From: Feng Wu <feng.wu@intel.com>
To: xen-devel@lists.xen.org
Cc: Feng Wu <feng.wu@intel.com>, Jan Beulich <jbeulich@suse.com>
Subject: [PATCH v14 2/2] Add a command line parameter for VT-d posted-interrupts
Date: Mon, 29 Feb 2016 11:00:16 +0800 [thread overview]
Message-ID: <1456714816-3876-3-git-send-email-feng.wu@intel.com> (raw)
In-Reply-To: <1456714816-3876-1-git-send-email-feng.wu@intel.com>
Enable VT-d Posted-Interrupts and add a command line
parameter for it.
CC: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Feng Wu <feng.wu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
---
docs/misc/xen-command-line.markdown | 9 ++++++++-
xen/drivers/passthrough/iommu.c | 3 +++
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/docs/misc/xen-command-line.markdown b/docs/misc/xen-command-line.markdown
index 467dc8f..ea1d60d 100644
--- a/docs/misc/xen-command-line.markdown
+++ b/docs/misc/xen-command-line.markdown
@@ -868,7 +868,7 @@ debug hypervisor only).
> Default: `new` unless directed-EOI is supported
### iommu
-> `= List of [ <boolean> | force | required | intremap | qinval | snoop | sharept | dom0-passthrough | dom0-strict | amd-iommu-perdev-intremap | workaround_bios_bug | igfx | verbose | debug ]`
+> `= List of [ <boolean> | force | required | intremap | intpost | qinval | snoop | sharept | dom0-passthrough | dom0-strict | amd-iommu-perdev-intremap | workaround_bios_bug | igfx | verbose | debug ]`
> Sub-options:
@@ -895,6 +895,13 @@ debug hypervisor only).
>> Control the use of interrupt remapping (DMA remapping will always be enabled
>> if IOMMU functionality is enabled).
+> `intpost`
+
+> Default: `false`
+
+>> Control the use of interrupt posting, which depends on the availability of
+>> interrupt remapping.
+
> `qinval` (VT-d)
> Default: `true`
diff --git a/xen/drivers/passthrough/iommu.c b/xen/drivers/passthrough/iommu.c
index 0b2abf4..50d74a5 100644
--- a/xen/drivers/passthrough/iommu.c
+++ b/xen/drivers/passthrough/iommu.c
@@ -32,6 +32,7 @@ static void iommu_dump_p2m_table(unsigned char key);
* off|no|false|disable Disable IOMMU (default)
* force|required Don't boot unless IOMMU is enabled
* no-intremap Disable interrupt remapping
+ * no-intpost Disable VT-d Interrupt posting
* verbose Be more verbose
* debug Enable debugging messages and checks
* workaround_bios_bug Workaround some bios issue to still enable
@@ -105,6 +106,8 @@ static void __init parse_iommu_param(char *s)
iommu_qinval = val;
else if ( !strcmp(s, "intremap") )
iommu_intremap = val;
+ else if ( !strcmp(s, "intpost") )
+ iommu_intpost = val;
else if ( !strcmp(s, "debug") )
{
iommu_debug = val;
--
2.1.0
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prev parent reply other threads:[~2016-02-29 3:00 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-29 3:00 [PATCH v14 0/2] Add VT-d Posted-Interrupts support Feng Wu
2016-02-29 3:00 ` [PATCH v14 1/2] vmx: VT-d posted-interrupt core logic handling Feng Wu
2016-02-29 13:33 ` Jan Beulich
2016-02-29 13:52 ` Dario Faggioli
2016-03-01 5:39 ` Wu, Feng
2016-03-01 9:24 ` Jan Beulich
2016-03-01 10:16 ` George Dunlap
2016-03-01 13:06 ` Wu, Feng
2016-03-01 5:24 ` Tian, Kevin
2016-03-01 5:39 ` Wu, Feng
2016-03-04 22:00 ` Ideas " Konrad Rzeszutek Wilk
2016-03-07 11:21 ` George Dunlap
2016-03-07 15:53 ` Konrad Rzeszutek Wilk
2016-03-07 16:19 ` Dario Faggioli
2016-03-07 20:23 ` Konrad Rzeszutek Wilk
2016-03-08 12:02 ` George Dunlap
2016-03-08 13:10 ` Wu, Feng
2016-03-08 14:42 ` George Dunlap
2016-03-08 15:42 ` Jan Beulich
2016-03-08 17:05 ` George Dunlap
2016-03-08 17:26 ` Jan Beulich
2016-03-08 18:38 ` George Dunlap
2016-03-09 5:06 ` Wu, Feng
2016-03-09 13:39 ` Jan Beulich
2016-03-09 16:01 ` George Dunlap
2016-03-09 16:31 ` Jan Beulich
2016-03-09 16:23 ` On setting clear criteria for declaring a feature acceptable (was "vmx: VT-d posted-interrupt core logic handling") George Dunlap
2016-03-09 16:58 ` On setting clear criteria for declaring a feature acceptable Jan Beulich
2016-03-09 18:02 ` On setting clear criteria for declaring a feature acceptable (was "vmx: VT-d posted-interrupt core logic handling") David Vrabel
2016-03-10 1:15 ` Wu, Feng
2016-03-10 9:30 ` George Dunlap
2016-03-10 5:09 ` Tian, Kevin
2016-03-10 8:07 ` vmx: VT-d posted-interrupt core logic handling Jan Beulich
2016-03-10 8:43 ` Tian, Kevin
2016-03-10 9:05 ` Jan Beulich
2016-03-10 9:20 ` Tian, Kevin
2016-03-10 10:05 ` Tian, Kevin
2016-03-10 10:18 ` Jan Beulich
2016-03-10 10:35 ` David Vrabel
2016-03-10 10:46 ` George Dunlap
2016-03-10 11:16 ` David Vrabel
2016-03-10 11:49 ` George Dunlap
2016-03-10 13:24 ` Jan Beulich
2016-03-10 11:00 ` George Dunlap
2016-03-10 11:21 ` Dario Faggioli
2016-03-10 13:36 ` Wu, Feng
2016-05-17 13:27 ` Konrad Rzeszutek Wilk
2016-05-19 7:22 ` Wu, Feng
2016-03-10 10:41 ` George Dunlap
2016-03-09 5:22 ` Ideas Re: [PATCH v14 1/2] " Wu, Feng
2016-03-09 11:25 ` George Dunlap
2016-03-09 12:06 ` Wu, Feng
2016-02-29 3:00 ` Feng Wu [this message]
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