On Mon, Nov 13, 2017 at 04:39:09PM +, Paul Durrant wrote:
> > -Original Message-
> > From: Joao Martins [mailto:joao.m.mart...@oracle.com]
> > Sent: 13 November 2017 16:34
> > To: Paul Durrant
> > Cc: net...@vger.kernel.org; Wei Liu ; xen-
> > de
On Mon, Nov 13, 2017 at 11:58:03AM +, Paul Durrant wrote:
> On Mon, Nov 13, 2017 at 11:54:00AM +0000, Joao Martins wrote:
> > On 11/13/2017 10:33 AM, Paul Durrant wrote:
> > > On 11/10/2017 19:35 PM, Joao Martins wrote:
[snip]
> > >> diff --git a/drivers/net/
On 11/13/2017 10:33 AM, Paul Durrant wrote:
>> -Original Message-
>> From: Joao Martins [mailto:joao.m.mart...@oracle.com]
>> Sent: 10 November 2017 19:35
>> To: net...@vger.kernel.org
>> Cc: Joao Martins ; Wei Liu
>> ; Paul Durrant ; xen-
>> de.
er batches (i.e. for better throughput with big packets) as it
was prior to the above mentioned commit.
Signed-off-by: Joao Martins
---
drivers/net/xen-netback/common.h| 6 --
drivers/net/xen-netback/interface.c | 25 -
drivers/net/xen-netback/netback.c | 5
vcpu_time_info struct.
Signed-off-by: Joao Martins
Reviewed-by: Juergen Gross
Reviewed-by: Boris Ostrovsky
---
Changes since v5:
* Move xen_setup_vsyscall_time_info within the PVCLOCK_TSC_STABLE_BIT
clause added in predecessor patch.
Changes since v4:
* Remove pvclock_set_flags since predecessor
the setter (pvclock_set_pvti_cpu0_va).
Signed-off-by: Joao Martins
Acked-by: Andy Lutomirski
Acked-by: Paolo Bonzini
Acked-by: Thomas Gleixner
---
Changes since v7:
* Add Paolo Acked-by
(Comments from Thomas Gleixner)
* Rename getter to pvclock_get_pvti_cpu0_va
and fixup its callsites (vdso/vma
Specifically check for PVCLOCK_TSC_STABLE_BIT and if this bit is set,
then set it too on pvclock flags. This allows Xen clocksource to use it
and thus speeding up xen_clocksource_read() callers (i.e. sched_clock())
Signed-off-by: Joao Martins
Reviewed-by: Boris Ostrovsky
---
Changes since v5
.
Signed-off-by: Joao Martins
Acked-by: Radim Krčmář
---
Changes since v7:
* Add Radim's Acked-by
---
drivers/ptp/ptp_kvm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/ptp/ptp_kvm.c b/drivers/ptp/ptp_kvm.c
index 2b1b212c219e..e04d7b2ecb3a 100644
--- a/drivers/ptp/ptp_kvm.c
peers noticed when such changes happen.
Signed-off-by: Joao Martins
Acked-by: Juergen Gross
Reviewed-by: Konrad Rzeszutek Wilk
Acked-by: Paolo Bonzini
---
Changes since v4:
* Add Paolo's Acked-by
* Add Konrad's Reviewed-by
Changes since v1:
* Add Juergen's Gross Acked-by.
