[PATCH RFC 10/10] KVM: x86: Enable CONTEXT_ANALYSIS with opt-outs
From: Marco Elver <elver@google.com>
Date: 2026-09-10 16:24:11
Also in:
kvm, lkml
Subsystem:
clang context analysis, kernel virtual machine for x86 (kvm/x86), the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Marco Elver, Sean Christopherson, Paolo Bonzini, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
Enable Clang context analysis (-Wthread-safety) for x86 KVM. Because virt/kvm/ objects are built directly into the x86 KVM module, this also enables checking for common KVM sources. Temporarily opt out sources that require more invasive annotations: mmu/mmu.c, mmu/tdp_mmu.c, i8259.c, and xen.c. No functional change intended. Signed-off-by: Marco Elver <elver@google.com> --- arch/x86/kvm/Makefile | 8 ++++++++ scripts/context-analysis-suppression.txt | 1 + 2 files changed, 9 insertions(+)
diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile
index 0474604ab8a1..a93b54b00ae2 100644
--- a/arch/x86/kvm/Makefile
+++ b/arch/x86/kvm/Makefile@@ -1,5 +1,13 @@ # SPDX-License-Identifier: GPL-2.0 +CONTEXT_ANALYSIS := y + +# Opt out x86 objects pending context annotations: +CONTEXT_ANALYSIS_mmu/mmu.o := n +CONTEXT_ANALYSIS_mmu/tdp_mmu.o := n +CONTEXT_ANALYSIS_i8259.o := n +CONTEXT_ANALYSIS_xen.o := n + ccflags-y += -I $(srctree)/arch/x86/kvm ccflags-$(CONFIG_KVM_WERROR) += -Werror
diff --git a/scripts/context-analysis-suppression.txt b/scripts/context-analysis-suppression.txt
index 1c51b6153f08..666c4ca54708 100644
--- a/scripts/context-analysis-suppression.txt
+++ b/scripts/context-analysis-suppression.txt@@ -17,6 +17,7 @@ src:*include/net/* src:*include/linux/bit_spinlock.h=emit src:*include/linux/cleanup.h=emit src:*include/linux/kref.h=emit +src:*include/linux/kvm_host.h=emit src:*include/linux/list*.h=emit src:*include/linux/local_lock*.h=emit src:*include/linux/lockdep.h=emit
--
2.55.0.1003.g10538fe699-goog