d.DT6 (VRF mode) behaviors, is provided in a different
patchset that will follow shortly.
I would like to thank David Ahern for his support during the development of
this patchset.
Comments, suggestions and improvements are very welcome!
Thanks,
Andrea Mayer
v4
seg6: add support for the SRv6 End.DT
that the instances of SRv6 End.DT6 legacy and End.DT6 VRF
mode can coexist in the same system/configuration without problems.
[1] https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming
Signed-off-by: Andrea Mayer
---
net/ipv6/seg6_local.c | 76 +++
1 file
ree can be avoided by noticing that this load/check is
redundant if device_obj is non-NULL: primary_channel must be NULL if
device_obj is non-NULL, cf. vmbus_add_channel_work().
Fixes: 54a66265d6754b ("Drivers: hv: vmbus: Fix rescind handling")
Reported-by: Juan Vazquez
Signed-off-by:
to an use-after-free. Add a new flag to the channel structure
to make sure that only one instance of vmbus_onoffer_rescind() can get
the reference to the channel object.
Reported-by: Juan Vazquez
Signed-off-by: Andrea Parri (Microsoft)
---
drivers/hv/channel_mgmt.c | 12
include
vmbus_on_msg_dpc() double fetches from payload_size. The double fetch
can lead to a buffer overflow when (mem)copying the hv_message object.
Avoid the double fetch by saving the value of payload_size into a local
variable.
Reported-by: Juan Vazquez
Signed-off-by: Andrea Parri (Microsoft
The hv_message object is in memory shared with the host. To prevent
an erroneous or a malicious host from 'corrupting' such object, copy
the object into private memory.
Suggested-by: Juan Vazquez
Signed-off-by: Andrea Parri (Microsoft)
---
drivers/hv/vmbus_drv.c | 26
not allow overwriting an entry vmbus_connection.channels[].
Reported-by: Juan Vazquez
Signed-off-by: Andrea Parri (Microsoft)
---
Changes since v1:
- Don't corrupt oldchannel if offer->child_relid is invalid
drivers/hv/channel_mgmt.c | 38 --
drivers
Hi all,
This is v2 of [1], integrating feedback from Juan and Wei and adding
patch 4/7 (after Juan's suggestion). Changelogs are in the patches.
Thanks,
Andrea
[1] https://lkml.kernel.org/r/20201118143649.108465-1-parri.and...@gmail.com
Andrea Parri (Microsoft) (7):
Drivers: hv: vmbus
, potentially leaking guest data. Zero initialize such fields to
avoid leaking sensitive information to the host.
Reported-by: Juan Vazquez
Signed-off-by: Andrea Parri (Microsoft)
---
drivers/hv/channel.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/hv/channel.c b
ing the value of msgtype into a local variable.
Reported-by: Juan Vazquez
Signed-off-by: Andrea Parri (Microsoft)
---
drivers/hv/vmbus_drv.c | 18 +-
1 file changed, 13 insertions(+), 5 deletions(-)
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 0a2711aa63
Hello Mike,
On Sun, Nov 29, 2020 at 02:32:57PM +0200, Mike Rapoport wrote:
> Hello Andrea,
>
> On Thu, Nov 26, 2020 at 07:46:05PM +0200, Mike Rapoport wrote:
> > On Thu, Nov 26, 2020 at 11:05:14AM +0100, David Hildenbrand wrote:
> >
> > Let's try to me
> > > page can be writable within the small window). That's severe data loss.
> >
> > This still doesn't make sense. If the page is Uptodate in the page
> > cache, then userspace gets to access it. If you don't want the page to
> > be accessible, ClearP
it just needs to "eventually" stop the shmem_fault
activity, it doesn't need to catch those faults already in flight, so
it cannot relied upon as the form of serialization to zap the
pageteables while truncating the page.
> But Andrea in next mail goes on to see other issues with UFF
and whatever solution that works to retain the
_PAGE_UFFD_WP information during shmem swapping should also solve the
above without extra changes to filemap_map_pages and the fault around
logic if the uffd is armed.
