| a4131a50 | 11-Jul-2025 |
Naman Jain <namjain@linux.microsoft.com> |
tools/hv: fcopy: Fix irregularities with size of ring buffer
Size of ring buffer, as defined in uio_hv_generic driver, is no longer
fixed to 16 KB. This creates a problem in fcopy, since this size w
tools/hv: fcopy: Fix irregularities with size of ring buffer
Size of ring buffer, as defined in uio_hv_generic driver, is no longer
fixed to 16 KB. This creates a problem in fcopy, since this size was
hardcoded. With the change in place to make ring sysfs node actually
reflect the size of underlying ring buffer, it is safe to get the size
of ring sysfs file and use it for ring buffer size in fcopy daemon.
Fix the issue of disparity in ring buffer size, by making it dynamic
in fcopy uio daemon.
Cc: stable@vger.kernel.org
Fixes: 0315fef2aff9 ("uio_hv_generic: Align ring size to system page")
Signed-off-by: Naman Jain <namjain@linux.microsoft.com>
Reviewed-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: Long Li <longli@microsoft.com>
Link: https://lore.kernel.org/r/20250711060846.9168-1-namjain@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20250711060846.9168-1-namjain@linux.microsoft.com>
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| 175c71c2 | 09-Dec-2024 |
Olaf Hering <olaf@aepfle.de> |
tools/hv: reduce resource usage in hv_kvp_daemon
hv_kvp_daemon uses popen(3) and system(3) as convinience helper to
launch external helpers. These helpers are invoked via a
temporary shell process.
tools/hv: reduce resource usage in hv_kvp_daemon
hv_kvp_daemon uses popen(3) and system(3) as convinience helper to
launch external helpers. These helpers are invoked via a
temporary shell process. There is no need to keep this temporary
process around while the helper runs. Replace this temporary shell
with the actual helper process via 'exec'.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Link: https://lore.kernel.org/linux-hyperv/20241202123520.27812-1-olaf@aepfle.de/
Signed-off-by: Wei Liu <wei.liu@kernel.org>
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| becc7fe3 | 02-Dec-2024 |
Olaf Hering <olaf@aepfle.de> |
tools/hv: add a .gitignore file
Remove generated files from 'git status' output after 'make -C tools/hv'.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Link: https://lore.kernel.org/r/20241202124107.
tools/hv: add a .gitignore file
Remove generated files from 'git status' output after 'make -C tools/hv'.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Link: https://lore.kernel.org/r/20241202124107.28650-1-olaf@aepfle.de
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20241202124107.28650-1-olaf@aepfle.de>
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| a4d024fe | 02-Dec-2024 |
Olaf Hering <olaf@aepfle.de> |
tools/hv: reduce resouce usage in hv_get_dns_info helper
Remove the usage of cat. Replace the shell process with awk with 'exec'.
Also use a generic shell because no bash specific features will be u
tools/hv: reduce resouce usage in hv_get_dns_info helper
Remove the usage of cat. Replace the shell process with awk with 'exec'.
Also use a generic shell because no bash specific features will be used.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Acked-by: Wei Liu <wei.liu@kernel.org>
Link: https://lore.kernel.org/r/20241202120432.21115-1-olaf@aepfle.de
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20241202120432.21115-1-olaf@aepfle.de>
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| 07dfa6e8 | 12-Nov-2024 |
Vitaly Kuznetsov <vkuznets@redhat.com> |
hv/hv_kvp_daemon: Pass NIC name to hv_get_dns_info as well
The reference implementation of hv_get_dns_info which is in the tree uses
/etc/resolv.conf to get DNS servers and this does not require to
hv/hv_kvp_daemon: Pass NIC name to hv_get_dns_info as well
The reference implementation of hv_get_dns_info which is in the tree uses
/etc/resolv.conf to get DNS servers and this does not require to know which
NIC is queried. Distro specific implementations, however, may want to
provide per-NIC, fine grained information. E.g. NetworkManager keeps track
of DNS servers per connection.
Similar to hv_get_dhcp_info, pass NIC name as a parameter to
hv_get_dns_info script.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20241112150401.217094-1-vkuznets@redhat.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20241112150401.217094-1-vkuznets@redhat.com>
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| a9640fcd | 05-Nov-2024 |
Olaf Hering <olaf@aepfle.de> |
tools/hv: terminate fcopy daemon if read from uio fails
Terminate endless loop in reading fails, to avoid flooding syslog.
