Messages in this thread Patch in this message | | | From | Luwei Kang <> | Subject | [PATCH v5 06/11] KVM: x86: Add Intel processor trace context for each vcpu | Date | Sun, 4 Mar 2018 20:07:16 +0800 |
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From: Chao Peng <chao.p.peng@linux.intel.com>
Add a data structure to save Intel Processor Trace context. It mainly include the value of Intel PT host/guest MSRs and guest CPUID information.
Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com> Signed-off-by: Luwei Kang <luwei.kang@intel.com> --- arch/x86/kvm/vmx.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 7a0e48c..3d0de12 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -589,6 +589,23 @@ static inline int pi_test_sn(struct pi_desc *pi_desc) (unsigned long *)&pi_desc->control); } +struct pt_ctx { + u64 ctl; + u64 status; + u64 output_base; + u64 output_mask; + u64 cr3_match; + u64 addrs[MSR_IA32_RTIT_ADDR_COUNT]; +}; + +struct pt_desc { + u64 ctl_bitmask; + u32 range_cnt; + u32 caps[PT_CPUID_REGS_NUM * PT_CPUID_LEAVES]; + struct pt_ctx host; + struct pt_ctx guest; +}; + struct vcpu_vmx { struct kvm_vcpu vcpu; unsigned long host_rsp; @@ -685,6 +702,8 @@ struct vcpu_vmx { */ u64 msr_ia32_feature_control; u64 msr_ia32_feature_control_valid_bits; + + struct pt_desc pt_desc; }; enum segment_cache_field { -- 1.8.3.1
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