd: Parse supported address sizes from IVRS Sebastian Ott via iommu
2020-06-05 14:56 ` [PATCH 2/3] iommu/amd: Restrict aperture for domains to conform with IVRS Sebastian Ott via iommu
2020-06-05 14:56 ` [PATCH 3/3] iommu/amd: Actually enforce geometry aperture Sebastian Ott via iommu
2020-06-30 9:30 ` Joerg Roedel
2020-06-30 22:46 ` [PATCH v2 0/3] iommu/amd: I/O VA address limits Sebastian Ott via iommu
2020-06-30 22:46 ` [PATCH v2 1/3] iommu/amd: Parse supported address sizes from IVRS Sebastian Ott via iommu
2020-06-30 22:46 ` Sebastian Ott via iommu [this message]
2020-06-30 22:46 ` [PATCH v2 3/3] iommu/amd: Actually enforce geometry aperture Sebastian Ott via iommu
2020-07-10 12:31 ` [PATCH v2 0/3] iommu/amd: I/O VA address limits Joerg Roedel
2020-07-17 9:20 ` Sebastian Ott via iommu
2020-07-17 9:47 ` Robin Murphy
2020-07-17 13:22 ` Sironi, Filippo via iommu
2020-07-17 14:36 ` Robin Murphy
2020-07-17 15:15 ` Sironi, Filippo via iommu
2020-07-22 12:19 ` joro
2020-07-22 12:34 ` Sironi, Filippo via iommu
2020-07-22 14:00 ` joro
2020-06-24 16:09 ` [PATCH " Sebastian Ott via iommu
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