---
M
individual patches)
Thanks,
Joao
Joao Martins (5):
ptp_kvm: probe for kvm guest availability
x86/pvclock: add setter for pvclock_pvti_cpu0_va
x86/xen/time: set pvclock flags on xen_time_init()
x86/xen/time: setup vcpu 0 time info page
MAINTAINERS: xen, kvm: track pvclock-abi.h changes
M
On 11/08/2017 11:06 AM, Thomas Gleixner wrote:
> On Tue, 7 Nov 2017, Joao Martins wrote:
>> On 11/06/2017 04:09 PM, Paolo Bonzini wrote:
>>> On 19/10/2017 15:39, Joao Martins wrote:
>>>> Right now there is only a pvclock_pvti_cpu0_va() which is defined
>>&g
On 11/06/2017 04:09 PM, Paolo Bonzini wrote:
> On 19/10/2017 15:39, Joao Martins wrote:
>> Right now there is only a pvclock_pvti_cpu0_va() which is defined
>> on kvmclock since:
>>
>> commit dac16fba6fc5
>> ("x86/vdso: Get pvclock data from the vvar VMA inste
On 11/07/2017 11:28 AM, Oleksandr Grytsov wrote:
> On Thu, Nov 2, 2017 at 8:06 PM, Joao Martins <mailto:joao.m.mart...@oracle.com>> wrote:
>
> The function libxl__device_generic_add will have an additional
> argument whereby it adds a second set of entries visible
On Mon, Nov 06, 2017 at 10:33:59AM +, Paul Durrant wrote:
> > -Original Message-
> > From: Joao Martins [mailto:joao.m.mart...@oracle.com]
> > Sent: 02 November 2017 18:06
> > To: Xen Development List
> > Cc: Joao Martins ; Konrad Rzeszutek Wil
for 'feature-no-csum-offload' to allow toolstack
to control per device checksum offloading.
Signed-off-by: Joao Martins
---
drivers/net/xen-netback/xenbus.c | 122 +++
1 file changed, 99 insertions(+), 23 deletions(-)
diff --git a/drivers/net/xen-netb
ed and all values set there are
used in place of the module parameters being used.
Note, however that feature-barrier, feature-flush-support and
feature-discard aren't probed because first two are physical
device dependent and feature-discard already has tunables to
adjust.
Signed-off-b
ly specific
to how it's done and could possibly be implemented in other PV interfaces. But
there wasn't a protocol agnostic file to put all this, so I went ahead and did
for the two individual io types (block and netif) I am most interested in.
Any comments appreciated :)
Thanks!
Joa
ire-multi-queue-max-queues=1" ]
...
Which would set the number of queues to 2 as opposed to e.g. the global
blkback defined xen_blkback.max_queues parameter.
Signed-off-by: Joao Martins
---
tools/libxl/libxlu_disk_l.l | 42 ++
1 file changed, 42 inser
multi-queue-max-queues=2"]
...
Which would set the number of queues to 2 as opposed to e.g. the global
netback defined xen_netback.max_queues parameter.
Signed-off-by: Joao Martins
---
tools/xl/xl_parse.c | 37 +
tools/xl/xl_parse.h | 2 ++
2 files ch
a key value store storing:
=
xl|libxl are stateless with respect to feature names therefore is up to the
admin to carefully select those. If backend isn't supported therefore the
features won't be overwritten.
Signed-off-by: Joao Martins
---
tools/libxl/libxl.h | 8 +
The proposed directory provides a mechanism for tools to control the
maximum feature set of the device being provisioned by backend.
The parameters/features include offloading features, number of
queues etc.
Signed-off-by: Joao Martins
---
xen/include/public/io/netif.h | 16
1
ned-off-by: Joao Martins
---
tools/libxl/libxl.h | 8
tools/libxl/libxl_9pfs.c | 2 +-
tools/libxl/libxl_console.c | 2 +-
tools/libxl/libxl_device.c | 14 --
tools/libxl/libxl_internal.h | 2 +-
tools/libxl/libxl_nic.c | 13 -
t
The proposed directory provides a mechanism for tools to control the
maximum feature set of the device being provisioned by backends.
Examples include max ring page order, persistent grants, number of
queues etc.
Signed-off-by: Joao Martins
---
xen/include/public/io/blkif.h | 14
On 10/17/2017 04:34 PM, Joao Martins wrote:
> On 10/03/2017 12:55 PM, Joao Martins wrote:
>> Right now there is only a pvclock_pvti_cpu0_va() which is defined
>> on kvmclock since:
>>
>> commit dac16fba6fc5
>> ("x86/vdso: Get pvclock data from the vvar VMA
vcpu_time_info struct.
Signed-off-by: Joao Martins
Reviewed-by: Juergen Gross
Reviewed-by: Boris Ostrovsky
---
Changes since v6:
* Add Boris RoB
Changes since v5:
* Move xen_setup_vsyscall_time_info within the PVCLOCK_TSC_STABLE_BIT
clause added in predecessor patch.
Changes since v4:
* Remove
and moves pvclock_pvti_cpu0_va
to pvclock, which is a more generic place to have it; and would
allow other PV clocksources to use it, such as Xen.
