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| author | Paolo Bonzini <pbonzini@redhat.com> | 2024-10-06 03:59:22 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-10-06 03:59:22 -0400 |
| commit | c8d430db8eec7d4fd13a6bea27b7086a54eda6da (patch) | |
| tree | 3c9b35bc9372232183e745cc2a03995a8d053ff6 /Documentation/core-api/cpu_hotplug.rst | |
| parent | 2a5fe5a01668e831af1de3951718fbf88b9a9b9c (diff) | |
| parent | a1d402abf8e3ff1d821e88993fc5331784fac0da (diff) | |
Merge tag 'kvmarm-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 6.12, take #1
- Fix pKVM error path on init, making sure we do not change critical
system registers as we're about to fail
- Make sure that the host's vector length is at capped by a value
common to all CPUs
- Fix kvm_has_feat*() handling of "negative" features, as the current
code is pretty broken
- Promote Joey to the status of official reviewer, while James steps
down -- hopefully only temporarly
Diffstat (limited to 'Documentation/core-api/cpu_hotplug.rst')
| -rw-r--r-- | Documentation/core-api/cpu_hotplug.rst | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/Documentation/core-api/cpu_hotplug.rst b/Documentation/core-api/cpu_hotplug.rst index dcb0e379e5e8..a21dbf261be7 100644 --- a/Documentation/core-api/cpu_hotplug.rst +++ b/Documentation/core-api/cpu_hotplug.rst @@ -737,8 +737,9 @@ can process the event further. When changes to the CPUs in the system occur, the sysfs file /sys/devices/system/cpu/crash_hotplug contains '1' if the kernel -updates the kdump capture kernel list of CPUs itself (via elfcorehdr), -or '0' if userspace must update the kdump capture kernel list of CPUs. +updates the kdump capture kernel list of CPUs itself (via elfcorehdr and +other relevant kexec segment), or '0' if userspace must update the kdump +capture kernel list of CPUs. The availability depends on the CONFIG_HOTPLUG_CPU kernel configuration option. @@ -750,8 +751,9 @@ file can be used in a udev rule as follows: SUBSYSTEM=="cpu", ATTRS{crash_hotplug}=="1", GOTO="kdump_reload_end" For a CPU hot un/plug event, if the architecture supports kernel updates -of the elfcorehdr (which contains the list of CPUs), then the rule skips -the unload-then-reload of the kdump capture kernel. +of the elfcorehdr (which contains the list of CPUs) and other relevant +kexec segments, then the rule skips the unload-then-reload of the kdump +capture kernel. Kernel Inline Documentations Reference ====================================== |