[PATCH v1 0/5] x86/cpu: Refactor identify_cpu()

[Ihor Solodrai]

This series refactors identify_cpu() machinery on x86 and then
implements a fix for a bug when cpu capabilities are temporarily
cleared within an interruptable window. For more details and
discussion see the relevant bug report [1].

Suggested-by: Borislav Petkov <bp@xxxxxxxxx>
Signed-off-by: Ihor Solodrai <ihor.solodrai@xxxxxxxxx>

[1] https://lore.kernel.org/bpf/20260610175651.647515-1-ihor.solodrai@xxxxxxxxx/

Ihor Solodrai (5):
  x86/cpu: Factor init_cpu_info() out of identify_cpu()
  x86/cpu: Inline generic_identify() into identify_cpu()
  x86/cpu: Introduce identify_cpu_32() helper
  x86/cpu: Set X86_BUG_ESPFIX in identify_cpu_32()
  x86/cpu: Don't reset boot CPU cpuinfo in identify_cpu()

 arch/x86/kernel/cpu/common.c | 114 +++++++++++++++++++----------------
 1 file changed, 61 insertions(+), 53 deletions(-)

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2.54.0