What I'm really saying is that there's no point to apply this patch,
until we see the full patchset of shmem uffd-wp and then it's possible
to evaluate if there are no other losses for the _PAGE_UFFD_WP bit.
Anon memory is completely different, it's impossible to lose
_PAGE_UFFD_WP there, since the swap entry format contains it, for
shmem the pte is zero instead during swap.
Thanks!
Andrea
On Sun, Nov 29, 2020 at 06:29:55PM +, Michael Kelley wrote:
> From: Andrea Parri (Microsoft) Sent: Thursday,
> November 26, 2020 11:12 AM
> >
> > Quoting from commit 7527810573436f ("Drivers: hv: vmbus: Introduce
> > the CHANNELMSG_MODIFYCHANNEL message type&quo
the event that we are currently processing is not the last
event in the buffer.
Link: https://lwn.net/Articles/831207
Fixes: a389d86f7fd0 ("ring-buffer: Have nested events still record running time
stamp")
Signed-off-by: Andrea Righi
---
kernel/trace/ring_buffer.c | 6 +++---
1 file
faulting ptes of a shmem
page that is about to be truncated (whose original ptes had _PAGE_RW
unset and _PAGE_UFFD_WP set) there would be no problem with the uffd
interaction. So a proper shmem_map_pages could co-exist with uffd, the
userfaultfd_armed check would be only an optimization but it wouldn't
alk to the memblock.reserve and that
requires adding even more memblock_reserve to e820__memblock_setup for
type 20, we can add a walk for the memblock.memory holes and then we
can remove the memblock_reserve for E820_TYPE_SOFT_RESERVED too.
Thanks,
Andrea
st of direct
compaction which is only worth paying for, for MADV_HUGEPAGE ranges
doing long-lived allocations (we know by now that defrag=always was
a suboptimal default).
https://www.kernel.org/pub/linux/kernel/people/andrea/ebpf/thp-comm.bp
https://www.kernel.org/pub/linux/kernel/people/an
a CHANNELMSG_MODIFYCHANNEL message associated to that CPU."
Introduce the CHANNELMSG_MODIFYCHANNEL_RESPONSE(24) message type,
which embodies the type of the CHANNELMSG_MODIFYCHANNEL ACK.
Signed-off-by: Andrea Parri (Microsoft)
---
drivers/hv/channel.c | 108 +
rve overlaps fully, it makes
perfect sense and it has to stay for it. I was really only thinking at
the usage like above of memblock_reserve that looks like it should be
turned into a noop and deleted.
Thanks,
Andrea
On Thu, Nov 26, 2020 at 11:05:14AM +0100, David Hildenbrand wrote:
> I agree that this is sub-optimal, as such pages are impossible to detect
> (PageReserved is just not clear as discussed with Andrea). The basic
> question is how we want to proceed:
>
> a) Make sure any online
On Wed, Nov 25, 2020 at 12:34:41AM -0500, Andrea Arcangeli wrote:
> pfnphysaddr page->flags
> 500224 0x7a20 0x1fff1000 reserved True
> 500225 0x7a201000 0x1fff1000 reserved True
> *snip*
> 500245 0x7a215000 0x1fff1000 reserved True
&
e2 patch in two
separate patchsets.
Thank you all,
Andrea
start doing
pfn_valid(addr>>PAGE_SHIFT) if
PageReserved(pfn_to_page(addr>>PAGE_SHIFT)) instead.
At best memory.reserved should be calculated automatically by the
page_alloc.c based on the zone_start_pfn/zone_end_pfn and not passed
by the e820 caller, instead of adding the memory_reserve call for type
20 we should delete the memory_reserve function.
