From: Tiejun Chen <tiejun.chen@intel.com>
To: JBeulich@suse.com, ian.jackson@eu.citrix.com,
stefano.stabellini@eu.citrix.com, ian.campbell@citrix.com,
yang.z.zhang@intel.com, kevin.tian@intel.com,
andrew.cooper3@citrix.com
Cc: xen-devel@lists.xen.org
Subject: [v5][PATCH 10/10] xen:vtd: make USB RMRR mapping safe
Date: Tue, 26 Aug 2014 19:03:00 +0800 [thread overview]
Message-ID: <1409050980-21933-11-git-send-email-tiejun.chen@intel.com> (raw)
In-Reply-To: <1409050980-21933-1-git-send-email-tiejun.chen@intel.com>
We already reserve all RMRR mappings so USB should be safe with
RMRR.
Signed-off-by: Tiejun Chen <tiejun.chen@intel.com>
---
xen/drivers/passthrough/vtd/iommu.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/xen/drivers/passthrough/vtd/iommu.c b/xen/drivers/passthrough/vtd/iommu.c
index 042b882..319ae05 100644
--- a/xen/drivers/passthrough/vtd/iommu.c
+++ b/xen/drivers/passthrough/vtd/iommu.c
@@ -2273,16 +2273,8 @@ static int intel_iommu_assign_device(
if ( ret )
goto done;
- /* FIXME: Because USB RMRR conflicts with guest bios region,
- * ignore USB RMRR temporarily.
- */
seg = pdev->seg;
bus = pdev->bus;
- if ( is_usb_device(seg, bus, pdev->devfn) )
- {
- ret = 0;
- goto done;
- }
/* Setup rmrr identity mapping */
for_each_rmrr_device( rmrr, bdf, i )
--
1.9.1
prev parent reply other threads:[~2014-08-26 11:03 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-26 11:02 [v5][PATCH 0/10] xen: reserve RMRR to avoid conflicting MMIO/RAM Tiejun Chen
2014-08-26 11:02 ` [v5][PATCH 01/10] xen:vtd:rmrr: export acpi_rmrr_units Tiejun Chen
2014-08-26 11:02 ` [v5][PATCH 02/10] xen:vtd:rmrr: introduce acpi_rmrr_unit_entries Tiejun Chen
2014-08-26 11:02 ` [v5][PATCH 03/10] xen:x86: define a new hypercall to get RMRR mappings Tiejun Chen
2014-08-26 12:02 ` Andrew Cooper
2014-08-26 12:37 ` Jan Beulich
2014-08-27 1:37 ` Chen, Tiejun
2014-08-27 6:51 ` Jan Beulich
2014-08-27 7:21 ` Chen, Tiejun
2014-08-28 2:24 ` Chen, Tiejun
2014-08-28 6:50 ` Jan Beulich
2014-08-28 7:09 ` Chen, Tiejun
2014-08-28 7:19 ` Chen, Tiejun
2014-08-28 7:29 ` Chen, Tiejun
2014-08-28 7:44 ` Jan Beulich
2014-08-29 3:02 ` Chen, Tiejun
2014-08-29 9:18 ` Jan Beulich
2014-09-01 9:44 ` Chen, Tiejun
2014-09-01 10:29 ` Jan Beulich
2014-09-02 9:59 ` Chen, Tiejun
2014-09-02 10:15 ` Jan Beulich
2014-09-02 11:10 ` Chen, Tiejun
2014-09-02 13:15 ` Jan Beulich
2014-09-03 1:45 ` Chen, Tiejun
2014-09-03 8:31 ` Chen, Tiejun
2014-09-03 8:41 ` Jan Beulich
2014-09-03 8:59 ` Chen, Tiejun
2014-09-03 9:01 ` Chen, Tiejun
2014-09-03 9:54 ` Chen, Tiejun
2014-09-03 12:54 ` Jan Beulich
2014-09-04 1:15 ` Chen, Tiejun
2014-09-03 8:35 ` Jan Beulich
2014-08-27 1:15 ` Chen, Tiejun
2014-09-02 8:25 ` Jan Beulich
2014-08-26 11:02 ` [v5][PATCH 04/10] tools:libxc: introduce hypercall for xc_reserved_device_memory_map Tiejun Chen
2014-08-26 11:02 ` [v5][PATCH 05/10] tools:libxc: check if mmio BAR is out of RMRR mappings Tiejun Chen
2014-08-26 11:02 ` [v5][PATCH 06/10] hvm_info_table: introduce nr_reserved_device_memory_map Tiejun Chen
2014-09-02 8:34 ` Jan Beulich
2014-09-04 2:07 ` Chen, Tiejun
2014-09-04 6:32 ` Jan Beulich
2014-09-04 6:55 ` Chen, Tiejun
[not found] ` <54082E3B0200007800030BCB@mail.emea.novell.com>
2014-09-09 6:40 ` Chen, Tiejun
2014-08-26 11:02 ` [v5][PATCH 07/10] xen:x86:: support xc_reserved_device_memory_map in compat case Tiejun Chen
2014-09-02 8:35 ` Jan Beulich
2014-09-04 2:13 ` Chen, Tiejun
2014-08-26 11:02 ` [v5][PATCH 08/10] tools:firmware:hvmloader: introduce hypercall for xc_reserved_device_memory_map Tiejun Chen
2014-09-02 8:37 ` Jan Beulich
2014-08-26 11:02 ` [v5][PATCH 09/10] tools:firmware:hvmloader: check to reserve RMRR mappings in e820 Tiejun Chen
2014-09-02 8:47 ` Jan Beulich
2014-09-04 3:04 ` Chen, Tiejun
2014-09-04 4:32 ` Chen, Tiejun
2014-09-04 6:36 ` Jan Beulich
2014-08-26 11:03 ` Tiejun Chen [this message]
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