* [PATCH v2] xen/iommu: fix usage of shared EPT/IOMMU page tables on PVH guests
@ 2015-02-27 11:33 Roger Pau Monne
2015-03-04 16:53 ` David Vrabel
` (3 more replies)
0 siblings, 4 replies; 10+ messages in thread
From: Roger Pau Monne @ 2015-02-27 11:33 UTC (permalink / raw)
To: xen-devel
Cc: Kevin Tian, Suravee Suthikulpanit, Aravind Gopalakrishnan,
Jan Beulich, Yang Zhang, Roger Pau Monne
iommu_share_p2m_table should not prevent PVH guests from using a shared page
table between the IOMMU and EPT. Clean the code by removing the asserts in
the vendor specific implementations (amd_iommu_share_p2m, iommu_set_pgd),
and moving the hap_enabled assert to the caller (iommu_share_p2m_table).
Also fix another incorrect usage of is_hvm_domain usage in
arch_iommu_populate_page_table. This has not given problems so far because
all the pages in PVH guests are of type PGT_writable_page.
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Cc: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Cc: Jan Beulich <jbeulich@suse.com>
Cc: Yang Zhang <yang.z.zhang@intel.com>
Cc: Kevin Tian <kevin.tian@intel.com>
---
Changes since v1:
- Reword commit message.
- Move the hap_enabled assert from vendor implementation to the generic
code.
- Remove the has_hvm_container_domain condition from iommu_share_p2m_table,
hap_enabled is more restrictive.
---
xen/drivers/passthrough/amd/iommu_map.c | 2 --
xen/drivers/passthrough/iommu.c | 3 ++-
xen/drivers/passthrough/vtd/iommu.c | 2 --
xen/drivers/passthrough/x86/iommu.c | 2 +-
4 files changed, 3 insertions(+), 6 deletions(-)
diff --git a/xen/drivers/passthrough/amd/iommu_map.c b/xen/drivers/passthrough/amd/iommu_map.c
index a8c60ec..31dc05d 100644
--- a/xen/drivers/passthrough/amd/iommu_map.c
+++ b/xen/drivers/passthrough/amd/iommu_map.c
@@ -785,8 +785,6 @@ void amd_iommu_share_p2m(struct domain *d)
struct page_info *p2m_table;
mfn_t pgd_mfn;
- ASSERT( is_hvm_domain(d) && d->arch.hvm_domain.hap_enabled );
-
if ( !iommu_use_hap_pt(d) )
return;
diff --git a/xen/drivers/passthrough/iommu.c b/xen/drivers/passthrough/iommu.c
index cc12735..7fcbbb1 100644
--- a/xen/drivers/passthrough/iommu.c
+++ b/xen/drivers/passthrough/iommu.c
@@ -332,7 +332,8 @@ void iommu_share_p2m_table(struct domain* d)
{
const struct iommu_ops *ops = iommu_get_ops();
- if ( iommu_enabled && is_hvm_domain(d) )
+ ASSERT( hap_enabled(d) );
+ if ( iommu_enabled )
ops->share_p2m(d);
}
diff --git a/xen/drivers/passthrough/vtd/iommu.c b/xen/drivers/passthrough/vtd/iommu.c
index 2e113d7..ff542cb 100644
--- a/xen/drivers/passthrough/vtd/iommu.c
+++ b/xen/drivers/passthrough/vtd/iommu.c
@@ -1788,8 +1788,6 @@ static void iommu_set_pgd(struct domain *d)
struct hvm_iommu *hd = domain_hvm_iommu(d);
mfn_t pgd_mfn;
- ASSERT( is_hvm_domain(d) && d->arch.hvm_domain.hap_enabled );
-
if ( !iommu_use_hap_pt(d) )
return;
diff --git a/xen/drivers/passthrough/x86/iommu.c b/xen/drivers/passthrough/x86/iommu.c