Thanks,
Andrea
On Wed, Nov 25, 2020 at 08:27:21PM +0100, David Hildenbrand wrote:
> On 25.11.20 19:28, Andrea Arcangeli wrote:
> > On Wed, Nov 25, 2020 at 07:45:30AM +0100, David Hildenbrand wrote:
> >> Before that change, the memmap of memory holes were only zeroed
> >> out. So t
[zone_start_pfn, zone_end_pfn] with
> memblock.memory and for x86 reserved ranges are not in memblock.memory,
> so the memmap for them remains semi-initialized.
That would matches the symptoms. I'll test it as first thing after
confirming older kernels had the right zoneid/nid on the reserved
pages.
Thanks,
Andrea
over two different
zones.
Thanks,
Andrea
Hi Jakub,
thanks for your review.
On Tue, 24 Nov 2020 15:40:17 -0800
Jakub Kicinski wrote:
> On Mon, 23 Nov 2020 19:28:53 +0100 Andrea Mayer wrote:
> > +static int cmp_nla_vrftable(struct seg6_local_lwt *a, struct
> > seg6_local_lwt *b)
> > +{
> > + stru
On Wed, Nov 25, 2020 at 12:41:55PM +0100, David Hildenbrand wrote:
> On 25.11.20 12:04, David Hildenbrand wrote:
> > On 25.11.20 11:39, Mel Gorman wrote:
> >> On Wed, Nov 25, 2020 at 07:45:30AM +0100, David Hildenbrand wrote:
> Something must have changed more recently than v5.1 that caused
worry about it since nobody can possibly get a wrong value out of
the page struct because there's no page struct in the case.
Last but not the least, RAM pages can be marked reserved and assigned
to hardware and so it'd be really messy if real reserved RAM pages
given to hw, behaved different than non-RAM that accidentally got a
struct page because of section alignment issues.
Thanks,
Andrea
On Wed, Nov 25, 2020 at 10:30:53AM +, Mel Gorman wrote:
> On Tue, Nov 24, 2020 at 03:56:22PM -0500, Andrea Arcangeli wrote:
> > Hello,
> >
> > On Tue, Nov 24, 2020 at 01:32:05PM +, Mel Gorman wrote:
> > > I would hope that is not the case because
On Wed, Nov 25, 2020 at 03:15:18PM +0100, Andrea Righi wrote:
...
> > I'd hate to see this in stable 3 days after Linus merges it...
> >
> > Do these need _irqsave, too?
> >
> > drivers/leds/led-triggers.c: read_lock(>leddev_list_lock);
> > dri
lar usages.
Link: https://lore.kernel.org/lkml/20201101092614.GB3989@xps-13-7390/
Fixes: eb25cb9956cc ("leds: convert IDE trigger to common disk trigger")
Signed-off-by: Andrea Righi
---
drivers/leds/led-triggers.c | 10 ++
1 file changed, 6 insertions(+), 4 deletions(-)
Cha
- -
> > led_trigger_event():
> >read_lock(>leddev_list_lock);
> >
> > ata_hsm_qc_complete():
> > spin_lock_irqsave(>lock)
Hello,
On Mon, Nov 23, 2020 at 02:01:16PM +0100, Vlastimil Babka wrote:
> On 11/21/20 8:45 PM, Andrea Arcangeli wrote:
> > A corollary issue was fixed in
> > 39639000-39814fff : Unknown E820 type
> >
> > pfn 0x7a200 -> 0x7a20 min_pfn hit non-RAM:
> >
71e88723b3074251189004ceae39dcd1689d Mon Sep 17 00:00:00 2001
From: Andrea Arcangeli
Date: Sat, 21 Nov 2020 12:55:58 -0500
Subject: [PATCH 1/1] mm: compaction: avoid fast_isolate_around() to set
pageblock_skip on reserved pages
A corollary issue was fixed in
e577c8b64d58fe307ea4d5149d
On Tue, Nov 24, 2020 at 04:26:33PM +, Wei Liu wrote:
> On Wed, Nov 18, 2020 at 03:36:47PM +0100, Andrea Parri (Microsoft) wrote:
> > When channel->device_obj is non-NULL, vmbus_onoffer_rescind() could
> > invoke put_device(), that will eventually release the device and fr
this selftest is designed for evaluating the new SRv6 End.DT6 (VRF) behavior
used, in this example, for implementing IPv6 L3 VPN use cases.
