linux-kernel - [PATCH v2 10/28] KVM: selftests: Switch to updated eVMCSv1 definition

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Date:   Wed, 29 Jun 2022 17:06:07 +0200
From:   Vitaly Kuznetsov <vkuznets@...hat.com>
To:     kvm@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <seanjc@...gle.com>
Cc:     Anirudh Rayabharam <anrayabh@...ux.microsoft.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Maxim Levitsky <mlevitsk@...hat.com>,
        linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 10/28] KVM: selftests: Switch to updated eVMCSv1 definition

Update Enlightened VMCS definition in selftests from KVM and switch to
using EVMCS_REVISION 2 which supports these new fields.

Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>
---
 .../selftests/kvm/include/x86_64/evmcs.h      | 47 +++++++++++++++++--
 1 file changed, 43 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/kvm/include/x86_64/evmcs.h b/tools/testing/selftests/kvm/include/x86_64/evmcs.h
index b6d6c73f68dc..ee95286159d1 100644
--- a/tools/testing/selftests/kvm/include/x86_64/evmcs.h
+++ b/tools/testing/selftests/kvm/include/x86_64/evmcs.h
@@ -17,7 +17,7 @@
 #define u64 uint64_t
 
 #define EVMCS_VERSION 1
-#define EVMCS_REVISION 1
+#define EVMCS_REVISION 2
 
 extern bool enable_evmcs;
 
@@ -204,14 +204,25 @@ struct hv_enlightened_vmcs {
 		u32 reserved:30;
 	} hv_enlightenments_control;
 	u32 hv_vp_id;
-
+	u32 padding32_2;
 	u64 hv_vm_id;
 	u64 partition_assist_page;
 	u64 padding64_4[4];
 	u64 guest_bndcfgs;
-	u64 padding64_5[7];
+	u64 guest_ia32_perf_global_ctrl;
+	u64 guest_ia32_s_cet;
+	u64 guest_ssp;
+	u64 guest_ia32_int_ssp_table_addr;
+	u64 guest_ia32_lbr_ctl;
+	u64 padding64_5[2];
 	u64 xss_exit_bitmap;
-	u64 padding64_6[7];
+	u64 host_ia32_perf_global_ctrl;
+	u64 encls_exiting_bitmap;
+	u64 tsc_multiplier;
+	u64 host_ia32_s_cet;
+	u64 host_ssp;
+	u64 host_ia32_int_ssp_table_addr;
+	u64 padding64_6;
 };
 
 #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE                     0
@@ -657,6 +668,18 @@ static inline int evmcs_vmread(uint64_t encoding, uint64_t *value)
 	case VIRTUAL_PROCESSOR_ID:
 		*value = current_evmcs->virtual_processor_id;
 		break;
+	case HOST_IA32_PERF_GLOBAL_CTRL:
+		*value = current_evmcs->host_ia32_perf_global_ctrl;
+		break;
+	case GUEST_IA32_PERF_GLOBAL_CTRL:
+		*value = current_evmcs->guest_ia32_perf_global_ctrl;
+		break;
+	case ENCLS_EXITING_BITMAP:
+		*value = current_evmcs->encls_exiting_bitmap;
+		break;
+	case TSC_MULTIPLIER:
+		*value = current_evmcs->tsc_multiplier;
+		break;
 	default: return 1;
 	}
 
@@ -1170,6 +1193,22 @@ static inline int evmcs_vmwrite(uint64_t encoding, uint64_t value)
 		current_evmcs->virtual_processor_id = value;
 		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT;
 		break;
+	case HOST_IA32_PERF_GLOBAL_CTRL:
+		current_evmcs->host_ia32_perf_global_ctrl = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case GUEST_IA32_PERF_GLOBAL_CTRL:
+		current_evmcs->guest_ia32_perf_global_ctrl = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1;
+		break;
+	case ENCLS_EXITING_BITMAP:
+		current_evmcs->encls_exiting_bitmap = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2;
+		break;
+	case TSC_MULTIPLIER:
+		current_evmcs->tsc_multiplier = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2;
+		break;
 	default: return 1;
 	}
 
-- 
2.35.3