index 52d8948..9eb8d33 100644
--- a/xen/drivers/passthrough/x86/iommu.c
+++ b/xen/drivers/passthrough/x86/iommu.c
@@ -56,7 +56,7 @@ int arch_iommu_populate_page_table(struct domain *d)
while ( !rc && (page = page_list_remove_head(&d->page_list)) )
{
- if ( is_hvm_domain(d) ||
+ if ( has_hvm_container_domain(d) ||
(page->u.inuse.type_info & PGT_type_mask) == PGT_writable_page )
{
BUG_ON(SHARED_M2P(mfn_to_gmfn(d, page_to_mfn(page))));
--
1.9.3 (Apple Git-50)
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
^ permalink raw reply related [flat|nested] 10+ messages in thread
* Re: [PATCH v2] xen/iommu: fix usage of shared EPT/IOMMU page tables on PVH guests
2015-02-27 11:33 [PATCH v2] xen/iommu: fix usage of shared EPT/IOMMU page tables on PVH guests Roger Pau Monne
@ 2015-03-04 16:53 ` David Vrabel
2015-03-05 9:49 ` Tim Deegan
` (2 subsequent siblings)
3 siblings, 0 replies; 10+ messages in thread
From: David Vrabel @ 2015-03-04 16:53 UTC (permalink / raw)
To: Roger Pau Monne, xen-devel
Cc: Yang Zhang, Kevin Tian, Aravind Gopalakrishnan, Jan Beulich,
Suravee Suthikulpanit
On 27/02/15 11:33, Roger Pau Monne wrote:
> iommu_share_p2m_table should not prevent PVH guests from using a shared page
> table between the IOMMU and EPT. Clean the code by removing the asserts in
> the vendor specific implementations (amd_iommu_share_p2m, iommu_set_pgd),
> and moving the hap_enabled assert to the caller (iommu_share_p2m_table).
>
> Also fix another incorrect usage of is_hvm_domain usage in
> arch_iommu_populate_page_table. This has not given problems so far because
> all the pages in PVH guests are of type PGT_writable_page.
dom0 PVH failed to boot on my test system without this patch so:
Tested-by: David Vrabel <david.vrabel@citrix.com>
Thanks.
David
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v2] xen/iommu: fix usage of shared EPT/IOMMU page tables on PVH guests
2015-02-27 11:33 [PATCH v2] xen/iommu: fix usage of shared EPT/IOMMU page tables on PVH guests Roger Pau Monne
2015-03-04 16:53 ` David Vrabel
@ 2015-03-05 9:49 ` Tim Deegan
2015-03-09 3:30 ` Tian, Kevin
2015-03-10 12:51 ` Julien Grall
3 siblings, 0 replies; 10+ messages in thread
From: Tim Deegan @ 2015-03-05 9:49 UTC (permalink / raw)
To: Roger Pau Monne
Cc: Kevin Tian, Suravee Suthikulpanit, Aravind Gopalakrishnan,
Jan Beulich, Yang Zhang, xen-devel
At 12:33 +0100 on 27 Feb (1425036812), Roger Pau Monne wrote:
> iommu_share_p2m_table should not prevent PVH guests from using a shared page
> table between the IOMMU and EPT. Clean the code by removing the asserts in
> the vendor specific implementations (amd_iommu_share_p2m, iommu_set_pgd),
> and moving the hap_enabled assert to the caller (iommu_share_p2m_table).
>
> Also fix another incorrect usage of is_hvm_domain usage in
> arch_iommu_populate_page_table. This has not given problems so far because
> all the pages in PVH guests are of type PGT_writable_page.
