From patchwork Wed Nov 8 18:29:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Li, Xin3" X-Patchwork-Id: 13450414 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 92189C4167D for ; Wed, 8 Nov 2023 19:00:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232946AbjKHTAi (ORCPT ); Wed, 8 Nov 2023 14:00:38 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56770 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232724AbjKHTAa (ORCPT ); Wed, 8 Nov 2023 14:00:30 -0500 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F06D0212D; Wed, 8 Nov 2023 11:00:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1699470025; x=1731006025; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=0wosoEajlgVEljBzAln/5/tYc2HmZ/1IYFDCYq6/OQ4=; b=RY9WRLbQJm4ItEazgHn2DA8474bwUtdE8UdDixmOfPGzfOlqI/smFCsj ql8SVEY7nCCW08X7m011oqU+AvVbj/H+yWwqLzOSW6i6nQs+NSsho3oxi ItKp6EZtjaDwC1MPNu9OkuGwnGoaA23A8hvfUU4dxaDcUtsomAlyJoNSh CRSrArbMW76mD21NFXRbw4vmNSr/M2QiqXuiccba91I37wGoFydV9vxXw 8VxdpDJRkQXSRqh1Y6Wdzof0+r9M+nkTHZjYEb6ec0JcXVfUu1GZ0sJxr abXJZYQ5zogFfGilNRnH6sfKU1s7PEkQDtZjs/m+lrwYsz53FiOdeCttd Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10888"; a="8486394" X-IronPort-AV: E=Sophos;i="6.03,287,1694761200"; d="scan'208";a="8486394" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Nov 2023 11:00:25 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.03,287,1694761200"; d="scan'208";a="10892491" Received: from unknown (HELO fred..) ([172.25.112.68]) by orviesa001.jf.intel.com with ESMTP; 08 Nov 2023 11:00:24 -0800 From: Xin Li To: kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: seanjc@google.com, pbonzini@redhat.com, corbet@lwn.net, kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, vkuznets@redhat.com, peterz@infradead.org, ravi.v.shankar@intel.com Subject: [PATCH v1 16/23] KVM: nVMX: Add FRED VMCS fields Date: Wed, 8 Nov 2023 10:29:56 -0800 Message-ID: <20231108183003.5981-17-xin3.li@intel.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231108183003.5981-1-xin3.li@intel.com> References: <20231108183003.5981-1-xin3.li@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Add FRED VMCS fields to nested VMX context management. Tested-by: Shan Kang Signed-off-by: Xin Li --- Documentation/virt/kvm/x86/nested-vmx.rst | 18 +++ arch/x86/include/asm/hyperv-tlfs.h | 18 +++ arch/x86/kvm/vmx/hyperv.c | 38 ++++++ arch/x86/kvm/vmx/nested.c | 154 ++++++++++++++++++++-- arch/x86/kvm/vmx/vmcs12.c | 18 +++ arch/x86/kvm/vmx/vmcs12.h | 36 +++++ arch/x86/kvm/vmx/vmcs_shadow_fields.h | 6 +- 7 files changed, 274 insertions(+), 14 deletions(-) diff --git a/Documentation/virt/kvm/x86/nested-vmx.rst b/Documentation/virt/kvm/x86/nested-vmx.rst index e64ef231f310..87fa9f3877ab 100644 --- a/Documentation/virt/kvm/x86/nested-vmx.rst +++ b/Documentation/virt/kvm/x86/nested-vmx.rst @@ -218,6 +218,24 @@ struct shadow_vmcs is ever changed. u16 host_gs_selector; u16 host_tr_selector; u64 secondary_vm_exit_controls; + u64 guest_ia32_fred_config; + u64 guest_ia32_fred_rsp1; + u64 guest_ia32_fred_rsp2; + u64 guest_ia32_fred_rsp3; + u64 guest_ia32_fred_stklvls; + u64 