diff options
| author | Sean Christopherson <seanjc@google.com> | 2024-02-23 12:42:33 -0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2024-04-09 10:21:44 -0700 |
| commit | 27ca867042affef7eba692d3bac7b51ee85e36ad (patch) | |
| tree | c069f3725758859d0de34af1c5658170f99198b7 /arch | |
| parent | 4367a75887ec8d68932cd84ea9cffe24d7a55fa0 (diff) | |
| download | linux-stable-27ca867042affef7eba692d3bac7b51ee85e36ad.tar.gz linux-stable-27ca867042affef7eba692d3bac7b51ee85e36ad.tar.bz2 linux-stable-27ca867042affef7eba692d3bac7b51ee85e36ad.zip | |
KVM: x86: Stop compiling vmenter.S with OBJECT_FILES_NON_STANDARD
Stop compiling vmenter.S with OBJECT_FILES_NON_STANDARD to skip objtool's
stack validation now that __svm_vcpu_run() and __svm_sev_es_vcpu_run()
create stack frames (though the former's effectiveness is dubious).
Note, due to a quirk in how OBJECT_FILES_NON_STANDARD was handled by the
build system prior to commit bf48d9b756b9 ("kbuild: change tool coverage
variables to take the path relative to $(obj)"), vmx/vmenter.S got lumped
in with svm/vmenter.S. __vmx_vcpu_run() already plays nice with frame
pointers, i.e. it was collateral damage when commit 7f4b5cde2409 ("kvm:
Disable objtool frame pointer checking for vmenter.S") added the
OBJECT_FILES_NON_STANDARD hack-a-fix.
Link: https://lore.kernel.org/all/20240217055504.2059803-1-masahiroy@kernel.org
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/r/20240223204233.3337324-9-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/Makefile | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile index a88bb14266b6..addc44fc7187 100644 --- a/arch/x86/kvm/Makefile +++ b/arch/x86/kvm/Makefile @@ -3,11 +3,6 @@ ccflags-y += -I $(srctree)/arch/x86/kvm ccflags-$(CONFIG_KVM_WERROR) += -Werror -ifeq ($(CONFIG_FRAME_POINTER),y) -OBJECT_FILES_NON_STANDARD_vmx/vmenter.o := y -OBJECT_FILES_NON_STANDARD_svm/vmenter.o := y -endif - include $(srctree)/virt/kvm/Makefile.kvm kvm-y += x86.o emulate.o i8259.o irq.o lapic.o \ |