>
> Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Tim Deegan <tim@xen.org>
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v2] xen/iommu: fix usage of shared EPT/IOMMU page tables on PVH guests
2015-02-27 11:33 [PATCH v2] xen/iommu: fix usage of shared EPT/IOMMU page tables on PVH guests Roger Pau Monne
2015-03-04 16:53 ` David Vrabel
2015-03-05 9:49 ` Tim Deegan
@ 2015-03-09 3:30 ` Tian, Kevin
2015-03-09 9:02 ` Roger Pau Monné
2015-03-10 12:51 ` Julien Grall
3 siblings, 1 reply; 10+ messages in thread
From: Tian, Kevin @ 2015-03-09 3:30 UTC (permalink / raw)
To: Roger Pau Monne, xen-devel
Cc: Zhang, Yang Z, Aravind Gopalakrishnan, Jan Beulich,
Suravee Suthikulpanit
> From: Roger Pau Monne [mailto:roger.pau@citrix.com]
> Sent: Friday, February 27, 2015 7:34 PM
>
> iommu_share_p2m_table should not prevent PVH guests from using a shared
> page
> table between the IOMMU and EPT. Clean the code by removing the asserts in
> the vendor specific implementations (amd_iommu_share_p2m,
> iommu_set_pgd),
> and moving the hap_enabled assert to the caller (iommu_share_p2m_table).
>
> Also fix another incorrect usage of is_hvm_domain usage in
> arch_iommu_populate_page_table. This has not given problems so far
> because
> all the pages in PVH guests are of type PGT_writable_page.
>
> Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
> Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
> Cc: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
> Cc: Jan Beulich <jbeulich@suse.com>
> Cc: Yang Zhang <yang.z.zhang@intel.com>
> Cc: Kevin Tian <kevin.tian@intel.com>
Acked-by: Kevin Tian <kevin.tian@intel.com>
btw, does this patch fix your earlier iommu faults with PVH Dom0?
Thanks
Kevin
> ---
> Changes since v1:
> - Reword commit message.
> - Move the hap_enabled assert from vendor implementation to the generic
> code.
> - Remove the has_hvm_container_domain condition from
> iommu_share_p2m_table,
> hap_enabled is more restrictive.
> ---
> xen/drivers/passthrough/amd/iommu_map.c | 2 --
> xen/drivers/passthrough/iommu.c | 3 ++-
> xen/drivers/passthrough/vtd/iommu.c | 2 --
> xen/drivers/passthrough/x86/iommu.c | 2 +-
> 4 files changed, 3 insertions(+), 6 deletions(-)
>
> diff --git a/xen/drivers/passthrough/amd/iommu_map.c
> b/xen/drivers/passthrough/amd/iommu_map.c
> index a8c60ec..31dc05d 100644
> --- a/xen/drivers/passthrough/amd/iommu_map.c
> +++ b/xen/drivers/passthrough/amd/iommu_map.c
> @@ -785,8 +785,6 @@ void amd_iommu_share_p2m(struct domain *d)
> struct page_info *p2m_table;
> mfn_t pgd_mfn;
>
> - ASSERT( is_hvm_domain(d) && d->arch.hvm_domain.hap_enabled );
> -
> if ( !iommu_use_hap_pt(d) )
> return;
>
> diff --git a/xen/drivers/passthrough/iommu.c
> b/xen/drivers/passthrough/iommu.c
> index cc12735..7fcbbb1 100644
> --- a/xen/drivers/passthrough/iommu.c
> +++ b/xen/drivers/passthrough/iommu.c
> @@ -332,7 +332,8 @@ void iommu_share_p2m_table(struct domain* d)
> {
> const struct iommu_ops *ops = iommu_get_ops();
>
> - if ( iommu_enabled && is_hvm_domain(d) )
> + ASSERT( hap_enabled(d) );
> + if ( iommu_enabled )
> ops->share_p2m(d);
> }
>
> diff --git a/xen/drivers/passthrough/vtd/iommu.c
> b/xen/drivers/passthrough/vtd/iommu.c
> index 2e113d7..ff542cb 100644
> --- a/xen/drivers/passthrough/vtd/iommu.c
> +++ b/xen/drivers/passthrough/vtd/iommu.c
> @@ -1788,8 +1788,6 @@ static void iommu_set_pgd(struct domain *d)