Signed-off-by: Joao Martins
Acked-by: Andy Lutomirski
---
Changes since v1:
* Rebased: the only conflict was that I had move the export
pvclock_pvti_cpu0_va()
anks,
Joao
Joao Martins (5):
ptp_kvm: probe for kvm guest availability
x86/pvclock: add setter for pvclock_pvti_cpu0_va
x86/xen/time: set pvclock flags on xen_time_init()
x86/xen/time: setup vcpu 0 time info page
MAINTAINERS: xen, kvm: track pvclock-abi.h changes
M
Specifically check for PVCLOCK_TSC_STABLE_BIT and if this bit is set,
then set it too on pvclock flags. This allows Xen clocksource to use it
and thus speeding up xen_clocksource_read() callers (i.e. sched_clock())
Signed-off-by: Joao Martins
Reviewed-by: Boris Ostrovsky
---
Changes since v5
peers noticed when such changes happen.
Signed-off-by: Joao Martins
Acked-by: Juergen Gross
Reviewed-by: Konrad Rzeszutek Wilk
Acked-by: Paolo Bonzini
---
Changes since v4:
* Add Paolo's Acked-by
* Add Konrad's Reviewed-by
Changes since v1:
* Add Juergen's Gross Acked-by.
---
M
whether it is running in a KVM guest.
Signed-off-by: Joao Martins
---
New in v7;
---
drivers/ptp/ptp_kvm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/ptp/ptp_kvm.c b/drivers/ptp/ptp_kvm.c
index 2b1b212c219e..e04d7b2ecb3a 100644
--- a/drivers/ptp/ptp_kvm.c
+++ b/drivers/ptp
On 10/03/2017 12:55 PM, Joao Martins wrote:
> Right now there is only a pvclock_pvti_cpu0_va() which is defined
> on kvmclock since:
>
> commit dac16fba6fc5
> ("x86/vdso: Get pvclock data from the vvar VMA instead of the fixmap")
>
> The only user of this inter
added are:
- Add grefs to be mapped by backend
- Remove grefs mappings (If they are not in use)
- Get maximum amount of grefs kept mapped.
Signed-off-by: Joao Martins
Reviewed-by: Paul Durrant
Reviewed-by: Konrad Rzeszutek Wilk
---
v5:
* Added RoB from Paul and Konrad
v4:
* Declare
/jpemartins/linux.git xen-net-stg-gnts-v3
Thanks!
Joao Martins (2):
public/io/netif.h: add gref mapping control messages
docs/misc: add netif staging grants design document
docs/misc/netif-staging-grants.pandoc | 587 ++
xen/include/public/io/netif.h | 123
Add a document outlining how the guest can map a set of grants
on the backend through the control ring.
Signed-off-by: Joao Martins
Reviewed-by: Konrad Rzeszutek Wilk
---
New in v5
---
docs/misc/netif-staging-grants.pandoc | 587 ++
1 file changed, 587
Specifically check for PVCLOCK_TSC_STABLE_BIT and if this bit is set,
then set it too on pvclock flags. This allows Xen clocksource to use it
and thus speeding up xen_clocksource_read() callers (i.e. sched_clock())
Signed-off-by: Joao Martins
Reviewed-by: Boris Ostrovsky
---
Changes since v5
vcpu_time_info struct.
Signed-off-by: Joao Martins
Reviewed-by: Juergen Gross
---
Changes since v5:
* Move xen_setup_vsyscall_time_info within the PVCLOCK_TSC_STABLE_BIT
clause added in the previous patch.
Changes since v4:
* Remove pvclock_set_flags since predecessor patch will set in
xen_time_init
and moves pvclock_pvti_cpu0_va
to pvclock, which is a more generic place to have it; and would
allow other PV clocksources to use it, such as Xen.
Signed-off-by: Joao Martins
Acked-by: Andy Lutomirski
---
Changes since v1:
* Rebased: the only conflict was that I had move the export
pvclock_pvti_cpu0_va()
elog is in individual patches.