Signed-off-by: Andrea Mayer
Signed-off-by: Paolo Lungaroni
---
.../selftests/net/srv6_end_dt6_l3vpn_test.sh | 502 ++
1 file changed, 502
.
>From the userspace point of view, the support for optional attributes DO
NOT require any changes to the userspace applications, i.e: iproute2
unless new attributes (required or optional) are needed.
Signed-off-by: Andrea Mayer
---
net/ipv6/seg6_local.c |
the
information needed to handle a given attribute are contained in only
one place;
4) it facilitates the integration with new features introduced in further
patches.
Signed-off-by: Andrea Mayer
---
net/ipv6/seg6_local.c | 80 +--
1 file changed, 70
that the instances of SRv6 End.DT6 legacy and End.DT6 VRF
mode can coexist in the same system/configuration without problems.
[1] https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming
Signed-off-by: Andrea Mayer
---
net/ipv6/seg6_local.c | 76 +++
1 file
is not set.
In this case, the mac address of the VRF is copied in both the
destination and the source address of the ethernet header. The protocol
type is set either to IPv4 or IPv6, depending on which L3 packet is
received.
Signed-off-by: Andrea Mayer
Reviewed-by: David Ahern
---
drivers/net
are very welcome!
Thanks,
Andrea Mayer
v3
notes about the build bot:
- apparently the ',' (comma) in the subject prefix confused the build bot.
Removed the ',' in favor of ' ' (space).
Thanks to David Ahern and Konstantin Ryabitsev for shedding light on this
fact.
Thanks also
t;,
"vrftable": 200,
"dev": "eth0",
"metric": 1024,
"flags": [ ],
"pref": "medium"
} ]
Signed-off-by: Paolo Lungaroni
Signed-off-by: Andrea Mayer
---
include/uapi/linux/seg6_local.h | 1 +
ip/
v6-network-programming
[2]
https://speakerdeck.com/line_developers/line-data-center-networking-with-srv6
Signed-off-by: Andrea Mayer
---
include/uapi/linux/seg6_local.h | 1 +
net/ipv6/seg6_local.c | 290
2 files changed, 291 insertions(+)
diff --git
during its initialization phase and after all the attributes
have been parsed successfully;
- destroy_state(...): used for calling the custom destructor of the
behavior before it is completely destroyed.
Signed-off-by: Andrea Mayer
---
net/ipv6/seg6_local.c | 49
this selftest is designed for evaluating the new SRv6 End.DT4 behavior
used, in this example, for implementing IPv4 L3 VPN use cases.
Signed-off-by: Andrea Mayer
Reviewed-by: David Ahern
---
.../selftests/net/srv6_end_dt4_l3vpn_test.sh | 494 ++
1 file changed, 494 insertions
On Sat, Nov 21, 2020 at 02:45:06PM -0500, Andrea Arcangeli wrote:
> + if (likely(!PageReserved(page)))
NOTE: this line will have to become "likely(page &&
!PageReserved(page))" to handle the case of non contiguous zones,
since pageblock_pfn
IFT;
I didn't try to inject the bug to validate the fix and it'd be great
if someone can try that to validate this or any other fix.
Andrea Arcangeli (1):
mm: compaction: avoid fast_isolate_around() to set pageblock_skip on
reserved pages
mm/compaction.c | 5 -
1 file changed, 4 insertions(+), 1 deletion(-)
xcept in
the new fast_isolate_around() path).
Fixes: 5a811889de10 ("mm, compaction: use free lists to quickly locate a
migration target")
Signed-off-by: Andrea Arcangeli
---
mm/compaction.c | 5 -
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/mm/compaction.c b/mm/compa
I looked at the callee (iounmap).