> struct hvm_iommu *hd = domain_hvm_iommu(d);
> mfn_t pgd_mfn;
>
> - ASSERT( is_hvm_domain(d) && d->arch.hvm_domain.hap_enabled );
> -
> if ( !iommu_use_hap_pt(d) )
> return;
>
> diff --git a/xen/drivers/passthrough/x86/iommu.c
> b/xen/drivers/passthrough/x86/iommu.c
> index 52d8948..9eb8d33 100644
> --- a/xen/drivers/passthrough/x86/iommu.c
> +++ b/xen/drivers/passthrough/x86/iommu.c
> @@ -56,7 +56,7 @@ int arch_iommu_populate_page_table(struct domain *d)
>
> while ( !rc && (page = page_list_remove_head(&d->page_list)) )
> {
> - if ( is_hvm_domain(d) ||
> + if ( has_hvm_container_domain(d) ||
> (page->u.inuse.type_info & PGT_type_mask) ==
> PGT_writable_page )
> {
> BUG_ON(SHARED_M2P(mfn_to_gmfn(d,
> page_to_mfn(page))));
> --
> 1.9.3 (Apple Git-50)
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v2] xen/iommu: fix usage of shared EPT/IOMMU page tables on PVH guests
2015-03-09 3:30 ` Tian, Kevin
@ 2015-03-09 9:02 ` Roger Pau Monné
0 siblings, 0 replies; 10+ messages in thread
From: Roger Pau Monné @ 2015-03-09 9:02 UTC (permalink / raw)
To: Tian, Kevin, xen-devel
Cc: Zhang, Yang Z, Aravind Gopalakrishnan, Jan Beulich,
Suravee Suthikulpanit
El 09/03/15 a les 4.30, Tian, Kevin ha escrit:
>> From: Roger Pau Monne [mailto:roger.pau@citrix.com]
>> Sent: Friday, February 27, 2015 7:34 PM
>>
>> iommu_share_p2m_table should not prevent PVH guests from using a shared
>> page
>> table between the IOMMU and EPT. Clean the code by removing the asserts in
>> the vendor specific implementations (amd_iommu_share_p2m,
>> iommu_set_pgd),
>> and moving the hap_enabled assert to the caller (iommu_share_p2m_table).
>>
>> Also fix another incorrect usage of is_hvm_domain usage in
>> arch_iommu_populate_page_table. This has not given problems so far
>> because
>> all the pages in PVH guests are of type PGT_writable_page.
>>
>> Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
>> Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
>> Cc: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
>> Cc: Jan Beulich <jbeulich@suse.com>
>> Cc: Yang Zhang <yang.z.zhang@intel.com>
>> Cc: Kevin Tian <kevin.tian@intel.com>
>
> Acked-by: Kevin Tian <kevin.tian@intel.com>
>
> btw, does this patch fix your earlier iommu faults with PVH Dom0?
Yes, it fixes booting a PVH Dom0 on hosts that share the page tables
between EPT and the IOMMU(s).
Roger.
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v2] xen/iommu: fix usage of shared EPT/IOMMU page tables on PVH guests
2015-02-27 11:33 [PATCH v2] xen/iommu: fix usage of shared EPT/IOMMU page tables on PVH guests Roger Pau Monne
` (2 preceding siblings ...)
2015-03-09 3:30 ` Tian, Kevin
@ 2015-03-10 12:51 ` Julien Grall
2015-03-10 13:06 ` Jan Beulich
3 siblings, 1 reply; 10+ messages in thread
From: Julien Grall @ 2015-03-10 12:51 UTC (permalink / raw)
To: Roger Pau Monne, xen-devel
Cc: Yang Zhang, Kevin Tian, Aravind Gopalakrishnan, Jan Beulich,
Suravee Suthikulpanit
Hi,
On 27/02/15 11:33, Roger Pau Monne wrote:
> diff --git a/xen/drivers/passthrough/iommu.c b/xen/drivers/passthrough/iommu.c
> index cc12735..7fcbbb1 100644
> --- a/xen/drivers/passthrough/iommu.c
> +++ b/xen/drivers/passthrough/iommu.c
> @@ -332,7 +332,8 @@ void iommu_share_p2m_table(struct domain* d)
> {
> const struct iommu_ops *ops = iommu_get_ops();
>
> - if ( iommu_enabled && is_hvm_domain(d) )
> + ASSERT( hap_enabled(d) );
This line is breaking compilation on ARM.
