The FUSA folder is expected to contain requirements and other documents
to enable safety certification of Xen hypervisor.
Added a intro to explain how the requirements are categorized, written
and their supported status.
Also, added index.rst for inclusion in build docs.
Added maintainers for the same.
Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@amd.com>
Acked-by: Bertrand Marquis <bertrand.marquis@arm.com>
Acked-by: Michal Orzel <michal.orzel@amd.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Arm's setup.c contains a collection of functions for parsing memory map
and other boot information from a device tree. Since these routines are
generally useful on any architecture that supports device tree booting,
move them into xen/common/device-tree.
Also, common/device_tree.c has been moved to the device-tree folder with
the corresponding updates to common/Makefile and common/device-tree/Makefile.
Mentioning of arm32 is changed to CONFIG_SEPARATE_XENHEAP in comparison with
original ARM's code as now it is moved in common code.
Suggested-by: Julien Grall <julien@xen.org>
Signed-off-by: Shawn Anastasio <sanastasio@raptorengineering.com>
Signed-off-by: Oleksii Kurochko <oleksii.kurochko@gmail.com>
Acked-by: Julien Grall <jgrall@amazon.com>
With Arm port being the major recipient of dt related patches and the
future need of incorporating dt support into other ports, we'd like to
keep an eye on these changes.
Signed-off-by: Michal Orzel <michal.orzel@amd.com>
Acked-by: Bertrand Marquis <bertrand.marquis@arm.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
The CPU POOLS sections in MAINTAINERS can be dropped, as the SCHEDULING
section has the same maintainers and it is covering the CPU POOLS files
as well.
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
Let the subtree fall under general x86 maintainership instead, then also
properly reflecting Roger's role there.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Remain a Reviewer on the golang bindings and scheduler for now (using
a xenproject.org alias), since there may be architectural decisions I
can shed light on.
Remove the XENTRACE section entirely, as there's no obvious candidate
to take it over; having the respective parts fall back to the tools
and The Rest seems the most reasonable option.
Signed-off-by: George Dunlap <george.dunlap@cloud.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Acked-by: Juergen Gross <jgross@suse.com>
Acked-by: Bertrand Marquis <bertrand.marquis@arm.com>
To get past the recurring friction on the approach to take wrt
workarounds needed for various firmware flaws, I'm stepping down as the
maintainer of our code interfacing with EFI firmware. Two new
maintainers are being introduced in my place.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Marek Marczykowski <marmarek@invisiblethingslab.com>
Acked-by: Daniel P. Smith <dpsmith@apertussolutions.com>
Release-Acked-by: Oleksii Kurochko <oleksii.kurochko@gmail.com>
I've been active in the scheduling code since many years now. Add
me as a maintainer.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: George Dunlap <george.dunlap@cloud.com>
Remove Konrad from the livepatch maintainers list as he hasn't been
active for a few years.
At the same time, add Roger as a new maintainer since he has been
actively working on it for a while.
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
I have experience with the IMX8QXP, and the supported parts of the IMX8QM
are identical.
Help review patches touching these areas.
Signed-off-by: John Ernberg <john.ernberg@actia.se>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Acked-by: Peng Fan <peng.fan@nxp.com>
I have not been active in the Xen community for some time. Update the
MAINTAINERS file to reflect reality.
Signed-off-by: Wei Liu <wl@xen.org>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
We'd like to thank Kevin, so far the VT-d maintainer, for his past
contributions, while at the same time we'd like to reflect reality as it
has been for quite some time. Have VT-d maintainership (and for symmetry
also AMD IOMMU's) fall back to the maintainers of general x86. This also
brings things in sync with how they are for Arm.
While touching the X86 section also append two so far missing slashes.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Kevin Tian <kevin.tian@intel.com>
I am not as actively involved with the Xen project as I once was so I need
to relinquish some of my maintainer responsibilities: IOMMU and I/O
emulation.
NOTE: Since I am sole maintainer for I/O EMULATION (IOREQ) and
X86 I/O EMULATION, these sections are removed.
Signed-off-by: Paul Durrant <pdurrant@amazon.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
We'd like to thank the VT-x maintainers for their past contributions,
while at the same time we'd like to reflect reality as it has been for
quite some time. Have VT-x maintainership (and for symmetry also AMD
SVM's) fall back to general x86.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Acked-by: Kevin Tian <kevin.tian@intel.com>
I've been the main contributor to Mini-OS since several years now.