Thanks,
Andrea
er
would need to still enforce they all have the same memtype, so it is
more likely able to enforce that it doesn't do overlapping ioremaps
at once than to be able to undo the changes to the direct mapping
pagetables
Fixes: f56d005d3034 ("x86: no CPA on iounmap")
Signed-off-
LICENSE("GPL");
==
Andrea Arcangeli (1):
x86: restore the write back cache of reserved RAM in iounmap()
arch/x86/mm/ioremap.c | 8 +++-
1 file changed, 7 insertions(+), 1 deletion(-)
On Mon, Nov 09, 2020 at 11:07:27AM +0100, Andrea Parri (Microsoft) wrote:
> From: Andres Beltran
>
> Pointers to ring-buffer packets sent by Hyper-V are used within the
> guest VM. Hyper-V can send packets with erroneous values or modify
> packet fields after they are process
On Mon, Nov 09, 2020 at 11:07:04AM +0100, Andrea Parri (Microsoft) wrote:
> From: Andres Beltran
>
> For additional robustness in the face of Hyper-V errors or malicious
> behavior, validate all values that originate from packets that Hyper-V
> has sent to the guest in the hos
Lack of validation could lead to out-of-bound reads and information
leaks (cf. usage of nvdev->chan_table[]). Check that the number of
allocated sub-channels fits into the expected range.
Suggested-by: Saruhan Karademir
Signed-off-by: Andrea Parri (Microsoft)
Cc: "David S. Miller&quo
Check that the packet is of the expected size at least, don't copy
data past the packet.
Reported-by: Saruhan Karademir
Signed-off-by: Andrea Parri (Microsoft)
Cc: "James E.J. Bottomley"
Cc: "Martin K. Petersen"
Cc: linux-s...@vger.kernel.org
---
Based on hyperv-
to an use-after-free. Add a new flag to the channel structure
to make sure that only one instance of vmbus_onoffer_rescind() can get
the reference to the channel object.
Reported-by: Juan Vazquez
Signed-off-by: Andrea Parri (Microsoft)
---
drivers/hv/channel_mgmt.c | 12
include
vmbus_on_msg_dpc() double fetches from payload_size. The double fetch
can lead to a buffer overflow when (mem)copying the hv_message object.
Avoid the double fetch by saving the value of payload_size into a local
variable.
Reported-by: Juan Vazquez
Signed-off-by: Andrea Parri (Microsoft
not allow overwriting an entry vmbus_connection.channels[].
Reported-by: Juan Vazquez
Signed-off-by: Andrea Parri (Microsoft)
---
drivers/hv/channel_mgmt.c | 30 ++
drivers/hv/hyperv_vmbus.h | 2 +-
2 files changed, 19 insertions(+), 13 deletions(-)
diff --git a/drivers/hv
, potentially leaking guest data. Zero initialize such fields to
avoid leaking sensitive information to the host.
Reported-by: Juan Vazquez
Signed-off-by: Andrea Parri (Microsoft)
---
drivers/hv/channel.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/hv/channel.c b
ree can be avoided by noticing that this load/check is
redundant if device_obk is non-NULL: primary_channel must be NULL if
device_obj is non-NULL, cf. vmbus_add_channel_work().
Reported-by: Juan Vazquez
Signed-off-by: Andrea Parri (Microsoft)
---
drivers/hv/channel_mgmt.c | 3 +--
1 file changed
ing the value of msgtype into a local variable.
Reported-by: Juan Vazquez
Signed-off-by: Andrea Parri (Microsoft)
---
drivers/hv/vmbus_drv.c | 18 +-
1 file changed, 13 insertions(+), 5 deletions(-)
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 0a2711aa63
Hi all,
This set is a continuation of the work for hardening the VMBus drivers
against an erroneous or malicious host. This is based on hyperv-next.