Shouldn't it be replaced by iommu_use_hap_pt?
> + if ( iommu_enabled )
Regards,
--
Julien Grall
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v2] xen/iommu: fix usage of shared EPT/IOMMU page tables on PVH guests
2015-03-10 12:51 ` Julien Grall
@ 2015-03-10 13:06 ` Jan Beulich
2015-03-10 13:18 ` Julien Grall
0 siblings, 1 reply; 10+ messages in thread
From: Jan Beulich @ 2015-03-10 13:06 UTC (permalink / raw)
To: Julien Grall
Cc: Kevin Tian, Aravind Gopalakrishnan, Suravee Suthikulpanit,
Yang Zhang, xen-devel, Roger Pau Monne
>>> On 10.03.15 at 13:51, <julien.grall@linaro.org> wrote:
> Hi,
>
> On 27/02/15 11:33, Roger Pau Monne wrote:
>> diff --git a/xen/drivers/passthrough/iommu.c
> b/xen/drivers/passthrough/iommu.c
>> index cc12735..7fcbbb1 100644
>> --- a/xen/drivers/passthrough/iommu.c
>> +++ b/xen/drivers/passthrough/iommu.c
>> @@ -332,7 +332,8 @@ void iommu_share_p2m_table(struct domain* d)
>> {
>> const struct iommu_ops *ops = iommu_get_ops();
>>
>> - if ( iommu_enabled && is_hvm_domain(d) )
>> + ASSERT( hap_enabled(d) );
>
> This line is breaking compilation on ARM.
>
> Shouldn't it be replaced by iommu_use_hap_pt?
No, that's a different thing. But shouldn't ARM have a stub
hap_enabled() evaluating to constant true?
Jan
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v2] xen/iommu: fix usage of shared EPT/IOMMU page tables on PVH guests
2015-03-10 13:06 ` Jan Beulich
@ 2015-03-10 13:18 ` Julien Grall
2015-03-10 13:35 ` Jan Beulich
0 siblings, 1 reply; 10+ messages in thread
From: Julien Grall @ 2015-03-10 13:18 UTC (permalink / raw)
To: Jan Beulich
Cc: Kevin Tian, Aravind Gopalakrishnan, Suravee Suthikulpanit,
Yang Zhang, xen-devel, Roger Pau Monne
On 10/03/15 13:06, Jan Beulich wrote:
>>>> On 10.03.15 at 13:51, <julien.grall@linaro.org> wrote:
>> Hi,
>>
>> On 27/02/15 11:33, Roger Pau Monne wrote:
>>> diff --git a/xen/drivers/passthrough/iommu.c
>> b/xen/drivers/passthrough/iommu.c
>>> index cc12735..7fcbbb1 100644
>>> --- a/xen/drivers/passthrough/iommu.c
>>> +++ b/xen/drivers/passthrough/iommu.c
>>> @@ -332,7 +332,8 @@ void iommu_share_p2m_table(struct domain* d)
>>> {
>>> const struct iommu_ops *ops = iommu_get_ops();
>>>
>>> - if ( iommu_enabled && is_hvm_domain(d) )
>>> + ASSERT( hap_enabled(d) );
>>
>> This line is breaking compilation on ARM.
>>
>> Shouldn't it be replaced by iommu_use_hap_pt?
>
> No, that's a different thing. But shouldn't ARM have a stub
> hap_enabled() evaluating to constant true?
I'm not sure if we should introduce hap_enabled. It's not something that
we should used in general.
What are we trying to catch with this ASSERT? I guess wrong caller?
If so, every share_p2m callbacks have a check "if iommu_use_hap_pt()"
which contains a check to hap_enabled on x86.
So I don't think this check is worthwhile in the common iommu code.