Add me as a maintainer.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
I've finished the opportunity to do two releases (4.17 and 4.18)
and Oleksii Kurochko has volunteered to be the next release manager.
Hand over the role to him by changing the maintainership of the
CHANGELOG.md.
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
Acked-by: Julien Grall <jgrall@amazon.com>
Acked-by: Oleksii Kurochko <oleksii.kurochko@gmail.com>
Following a conversation with Bob Eschleman, it was agreed that
Bobby would prefer to return to being a Reviewer.
Signed-off-by: George Dunlap <george.dunlap@cloud.com>
Release-acked-by: Henry Wang <Henry.Wang@arm.com>
Acked-by: Julien Grall <jgrall@amazon.com>
I unfortunately don't have time to be a Xen maintainer, so remove myself
as the maintainer.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Replace Arm- and x86-specific lines with wildcard ones, thus covering
all architectures. Uniformly permit an extra sub-directory level to be
used, as is already the case for xen/include/.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Tamas K Lengyel <tamas@tklengyel.com>
Introduce sysctl XEN_SYSCTL_dt_overlay to remove device-tree nodes added using
device tree overlay.
xl dt-overlay remove file.dtbo:
Removes all the nodes in a given dtbo.
First, removes IRQ permissions and MMIO accesses. Next, it finds the nodes
in dt_host and delete the device node entries from dt_host.
The nodes get removed only if it is not used by any of dom0 or domio.
Also, added overlay_track struct to keep the track of added node through device
tree overlay. overlay_track has dt_host_new which is unflattened form of updated
fdt and name of overlay nodes. When a node is removed, we also free the memory
used by overlay_track for the particular overlay node.
Nested overlay removal is supported in sequential manner only i.e. if
overlay_child nests under overlay_parent, it is assumed that user first removes
overlay_child and then removes overlay_parent.
Also, this is an experimental feature so it is expected from user to make sure
correct device tree overlays are used when adding nodes and making sure devices
are not being used by other domain before removing them from Xen tree.
Partially added/removed i.e. failures while removing the overlay may cause other
failures and might need a system reboot.
Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
If the F: description is to be trusted, the two xen/arch/x86/hvm/
lines were fully redundant with the earlier wildcard ones. Arch header
files, otoh, were no longer covered by anything as of the move from
include/asm-*/ to arch/*/include/asm/. Further also generalize (by
folding) the x86- and Arm-specific mem_access.c entries.
Finally, again assuming the F: description can be trusted, there's no
point listing arch/, common/, and include/ entries separately. Fold
them all.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Tamas K Lengyel <tamas@tklengyel.com>
In tools/xenstore there are living xenstored and xenstore clients.
They are no longer sharing anything apart from the "xenstore" in their
names.
Move the xenstored sources into a new directory tools/xenstored while
dropping the "xenstored_" prefix from their names. This will make it
clearer that xenstore clients and xenstored are independent from each
other.
In order to avoid two very similar named directories below tools,
rename tools/xenstore to tools/xs-clients.
Drop the make targets [un]install-clients as those are not used in
the Xen tree.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Julien Grall <jgrall@amazon.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Add the script to the X86 section in ./MAINTAINERS.
Structures or unions without any named members aren't liked by Misra
(nor the C standard). Avoid emitting such for leaves without any known
bits.
The placeholders are affected similarly, but are only visible to MISRA in the
middle of a patch series adding a new leaf. The absence of a name was
intentional as these defines need to not duplicate names.
As that's not deemed acceptable any more, move placeholder processing into the
main loop and append the the word number to generate unique names.
$ diff cpuid-autogen-{before,after}.h
@@ -1034,7 +1034,7 @@
bool intel_psfd:1, ipred_ctrl:1, rrsba_ctrl:1, ddp_ctrl:1, ...
#define CPUID_BITFIELD_14 \
- bool :1, :1, :1, :1, :1, :1, :1, :1, :1, :1, :1, :1, :1, :1, ...
