linux-kernel - [GIT PULL] x86/misc for 6.19-rc1

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Message-Id: <20251201225420.728817-1-dave.hansen@linux.intel.com>
Date: Mon,  1 Dec 2025 14:54:20 -0800
From: Dave Hansen <dave.hansen@...ux.intel.com>
To: torvalds@...ux-foundation.org
Cc: x86@...nel.org,
	linux-kernel@...r.kernel.org,
	Dave Hansen <dave.hansen@...ux.intel.com>
Subject: [GIT PULL] x86/misc for 6.19-rc1

Hi Linus,

Please pull some x86/misc changes for 6.19-rc1. The most significant
are some changes to ensure that symbols exported for KVM are used only
by KVM modules themselves, along with some related cleanups.

In true x86/misc fashion, the other patch is completely unrelated and
just enhances an existing pr_warn() to make it clear to users how they
have tainted their kernel when something is mucking with MSRs.

--

The following changes since commit 6146a0f1dfae5d37442a9ddcba012add260bceb0:

  Linux 6.18-rc4 (2025-11-02 11:28:02 -0800)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tags/x86_misc_for_6.19-rc1

for you to fetch changes up to 6276c67f2bc4aeaf350a7cf889c33c38b3330ea9:

  x86: Restrict KVM-induced symbol exports to KVM modules where obvious/possible (2025-11-12 15:29:38 -0800)

----------------------------------------------------------------
 * Make MSR-induced taint easier for users to track down
 * Restrict KVM-specific exports to KVM itself

----------------------------------------------------------------
Marc Herbert (1):
      x86/msr: Add CPU_OUT_OF_SPEC taint name to "unrecognized" pr_warn(msg)

Sean Christopherson (4):
      x86/bugs: Drop unnecessary export of "x86_spec_ctrl_base"
      x86/mtrr: Drop unnecessary export of "mtrr_state"
      x86/mm: Drop unnecessary export of "ptdump_walk_pgd_level_debugfs"
      x86: Restrict KVM-induced symbol exports to KVM modules where obvious/possible

 arch/x86/entry/entry.S             |  7 ++--
 arch/x86/entry/entry_64.S          |  3 +-
 arch/x86/entry/entry_64_fred.S     |  3 +-
 arch/x86/events/amd/core.c         |  5 +--
 arch/x86/events/core.c             |  7 ++--
 arch/x86/events/intel/lbr.c        |  3 +-
 arch/x86/events/intel/pt.c         |  7 ++--
 arch/x86/include/asm/kvm_types.h   |  5 +++
 arch/x86/kernel/apic/apic.c        |  3 +-
 arch/x86/kernel/apic/apic_common.c |  3 +-
 arch/x86/kernel/cpu/amd.c          |  4 +--
 arch/x86/kernel/cpu/bugs.c         | 18 +++++-----
 arch/x86/kernel/cpu/bus_lock.c     |  3 +-
 arch/x86/kernel/cpu/common.c       |  7 ++--
 arch/x86/kernel/cpu/mtrr/generic.c |  1 -
 arch/x86/kernel/cpu/sgx/main.c     |  3 +-
 arch/x86/kernel/cpu/sgx/virt.c     |  5 +--
 arch/x86/kernel/e820.c             |  3 +-
 arch/x86/kernel/fpu/core.c         | 21 ++++++------
 arch/x86/kernel/fpu/xstate.c       |  7 ++--
 arch/x86/kernel/hw_breakpoint.c    |  3 +-
 arch/x86/kernel/irq.c              |  3 +-
 arch/x86/kernel/kvm.c              |  5 +--
 arch/x86/kernel/msr.c              |  2 +-
 arch/x86/kernel/nmi.c              |  5 ++-
 arch/x86/kernel/process_64.c       |  5 ++-
 arch/x86/kernel/reboot.c           |  5 +--
 arch/x86/kernel/tsc.c              |  1 +
 arch/x86/lib/cache-smp.c           |  9 ++---
 arch/x86/lib/msr.c                 |  5 +--
 arch/x86/mm/dump_pagetables.c      |  1 -
 arch/x86/mm/pat/memtype.c          |  3 +-
 arch/x86/mm/tlb.c                  |  5 +--
 arch/x86/virt/vmx/tdx/tdx.c        | 69 +++++++++++++++++++-------------------
 include/linux/kvm_types.h          | 14 ++++++++
 35 files changed, 145 insertions(+), 108 deletions(-)