Regards,
--
Julien Grall
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v2] xen/iommu: fix usage of shared EPT/IOMMU page tables on PVH guests
2015-03-10 13:18 ` Julien Grall
@ 2015-03-10 13:35 ` Jan Beulich
2015-03-11 10:52 ` Julien Grall
0 siblings, 1 reply; 10+ messages in thread
From: Jan Beulich @ 2015-03-10 13:35 UTC (permalink / raw)
To: Roger Pau Monne, Julien Grall
Cc: Yang Zhang, xen-devel, Kevin Tian, Aravind Gopalakrishnan,
Suravee Suthikulpanit
>>> On 10.03.15 at 14:18, <julien.grall@linaro.org> wrote:
> On 10/03/15 13:06, Jan Beulich wrote:
>>>>> On 10.03.15 at 13:51, <julien.grall@linaro.org> wrote:
>>> Hi,
>>>
>>> On 27/02/15 11:33, Roger Pau Monne wrote:
>>>> diff --git a/xen/drivers/passthrough/iommu.c
>>> b/xen/drivers/passthrough/iommu.c
>>>> index cc12735..7fcbbb1 100644
>>>> --- a/xen/drivers/passthrough/iommu.c
>>>> +++ b/xen/drivers/passthrough/iommu.c
>>>> @@ -332,7 +332,8 @@ void iommu_share_p2m_table(struct domain* d)
>>>> {
>>>> const struct iommu_ops *ops = iommu_get_ops();
>>>>
>>>> - if ( iommu_enabled && is_hvm_domain(d) )
>>>> + ASSERT( hap_enabled(d) );
>>>
>>> This line is breaking compilation on ARM.
>>>
>>> Shouldn't it be replaced by iommu_use_hap_pt?
>>
>> No, that's a different thing. But shouldn't ARM have a stub
>> hap_enabled() evaluating to constant true?
>
> I'm not sure if we should introduce hap_enabled. It's not something that
> we should used in general.
>
> What are we trying to catch with this ASSERT? I guess wrong caller?
>
> If so, every share_p2m callbacks have a check "if iommu_use_hap_pt()"
> which contains a check to hap_enabled on x86.
Ah, right, I mixed this up with iommu_hap_pt_share. Roger - looks
like this could indeed be replaced by
if ( iommu_enabled && iommu_use_hap_pt(d) )
ops->share_p2m(d);
and the corresponding check in VT-d and AMD Vi code could then
also be dropped.
Jan
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v2] xen/iommu: fix usage of shared EPT/IOMMU page tables on PVH guests
2015-03-10 13:35 ` Jan Beulich
@ 2015-03-11 10:52 ` Julien Grall
0 siblings, 0 replies; 10+ messages in thread
From: Julien Grall @ 2015-03-11 10:52 UTC (permalink / raw)
To: Jan Beulich, Roger Pau Monne
Cc: Yang Zhang, xen-devel, Kevin Tian, Aravind Gopalakrishnan,
Suravee Suthikulpanit
Hi Jan,
On 10/03/2015 13:35, Jan Beulich wrote:
> Ah, right, I mixed this up with iommu_hap_pt_share. Roger - looks
> like this could indeed be replaced by
>
> if ( iommu_enabled && iommu_use_hap_pt(d) )
> ops->share_p2m(d);
>
> and the corresponding check in VT-d and AMD Vi code could then
> also be dropped.
Royger seems to be away. As it break ARM support I will send a patch today.
Regards,
--
Julien Grall
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2015-03-11 10:52 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-02-27 11:33 [PATCH v2] xen/iommu: fix usage of shared EPT/IOMMU page tables on PVH guests Roger Pau Monne
2015-03-04 16:53 ` David Vrabel
2015-03-05 9:49 ` Tim Deegan
2015-03-09 3:30 ` Tian, Kevin
2015-03-09 9:02 ` Roger Pau Monné
2015-03-10 12:51 ` Julien Grall
2015-03-10 13:06 ` Jan Beulich
2015-03-10 13:18 ` Julien Grall
2015-03-10 13:35 ` Jan Beulich
2015-03-11 10:52 ` Julien Grall
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