mirror of
https://github.com/xen-project/xen.git
synced 2026-10-28 02:01:24 +01:00
Andrew Cooper
fd4a15b1f7
There are no more users, and we want to disuade people from introducing new
users just for sd_notify() and friends. Drop the dependency.
We still want the overall --with{,out}-systemd to gate the generation of the
service/unit/mount/etc files.
Rerun autogen.sh, and mark the dependency as removed in the build containers.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Acked-by: Christian Lindig <christian.lindig@cloud.com>
tools: (Actually) drop libsystemd as a dependency
When reinstating some of systemd.m4 between v1 and v2, I reintroduced a little
too much. While {c,o}xenstored are indeed no longer linked against
libsystemd, ./configure still looks for it.
Drop this too.
Fixes: ae26101f6b ("tools: Drop libsystemd as a dependency")
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
master commit: ae26101f6b
master date: 2024-05-23 15:04:40 +0100
master commit: 6ef4fa1e7f
master date: 2024-05-30 12:15:25 +0100
179 lines
9.2 KiB
Markdown
179 lines
9.2 KiB
Markdown
# Changelog
|
|
|
|
Notable changes to Xen will be documented in this file.
|
|
|
|
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
|
|
|
|
## [4.17.5](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=RELEASE-4.17.5)
|
|
|
|
### Changed
|
|
- When building with Systemd support (./configure --enable-systemd), remove
|
|
libsystemd as a build dependency. Systemd Notify support is retained, now
|
|
using a standalone library implementation.
|
|
|
|
## [4.17.3](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=RELEASE-4.17.3)
|
|
|
|
### Changed
|
|
- Ignore VCPUOP_set_singleshot_timer's VCPU_SSHOTTMR_future flag. The only
|
|
known user doesn't use it properly, leading to in-guest breakage.
|
|
|
|
### Added
|
|
- On x86, support for enforcing system-wide operation in Data Operand
|
|
Independent Timing Mode.
|
|
- On x86, introduce a new x2APIC driver that uses Cluster Logical addressing
|
|
mode for IPIs and Physical addressing mode for external interrupts.
|
|
|
|
## [4.17.0](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=RELEASE-4.17.0) - 2022-12-12
|
|
|
|
### Changed
|
|
- On x86 "vga=current" can now be used together with GrUB2's gfxpayload setting. Note that
|
|
this requires use of "multiboot2" (and "module2") as the GrUB commands loading Xen.
|
|
- The "gnttab" option now has a new command line sub-option for disabling the
|
|
GNTTABOP_transfer functionality.
|
|
- The x86 MCE command line option info is now updated.
|
|
|
|
### Added / support upgraded
|
|
- Out-of-tree builds for the hypervisor now supported.
|
|
- __ro_after_init support, for marking data as immutable after boot.
|
|
- The project has officially adopted 4 directives and 24 rules of MISRA-C,
|
|
added MISRA-C checker build integration, and defined how to document
|
|
deviations.
|
|
- IOMMU superpage support on x86, affecting PV guests as well as HVM/PVH ones
|
|
when they don't share page tables with the CPU (HAP / EPT / NPT).
|
|
- Support for VIRT_SSBD and MSR_SPEC_CTRL for HVM guests on AMD.
|
|
- Improved TSC, CPU, and APIC clock frequency calibration on x86.
|
|
- Support for Xen using x86 Control Flow Enforcement technology for its own
|
|
protection. Both Shadow Stacks (ROP protection) and Indirect Branch
|
|
Tracking (COP/JOP protection).
|
|
- Add mwait-idle support for SPR and ADL on x86.
|
|
- Extend security support for hosts to 12 TiB of memory on x86.
|
|
- Add command line option to set cpuid parameters for dom0 at boot time on x86.
|
|
- Improved static configuration options on Arm.
|
|
- cpupools can be specified at boot using device tree on Arm.
|
|
- It is possible to use PV drivers with dom0less guests, allowing statically
|
|
booted dom0less guests with PV devices.