+ uint32_t _placeholder_14
#define CPUID_BITFIELD_15 \
bool :1, :1, :1, :1, avx_vnni_int8:1, avx_ne_convert:1, :1, ...
@@ -1043,19 +1043,19 @@
bool rdcl_no:1, eibrs:1, rsba:1, skip_l1dfl:1, intel_ssb_no:1, ...
#define CPUID_BITFIELD_17 \
- bool :1, :1, :1, :1, :1, :1, :1, :1, :1, :1, :1, :1, :1, :1, ...
+ uint32_t _placeholder_17
#define CPUID_BITFIELD_18 \
- uint32_t :32 /* placeholder */
+ uint32_t _placeholder_18
#define CPUID_BITFIELD_19 \
- uint32_t :32 /* placeholder */
+ uint32_t _placeholder_19
#define CPUID_BITFIELD_20 \
- uint32_t :32 /* placeholder */
+ uint32_t _placeholder_20
#define CPUID_BITFIELD_21 \
- uint32_t :32 /* placeholder */
+ uint32_t _placeholder_21
#endif /* __XEN_X86__FEATURESET_DATA__ */
No functional change.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Instead of including the same small C source in multiple binaries from
2 source directories, use a header file with inline functions as a
replacement.
As some of the functions are exported by libxenstore, rename the inline
functions from xs_*() do xenstore_*() and add xs_*() wrappers to
libxenstore.
With that no sources required to build libxenstore are left in
tools/xenstore, so the file COPYING can be removed now.
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Julien Grall <jgrall@amazon.com>
There is no need to have the Xenstore headers listed in the LIBS
section now that they have been added to the XENSTORE section.
Suggested-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
XSM is a subsystem where it is equally important of how and where its hooks are
called as is the implementation of the hooks. The people best suited for
evaluating the how and where are the XSM maintainers and reviewers. This
creates a challenge as the hooks are used throughout the hypervisor for which
the XSM maintainers and reviewers are not, and should not be, a reviewer for
each of these subsystems in the MAINTAINERS file. Though the MAINTAINERS file
does support the use of regex matches, 'K' identifier, that are applied to both
the commit message and the commit delta. Adding the 'K' identifier will declare
that any patch relating to XSM require the input from the XSM maintainers and
reviewers. For those that use the get_maintianers script, the 'K' identifier
will automatically add the XSM maintainers and reviewers. Any one not using
get_maintainers, it will be their responsibility to ensure that if their work
touches and XSM hook, to ensure the XSM maintainers and reviewers are copied.
This patch adds a pair of regex expressions to the XSM section. The first is
`xsm_.*` which seeks to match XSM hooks in the commit's delta. The second is
`\b(xsm|XSM)\b` which seeks to match strictly the words xsm or XSM and should
not capture words with a substring of "xsm".
Signed-off-by: Daniel P. Smith <dpsmith@apertussolutions.com>
Acked-by: Julien Grall <jgrall@amazon.com>
There was a question raised recently about the requirements for
checking in a patch which was originally written by one maintainer,
then picked up and modified by a second maintainer, and which they now both
agree should be checked in.
It was proposed that in that case, the following set of tags would suffice:
Signed-off-by: First Author <...>
Signed-off-by: Second Author <...>
Reviewed-by: First Author <...>
The rationale was as follows:
1. The patch will be a mix of code, whose copyright is owned by the
various authors (or the companies they work for). It's important to
keep this information around in the event, for instance, of a license
change or something else requiring knowledge of the copyright owner.
2. The Signed-off-by of the Second Author approves not only their own
code, but First Author's code; the Reviewed-by of the First Author
approves not only their own code, but the Second Author's code. Thus
all the code has been approved by a maintainer, as well as someone who
was not the author.
In support of this, several arguments were put forward:
* We shouldn't make it harder for maintainers to get their code in
than for non-maintainers
* The system we set up should not add pointless bureaucracy; nor
discourage collaboration; nor encourage contributors to get around
the rules by dropping important information. (For instance, by
removing the first SoB, so that the patch appears to have been
written entirely by Second Author.)
Concerns were raised about two maintainers from the same company
colluding to get a patch in from their company; but such maintainers
could already collude, by working on the patch in secret, and posting
it publicly with only a single author's SoB, and having the other
person review it.