Thanks,
Andrea
Andrea Parri (Microsoft) (6):
Drivers: hv: vmbus: Initialize memory to be sent to the host
Drivers: hv: vmbus: Avoid double
rate on tables (and so on the table ID) due to
the spirit of the RFC. We have discussed in depth this design choice with
David Ahern when implementing the DT4 patch and we are confident that operating
with VRF strict mode is a sound approach also for DT6.
Thanks
Andrea,
Hi Jakub,
Please see my responses inline:
On Fri, 13 Nov 2020 15:54:37 -0800
Jakub Kicinski wrote:
> On Sat, 14 Nov 2020 00:00:24 +0100 Andrea Mayer wrote:
> > On Fri, 13 Nov 2020 13:40:10 -0800
> > Jakub Kicinski wrote:
> >
> > I can tackle the v6 version but how d
s the right call so I asked DaveM.
>
> DaveM raised a concern that unless we implement v6 now we can't be sure
> the interface we create for v4 is going to fit there.
>
> So Andrea unless it's a major hurdle, could you take a stab at the v6
> version with VRFs as part of this seri
On Fri, Nov 13, 2020 at 06:54:24PM +, Wei Liu wrote:
> On Fri, Nov 13, 2020 at 11:33:27AM +, Wei Liu wrote:
> > On Mon, Nov 09, 2020 at 11:04:01AM +0100, Andrea Parri (Microsoft) wrote:
> > > From: Andres Beltran
> > >
> > > Currently, pointers t
Hi Jakub,
many thanks for your review. Please see my responses inline:
On Tue, 10 Nov 2020 15:12:55 -0800
Jakub Kicinski wrote:
> On Sat, 7 Nov 2020 16:31:38 +0100 Andrea Mayer wrote:
> > SRv6 End.DT4 is defined in the SRv6 Network Programming [1].
> >
> > The
Hi Jakub,
many thanks for your review. Please see my responses inline:
On Tue, 10 Nov 2020 14:56:55 -0800
Jakub Kicinski wrote:
> On Sat, 7 Nov 2020 16:31:37 +0100 Andrea Mayer wrote:
> > We introduce two callbacks used for customizing the creation/destruction of
> >
Hi Jakub,
many thanks for your review. Please see my responses inline:
On Tue, 10 Nov 2020 14:50:21 -0800
Jakub Kicinski wrote:
> On Sat, 7 Nov 2020 16:31:36 +0100 Andrea Mayer wrote:
> > Depending on the attribute (i.e.: SEG6_LOCAL_SRH, SEG6_LOCAL_TABLE, etc),
> > the p
Hi Jakub,
On Tue, 10 Nov 2020 14:50:45 -0800
Jakub Kicinski wrote:
> On Sat, 7 Nov 2020 16:31:35 +0100 Andrea Mayer wrote:
> > Before this patch, a sniffer attached to a VRF used as the receiving
> > interface of L3 tunneled packets detects them as malformed packets and
> &g
everything down while preserving the initial behavior of preventing
> CPU offlining on the VMBUS_CONNECT_CPU while the VM is running.
>
> Fixes: 8a857c55420f29 ("Drivers: hv: vmbus: Always handle the VMBus messages
> on CPU0")
> Signed-off-by: Chris Co
> Cc: sta...@vger.kernel.org
Revie
validating its length and offset fields in hv_pkt_iter_first().
In this way, the packet can no longer be modified by the host.
Signed-off-by: Andres Beltran
Co-developed-by: Andrea Parri (Microsoft)
Signed-off-by: Andrea Parri (Microsoft)
Cc: "David S. Miller"
Cc: Jakub Kicinski
Cc:
of the icversion_data
array in vmbus_prep_negotiate_resp().
Signed-off-by: Andres Beltran
Co-developed-by: Andrea Parri (Microsoft)
Signed-off-by: Andrea Parri (Microsoft)
---
Changes in v3:
- Add size check for icframe_vercnt and icmsg_vercnt
Changes in v2:
- Use ratelimited form of kernel
integers generated by vmbus_requestor as requests
(transaction) IDs.
