From: Joerg Roedel <joerg.roedel@amd.com>
To: <iommu@lists.linux-foundation.org>, <linux-kernel@vger.kernel.org>
Cc: Joerg Roedel <joerg.roedel@amd.com>
Subject: [PATCH 06/16] iommu/amd: Make sure IOMMU is not considered to translate itself
Date: Fri, 28 Sep 2012 14:23:56 +0200 [thread overview]
Message-ID: <1348835046-3262-7-git-send-email-joerg.roedel@amd.com> (raw)
In-Reply-To: <1348835046-3262-1-git-send-email-joerg.roedel@amd.com>
The IVRS table usually includes the IOMMU device. But the
IOMMU does never translate itself, so make sure the IOMMU
driver knows this.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
drivers/iommu/amd_iommu_init.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 8e9d71c..202b2b7 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -1018,6 +1018,13 @@ static int __init init_iommu_one(struct amd_iommu *iommu, struct ivhd_header *h)
ret = init_iommu_from_acpi(iommu, h);
if (ret)
return ret;
+
+ /*
+ * Make sure IOMMU is not considered to translate itself. The IVRS
+ * table tells us so, but this is a lie!
+ */
+ amd_iommu_rlookup_table[iommu->devid] = NULL;
+
init_iommu_devices(iommu);
return 0;
--
1.7.9.5
next prev parent reply other threads:[~2012-09-28 12:24 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-28 12:23 [PATCH 0/16] Interrupt remapping support for AMD IOMMU Joerg Roedel
2012-09-28 12:23 ` [PATCH 01/16] iommu/amd: Keep track of HPET and IOAPIC device ids Joerg Roedel
2012-09-28 14:08 ` Konrad Rzeszutek Wilk
2012-09-28 14:35 ` Joerg Roedel
2012-09-28 12:23 ` [PATCH 02/16] iommu/amd: Add slab-cache for irq remapping tables Joerg Roedel
2012-09-28 12:23 ` [PATCH 03/16] iommu/amd: Allocate data structures to keep track of " Joerg Roedel
2012-09-28 22:57 ` Shuah Khan
2012-09-28 12:23 ` [PATCH 04/16] iommu/amd: Check if IOAPIC information is correct Joerg Roedel
2012-09-28 14:16 ` Konrad Rzeszutek Wilk
2012-09-28 14:37 ` Joerg Roedel
2012-09-28 12:23 ` [PATCH 05/16] iommu/amd: Split device table initialization into irq and dma part Joerg Roedel
2012-09-28 14:17 ` Konrad Rzeszutek Wilk
2012-09-28 14:25 ` Joerg Roedel
2012-09-28 15:00 ` Konrad Rzeszutek Wilk
2012-09-28 14:59 ` Joerg Roedel
2012-09-28 12:23 ` Joerg Roedel [this message]
2012-09-28 12:23 ` [PATCH 07/16] iommu/amd: Add IRTE invalidation routine Joerg Roedel
2012-09-28 14:20 ` Konrad Rzeszutek Wilk
2012-09-28 15:36 ` Joerg Roedel
2012-09-28 12:23 ` [PATCH 08/16] iommu/amd: Add routines to manage irq remapping tables Joerg Roedel
2012-09-28 14:40 ` Konrad Rzeszutek Wilk
2012-09-28 15:01 ` Joerg Roedel
2012-09-28 12:23 ` [PATCH 09/16] iommu/amd: Add IOAPIC remapping routines Joerg Roedel
2012-09-28 14:45 ` Konrad Rzeszutek Wilk
[not found] ` <6d716497-bcf6-4d71-88a3-6ec772a4d396@sausexedgep01.amd.com>
2012-10-01 8:40 ` Joerg Roedel
2012-10-01 13:47 ` Konrad Rzeszutek Wilk
2012-10-01 16:33 ` Joerg Roedel
2012-10-01 16:34 ` Konrad Rzeszutek Wilk
2012-09-28 12:24 ` [PATCH 10/16] iommu/amd: Implement MSI routines for interrupt remapping Joerg Roedel
2012-09-28 14:49 ` Konrad Rzeszutek Wilk
2012-09-28 15:04 ` Joerg Roedel
2012-09-28 12:24 ` [PATCH 11/16] iommu/amd: Add call-back routine for HPET MSI Joerg Roedel
2012-09-28 12:24 ` [PATCH 12/16] iommu/amd: Add initialization routines for AMD interrupt remapping Joerg Roedel
2012-09-28 23:18 ` Shuah Khan
2012-10-01 8:05 ` Joerg Roedel
2012-10-01 16:02 ` Shuah Khan
2012-09-28 12:24 ` [PATCH 13/16] iommu/amd: Make sure irq remapping still works on dma init failure Joerg Roedel
2012-09-28 12:24 ` [PATCH 14/16] iommu/irq: Use amd_iommu_irq_ops if supported Joerg Roedel
2012-09-28 23:39 ` Shuah Khan
2012-10-01 8:08 ` Joerg Roedel
2012-10-01 16:04 ` Shuah Khan
2012-09-28 12:24 ` [PATCH 15/16] iommu/amd: Print message to system log when irq remapping is enabled Joerg Roedel
2012-09-28 12:24 ` [PATCH 16/16] iommu/amd: Report irq remapping through IOMMU-API Joerg Roedel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1348835046-3262-7-git-send-email-joerg.roedel@amd.com \
--to=joerg.roedel@amd.com \
--cc=iommu@lists.linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome