> -Original Message-
> From: Verma, Vishal L [mailto:vishal.l.ve...@intel.com]
> Sent: Tuesday, January 8, 2019 7:02 AM
> To: linux-nvdimm@lists.01.org; Qi, Fuli/斉 福利
> Subject: Re: [ndctl PATCH v2 2/2] ndctl, monitor: refactor read_config_file
>
>
> On Mon, 2019-01-07 at 17:38 +0900,
> > > > >
> > > > > Hi Qi,
> > > > >
> > > > > Thanks for these patches, and also for rebasing to the latest!
> > > > >
> > > > > ciniparser.c adds a new warning (see below). Could you fix that
> > > > > up in a new patch on top of the initial import (i.e. we retain
> > > > > the as-is import, and
On Wed, Jan 09, 2019 at 08:17:31PM +0530, Pankaj Gupta wrote:
> This patch series has implementation for "virtio pmem".
> "virtio pmem" is fake persistent memory(nvdimm) in guest
> which allows to bypass the guest page cache. This also
> implements a VIRTIO based asynchronous flush
[ switch to text mail, add lkml and Naoya ]
On Wed, Jan 9, 2019 at 12:19 PM Jane Chu wrote:
>
> Hi, Dan,
>
> Sorry for the late report.
> We recently saw panics from PMEM error handling, here are the log messages
> and stack trace. "<--" are added by me.
>
> > [ 4488.098830] mce: Uncorrected
On Wed, 2019-01-09 at 10:54 -0700, Dave Jiang wrote:
> Add support for disable security to libndctl and also command line option
> of "disable-passphrase" for ndctl. This provides a way to disable security
> on the nvdimm.
>
> Signed-off-by: Dave Jiang
> ---
> Documentation/ndctl/Makefile.am
On Wed, 2019-01-09 at 10:54 -0700, Dave Jiang wrote:
> Adding reference config file for modprobe.d in order to trigger the
> reference script that will inject keys associated with the nvdimms
> into
> the kernel user ring for unlock.
>
> Signed-off-by: Dave Jiang
> ---
> Makefile.am
On Wed, 2019-01-09 at 10:54 -0700, Dave Jiang wrote:
> Add unit test for security enable, disable, update, erase, unlock, and
> freeze.
>
> Signed-off-by: Dave Jiang
> ---
> test/Makefile.am |4 +
> test/security.sh | 203
> ++
> 2
Hi, Dan,
Sorry for the late report.
We recently saw panics from PMEM error handling, here are the log messages
and stack trace. "<--" are added by me.
[ 4488.098830] mce: Uncorrected hardware memory error in user-access at a6ec46f8
<--
[ 4488.131625] Memory failure: 0xa6ec46f: forcibly
> >
> > This patch adds 'DAXDEV_BUFFERED' flag which is set
> > for virtio pmem corresponding nd_region. This later
> > is used to disable MAP_SYNC functionality for ext4
> > & xfs filesystem.
> >
> > Signed-off-by: Pankaj Gupta
> > ---
> > drivers/dax/super.c | 17 +
>
> > Virtio pmem provides asynchronous host page cache flush
> > mechanism. we don't support 'MAP_SYNC' with virtio pmem
> > and xfs.
> >
> > Signed-off-by: Pankaj Gupta
> > ---
> > fs/xfs/xfs_file.c | 8
> > 1 file changed, 8 insertions(+)
> >
> > diff --git a/fs/xfs/xfs_file.c
Adding master passphrase enabling and update to ndctl. This is a new
feature from Intel DSM v1.8.
Signed-off-by: Dave Jiang
---
Documentation/ndctl/ndctl-enable-passphrase.txt |7 +
Documentation/ndctl/ndctl-update-passphrase.txt |7 +
ndctl/dimm.c|
Add a "Theory of Operation" section describing the Intel DSM operations to
the relevant man pages.
Signed-off-by: Dave Jiang
---
Documentation/ndctl/intel-nvdimm-security.txt| 140 ++
Documentation/ndctl/ndctl-disable-passphrase.txt |2
Intel DSM v1.8 introduced the concept of master passphrase and allowing
nvdimm to be secure erased via the master passphrase in addition to the
user passphrase. Add ndctl support to provide master passphrase secure
erase.
Signed-off-by: Dave Jiang
---
Documentation/ndctl/ndctl-sanitize-dimm.txt
Add a blocking 'wait-overwrite' command to ndctl to let a user wait for an
overwrite operation on a dimm to complete.
Signed-off-by: Dave Jiang
---
Documentation/ndctl/Makefile.am |3 +
Documentation/ndctl/ndctl-wait-overwrite.txt | 31 ++
ndctl/builtin.h
Adding reference config file for modprobe.d in order to trigger the
reference script that will inject keys associated with the nvdimms into
the kernel user ring for unlock.
Signed-off-by: Dave Jiang
---
Makefile.am | 10 ++
contrib/ndctl-loadkeys.sh| 25
Add unit test for security enable, disable, update, erase, unlock, and
freeze.
Signed-off-by: Dave Jiang
---
test/Makefile.am |4 +
test/security.sh | 203 ++
2 files changed, 207 insertions(+)
create mode 100755 test/security.sh
diff
Add support for freeze security to libndctl and also command line option
of "freeze-security" for ndctl. This will lock the ability to make changes
to the NVDIMM security.
Signed-off-by: Dave Jiang
---
Documentation/ndctl/Makefile.am |3 ++-
Adding libndctl API call for retrieving security state for a DIMM and also
adding support to ndctl list for displaying security state.
Signed-off-by: Dave Jiang
---
Documentation/ndctl/ndctl-list.txt |8
ndctl/lib/dimm.c | 37
Add support to secure erase to libndctl and also command line option
of "sanitize-dimm" for ndctl. This will initiate the request to crypto
erase a DIMM.
Signed-off-by: Dave Jiang
---
Documentation/ndctl/Makefile.am |3 +-
Documentation/ndctl/ndctl-sanitize-dimm.txt | 37
Add support for disable security to libndctl and also command line option
of "disable-passphrase" for ndctl. This provides a way to disable security
on the nvdimm.
Signed-off-by: Dave Jiang
---
Documentation/ndctl/Makefile.am |3 +-
Add API call for triggering sysfs knob to update the security for a DIMM
in libndctl. Also add the ndctl "update-passphrase" to trigger the
operation.
Signed-off-by: Dave Jiang
---
Documentation/ndctl/Makefile.am |4
Documentation/ndctl/ndctl-enable-passphrase.txt | 42 ++
The following series implements mechanisms that utilize the sysfs knobs
provided by the kernel in order to support the Intel DSM v1.8 spec
that provides security to NVDIMM. The following abilities are added:
1. display security state
2. enable/update passphrase
3. disable passphrase
4. freeze
On Wed, Jan 9, 2019 at 5:53 AM Pankaj Gupta wrote:
>
> This patch adds 'DAXDEV_BUFFERED' flag which is set
> for virtio pmem corresponding nd_region. This later
> is used to disable MAP_SYNC functionality for ext4
> & xfs filesystem.
>
> Signed-off-by: Pankaj Gupta
> ---
> drivers/dax/super.c
On Wed, Jan 09, 2019 at 08:17:36PM +0530, Pankaj Gupta wrote:
> Virtio pmem provides asynchronous host page cache flush
> mechanism. we don't support 'MAP_SYNC' with virtio pmem
> and xfs.
>
> Signed-off-by: Pankaj Gupta
> ---
> fs/xfs/xfs_file.c | 8
> 1 file changed, 8 insertions(+)
>
> On Wed 09-01-19 19:26:05, Pankaj Gupta wrote:
> > Virtio pmem provides asynchronous host page cache flush
> > mechanism. We don't support 'MAP_SYNC' with virtio pmem
> > and ext4.
> >
> > Signed-off-by: Pankaj Gupta
> ...
> > @@ -371,6 +373,13 @@ static int ext4_file_mmap(struct file
This patch series has implementation for "virtio pmem".
"virtio pmem" is fake persistent memory(nvdimm) in guest
which allows to bypass the guest page cache. This also
implements a VIRTIO based asynchronous flush mechanism.
Sharing guest kernel driver in this patchset with the
changes
This patch adds 'DAXDEV_BUFFERED' flag which is set
for virtio pmem corresponding nd_region. This later
is used to disable MAP_SYNC functionality for ext4
& xfs filesystem.
Signed-off-by: Pankaj Gupta
---
drivers/dax/super.c | 17 +
drivers/nvdimm/pmem.c| 3 +++
This patch adds virtio-pmem driver for KVM guest.
Guest reads the persistent memory range information from
Qemu over VIRTIO and registers it on nvdimm_bus. It also
creates a nd_region object with the persistent memory
range information so that existing 'nvdimm/pmem' driver
can reserve this into
Virtio pmem provides asynchronous host page cache flush
mechanism. we don't support 'MAP_SYNC' with virtio pmem
and xfs.
Signed-off-by: Pankaj Gupta
---
fs/xfs/xfs_file.c | 8
1 file changed, 8 insertions(+)
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index e474250..eae4aa4
Virtio pmem provides asynchronous host page cache flush
mechanism. We don't support 'MAP_SYNC' with virtio pmem
and ext4.
Signed-off-by: Pankaj Gupta
---
fs/ext4/file.c | 11 ++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index
This patch adds functionality to perform flush from guest
to host over VIRTIO. We are registering a callback based
on 'nd_region' type. virtio_pmem driver requires this special
flush function. For rest of the region types we are registering
existing flush function. Report error returned by host
Please ignore this series as my network went down while
sending this. I will send this series again.
Thanks,
Pankaj
>
> This patch series has implementation for "virtio pmem".
> "virtio pmem" is fake persistent memory(nvdimm) in guest
> which allows to bypass the guest page cache. This
Virtio pmem provides asynchronous host page cache flush
mechanism. we don't support 'MAP_SYNC' with virtio pmem
and xfs.
Signed-off-by: Pankaj Gupta
---
fs/xfs/xfs_file.c | 8
1 file changed, 8 insertions(+)
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index e474250..eae4aa4
This patch adds 'DAXDEV_BUFFERED' flag which is set
for virtio pmem corresponding nd_region. This later
is used to disable MAP_SYNC functionality for ext4
& xfs filesystem.
Signed-off-by: Pankaj Gupta
---
drivers/dax/super.c | 17 +
drivers/nvdimm/pmem.c| 3 +++
This patch adds virtio-pmem driver for KVM guest.
Guest reads the persistent memory range information from
Qemu over VIRTIO and registers it on nvdimm_bus. It also
creates a nd_region object with the persistent memory
range information so that existing 'nvdimm/pmem' driver
can reserve this into
This patch adds functionality to perform flush from guest
to host over VIRTIO. We are registering a callback based
on 'nd_region' type. virtio_pmem driver requires this special
flush function. For rest of the region types we are registering
existing flush function. Report error returned by host
This patch series has implementation for "virtio pmem".
"virtio pmem" is fake persistent memory(nvdimm) in guest
which allows to bypass the guest page cache. This also
implements a VIRTIO based asynchronous flush mechanism.
Sharing guest kernel driver in this patchset with the
changes
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