Thanks,
Joao
Joao Martins (4):
x86/pvclock: add setter for pvclock_pvti_cpu0_va
x86/xen/time: set pvclock flags on xen_time_init()
x86/xen/time: setup vcpu 0 time info page
MAINTAINERS: xen, kvm: track pvclock-abi.h changes
MAINTAINERS| 2 +
peers noticed when such changes happen.
Signed-off-by: Joao Martins
Acked-by: Juergen Gross
Reviewed-by: Konrad Rzeszutek Wilk
Acked-by: Paolo Bonzini
---
Changes since v4:
* Add Paolo's Acked-by
* Add Konrad's Reviewed-by
Changes since v1:
* Add Juergen's Gross Acked-by.
---
M
On 10/02/2017 07:44 PM, Boris Ostrovsky wrote:
>
>> +
>> +static void xen_setup_vsyscall_time_info(void)
>> +{
>> +struct vcpu_register_time_memory_area t;
>> +struct pvclock_vsyscall_time_info *ti;
>> +int ret;
>
>
> In the previous version you'd return immediately if
> PVCLOCK_TS
and moves pvclock_pvti_cpu0_va
to pvclock, which is a more generic place to have it; and would
allow other PV clocksources to use it, such as Xen.
Signed-off-by: Joao Martins
Acked-by: Andy Lutomirski
---
Changes since v1:
* Rebased: the only conflict was that I had move the export
pvclock_pvti_cpu0_va()
peers noticed when such changes happen.
Signed-off-by: Joao Martins
Acked-by: Juergen Gross
Reviewed-by: Konrad Rzeszutek Wilk
Acked-by: Paolo Bonzini
---
Changes since v4:
* Add Paolo's Acked-by
* Add Konrad's Reviewed-by
Changes since v1:
* Add Juergen's Gross Acked-by.
---
M
vcpu_time_info struct.
Signed-off-by: Joao Martins
Reviewed-by: Juergen Gross
---
Changes since v4:
* Remove pvclock_set_flags since predecessor patch will set in
xen_time_init. Consequently pvti local variable is not so useful
and doesn't make things more clear - therefore remove it.
* Adjust co
Specifically check for PVCLOCK_TSC_STABLE_BIT and if this bit is set,
then set it too on pvclock flags. This allows Xen clocksource to use it
and thus speeding up xen_clocksource_read() callers (i.e. sched_clock())
Signed-off-by: Joao Martins
---
New in v5
---
arch/x86/xen/time.c | 9
elog is in individual patches.
Thanks,
Joao
Joao Martins (4):
x86/pvclock: add setter for pvclock_pvti_cpu0_va
x86/xen/time: set pvclock flags on xen_time_init()
x86/xen/time: setup vcpu 0 time info page
MAINTAINERS: xen, kvm: track pvclock-abi.h changes
MAINTAINERS|
On 09/28/2017 12:46 AM, Joao Martins wrote:
> On 09/27/2017 11:44 PM, Boris Ostrovsky wrote:
>> On 09/27/2017 04:57 PM, Joao Martins wrote:
>>> On 09/27/2017 09:22 PM, Boris Ostrovsky wrote:
>>>> On 09/27/2017 11:26 AM, Joao Martins wrote:
>>>>>
On 09/27/2017 11:44 PM, Boris Ostrovsky wrote:
> On 09/27/2017 04:57 PM, Joao Martins wrote:
>> On 09/27/2017 09:22 PM, Boris Ostrovsky wrote:
>>> On 09/27/2017 11:26 AM, Joao Martins wrote:
>>>> On 09/27/2017 03:40 PM, Boris Ostrovsky wrote:
>>>>>>
On 09/27/2017 09:22 PM, Boris Ostrovsky wrote:
> On 09/27/2017 11:26 AM, Joao Martins wrote:
>> On 09/27/2017 03:40 PM, Boris Ostrovsky wrote:
>>>> +static void xen_setup_vsyscall_time_info(void)
>>>> +{
>>>> + struct vcpu_register_time_memory_area t;
On 09/27/2017 03:40 PM, Boris Ostrovsky wrote:
>> +static void xen_setup_vsyscall_time_info(void)
>> +{
>> +struct vcpu_register_time_memory_area t;
>> +struct pvclock_vsyscall_time_info *ti;
>> +struct pvclock_vcpu_time_info *pvti;
>> +int ret;
>> +
>> +pvti = &__this_cpu_read(
On 09/27/2017 01:14 PM, Juergen Gross wrote:
> On 27/09/17 14:00, Joao Martins wrote:
[...]
>> diff --git a/include/xen/interface/vcpu.h b/include/xen/interface/vcpu.h
>> index 98188c87f5c1..b4a1eabcf1c4 100644
>> --- a/include/xen/interface/vcpu.h
>> +++ b/i
vcpu_time_info struct.
Signed-off-by: Joao Martins
---
Changes since v3:
(Comments from Juergen)
* Remove _t added suffix from *GUEST_HANDLE* when sync vcpu.h
with the latest
Changes since v2:
(Comments from Juergen)
* Omit the blank after the cast on all 3 occurrences.
* Change last VCLOCK_PVCLOCK
and moves pvclock_pvti_cpu0_va
to pvclock, which is a more generic place to have it; and would
allow other PV clocksources to use it, such as Xen.
Signed-off-by: Joao Martins
Acked-by: Andy Lutomirski
---
Changes since v1:
* Rebased: the only conflict was that I had move the export
pvclock_pvti_cpu0_va()
peers noticed when such changes happen.
Signed-off-by: Joao Martins
Acked-by: Juergen Gross
---
In the end, I choose the originally posted because this is so far the
only ABI shared between Xen/KVM. Therefore whenever we have more things
shared it would deserve its own place in MAINTAINERS file. I
hes.
(only patch 2 changed in this version)
Thanks,
Joao
Joao Martins (3):
x86/pvclock: add setter for pvclock_pvti_cpu0_va
x86/xen/time: setup vcpu 0 time info page
MAINTAINERS: xen, kvm: track pvclock-abi.h changes
MAINTAINERS| 2 +
arch/x86/include/asm/pvclo
peers noticed when such changes happen.
Signed-off-by: Joao Martins
Acked-by: Juergen Gross
---
In the end, I choose the originally posted because this is so far the
only ABI shared between Xen/KVM. Therefore whenever we have more things
shared it would deserve its own place in MAINTAINERS file. I
hes.
(only patch 2 changed in this version)
Thanks,
Joao
Joao Martins (3):
x86/pvclock: add setter for pvclock_pvti_cpu0_va
x86/xen/time: setup vcpu 0 time info page
MAINTAINERS: xen, kvm: track pvclock-abi.h changes
MAINTAINERS| 2 +
arch/x86/include/asm/pvclo
vcpu_time_info struct.
Signed-off-by: Joao Martins
---
Changes since v2:
(Comments from Juergen)
* Omit the blan after the cast on all 3 occurrences.
* Change last VCLOCK_PVCLOCK message to be more descriptive
* Sync the complete vcpu.h header instead of just adding the
needed one. (IOW adding
and moves pvclock_pvti_cpu0_va
to pvclock, which is a more generic place to have it; and would
allow other PV clocksources to use it, such as Xen.
Signed-off-by: Joao Martins
Acked-by: Andy Lutomirski
---
Changes since v1:
* Rebased: the only conflict was that I had move the export
pvclock_pvti_cpu0_va()
On 09/26/2017 10:32 AM, Juergen Gross wrote:
> On 22/09/17 18:25, Joao Martins wrote:
[snip]
>> +static void xen_setup_vsyscall_time_info(void)
>> +{
>> +struct vcpu_register_time_memory_area t;
>> +struct pvclock_vsyscall_time_info *ti;
>> +st
and moves pvclock_pvti_cpu0_va
to pvclock, which is a more generic place to have it; and would
allow other PV clocksources to use it, such as Xen.
Signed-off-by: Joao Martins
Acked-by: Andy Lutomirski
---
Changes since v1:
* Rebased: the only conflict was that I had move the export
pvclock_pvti_cpu0_va()
vcpu_time_info struct.
Signed-off-by: Joao Martins
---
Changes since v1:
* Check flags ahead to see if the primary clock can use
PVCLOCK_TSC_STABLE_BIT even if secondary registration fails.
(Comments from Boris)
* Remove addr, addr variables;
* Change first pr_debug to pr_warn;
* Change last
BI changes.
Changelog since v1 is included in individual patches.
Any comments/suggestions are welcome.
Thanks,
Joao
Joao Martins (3):
x86/pvclock: add setter for pvclock_pvti_cpu0_va
x86/xen/time: setup vcpu 0 time info page
MAINTAINERS: xen, kvm: track pvclock-abi.h changes
M
peers noticed when such changes happen.
Signed-off-by: Joao Martins
Acked-by: Juergen Gross
---
Out of the two options (and provided I was given a choice) I choose the
originally posted because this is so far the only ABI shared between Xen/KVM.
Whenever we have more things shared it would probably de
Hey,
This is v4 taking into consideration all comments received from v3 (changelog
in the first patch). The specification is right after the diffstat.
Reference implementation also here (on top of net-next):
https://github.com/jpemartins/linux.git xen-net-stg-gnts-v3
Cheers,
Joao Martins (1
added are:
- Add grefs to be mapped by backend
- Remove grefs mappings (If they are not in use)
- Get maximum amount of grefs kept mapped.
Signed-off-by: Joao Martins
---
v4:
* Declare xen_netif_gref parameters are input or output.
* Clarify status field and that it doesn't require to b
On 09/18/2017 08:59 PM, Konrad Rzeszutek Wilk wrote:
> On Thu, Sep 14, 2017 at 05:08:18PM +0100, Joao Martins wrote:
>> [ Realized that I didn't CC the maintainers,
>> so doing that now, +Linux folks +PV interfaces czar
>> Sorry for the noise! ]
>>
>> On 0
On Mon, Sep 18, 2017 at 12:11:04PM +, Paul Durrant wrote:
> > -Original Message-
> > From: Joao Martins [mailto:joao.m.mart...@oracle.com]
> > Sent: 18 September 2017 12:56
> > To: Paul Durrant
> > Cc: Xen-devel ; Wei Liu ;
> > Konrad Rzeszutek
On Mon, Sep 18, 2017 at 09:53:18AM +, Paul Durrant wrote:
> > -Original Message-
> > From: Joao Martins [mailto:joao.m.mart...@oracle.com]
> > Sent: 13 September 2017 19:11
> > To: Xen-devel
> > Cc: Wei Liu ; Paul Durrant ;
> > Konrad Rzeszutek
On Mon, Sep 18, 2017 at 09:45:06AM +, Paul Durrant wrote:
> > -Original Message-
> > From: Joao Martins [mailto:joao.m.mart...@oracle.com]
> > Sent: 13 September 2017 19:11
> > To: Xen-devel
> > Cc: Wei Liu ; Paul Durrant ;
> > Konrad Rzeszutek
On 09/15/2017 12:34 PM, Juergen Gross wrote:
> On 15/09/17 13:19, Wei Liu wrote:
>> On Thu, Sep 14, 2017 at 05:18:44PM +0100, Joao Martins wrote:
>>> On 09/14/2017 05:10 PM, Wei Liu wrote:
>>>> On Thu, Sep 07, 2017 at 05:53:54PM +0100, Joao Martins wrote:
>&
On 09/14/2017 05:10 PM, Wei Liu wrote:
> On Thu, Sep 07, 2017 at 05:53:54PM +0100, Joao Martins wrote:
>> Hey!
>>
>> We wanted to brought up this small proposal regarding the lack of
>> parameterization on PV devices on Xen.
>>
>> Currently users don&#x
[ Realized that I didn't CC the maintainers,
so doing that now, +Linux folks +PV interfaces czar
Sorry for the noise! ]
On 09/08/2017 09:49 AM, Joao Martins wrote:
> [Forgot two important details regarding Xenbus states]
> On 09/07/2017 05:53 PM, Joao Martins wrote:
>> Hey!
&
oking
up on our mappings table. Thoughts, or perhaps people may prefer the one
already described in the series?
Cheers,
Joao Martins (1):
public/io/netif.h: add gref mapping control messages
xen/include/public/io/netif.h | 115 ++
1 file changed, 1
added are:
- Add grefs to be mapped by backend
- Remove grefs mappings (If they are not in use)
- Get maximum amount of grefs kept mapped.
Signed-off-by: Joao Martins
---
v3:
* Use DEL for unmapping grefs instead of PUT
* Rname from xen_netif_gref_alloc to xen_netif_gref
* Add 'status&#
[Forgot two important details regarding Xenbus states]
On 09/07/2017 05:53 PM, Joao Martins wrote:
> Hey!
