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| author | Paolo Bonzini <pbonzini@redhat.com> | 2024-01-08 16:10:04 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-01-08 16:10:04 +0300 |
| commit | 33d0403fdad8f4f6a1ccf552bdc31a0170f665b8 (patch) | |
| tree | b1ef4af6d024ed17c0e8b8fab932ea76e116eed7 /arch/x86/kvm/Kconfig | |
| parent | 0afdfd85e33afdbda4cdd219c22ee5bf95b005f4 (diff) | |
| parent | 15223c4f973a6120665ece9ce1ad17aec0be0e6c (diff) | |
| download | linux-33d0403fdad8f4f6a1ccf552bdc31a0170f665b8.tar.xz | |
Merge tag 'kvm-x86-misc-6.8' of https://github.com/kvm-x86/linux into HEAD
KVM x86 misc changes for 6.8:
- Turn off KVM_WERROR by default for all configs so that it's not
inadvertantly enabled by non-KVM developers, which can be problematic for
subsystems that require no regressions for W=1 builds.
- Advertise all of the host-supported CPUID bits that enumerate IA32_SPEC_CTRL
"features".
- Don't force a masterclock update when a vCPU synchronizes to the current TSC
generation, as updating the masterclock can cause kvmclock's time to "jump"
unexpectedly, e.g. when userspace hotplugs a pre-created vCPU.
- Use RIP-relative address to read kvm_rebooting in the VM-Enter fault paths,
partly as a super minor optimization, but mostly to make KVM play nice with
position independent executable builds.
Diffstat (limited to 'arch/x86/kvm/Kconfig')
| -rw-r--r-- | arch/x86/kvm/Kconfig | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig index b9d35b6b19f7..87e3da7b0439 100644 --- a/arch/x86/kvm/Kconfig +++ b/arch/x86/kvm/Kconfig @@ -62,13 +62,13 @@ config KVM config KVM_WERROR bool "Compile KVM with -Werror" - # KASAN may cause the build to fail due to larger frames - default y if X86_64 && !KASAN - # We use the dependency on !COMPILE_TEST to not be enabled - # blindly in allmodconfig or allyesconfig configurations - depends on KVM - depends on (X86_64 && !KASAN) || !COMPILE_TEST - depends on EXPERT + # Disallow KVM's -Werror if KASAN is enabled, e.g. to guard against + # randomized configs from selecting KVM_WERROR=y, which doesn't play + # nice with KASAN. KASAN builds generates warnings for the default + # FRAME_WARN, i.e. KVM_WERROR=y with KASAN=y requires special tuning. + # Building KVM with -Werror and KASAN is still doable via enabling + # the kernel-wide WERROR=y. + depends on KVM && EXPERT && !KASAN help Add -Werror to the build flags for KVM. |