guest_ia32_fred_ssp1; + u64 guest_ia32_fred_ssp2; + u64 guest_ia32_fred_ssp3; + u64 host_ia32_fred_config; + u64 host_ia32_fred_rsp1; + u64 host_ia32_fred_rsp2; + u64 host_ia32_fred_rsp3; + u64 host_ia32_fred_stklvls; + u64 host_ia32_fred_ssp1; + u64 host_ia32_fred_ssp2; + u64 host_ia32_fred_ssp3; + u64 injected_event_data; + u64 original_event_data; }; diff --git a/arch/x86/include/asm/hyperv-tlfs.h b/arch/x86/include/asm/hyperv-tlfs.h index 299554708e37..269dbf73b63f 100644 --- a/arch/x86/include/asm/hyperv-tlfs.h +++ b/arch/x86/include/asm/hyperv-tlfs.h @@ -617,6 +617,24 @@ struct hv_enlightened_vmcs { u64 host_ia32_int_ssp_table_addr; u64 padding64_6; u64 secondary_vm_exit_controls; + u64 guest_ia32_fred_config; + u64 guest_ia32_fred_rsp1; + u64 guest_ia32_fred_rsp2; + u64 guest_ia32_fred_rsp3; + u64 guest_ia32_fred_stklvls; + u64 guest_ia32_fred_ssp1; + u64 guest_ia32_fred_ssp2; + u64 guest_ia32_fred_ssp3; + u64 host_ia32_fred_config; + u64 host_ia32_fred_rsp1; + u64 host_ia32_fred_rsp2; + u64 host_ia32_fred_rsp3; + u64 host_ia32_fred_stklvls; + u64 host_ia32_fred_ssp1; + u64 host_ia32_fred_ssp2; + u64 host_ia32_fred_ssp3; + u64 injected_event_data; + u64 original_event_data; } __packed; #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE 0 diff --git a/arch/x86/kvm/vmx/hyperv.c b/arch/x86/kvm/vmx/hyperv.c index b8cd53601a00..b12ef8fd76c9 100644 --- a/arch/x86/kvm/vmx/hyperv.c +++ b/arch/x86/kvm/vmx/hyperv.c @@ -243,6 +243,8 @@ const struct evmcs_field vmcs_field_to_evmcs_1[] = { HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2), EVMCS1_FIELD(TSC_MULTIPLIER, tsc_multiplier, HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2), + EVMCS1_FIELD(INJECTED_EVENT_DATA, injected_event_data, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT), /* * Not used by KVM: * @@ -262,11 +264,47 @@ const struct evmcs_field vmcs_field_to_evmcs_1[] = { * HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1), */ + /* FRED guest and host context */ + EVMCS1_FIELD(GUEST_IA32_FRED_CONFIG, guest_ia32_fred_config, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2), + EVMCS1_FIELD(GUEST_IA32_FRED_RSP1, guest_ia32_fred_rsp1, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2), + EVMCS1_FIELD(GUEST_IA32_FRED_RSP2, guest_ia32_fred_rsp2, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2), + EVMCS1_FIELD(GUEST_IA32_FRED_RSP3, guest_ia32_fred_rsp3, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2), + EVMCS1_FIELD(GUEST_IA32_FRED_STKLVLS, guest_ia32_fred_stklvls, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2), + EVMCS1_FIELD(GUEST_IA32_FRED_SSP1, guest_ia32_fred_ssp1, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2), + EVMCS1_FIELD(GUEST_IA32_FRED_SSP2, guest_ia32_fred_ssp2, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2), + EVMCS1_FIELD(GUEST_IA32_FRED_SSP3, guest_ia32_fred_ssp3, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2), + EVMCS1_FIELD(HOST_IA32_FRED_CONFIG, host_ia32_fred_config, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER), + EVMCS1_FIELD(HOST_IA32_FRED_RSP1, host_ia32_fred_rsp1, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER), + EVMCS1_FIELD(HOST_IA32_FRED_RSP2, host_ia32_fred_rsp2, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER), + EVMCS1_FIELD(HOST_IA32_FRED_RSP3, host_ia32_fred_rsp3, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER), + EVMCS1_FIELD(HOST_IA32_FRED_STKLVLS, host_ia32_fred_stklvls, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER), + EVMCS1_FIELD(HOST_IA32_FRED_SSP1, host_ia32_fred_ssp1, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER), + EVMCS1_FIELD(HOST_IA32_FRED_SSP2, host_ia32_fred_ssp2, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER), + EVMCS1_FIELD(HOST_IA32_FRED_SSP3, host_ia32_fred_ssp3, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER), + /* 64 bit read only */ EVMCS1_FIELD(GUEST_PHYSICAL_ADDRESS, guest_physical_address, HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE), EVMCS1_FIELD(EXIT_QUALIFICATION, exit_qualification, HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE), + EVMCS1_FIELD(ORIGINAL_EVENT_DATA, original_event_data, + HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE), /* * Not defined in KVM: * diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index d6341845df43..af616c4a3491 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -83,7 +83,18 @@ static void init_vmcs_shadow_fields(void) pr_err("Missing field from shadow_read_only_field %x\n", field + 1); + switch (field) { + case ORIGINAL_EVENT_DATA: + case ORIGINAL_EVENT_DATA_HIGH: + if (!cpu_feature_enabled(X86_FEATURE_FRED)) + continue; + break; + default: + break; + } + clear_bit(field, vmx_vmread_bitmap); + if (field & 1) #ifdef CONFIG_X86_64 continue; @@ -126,6 +137,11 @@ static void init_vmcs_shadow_fields(void) if (!cpu_has_vmx_apicv()) continue; break; + case INJECTED_EVENT_DATA: + case INJECTED_EVENT_DATA_HIGH: + if (!cpu_feature_enabled(X86_FEATURE_FRED)) + continue; + break; default: break; } @@ -650,6 +666,9 @@ static inline bool nested_vmx_prepare_msr_bitmap(struct kvm_vcpu *vcpu, nested_vmx_set_intercept_for_msr(vmx, msr_bitmap_l1, msr_bitmap_l0, MSR_KERNEL_GS_BASE, MSR_TYPE_RW); + + nested_vmx_set_intercept_for_msr(vmx, msr_bitmap_l1, msr_bitmap_l0, + MSR_IA32_FRED_RSP0, MSR_TYPE_RW); #endif nested_vmx_set_intercept_for_msr(vmx, msr_bitmap_l1, msr_bitmap_l0, MSR_IA32_SPEC_CTRL, MSR_TYPE_RW); @@ -1565,6 +1584,17 @@ static void copy_shadow_to_vmcs12(struct vcpu_vmx *vmx) for (i = 0; i < max_shadow_read_write_fields; i++) { field = shadow_read_write_fields[i]; + + switch (field.encoding) { + case INJECTED_EVENT_DATA: + case INJECTED_EVENT_DATA_HIGH: + if (!cpu_feature_enabled(X86_FEATURE_FRED)) + continue; + break; + default: + break; + } + val = __vmcs_readl(field.encoding); vmcs12_write_any(vmcs12, field.encoding, field.offset, val); } @@ -1599,6 +1629,19 @@ static void copy_vmcs12_to_shadow(struct vcpu_vmx *vmx) for (q = 0; q < ARRAY_SIZE(fields); q++) { for (i = 0; i < max_fields[q]; i++) { field = fields[q][i]; + + switch (field.encoding) { + case INJECTED_EVENT_DATA: + case INJECTED_EVENT_DATA_HIGH: + case ORIGINAL_EVENT_DATA: + case ORIGINAL_EVENT_DATA_HIGH: + if (!cpu_feature_enabled(X86_FEATURE_FRED)) + continue; + break; + default: + break; + } + val = vmcs12_read_any(vmcs12, field.encoding, field.offset); __vmcs_writel(field.encoding, val); @@ -1660,6 +1703,8 @@ static void copy_enlightened_to_vmcs12(struct vcpu_vmx *vmx, u32 hv_clean_fields evmcs->vm_entry_intr_info_field; vmcs12->vm_entry_exception_error_code = evmcs->vm_entry_exception_error_code; + vmcs12->injected_event_data = + evmcs->injected_event_data; vmcs12->vm_entry_instruction_len = evmcs->vm_entry_instruction_len; } @@ -1725,6 +1770,14 @@ static void copy_enlightened_to_vmcs12(struct vcpu_vmx *vmx, u32 hv_clean_fields vmcs12->guest_tr_base = evmcs->guest_tr_base; vmcs12->guest_gdtr_base = evmcs->guest_gdtr_base; vmcs12->guest_idtr_base = evmcs->guest_idtr_base; + vmcs12->guest_ia32_fred_config = evmcs->guest_ia32_fred_config; + vmcs12->guest_ia32_fred_rsp1 = evmcs->guest_ia32_fred_rsp1; + vmcs12->guest_ia32_fred_rsp2 = evmcs->guest_ia32_fred_rsp2; + vmcs12->guest_ia32_fred_rsp3 = evmcs->guest_ia32_fred_rsp3; + vmcs12->guest_ia32_fred_stklvls = evmcs->guest_ia32_fred_stklvls; + vmcs12->guest_ia32_fred_ssp1 = evmcs->guest_ia32_fred_ssp1; + vmcs12->guest_ia32_fred_ssp2 = evmcs->guest_ia32_fred_ssp2; + vmcs12->guest_ia32_fred_ssp3 = evmcs->guest_ia32_fred_ssp3; vmcs12->guest_es_limit = evmcs->guest_es_limit; vmcs12->guest_cs_limit = evmcs->guest_cs_limit; vmcs12->guest_ss_limit = evmcs->guest_ss_limit; @@ -1781,6 +1834,14 @@ static void copy_enlightened_to_vmcs12(struct vcpu_vmx *vmx, u32 hv_clean_fields vmcs12->host_tr_base = evmcs->host_tr_base; vmcs12->host_gdtr_base = evmcs->host_gdtr_base; vmcs12->host_idtr_base = evmcs->host_idtr_base; + vmcs12->host_ia32_fred_config = evmcs->host_ia32_fred_config; + vmcs12->host_ia32_fred_rsp1 = evmcs->host_ia32_fred_rsp1; + vmcs12->host_ia32_fred_rsp2 = evmcs->host_ia32_fred_rsp2; + vmcs12->host_ia32_fred_rsp3 = evmcs->host_ia32_fred_rsp3; + vmcs12->host_ia32_fred_stklvls = evmcs->host_ia32_fred_stklvls; + vmcs12->host_ia32_fred_ssp1 = evmcs->host_ia32_fred_ssp1; + vmcs12->host_ia32_fred_ssp2 = evmcs->host_ia32_fred_ssp2; + vmcs12->host_ia32_fred_ssp3 = evmcs->host_ia32_fred_ssp3; vmcs12->host_rsp = evmcs->host_rsp; } @@ -1840,6 +1901,7 @@ static void copy_enlightened_to_vmcs12(struct vcpu_vmx *vmx, u32 hv_clean_fields * vmcs12->vm_exit_intr_error_code = evmcs->vm_exit_intr_error_code; * vmcs12->idt_vectoring_info_field = evmcs->idt_vectoring_info_field; * vmcs12->idt_vectoring_error_code = evmcs->idt_vectoring_error_code; + * vmcs12->original_event_data = evmcs->original_event_data; * vmcs12->vm_exit_instruction_len = evmcs->vm_exit_instruction_len; * vmcs12->vmx_instruction_info = evmcs->vmx_instruction_info; * vmcs12->exit_qualification = evmcs->exit_qualification; @@ -1975,6 +2037,14 @@ static void copy_vmcs12_to_enlightened(struct vcpu_vmx *vmx) evmcs->guest_tr_base = vmcs12->guest_tr_base; evmcs->guest_gdtr_base = vmcs12->guest_gdtr_base; evmcs->guest_idtr_base = vmcs12->guest_idtr_base; + evmcs->guest_ia32_fred_config = vmcs12->guest_ia32_fred_config; + evmcs->guest_ia32_fred_rsp1 = vmcs12->guest_ia32_fred_rsp1; + evmcs->guest_ia32_fred_rsp2 = vmcs12->guest_ia32_fred_rsp2; + evmcs->guest_ia32_fred_rsp3 = vmcs12->guest_ia32_fred_rsp3; + evmcs->guest_ia32_fred_stklvls = vmcs12->guest_ia32_fred_stklvls; + evmcs->guest_ia32_fred_ssp1 = vmcs12->guest_ia32_fred_ssp1; + evmcs->guest_ia32_fred_ssp2 = vmcs12->guest_ia32_fred_ssp2; + evmcs->guest_ia32_fred_ssp3 = vmcs12->guest_ia32_fred_ssp3; evmcs->guest_ia32_pat = vmcs12->guest_ia32_pat; evmcs->guest_ia32_efer = vmcs12->guest_ia32_efer; @@ -2005,6 +2075,7 @@ static void copy_vmcs12_to_enlightened(struct vcpu_vmx *vmx) evmcs->vm_exit_intr_error_code = vmcs12->vm_exit_intr_error_code; evmcs->idt_vectoring_info_field = vmcs12->idt_vectoring_info_field; evmcs->idt_vectoring_error_code = vmcs12->idt_vectoring_error_code; + evmcs->original_event_data = vmcs12->original_event_data; evmcs->vm_exit_instruction_len = vmcs12->vm_exit_instruction_len; evmcs->vmx_instruction_info = vmcs12->vmx_instruction_info; @@ -2021,6 +2092,7 @@ static void copy_vmcs12_to_enlightened(struct vcpu_vmx *vmx) evmcs->vm_entry_intr_info_field = vmcs12->vm_entry_intr_info_field; evmcs->vm_entry_exception_error_code = vmcs12->vm_entry_exception_error_code; + evmcs->injected_event_data = vmcs12->injected_event_data; evmcs->vm_entry_instruction_len = vmcs12->vm_entry_instruction_len; evmcs->guest_rip = vmcs12->guest_rip; @@ -2435,6 +2507,8 @@ static void prepare_vmcs02_early(struct vcpu_vmx *vmx, struct loaded_vmcs *vmcs0 vmcs12->vm_entry_instruction_len); vmcs_write32(GUEST_INTERRUPTIBILITY_INFO, vmcs12->guest_interruptibility_info); + if (cpu_feature_enabled(X86_FEATURE_FRED)) + vmcs_write64(INJECTED_EVENT_DATA, vmcs12->injected_event_data); vmx->loaded_vmcs->nmi_known_unmasked = !(vmcs12->guest_interruptibility_info & GUEST_INTR_STATE_NMI); } else { @@ -2485,6 +2559,17 @@ static void prepare_vmcs02_rare(struct vcpu_vmx *vmx, struct vmcs12 *vmcs12) vmcs_writel(GUEST_GDTR_BASE, vmcs12->guest_gdtr_base); vmcs_writel(GUEST_IDTR_BASE, vmcs12->guest_idtr_base); + if (cpu_feature_enabled(X86_FEATURE_FRED)) { + vmcs_write64(GUEST_IA32_FRED_CONFIG, vmcs12->guest_ia32_fred_config); + vmcs_write64(GUEST_IA32_FRED_RSP1, vmcs12->guest_ia32_fred_rsp1); + vmcs_write64(GUEST_IA32_FRED_RSP2, vmcs12->guest_ia32_fred_rsp2); + vmcs_write64(GUEST_IA32_FRED_RSP3, vmcs12->guest_ia32_fred_rsp3); + vmcs_write64(GUEST_IA32_FRED_STKLVLS, vmcs12->guest_ia32_fred_stklvls); + vmcs_write64(GUEST_IA32_FRED_SSP1, vmcs12->guest_ia32_fred_ssp1); + vmcs_write64(GUEST_IA32_FRED_SSP2, vmcs12->guest_ia32_fred_ssp2); + vmcs_write64(GUEST_IA32_FRED_SSP3, vmcs12->guest_ia32_fred_ssp3); + } + vmx->segment_cache.bitmask = 0; } @@ -3765,6 +3850,22 @@ vmcs12_guest_cr4(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12) vcpu->arch.cr4_guest_owned_bits)); } +static inline unsigned long +nested_vmx_get_event_data(struct kvm_vcpu *vcpu, bool for_ex_vmexit) +{ + struct kvm_queued_exception *ex = for_ex_vmexit ? + &vcpu->arch.exception_vmexit : &vcpu->arch.exception; + + if (ex->has_payload) + return ex->payload; + else if (ex->vector == PF_VECTOR) + return vcpu->arch.cr2; + else if (ex->vector == DB_VECTOR) + return (vcpu->arch.dr6 & ~DR6_BT) ^ DR6_ACTIVE_LOW; + else + return 0; +} + static void vmcs12_save_pending_event(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12, u32 vm_exit_reason, u32 exit_intr_info) @@ -3772,6 +3873,8 @@ static void vmcs12_save_pending_event(struct kvm_vcpu *vcpu, u32 idt_vectoring; unsigned int nr; + vmcs12->original_event_data = 0; + /* * Per the SDM, VM-Exits due to double and triple faults are never * considered to occur during event delivery, even if the double/triple @@ -3810,6 +3913,12 @@ static void vmcs12_save_pending_event(struct kvm_vcpu *vcpu, vcpu->arch.exception.error_code; } + idt_vectoring |= vcpu->arch.exception.nested ? + INTR_INFO_NESTED_EXCEPTION_MASK : 0; + + vmcs12->original_event_data = + nested_vmx_get_event_data(vcpu, false); + vmcs12->idt_vectoring_info_field = idt_vectoring; } else if (vcpu->arch.nmi_injected) { vmcs12->idt_vectoring_info_field = @@ -3900,19 +4009,7 @@ static void nested_vmx_inject_exception_vmexit(struct kvm_vcpu *vcpu) struct kvm_queued_exception *ex = &vcpu->arch.exception_vmexit; u32 intr_info = ex->vector | INTR_INFO_VALID_MASK; struct vmcs12 *vmcs12 = get_vmcs12(vcpu); - unsigned long exit_qual; - - if (ex->has_payload) { - exit_qual = ex->payload; - } else if (ex->vector == PF_VECTOR) { - exit_qual = vcpu->arch.cr2; - } else if (ex->vector == DB_VECTOR) { - exit_qual = vcpu->arch.dr6; - exit_qual &= ~DR6_BT; - exit_qual ^= DR6_ACTIVE_LOW; - } else { - exit_qual = 0; - } + unsigned long exit_qual = nested_vmx_get_event_data(vcpu, true); /* * Unlike AMD's Paged Real Mode, which reports an error code on #PF @@ -4282,6 +4379,14 @@ static bool is_vmcs12_ext_field(unsigned long field) case GUEST_TR_BASE: case GUEST_GDTR_BASE: case GUEST_IDTR_BASE: + case GUEST_IA32_FRED_CONFIG: + case GUEST_IA32_FRED_RSP1: + case GUEST_IA32_FRED_RSP2: + case GUEST_IA32_FRED_RSP3: + case GUEST_IA32_FRED_STKLVLS: + case GUEST_IA32_FRED_SSP1: + case GUEST_IA32_FRED_SSP2: + case GUEST_IA32_FRED_SSP3: case GUEST_PENDING_DBG_EXCEPTIONS: case GUEST_BNDCFGS: return true; @@ -4331,6 +4436,18 @@ static void sync_vmcs02_to_vmcs12_rare(struct kvm_vcpu *vcpu, vmcs12->guest_tr_base = vmcs_readl(GUEST_TR_BASE); vmcs12->guest_gdtr_base = vmcs_readl(GUEST_GDTR_BASE); vmcs12->guest_idtr_base = vmcs_readl(GUEST_IDTR_BASE); + + if (cpu_feature_enabled(X86_FEATURE_FRED)) { + vmcs12->guest_ia32_fred_config = vmcs_read64(GUEST_IA32_FRED_CONFIG); + vmcs12->guest_ia32_fred_rsp1 = vmcs_read64(GUEST_IA32_FRED_RSP1); + vmcs12->guest_ia32_fred_rsp2 = vmcs_read64(GUEST_IA32_FRED_RSP2); + vmcs12->guest_ia32_fred_rsp3 = vmcs_read64(GUEST_IA32_FRED_RSP3); + vmcs12->guest_ia32_fred_stklvls = vmcs_read64(GUEST_IA32_FRED_STKLVLS); + vmcs12->guest_ia32_fred_ssp1 = vmcs_read64(GUEST_IA32_FRED_SSP1); + vmcs12->guest_ia32_fred_ssp2 = vmcs_read64(GUEST_IA32_FRED_SSP2); + vmcs12->guest_ia32_fred_ssp3 = vmcs_read64(GUEST_IA32_FRED_SSP3); + } + vmcs12->guest_pending_dbg_exceptions = vmcs_readl(GUEST_PENDING_DBG_EXCEPTIONS); @@ -4555,6 +4672,17 @@ static void load_vmcs12_host_state(struct kvm_vcpu *vcpu, vmcs_write32(GUEST_IDTR_LIMIT, 