>
> We wanted to brought up this small proposal regarding the lack of
> parameterization on PV devices on Xen.
>
> Currently users don't have a way for enforce and
Hey!
We wanted to brought up this small proposal regarding the lack of
parameterization on PV devices on Xen.
Currently users don't have a way for enforce and control what
features/queues/etc the backend provides. So far there's only global parameters
on backends, and specs do not mention anythin
On 09/06/2017 02:49 PM, Paul Durrant wrote:
>> -Original Message-
>> From: Joao Martins [mailto:joao.m.mart...@oracle.com]
>> Sent: 01 September 2017 15:51
>> To: Xen-devel
>> Cc: Wei Liu ; Paul Durrant ;
>> Konrad Rzeszutek Wilk ; Joao Martins
>
added are:
- Add grefs to be mapped by backend
- Remove grefs mappings (If they are not in use)
- Get maximum amount of grefs kept mapped.
Signed-off-by: Joao Martins
---
xen/include/public/io/netif.h | 114 ++
1 file changed, 114 insertions(+)
diff
ll be less effort involved
into making netback work with something like zerogrant.
Cheers,
Joao
Joao Martins (1):
public/io/netif.h: add gref mapping control messages
xen/include/public/io/netif.h | 114 ++
1 file changed, 114 insertions(+)
---
% Staging
On 08/01/2017 07:34 PM, Andrew Cooper wrote:
> On 31/07/2017 20:49, Konrad Rzeszutek Wilk wrote:
>> On Wed, Jul 05, 2017 at 02:22:00PM +0100, Joao Martins wrote:
>>> On 07/05/2017 12:16 PM, Andrew Cooper wrote:
>>>> On 05/07/17 10:46, Joao Martins wrote:
>>>&
On 07/31/2017 12:41 PM, Oleksandr Andrushchenko wrote:
> Hi, Joao!
>
> On 07/31/2017 02:03 PM, Joao Martins wrote:
>> Hey Oleksandr,
>>
>> On 07/31/2017 09:34 AM, Oleksandr Andrushchenko wrote:
>>> Hi, all!
>>>
On 07/31/2017 11:37 AM, Oleksandr Andrushchenko wrote:
> On 07/31/2017 01:04 PM, Julien Grall wrote:
>> On 31/07/17 10:52, Oleksandr Andrushchenko wrote:
>>> On 07/31/2017 12:47 PM, Julien Grall wrote:
On 31/07/17 10:46, Oleksandr Andrushchenko wrote:
Do you have any example of hardware?
Hey Oleksandr,
On 07/31/2017 09:34 AM, Oleksandr Andrushchenko wrote:
> Hi, all!
>
[snip]
>
> Comparison for display use-case
> ===
>
> 1 Number of grant references used
> 1-1 grant references: nr_pages
> 1-2 GNTTABOP_transfer: nr_pages
> 1-3 XENMEM_exchange: not an
On 07/05/2017 12:16 PM, Andrew Cooper wrote:
> On 05/07/17 10:46, Joao Martins wrote:
>> Hey Andrew,
>>
>> On 07/04/2017 03:55 PM, Andrew Cooper wrote:
>>> Presented herewith is the a plan for the final part of CPUID work, which
>>> primarily covers better Xe
On 07/05/2017 10:46 AM, Joao Martins wrote:
> Hey Andrew,
>
> On 07/04/2017 03:55 PM, Andrew Cooper wrote:
>> Presented herewith is the a plan for the final part of CPUID work, which
>> primarily covers better Xen/Toolstack interaction for configuring the guests
>> CPU
Hey Andrew,
On 07/04/2017 03:55 PM, Andrew Cooper wrote:
> Presented herewith is the a plan for the final part of CPUID work, which
> primarily covers better Xen/Toolstack interaction for configuring the guests
> CPUID policy.
>
Really nice write up, a few comments below.