There's also something slightly strange about adding "Reviewed-by" to
code that you've written; but in the end you're reviewing not only the
code itself, but the final arrangement of it. There's no need to
overcomplicate things.
Encode this in MAINTAINERS as follows:
* Refine the wording of requirement #2 in the check-in policy; such
that *each change* must have approval from someone other than *the
person who wrote it*.
* Add a paragraph explicitly stating that the multiple-SoB-approval
system satisfies the requirements, and why.
Signed-off-by: George Dunlap <george.dunlap@cloud.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Julien Grall <jgrall@amazon.com>
Add Nathan Studer as co-maintainer.
I am departing DornerWorks. I will still be working with Xen in my next
role, and I still have an interest in co-maintaining the ARINC 653
scheduler, so change to my personal email address.
Signed-off-by: Stewart Hildebrand <stewart.hildebrand@dornerworks.com>
Acked-by: Nathan Studer <nathan.studer@dornerworks.com>
While mail hasn't been bouncing, Daniel De Graaf has not been
responding to patch submissions or otherwise interacting with the
community for several years. Daniel Smith has at least been working
with the code, and is a regular member of our community; and he has
agreed to step up into the role.
Signed-off-by: George Dunlap <george.dunlap@citrix.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
I'm the main contributor for Mini-OS since several years now.
Add myself as reviewer.
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Introduce a way to create different cpupools at boot time, this is
particularly useful on ARM big.LITTLE system where there might be the
need to have different cpupools for each type of core, but also
systems using NUMA can have different cpu pools for each node.
The feature on arm relies on a specification of the cpupools from the
device tree to build pools and assign cpus to them.
ACPI is not supported for this feature.
With this patch, cpupool0 can now have less cpus than the number of
online ones, so update the default case for opt_dom0_max_vcpus.
Documentation is created to explain the feature.
Signed-off-by: Luca Fancellu <luca.fancellu@arm.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
Acked-by: George Dunlap <george.dunlap@citrix.com>
Add Rahul as ARM SMMU maintainer. Create a new explicit entry for "ARM
SMMU" also with Julien which is the original contributor of the code and
continues to maintain it.
Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: Bertrand Marquis <bertrand.marquis@arm.com>
Acked-by: Rahul Singh <rahul.singh@arm.com>
Acked-by: Julien Grall <julien@xen.org>
I have contributed all the ARM tests to gitlab-ci. After checking with
Doug, I am happy to volunteer to co-maintain Continuous Integration.
Also take the opportunity to remove the stale travis-ci entries.
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
Acked-by: Doug Goldstein <cardoe@cardoe.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
ARM has proposed Henry Wang as a release manager for 4.17. Signify
this by giving him maintainership over CHANGELOG.md.
Below is an introduction given by Bertrand Marquis:
Henry Wang is an open-source software engineer at Arm focusing on the
hypervisor and virtualization technology. Before joining the
AIS-Hypervisor team, he was one of the leading Arm contributors of the
Rust-VMM and the Cloud Hypervisor community. He is the Arm reviewer
of the Cloud Hypervisor project. His work includes basic project
enabling on Arm platform, Arm device emulation, advanced features
support on Arm and bug fixes.
After joining the AIS-Hypervisor team at Arm, he has been involved in Xen feature
development on Arm in various areas, including:
1. Xen Arm MPAM extension research and PoC: Ongoing, the design will
share in xen-devel soon.
2. Port of Xen to Arm MPU systems: Working together with Penny Zheng
on coding and testing, will be soon sent to xen-devel.
3. Static Xen heap on Arm: Work done but depend on the direct mapping
series from Penny Zheng, will be upstreamed in the next weeks.
4. Virtio PoC for Xen on Arm using kvmtool as the Xen virtio backend:
Work done, including the enabling of the virtio and the virtio
performance tuning.
5. Participated in code reviews and discussions in xen-devel,
including the foreign memory mapping series from EPAM, etc.
Signed-off-by: George Dunlap <george.dunlap@citrix.com>
Acked-by: Henry Wang <Henry.Wang@arm.com>
Acked-by: Julien Grall <jgrall@amazon.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Since Lukasz has left Intel, they have suggested a replacement contact.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Mateusz Mówka <mateusz.mowka@intel.com>
Ayan Kumar Halder