0xFFFF); vmcs_write32(GUEST_GDTR_LIMIT, 0xFFFF); + if (cpu_feature_enabled(X86_FEATURE_FRED)) { + vmcs_write64(GUEST_IA32_FRED_CONFIG, vmcs12->host_ia32_fred_config); + vmcs_write64(GUEST_IA32_FRED_RSP1, vmcs12->host_ia32_fred_rsp1); + vmcs_write64(GUEST_IA32_FRED_RSP2, vmcs12->host_ia32_fred_rsp2); + vmcs_write64(GUEST_IA32_FRED_RSP3, vmcs12->host_ia32_fred_rsp3); + vmcs_write64(GUEST_IA32_FRED_STKLVLS, vmcs12->host_ia32_fred_stklvls); + vmcs_write64(GUEST_IA32_FRED_SSP1, vmcs12->host_ia32_fred_ssp1); + vmcs_write64(GUEST_IA32_FRED_SSP2, vmcs12->host_ia32_fred_ssp2); + vmcs_write64(GUEST_IA32_FRED_SSP3, vmcs12->host_ia32_fred_ssp3); + } + /* If not VM_EXIT_CLEAR_BNDCFGS, the L2 value propagates to L1. */ if (vmcs12->vm_exit_controls & VM_EXIT_CLEAR_BNDCFGS) vmcs_write64(GUEST_BNDCFGS, 0); diff --git a/arch/x86/kvm/vmx/vmcs12.c b/arch/x86/kvm/vmx/vmcs12.c index 98457d7b2b23..59f17fdfad11 100644 --- a/arch/x86/kvm/vmx/vmcs12.c +++ b/arch/x86/kvm/vmx/vmcs12.c @@ -80,6 +80,7 @@ const unsigned short vmcs12_field_offsets[] = { FIELD(VM_ENTRY_MSR_LOAD_COUNT, vm_entry_msr_load_count), FIELD(VM_ENTRY_INTR_INFO_FIELD, vm_entry_intr_info_field), FIELD(VM_ENTRY_EXCEPTION_ERROR_CODE, vm_entry_exception_error_code), + FIELD(INJECTED_EVENT_DATA, injected_event_data), FIELD(VM_ENTRY_INSTRUCTION_LEN, vm_entry_instruction_len), FIELD(TPR_THRESHOLD, tpr_threshold), FIELD(SECONDARY_VM_EXEC_CONTROL, secondary_vm_exec_control), @@ -89,6 +90,7 @@ const unsigned short vmcs12_field_offsets[] = { FIELD(VM_EXIT_INTR_ERROR_CODE, vm_exit_intr_error_code), FIELD(IDT_VECTORING_INFO_FIELD, idt_vectoring_info_field), FIELD(IDT_VECTORING_ERROR_CODE, idt_vectoring_error_code), + FIELD(ORIGINAL_EVENT_DATA, original_event_data), FIELD(VM_EXIT_INSTRUCTION_LEN, vm_exit_instruction_len), FIELD(VMX_INSTRUCTION_INFO, vmx_instruction_info), FIELD(GUEST_ES_LIMIT, guest_es_limit), @@ -152,5 +154,21 @@ const unsigned short vmcs12_field_offsets[] = { FIELD(HOST_IA32_SYSENTER_EIP, host_ia32_sysenter_eip), FIELD(HOST_RSP, host_rsp), FIELD(HOST_RIP, host_rip), + FIELD(GUEST_IA32_FRED_CONFIG, guest_ia32_fred_config), + FIELD(GUEST_IA32_FRED_RSP1, guest_ia32_fred_rsp1), + FIELD(GUEST_IA32_FRED_RSP2, guest_ia32_fred_rsp2), + FIELD(GUEST_IA32_FRED_RSP3, guest_ia32_fred_rsp3), + FIELD(GUEST_IA32_FRED_STKLVLS, guest_ia32_fred_stklvls), + FIELD(GUEST_IA32_FRED_SSP1, guest_ia32_fred_ssp1), + FIELD(GUEST_IA32_FRED_SSP2, guest_ia32_fred_ssp2), + FIELD(GUEST_IA32_FRED_SSP3, guest_ia32_fred_ssp3), + FIELD(HOST_IA32_FRED_CONFIG, host_ia32_fred_config), + FIELD(HOST_IA32_FRED_RSP1, host_ia32_fred_rsp1), + FIELD(HOST_IA32_FRED_RSP2, host_ia32_fred_rsp2), + FIELD(HOST_IA32_FRED_RSP3, host_ia32_fred_rsp3), + FIELD(HOST_IA32_FRED_STKLVLS, host_ia32_fred_stklvls), + FIELD(HOST_IA32_FRED_SSP1, host_ia32_fred_ssp1), + FIELD(HOST_IA32_FRED_SSP2, host_ia32_fred_ssp2), + FIELD(HOST_IA32_FRED_SSP3, host_ia32_fred_ssp3), }; const unsigned int nr_vmcs12_fields = ARRAY_SIZE(vmcs12_field_offsets); diff --git a/arch/x86/kvm/vmx/vmcs12.h b/arch/x86/kvm/vmx/vmcs12.h index f50f897b9b5f..edf7fcef8ccf 100644 --- a/arch/x86/kvm/vmx/vmcs12.h +++ b/arch/x86/kvm/vmx/vmcs12.h @@ -186,6 +186,24 @@ struct __packed vmcs12 { u16 host_tr_selector; u16 guest_pml_index; u64 secondary_vm_exit_controls; + u64 guest_ia32_fred_config; + u64 guest_ia32_fred_rsp1; + u64 guest_ia32_fred_rsp2; + u64 guest_ia32_fred_rsp3; + u64 guest_ia32_fred_stklvls; + u64 guest_ia32_fred_ssp1; + u64 guest_ia32_fred_ssp2; + u64 guest_ia32_fred_ssp3; + u64 host_ia32_fred_config; + u64 host_ia32_fred_rsp1; + u64 host_ia32_fred_rsp2; + u64 host_ia32_fred_rsp3; + u64 host_ia32_fred_stklvls; + u64 host_ia32_fred_ssp1; + u64 host_ia32_fred_ssp2; + u64 host_ia32_fred_ssp3; + u64 injected_event_data; + u64 original_event_data; }; /* @@ -360,6 +378,24 @@ static inline void vmx_check_vmcs12_offsets(void) CHECK_OFFSET(host_tr_selector, 994); CHECK_OFFSET(guest_pml_index, 996); CHECK_OFFSET(secondary_vm_exit_controls, 998); + CHECK_OFFSET(guest_ia32_fred_config, 1006); + CHECK_OFFSET(guest_ia32_fred_rsp1, 1014); + CHECK_OFFSET(guest_ia32_fred_rsp2, 1022); + CHECK_OFFSET(guest_ia32_fred_rsp3, 1030); + CHECK_OFFSET(guest_ia32_fred_stklvls, 1038); + CHECK_OFFSET(guest_ia32_fred_ssp1, 1046); + CHECK_OFFSET(guest_ia32_fred_ssp2, 1054); + CHECK_OFFSET(guest_ia32_fred_ssp3, 1062); + CHECK_OFFSET(host_ia32_fred_config, 1070); + CHECK_OFFSET(host_ia32_fred_rsp1, 1078); + CHECK_OFFSET(host_ia32_fred_rsp2, 1086); + CHECK_OFFSET(host_ia32_fred_rsp3, 1094); + CHECK_OFFSET(host_ia32_fred_stklvls, 1102); + CHECK_OFFSET(host_ia32_fred_ssp1, 1110); + CHECK_OFFSET(host_ia32_fred_ssp2, 1118); + CHECK_OFFSET(host_ia32_fred_ssp3, 1126); + CHECK_OFFSET(injected_event_data, 1134); + CHECK_OFFSET(original_event_data, 1142); } extern const unsigned short vmcs12_field_offsets[]; diff --git a/arch/x86/kvm/vmx/vmcs_shadow_fields.h b/arch/x86/kvm/vmx/vmcs_shadow_fields.h index cad128d1657b..33c3e2a06e41 100644 --- a/arch/x86/kvm/vmx/vmcs_shadow_fields.h +++ b/arch/x86/kvm/vmx/vmcs_shadow_fields.h @@ -41,9 +41,9 @@ SHADOW_FIELD_RW(HOST_GS_SELECTOR, host_gs_selector) SHADOW_FIELD_RO(VM_EXIT_REASON, vm_exit_reason) SHADOW_FIELD_RO(VM_EXIT_INTR_INFO, vm_exit_intr_info) SHADOW_FIELD_RO(VM_EXIT_INSTRUCTION_LEN, vm_exit_instruction_len) +SHADOW_FIELD_RO(VM_EXIT_INTR_ERROR_CODE, vm_exit_intr_error_code) SHADOW_FIELD_RO(IDT_VECTORING_INFO_FIELD, idt_vectoring_info_field) SHADOW_FIELD_RO(IDT_VECTORING_ERROR_CODE, idt_vectoring_error_code) -SHADOW_FIELD_RO(VM_EXIT_INTR_ERROR_CODE, vm_exit_intr_error_code) SHADOW_FIELD_RO(GUEST_CS_AR_BYTES, guest_cs_ar_bytes) SHADOW_FIELD_RO(GUEST_SS_AR_BYTES, guest_ss_ar_bytes) SHADOW_FIELD_RW(CPU_BASED_VM_EXEC_CONTROL, cpu_based_vm_exec_control) @@ -74,6 +74,10 @@ SHADOW_FIELD_RW(HOST_GS_BASE, host_gs_base) /* 64-bit */ SHADOW_FIELD_RO(GUEST_PHYSICAL_ADDRESS, guest_physical_address) SHADOW_FIELD_RO(GUEST_PHYSICAL_ADDRESS_HIGH, guest_physical_address) +SHADOW_FIELD_RO(ORIGINAL_EVENT_DATA, original_event_data) +SHADOW_FIELD_RO(ORIGINAL_EVENT_DATA_HIGH, original_event_data) +SHADOW_FIELD_RW(INJECTED_EVENT_DATA, injected_event_data) +SHADOW_FIELD_RW(INJECTED_EVENT_DATA_HIGH, injected_event_data) #undef SHADOW_FIELD_RO #undef SHADOW_FIELD_RW