> A PDF version of this
On 02/20/2017 09:56 AM, Jan Blunck wrote:
> On Fri, Feb 17, 2017 at 5:07 PM, Konrad Rzeszutek Wilk
> wrote:
>> On Thu, Feb 16, 2017 at 10:51:44PM +0100, Vincent JARDIN wrote:
>>> Le 16/02/2017 à 14:36, Konrad Rzeszutek Wilk a écrit :
> Is it time now to officially remove Dom0 support?
So
used?
OK, see attached - I should note that its a WIP as Konrad noted, but once the
staging grants work is finished, the code would be improved to have it in better
shape (as well as in feature parity) for a proper RFC [and adhering to the
project coding style].
Joao
>From 3bced1452e1e619e7f470
On 02/10/2017 11:17 AM, Andrew Cooper wrote:
> On 10/02/17 11:11, Joao Martins wrote:
>> On 02/10/2017 11:03 AM, Jan Beulich wrote:
>>> While we shouldn't remove its current invocation, we need to re-run it
>>> for the case that the X86_FEATURE_TSC_RELIABLE featu
e written.
>
> Signed-off-by: Jan Beulich
FWIW,
Reviewed-by: Joao Martins
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On 02/08/2017 04:06 PM, Jim Fehlig wrote:
> Joao Martins wrote:
>> On 02/02/2017 10:31 PM, Jim Fehlig wrote:
>>> When the libxl driver is initialized, it creates a virDomainDef
>>> object for dom0 and adds it to the list of domains. Total memory
>>> for dom0 wa
On 02/02/2017 10:31 PM, Jim Fehlig wrote:
> When the libxl driver is initialized, it creates a virDomainDef
> object for dom0 and adds it to the list of domains. Total memory
> for dom0 was being set from the max_memkb field of libxl_dominfo
> struct retrieved from libxl, but this field can be set
ally causing noticeably (even if only temporary) strange
>>> behavior. As we're anyway expecting only sufficiently similar CPUs to
>>> appear during hotplug, this shouldn't be introducing new limitations.
>>>
>>> Reported-by: Joao Martins
>>> Sig
On 01/26/2017 05:25 PM, Andy Lutomirski wrote:
> On Wed, Jan 25, 2017 at 9:33 AM, Joao Martins
> wrote:
>> This file defines an ABI shared between guest and hypervisor(s)
>> (KVM, Xen) and as such there should be an correspondent entry in
>> MAINTAINERS file. Notice tha
On 01/26/2017 05:25 PM, Andy Lutomirski wrote:
> On Wed, Jan 25, 2017 at 9:33 AM, Joao Martins
> wrote:
>> Right now there is only a pvclock_pvti_cpu0_va() which is defined
>> on kvmclock since:
>>
>> commit dac16fba6fc5
>> ("x86/vdso: Get pvclock dat
On 01/25/2017 07:26 PM, Boris Ostrovsky wrote:
> On 01/25/2017 12:33 PM, Joao Martins wrote:
>> In order to support pvclock vdso on xen we need to setup the time
>> info page for vcpu 0 and register the page with Xen using the
>> VCPUOP_register_vcpu_time_memory_area hype
vcpu_time_info struct.
Signed-off-by: Joao Martins
---
Changes since RFC:
(Comments from Boris and David)
* Remove Kconfig option
* Use get_zeroed_page/free/page
* Remove the hypercall availability check
* Unregister pvti with arg.addr.v = NULL if stable bit isn't supported.
(New)
* Set seco
eric place to have it
and adds the correspondent setter routine for it. This allows other
pvclock-based clocksources to use it, such as Xen.
Signed-off-by: Joao Martins
---
Changes since RFC:
(Comments from Andy Lutomirski)
* Add WARN_ON(vclock_was_used(VCLOCK_PVCLOCK)) to
pvclock_set_pv
BI changes. Changelog since RFC is
included in individual patches.
Any comments/suggestions are welcome.
Thanks,
Joao
Joao Martins (3):
x86/pvclock: add setter for pvclock_pvti_cpu0_va
x86/xen/time: setup vcpu 0 time info page
MAINTAINERS: xen, kvm: track pvclock-abi.h changes
M
peers noticed when such changes happen.
Signed-off-by: Joao Martins
---
This was suggested by folks at xen-devel as we missed some of the
ABI additions (e.g. flags field in pvti, TSC stable bit) - so this
patch is to help preventing that from happening. Alternatively I
could instead add a "P
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