[PATCH 7/9] KVM: x86: add Intel processor trace context for each vcpu
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From: Luwei Kang <hidden>
Date: 2017-10-17 01:57:06
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lkml
Subsystem:
kernel virtual machine for x86 (kvm/x86), the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Sean Christopherson, Paolo Bonzini, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
From: Chao Peng <redacted> Add a date structure to save Intel processor trace context. It mainly include all the MSR of Intel processor trace. Signed-off-by: Chao Peng <redacted> Signed-off-by: Luwei Kang <redacted> --- arch/x86/include/asm/msr-index.h | 1 + arch/x86/include/asm/vmx.h | 2 ++ arch/x86/kvm/vmx.c | 17 +++++++++++++++++ 3 files changed, 20 insertions(+)
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 57433e4..96124c8 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h@@ -135,6 +135,7 @@ #define MSR_IA32_RTIT_ADDR2_B 0x00000585 #define MSR_IA32_RTIT_ADDR3_A 0x00000586 #define MSR_IA32_RTIT_ADDR3_B 0x00000587 +#define MSR_IA32_RTIT_ADDR_COUNT 8 #define MSR_IA32_RTIT_CR3_MATCH 0x00000572 #define MSR_IA32_RTIT_OUTPUT_BASE 0x00000560 #define MSR_IA32_RTIT_OUTPUT_MASK 0x00000561
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index 80e3e22..6293803 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h@@ -240,6 +240,8 @@ enum vmcs_field { GUEST_PDPTR3_HIGH = 0x00002811, GUEST_BNDCFGS = 0x00002812, GUEST_BNDCFGS_HIGH = 0x00002813, + GUEST_IA32_RTIT_CTL = 0x00002814, + GUEST_IA32_RTIT_CTL_HIGH = 0x00002815, HOST_IA32_PAT = 0x00002c00, HOST_IA32_PAT_HIGH = 0x00002c01, HOST_IA32_EFER = 0x00002c02,
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 9d1939e..5e86b5d 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c@@ -566,6 +566,21 @@ 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 { + unsigned int addr_num; + struct pt_ctx host; + struct pt_ctx guest; +}; + struct vcpu_vmx { struct kvm_vcpu vcpu; unsigned long host_rsp;
@@ -655,6 +670,8 @@ struct vcpu_vmx { */ u64 msr_ia32_feature_control; u64 msr_ia32_feature_control_valid_bits; + + struct pt_desc pt_desc; }; enum segment_cache_field {
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1.8.3.1