[GIT PULL] x86 fixes

[Ingo Molnar]

Linus,

Please pull the latest x86/urgent Git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-urgent-2026-09-20

for you to fetch changes up to 63edf5a009ae366369a1b484cd9ae4ee7c51946c:

x86 fixes:

 - Reject the loading of a potentially problematic microcode version
   on Intel Granite Rapids systems (Chang S. Bae)

 - On FRED, reconstruct the proper #GP context for rejected INT
   instructions, to fix a signal ABI regression (Matthew Schwartz)

 - Add a test for this signal ABI regression the x86
   self-test suite (Matthew Schwartz)

 - Don't emit the new and not yet properly supported EGPR instructions
   (%r16-%r31) on CONFIG_X86_NATIVE_CPU=y builds (Chang S. Bae)

 Thanks,

	Ingo

------------------>
Chang S. Bae (2):
      x86/microcode/intel: Reject problematic loading on Granite Rapids systems
      x86/build/64: Prevent native builds from generating EGPR use

Matthew Schwartz (2):
      x86/fred: Reconstruct the #GP context for rejected INT instructions
      selftests/x86: Check signal state for rejected software interrupts


 arch/x86/Kconfig.cpu                     |  11 ++
 arch/x86/Makefile                        |   5 +
 arch/x86/entry/entry_fred.c              |  11 +-
 arch/x86/kernel/cpu/microcode/intel.c    |  26 +++
 scripts/generate_rust_target.rs          |   5 +
 tools/testing/selftests/x86/Makefile     |   2 +-
 tools/testing/selftests/x86/int_signal.c | 311 +++++++++++++++++++++++++++++++
 7 files changed, 369 insertions(+), 2 deletions(-)
 create mode 100644 tools/testing/selftests/x86/int_signal.c