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3c9de67dd3
- Fix CPU topology related regression that limited
Xen PV guests to a single CPU
- Fix ancient e820__register_nosave_regions() bugs that
were causing problems with kexec's artificial memory
maps
- Fix an S4 hibernation crash caused by two missing ENDBR's that
were mistakenly removed in a recent commit
- Fix a resctrl serialization bug
- Fix early_printk documentation and comments
- Fix RSB bugs, combined with preparatory updates to better
match the code to vendor recommendations.
- Add RSB mitigation document
- Fix/update documentation
- Fix the erratum_1386_microcode[] table to be NULL terminated
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2025-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc x86 fixes from Ingo Molnar:
- Fix CPU topology related regression that limited Xen PV guests to a
single CPU
- Fix ancient e820__register_nosave_regions() bugs that were causing
problems with kexec's artificial memory maps
- Fix an S4 hibernation crash caused by two missing ENDBR's that were
mistakenly removed in a recent commit
- Fix a resctrl serialization bug
- Fix early_printk documentation and comments
- Fix RSB bugs, combined with preparatory updates to better match the
code to vendor recommendations.
- Add RSB mitigation document
- Fix/update documentation
- Fix the erratum_1386_microcode[] table to be NULL terminated
* tag 'x86-urgent-2025-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/ibt: Fix hibernate
x86/cpu: Avoid running off the end of an AMD erratum table
Documentation/x86: Zap the subsection letters
Documentation/x86: Update the naming of CPU features for /proc/cpuinfo
x86/bugs: Add RSB mitigation document
x86/bugs: Don't fill RSB on context switch with eIBRS
x86/bugs: Don't fill RSB on VMEXIT with eIBRS+retpoline
x86/bugs: Fix RSB clearing in indirect_branch_prediction_barrier()
x86/bugs: Use SBPB in write_ibpb() if applicable
x86/bugs: Rename entry_ibpb() to write_ibpb()
x86/early_printk: Use 'mmio32' for consistency, fix comments
x86/resctrl: Fix rdtgroup_mkdir()'s unlocked use of kernfs_node::name
x86/e820: Fix handling of subpage regions when calculating nosave ranges in e820__register_nosave_regions()
x86/acpi: Don't limit CPUs to 1 for Xen PV guests due to disabled ACPI
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