|
|
- On Arm, p2m structures are now allocated out of a pool of memory set aside at
|
|
domain creation.
|
|
- Improved mitigations against Spectre-BHB on Arm.
|
|
- Support VirtIO-MMIO devices device-tree binding creation in toolstack on Arm.
|
|
- Allow setting the number of CPUs to activate at runtime from command line
|
|
option on Arm.
|
|
- Grant-table support on Arm was improved and hardened by implementing
|
|
"simplified M2P-like approach for the xenheap pages"
|
|
- Add Renesas R-Car Gen4 IPMMU-VMSA support on Arm.
|
|
- Add i.MX lpuart and i.MX8QM support on Arm.
|
|
- Improved toolstack build system.
|
|
- Add Xue - console over USB 3 Debug Capability.
|
|
- gitlab-ci automation: Fixes and improvements together with new tests.
|
|
|
|
### Removed / support downgraded
|
|
- dropped support for the (x86-only) "vesa-mtrr" and "vesa-remap" command line options
|
|
|
|
## [4.16.0](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=RELEASE-4.16.0) - 2021-12-02
|
|
|
|
### Removed
|
|
- XENSTORED_ROOTDIR environment variable from configuartion files and
|
|
initscripts, due to being unused.
|
|
|
|
### Changed
|
|
- Quarantining of passed-through PCI devices no longer defaults to directing I/O to a scratch
|
|
page, matching original post-XSA-302 behavior (albeit the change was also backported, first
|
|
appearing in 4.12.2 and 4.11.4). Prior (4.13...4.15-like) behavior can be arranged for
|
|
either by enabling the IOMMU_QUARANTINE_SCRATCH_PAGE setting at build (configuration) time
|
|
or by passing "iommu=quarantine=scratch-page" on the hypervisor command line.
|
|
- pv-grub stubdoms will no longer be built per default. In order to be able to use pv-grub
|
|
configure needs to be called with "--enable-pv-grub" as parameter.
|
|
- qemu-traditional based device models (both, qemu-traditional and ioemu-stubdom) will
|
|
no longer be built per default. In order to be able to use those, configure needs to
|
|
be called with "--enable-qemu-traditional" as parameter.
|
|
- Fixes for credit2 scheduler stability in corner case conditions.
|
|
- Ongoing improvements in the hypervisor build system.
|
|
- vtpmmgr miscellaneous fixes in preparation for TPM 2.0 support.
|
|
- 32bit PV guests only supported in shim mode.
|
|
- Improved PVH dom0 debug key handling.
|
|
- Fix booting on some Intel systems without a PIT (i8254).
|
|
- Cleanup of the xenstore library interface.
|
|
- Fix truncation of return value from xencall2 by introducing a new helper
|
|
that returns a long instead.
|
|
- Fix system register accesses on Arm to use the proper 32/64bit access size.
|
|
- Various fixes for Arm OP-TEE mediator.
|
|
- Switch to domheap for Xen page tables.
|
|
|
|
### Added
|
|
- 32bit Arm builds to the gitlab-ci automated tests.
|
|
- x86 full system tests to the gitlab-ci automated tests.
|
|
- Arm limited vPMU support for guests.
|
|
- Static physical memory allocation for dom0less on arm64.
|
|
- dom0less EFI support on arm64.
|
|
- GICD_ICPENDR register handling in vGIC emulation to support Zephyr OS.
|
|
- CPU feature leveling on arm64 platform with heterogeneous cores.
|
|
- Report unpopulated memory regions safe to use for external mappings, Arm and
|
|
device tree only.
|
|
- Support of generic DT IOMMU bindings for Arm SMMU v2.
|
|
- Limit grant table version on a per-domain basis.
