From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luwei Kang Subject: [PATCH v7 08/13] KVM: x86: Add Intel processor trace context for each vcpu Date: Thu, 3 May 2018 20:08:38 +0800 Message-ID: <1525349323-9938-9-git-send-email-luwei.kang@intel.com> References: <1525349323-9938-1-git-send-email-luwei.kang@intel.com> Cc: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, x86@kernel.org, pbonzini@redhat.com, rkrcmar@redhat.com, linux-kernel@vger.kernel.org, joro@8bytes.org, peterz@infradead.org, chao.p.peng@linux.intel.com, Luwei Kang To: kvm@vger.kernel.org Return-path: In-Reply-To: <1525349323-9938-1-git-send-email-luwei.kang@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org From: Chao Peng 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 Signed-off-by: Luwei Kang --- 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 27cf417..9a5c26d 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -597,6 +597,23 @@ 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; @@ -693,6 +710,8 @@ 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