Signed-off-by: Andres Beltran
Co-developed-by: Andrea Parri (Microsoft)
Signed-off-by: Andrea Parri (Microsoft)
Reviewed-by: Michael Kelley
Acked-by: Jakub Kicinski
Cc: "David S. Miller"
Cc: Jakub Kicinsk
integers generated by vmbus_requestor as requests
(transaction) IDs.
Signed-off-by: Andres Beltran
Co-developed-by: Andrea Parri (Microsoft)
Signed-off-by: Andrea Parri (Microsoft)
Reviewed-by: Michael Kelley
Cc: "James E.J. Bottomley"
Cc: "Martin K. Petersen"
Cc: linux-
, and
allocates/frees the memory needed for vmbus_requestor.
The second and third patches make use of vmbus_requestor to send request
IDs to Hyper-V in storvsc and netvsc respectively.
The series is based on 5.10-rc3. Changelog in the actual patches.
Andrea
Cc: James E.J. Bottomley
Cc: Martin K. Petersen
a
bad request ID that is then treated as the address of a guest data
structure with no validation. Instead, encapsulate these memory
addresses and provide small integers as request IDs.
Signed-off-by: Andres Beltran
Co-developed-by: Andrea Parri (Microsoft)
Signed-off-by: Andrea Parri (Microsoft
.
Comments, suggestions and improvements are very welcome!
Thanks,
Andrea Mayer
v2
no changes made: resubmitted after false build report.
v1
improve comments;
add new patch 2/5 titled: seg6: improve management of behavior attributes
seg6: add support for the SRv6 End.DT4 behavior
- remove
the
information needed to handle a given attribute are contained in only
one place;
4) it facilitates the integration with new features introduced in further
patches.
Signed-off-by: Andrea Mayer
---
net/ipv6/seg6_local.c | 103 ++
1 file changed, 93
this selftest is designed for evaluating the new SRv6 End.DT4 behavior
used, in this example, for implementing IPv4 L3 VPN use cases.
Signed-off-by: Andrea Mayer
---
.../selftests/net/srv6_end_dt4_l3vpn_test.sh | 494 ++
1 file changed, 494 insertions(+)
create mode 100755
-with-srv6
[3] https://patchwork.ozlabs.org/patch/799837/
Signed-off-by: Andrea Mayer
---
net/ipv6/seg6_local.c | 205 ++
1 file changed, 205 insertions(+)
diff --git a/net/ipv6/seg6_local.c b/net/ipv6/seg6_local.c
index 4b0f155d641d..a41074acd43e 100644
--- a/net
is not set.
In this case, the mac address of the VRF is copied in both the
destination and the source address of the ethernet header. The protocol
type is set either to IPv4 or IPv6, depending on which L3 packet is
received.
Signed-off-by: Andrea Mayer
---
drivers/net/vrf.c | 78
during its initialization phase and after all the attributes
have been parsed successfully;
- destroy_state(...): used for calling the custom destructor of the
behavior before it is completely destroyed.
Signed-off-by: Andrea Mayer
---
net/ipv6/seg6_local.c | 64
On Mon, Nov 02, 2020 at 10:09:28AM +0100, Andrea Righi wrote:
> On Mon, Nov 02, 2020 at 09:56:58AM +0100, Pavel Machek wrote:
> > Hi!
> >
> > > > > I'm getting the following lockdep splat (see below).
> > > > >
> > > > >
+ if (rqst_id == VMBUS_RQST_ERROR) {
> + pr_err("No request id available\n");
> + return -EAGAIN;
FYI, the lkp kernel test robot reported a missing call to
spin_unlock_irqrestore(_info->ring_lock, flags) before the
above 'return': I'll address this in the next submission.