This happens if the state of "Guest services" integration service
is chang
tools/hv: terminate fcopy daemon if read from uio fails
Terminate endless loop in reading fails, to avoid flooding syslog.
This happens if the state of "Guest services" integration service
is changed from "enabled" to "disabled" at runtime in the VM
settings. In this case pread returns EIO.
Also handle an interrupted system call, and continue in this case.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Reviewed-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Link: https://lore.kernel.org/r/20241105081437.15689-1-olaf@aepfle.de
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20241105081437.15689-1-olaf@aepfle.de>
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| 91ae69c7 | 16-Oct-2024 |
Olaf Hering <olaf@aepfle.de> |
tools: hv: change permissions of NetworkManager configuration file
Align permissions of the resulting .nmconnection file, instead of
the input file from hv_kvp_daemon. To avoid the tiny time frame
w
tools: hv: change permissions of NetworkManager configuration file
Align permissions of the resulting .nmconnection file, instead of
the input file from hv_kvp_daemon. To avoid the tiny time frame
where the output file is world-readable, use umask instead of chmod.
Fixes: 42999c904612 ("hv/hv_kvp_daemon:Support for keyfile based connection profile")
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Reviewed-by: Shradha Gupta <shradhagupta@linux.microsoft.com>
Link: https://lore.kernel.org/r/20241016143521.3735-1-olaf@aepfle.de
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20241016143521.3735-1-olaf@aepfle.de>
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| c6e2b45a | 02-Jul-2024 |
Anthony Nandaa <profnandaa@gmail.com> |
tools: hv: lsvmbus: change shebang to use python3
In many modern Linux distros, running `lsvmbus` returns the error:
```
/usr/bin/env: 'python': No such file or directory
```
because 'python' doesn'
tools: hv: lsvmbus: change shebang to use python3
In many modern Linux distros, running `lsvmbus` returns the error:
```
/usr/bin/env: 'python': No such file or directory
```
because 'python' doesn't point anywhere.
Now that python2 has reached EOL as of January 1, 2020 and is no longer
maintained[1], these distros have python3 instead.
Also, the script isn't executable by default because the permissions are
set to mode 644.
Fix this by updating the shebang in the `lsvmbus` to use python3 instead
of python. Also fix the permissions to be 755 so that is executable by
default, which matches other similar scripts in `tools/hv`.
The script is also tested and verified that is compatible with
python3.
[1] https://www.python.org/doc/sunset-python-2/
Signed-off-by: Anthony Nandaa <profnandaa@gmail.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Link: https://lore.kernel.org/r/20240702102250.13935-1-profnandaa@gmail.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20240702102250.13935-1-profnandaa@gmail.com>
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| ec314f61 | 30-Mar-2024 |
Saurabh Sengar <ssengar@linux.microsoft.com> |
Drivers: hv: Remove fcopy driver
As the new fcopy driver using uio is introduced, remove obsolete driver
and application.
Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: Lo
Drivers: hv: Remove fcopy driver
As the new fcopy driver using uio is introduced, remove obsolete driver
and application.
Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: Long Li <longli@microsoft.com>
Link: https://lore.kernel.org/r/1711788723-8593-7-git-send-email-ssengar@linux.microsoft.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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| 82b0945c | 30-Mar-2024 |
Saurabh Sengar <ssengar@linux.microsoft.com> |
tools: hv: Add new fcopy application based on uio driver
New fcopy application using uio_hv_generic driver. This application
copies file from Hyper-V host to guest VM.
A big part of this code is co
tools: hv: Add new fcopy application based on uio driver
New fcopy application using uio_hv_generic driver. This application
copies file from Hyper-V host to guest VM.
A big part of this code is copied from tools/hv/hv_fcopy_daemon.c
which this new application is replacing.
Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: Long Li <longli@microsoft.com>
Link: https://lore.kernel.org/r/1711788723-8593-6-git-send-email-ssengar@linux.microsoft.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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| 22589542 | 23-Aug-2022 |
Zhou jie <zhoujie@nfschina.com> |
tools: hv: kvp: remove unnecessary (void*) conversions
Remove unnecessary void* type casting.
Signed-off-by: Zhou jie <zhoujie@nfschina.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Lin
tools: hv: kvp: remove unnecessary (void*) conversions
Remove unnecessary void* type casting.
Signed-off-by: Zhou jie <zhoujie@nfschina.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20220823034552.8596-1-zhoujie@nfschina.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
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