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From: Sean Christopherson <seanjc@google.com>
To: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: kvm@vger.kernel.org
Subject: [RFC PATCH v6 17/36] KVM: nVMX: Support TSC scaling with enlightened VMCS
Date: Wed, 24 Aug 2022 03:01:19 +0000	[thread overview]
Message-ID: <20220824030138.3524159-18-seanjc@google.com> (raw)
In-Reply-To: <20220824030138.3524159-1-seanjc@google.com>

From: Vitaly Kuznetsov <vkuznets@redhat.com>

Enlightened VMCS v1 got updated and now includes the required fields for
TSC scaling, enable TSC scaling for both KVM-on-HyperV and HyperV-on-KVM
simply by dropping the relevant fields from the unsupported controls.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
[sean: split to separate patch (from PERF_GLOBAL_CTRL)]
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
 arch/x86/kvm/vmx/evmcs.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/x86/kvm/vmx/evmcs.h b/arch/x86/kvm/vmx/evmcs.h
index 35b326386c50..a2e21bdd17bb 100644
--- a/arch/x86/kvm/vmx/evmcs.h
+++ b/arch/x86/kvm/vmx/evmcs.h
@@ -38,8 +38,6 @@ DECLARE_STATIC_KEY_FALSE(enable_evmcs);
  *	EPTP_LIST_ADDRESS               = 0x00002024,
  *	VMREAD_BITMAP                   = 0x00002026,
  *	VMWRITE_BITMAP                  = 0x00002028,
- *
- *	TSC_MULTIPLIER                  = 0x00002032,
  *	PLE_GAP                         = 0x00004020,
  *	PLE_WINDOW                      = 0x00004022,
  *	VMX_PREEMPTION_TIMER_VALUE      = 0x0000482E,
@@ -57,7 +55,6 @@ DECLARE_STATIC_KEY_FALSE(enable_evmcs);
 	 SECONDARY_EXEC_ENABLE_PML |					\
 	 SECONDARY_EXEC_ENABLE_VMFUNC |					\
 	 SECONDARY_EXEC_SHADOW_VMCS |					\
-	 SECONDARY_EXEC_TSC_SCALING |					\
 	 SECONDARY_EXEC_PAUSE_LOOP_EXITING)
 #define EVMCS1_UNSUPPORTED_VMEXIT_CTRL					\
 	(VM_EXIT_SAVE_VMX_PREEMPTION_TIMER)
-- 
2.37.1.595.g718a3a8f04-goog


  parent reply	other threads:[~2022-08-24  3:04 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-24  3:01 [RFC PATCH v6 00/36] KVM: x86: eVMCS rework Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 01/36] x86/hyperv: Fix 'struct hv_enlightened_vmcs' definition Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 02/36] x86/hyperv: Update " Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 03/36] KVM: x86: Zero out entire Hyper-V CPUID cache before processing entries Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 04/36] KVM: x86: Check for existing Hyper-V vCPU in kvm_hv_vcpu_init() Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 05/36] KVM: x86: Report error when setting CPUID if Hyper-V allocation fails Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 06/36] KVM: nVMX: Treat eVMCS as enabled for guest iff Hyper-V is also enabled Sean Christopherson
2022-08-25 10:21   ` Vitaly Kuznetsov
2022-08-25 14:48     ` Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 07/36] KVM: nVMX: Refactor unsupported eVMCS controls logic to use 2-d array Sean Christopherson
2022-08-25 10:24   ` Vitaly Kuznetsov
2022-08-24  3:01 ` [RFC PATCH v6 08/36] KVM: nVMX: Use CC() macro to handle eVMCS unsupported controls checks Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 09/36] KVM: nVMX: Enforce unsupported eVMCS in VMX MSRs for host accesses Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 10/36] KVM: VMX: Define VMCS-to-EVMCS conversion for the new fields Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 11/36] KVM: nVMX: Support several new fields in eVMCSv1 Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 12/36] KVM: x86: hyper-v: Cache HYPERV_CPUID_NESTED_FEATURES CPUID leaf Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 13/36] KVM: selftests: Add ENCLS_EXITING_BITMAP{,HIGH} VMCS fields Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 14/36] KVM: selftests: Switch to updated eVMCSv1 definition Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 15/36] KVM: nVMX: WARN once and fail VM-Enter if eVMCS sees VMFUNC[63:32] != 0 Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 16/36] KVM: nVMX: Support PERF_GLOBAL_CTRL with enlightened VMCS Sean Christopherson
2022-08-24  3:01 ` Sean Christopherson [this message]
2022-08-24  3:01 ` [RFC PATCH v6 18/36] KVM: selftests: Enable TSC scaling in evmcs selftest Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 19/36] KVM: VMX: Get rid of eVMCS specific VMX controls sanitization Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 20/36] KVM: nVMX: Don't propagate vmcs12's PERF_GLOBAL_CTRL settings to vmcs02 Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 21/36] KVM: nVMX: Always emulate PERF_GLOBAL_CTRL VM-Entry/VM-Exit controls Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 22/36] KVM: VMX: Check VM_ENTRY_IA32E_MODE in setup_vmcs_config() Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 23/36] KVM: VMX: Check CPU_BASED_{INTR,NMI}_WINDOW_EXITING " Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 24/36] KVM: VMX: Tweak the special handling of SECONDARY_EXEC_ENCLS_EXITING " Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 25/36] KVM: VMX: Don't toggle VM_ENTRY_IA32E_MODE for 32-bit kernels/KVM Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 26/36] KVM: VMX: Extend VMX controls macro shenanigans Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 27/36] KVM: VMX: Move CPU_BASED_CR8_{LOAD,STORE}_EXITING filtering out of setup_vmcs_config() Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 28/36] KVM: VMX: Add missing VMEXIT controls to vmcs_config Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 29/36] KVM: VMX: Add missing CPU based VM execution " Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 30/36] KVM: VMX: Adjust CR3/INVPLG interception for EPT=y at runtime, not setup Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 31/36] KVM: x86: VMX: Replace some Intel model numbers with mnemonics Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 32/36] KVM: VMX: Move LOAD_IA32_PERF_GLOBAL_CTRL errata handling out of setup_vmcs_config() Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 33/36] KVM: nVMX: Always set required-1 bits of pinbased_ctls to PIN_BASED_ALWAYSON_WITHOUT_TRUE_MSR Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 34/36] KVM: nVMX: Use sanitized allowed-1 bits for VMX control MSRs Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 35/36] KVM: VMX: Cache MSR_IA32_VMX_MISC in vmcs_config Sean Christopherson
2022-08-24  3:01 ` [RFC PATCH v6 36/36] KVM: nVMX: Use cached host MSR_IA32_VMX_MISC value for setting up nested MSR Sean Christopherson
2022-08-25 18:08 ` [RFC PATCH v6 00/36] KVM: x86: eVMCS rework Vitaly Kuznetsov
2022-08-25 18:29   ` Sean Christopherson
2022-08-26 17:19     ` Vitaly Kuznetsov
2022-08-27 14:03       ` Vitaly Kuznetsov
2022-08-29 15:54         ` Sean Christopherson

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