The following patches are based on v3 from Tim Chen https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1582043.html
This patch set supports exposing MSR_IA32_SPEC_CTRL and MSR_IA32_PRED_CMD for user space. Thomas is steam blowing v3 :-).. but I didn't want to keep holding this much longer for the rebase to be complete in tip/x86/pti. Ashok Raj (4): x86/ibrs: Introduce native_rdmsrl, and native_wrmsrl x86/ibrs: Add new helper macros to save/restore MSR_IA32_SPEC_CTRL x86/ibrs: Add direct access support for MSR_IA32_SPEC_CTRL x86/feature: Detect the x86 feature Indirect Branch Prediction Barrier Paolo Bonzini (1): x86/svm: Direct access to MSR_IA32_SPEC_CTRL arch/x86/include/asm/cpufeatures.h | 1 + arch/x86/include/asm/msr-index.h | 3 +++ arch/x86/include/asm/spec_ctrl.h | 29 +++++++++++++++++++++- arch/x86/kernel/cpu/spec_ctrl.c | 19 ++++++++++++++ arch/x86/kvm/cpuid.c | 3 ++- arch/x86/kvm/svm.c | 51 ++++++++++++++++++++++++++++++++++++++ arch/x86/kvm/vmx.c | 51 ++++++++++++++++++++++++++++++++++++++ arch/x86/kvm/x86.c | 1 + 8 files changed, 156 insertions(+), 2 deletions(-) -- 2.7.4