|
|
|
|
## [4.15.0](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=RELEASE-4.15.0) - 2021-04-08
|
|
|
|
### Added / support upgraded
|
|
- ARM IOREQ servers (device emulation etc.) (Tech Preview)
|
|
- Renesas IPMMU-VMSA (Supported, not security supported; was Tech Preview)
|
|
- ARM SMMUv3 (Tech Preview)
|
|
- Switched MSR accesses to deny by default policy.
|
|
- Intel Processor Trace support (Tech Preview)
|
|
- Named PCI devices for xl/libxl
|
|
- Improved documentation for xl PCI configuration format
|
|
- Support for zstd-compressed dom0 (x86) and domU kernels
|
|
- EFI: Enable booting unified hypervisor/kernel/initrd/DT images
|
|
- Reduce ACPI verbosity by default
|
|
- Add ucode=allow-same option to test late microcode loading path
|
|
- Library improvements from NetBSD ports upstreamed
|
|
- CI loop: Add Alpine Linux, Ubuntu Focal targets; drop CentOS 6
|
|
- CI loop: Add qemu-based dom0 / domU test for ARM
|
|
- CI loop: Add dom0less aarch64 smoke test
|
|
- x86: Allow domains to use AVX-VNNI instructions
|
|
- Factored out HVM-specific shadow code, improving code clarity and reducing the size of PV-only hypervisor builds
|
|
- Added XEN_SCRIPT_DIR configuration option to specify location for Xen scripts, rather than hard-coding /etc/xen/scripts
|
|
- xennet: Documented a way for the backend (or toolstack) to specify MTU to the frontend
|
|
- xenstore can now be live-updated on a running system. (Tech preview)
|
|
- Some additional affordances in various xl subcommands.
|
|
- Added workarounds for the following ARM errata: Cortex A53 #843419, Cortex A55 #1530923, Cortex A72 #853709, Cortex A73 #858921, Cortex A76 #1286807, Neoverse-N1 #1165522
|
|
- On detecting a host crash, some debug key handlers can automatically triggered to aid in debugging
|
|
- Increase the maximum number of guests which can share a single IRQ from 7 to 16, and make this configurable with irq-max-guests
|
|
|
|
### Removed / support downgraded
|
|
|
|
- qemu-xen-traditional as host process device model, now "No security
|
|
support, not recommended". (Use as stub domain device model is still
|
|
supported - see SUPPORT.md.)
|
|
|
|
## [4.14.0](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=RELEASE-4.14.0) - 2020-07-23
|
|
|
|
### Added
|
|
- This file and MAINTAINERS entry.
|
|
- Use x2APIC mode whenever available, regardless of interrupt remapping
|
|
support.
|
|
- Performance improvements to guest assisted TLB flushes, either when using
|
|
the Xen hypercall interface or the viridian one.
|
|
- Assorted pvshim performance and scalability improvements plus some bug
|
|
fixes.
|
|
- Hypervisor framework to ease porting Xen to run on hypervisors.
|
|
- Initial support to run on Hyper-V.
|
|
- Initial hypervisor file system (hypfs) support.
|
|
- libxl support for running qemu-xen device model in a linux stubdomain.
|
|
- New 'domid_policy', allowing domain-ids to be randomly chosen.
|
|
- Option to preserve domain-id across migrate or save+restore.
|
|
- Support in kdd for initial KD protocol handshake for Win 7, 8 and 10 (64 bit).
|
|
- Tech preview support for Control-flow Execution Technology, with Xen using
|
|
Supervisor Shadow Stacks for its own protection.
|
|
|
|
### Changed
|
|
- The CPUID data seen by a guest on boot is now moved in the migration
|
|
stream. A guest migrating between non-identical hardware will now no
|
|
longer observe details such as Family/Model/Stepping, Cache, etc changing.
|
|
An administrator still needs to take care to ensure the features visible to
|
|
the guest at boot are compatible with anywhere it might migrate.
|
|
|
|
## [4.13.0](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=RELEASE-4.13.0) - 2019-12-17
|
|
|
|
> Pointer to release from which CHANGELOG tracking starts
|