Andrea
On Wed, Nov 04, 2020 at 01:45:05PM -0800, Jakub Kicinski wrote:
> On Wed, 4 Nov 2020 13:43:48 -0800 Jakub Kicinski wrote:
> > On Wed, 4 Nov 2020 16:40:27 +0100 Andrea Parri (Microsoft) wrote:
> > > From: Andres Beltran
> > >
> > > Currently, pointers t
, instead of keeping the dup around and applying the same update
to the dup.
Note: as far as I can tell spec_store_bypass_disable= documentation is
not duplicated in spectre.rst, that's better in my view. The more dups
we have the more one goes out of sync..
Andrea Arcangeli (1):
x86: deduplicate
This would need updating to make prctl be the new default, but it's
simpler to delete it and refer to the dup.
Signed-off-by: Andrea Arcangeli
---
Documentation/admin-guide/hw-vuln/spectre.rst | 51 +--
1 file changed, 2 insertions(+), 49 deletions(-)
diff --git a/Documentation
ER_PRCTL
(gdb) print spectre_v2_user_ibpb
$2 = SPECTRE_V2_USER_PRCTL
(gdb) print ssb_mode
$3 = SPEC_STORE_BYPASS_PRCTL
Acked-by: Kees Cook
Signed-off-by: Andrea Arcangeli
---
Documentation/admin-guide/hw-vuln/spectre.rst | 10 --
Documentation/admin-guide/kernel-parameters.txt | 5 ++---
On Thu, Nov 05, 2020 at 12:22:29AM +0100, Thomas Gleixner wrote:
> On Wed, Nov 04 2020 at 16:57, Andrea Arcangeli wrote:
> > ---
> > Documentation/admin-guide/kernel-parameters.txt | 5 ++---
>
> Is Documentation/admin-guide/hw-vuln/* still correct? If not, please
> fix
his codebase
to the upstream kernel with both STIBP/SSBD enabled in seccomp jails.
Here's below a tentative RFC, the code is actually trivial, if you
could help reviewing/improving the commit header it would be great.
Thanks,
Andrea
>From 3f7adb783262dc7f4e71cdbf07b4ef9f6b8d3ed9 Mon Sep 17 00
integers generated by vmbus_requestor as requests
(transaction) IDs.
Signed-off-by: Andres Beltran
Co-developed-by: Andrea Parri (Microsoft)
Signed-off-by: Andrea Parri (Microsoft)
Reviewed-by: Michael Kelley
Cc: "David S. Miller"
Cc: Jakub Kicinski
Cc: net...@vger.kernel.org
---
d
a
bad request ID that is then treated as the address of a guest data
structure with no validation. Instead, encapsulate these memory
addresses and provide small integers as request IDs.
Signed-off-by: Andres Beltran
Co-developed-by: Andrea Parri (Microsoft)
Signed-off-by: Andrea Parri (Microsoft
integers generated by vmbus_requestor as requests
(transaction) IDs.
Signed-off-by: Andres Beltran
Co-developed-by: Andrea Parri (Microsoft)
Signed-off-by: Andrea Parri (Microsoft)
Reviewed-by: Michael Kelley
Cc: "James E.J. Bottomley"
Cc: "Martin K. Petersen"
Cc: linux-
Hi all,
This is a resubmission of:
https://lkml.kernel.org/r/20200907161920.71460-1-parri.and...@gmail.com
based on 5.10-rc2.
Andrea
Cc: James E.J. Bottomley
Cc: Martin K. Petersen
Cc: "David S. Miller"
Cc: Jakub Kicinski
Cc: linux-s...@vger.kernel.org
Cc: net...@vger.
during its initialization phase and after all the attributes
have been parsed successfully;
- destroy_state(...): used for calling the custom destructor of the
behavior before it is completely destroyed.
Signed-off-by: Andrea Mayer
---
net/ipv6/seg6_local.c | 64
is not set.
In this case, the mac address of the VRF is copied in both the
destination and the source address of the ethernet header. The protocol
type is set either to IPv4 or IPv6, depending on which L3 packet is
received.
Signed-off-by: Andrea Mayer
---
drivers/net/vrf.c | 78
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