i8254.o ioapic.o irq_comm.o cpuid.o pmu.o mtrr.o \
hyperv.o page_track.o debugfs.o
-kvm-intel-y += vmx/vmx.o vmx/pmu_intel.o vmx/vmcs12.o
+kvm-intel-y += vmx/vmx.o vmx/pmu_intel.o vmx/vmcs12.o vmx/evmcs.o
kvm-amd-y += svm.o pmu_amd.o
obj-$(CONFIG_KVM) += kvm.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/errno.h>
+#include <linux/smp.h>
+
+#include "evmcs.h"
+#include "vmcs.h"
+#include "vmx.h"
+
+DEFINE_STATIC_KEY_FALSE(enable_evmcs);
+
+#if IS_ENABLED(CONFIG_HYPERV)
+
+#define ROL16(val, n) ((u16)(((u16)(val) << (n)) | ((u16)(val) >> (16 - (n)))))
+#define EVMCS1_OFFSET(x) offsetof(struct hv_enlightened_vmcs, x)
+#define EVMCS1_FIELD(number, name, clean_field)[ROL16(number, 6)] = \
+ {EVMCS1_OFFSET(name), clean_field}
+
+const struct evmcs_field vmcs_field_to_evmcs_1[] = {
+ /* 64 bit rw */
+ EVMCS1_FIELD(GUEST_RIP, guest_rip,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+ EVMCS1_FIELD(GUEST_RSP, guest_rsp,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC),
+ EVMCS1_FIELD(GUEST_RFLAGS, guest_rflags,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC),
+ EVMCS1_FIELD(HOST_IA32_PAT, host_ia32_pat,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(HOST_IA32_EFER, host_ia32_efer,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(HOST_CR0, host_cr0,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(HOST_CR3, host_cr3,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(HOST_CR4, host_cr4,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(HOST_IA32_SYSENTER_ESP, host_ia32_sysenter_esp,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(HOST_IA32_SYSENTER_EIP, host_ia32_sysenter_eip,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(HOST_RIP, host_rip,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(IO_BITMAP_A, io_bitmap_a,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP),
+ EVMCS1_FIELD(IO_BITMAP_B, io_bitmap_b,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP),
+ EVMCS1_FIELD(MSR_BITMAP, msr_bitmap,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP),
+ EVMCS1_FIELD(GUEST_ES_BASE, guest_es_base,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_CS_BASE, guest_cs_base,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_SS_BASE, guest_ss_base,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_DS_BASE, guest_ds_base,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_FS_BASE, guest_fs_base,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_GS_BASE, guest_gs_base,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_LDTR_BASE, guest_ldtr_base,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_TR_BASE, guest_tr_base,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_GDTR_BASE, guest_gdtr_base,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_IDTR_BASE, guest_idtr_base,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(TSC_OFFSET, tsc_offset,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2),
+ EVMCS1_FIELD(VIRTUAL_APIC_PAGE_ADDR, virtual_apic_page_addr,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2),
+ EVMCS1_FIELD(VMCS_LINK_POINTER, vmcs_link_pointer,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ EVMCS1_FIELD(GUEST_IA32_DEBUGCTL, guest_ia32_debugctl,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ EVMCS1_FIELD(GUEST_IA32_PAT, guest_ia32_pat,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ EVMCS1_FIELD(GUEST_IA32_EFER, guest_ia32_efer,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ EVMCS1_FIELD(GUEST_PDPTR0, guest_pdptr0,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ EVMCS1_FIELD(GUEST_PDPTR1, guest_pdptr1,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ EVMCS1_FIELD(GUEST_PDPTR2, guest_pdptr2,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ EVMCS1_FIELD(GUEST_PDPTR3, guest_pdptr3,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ EVMCS1_FIELD(GUEST_PENDING_DBG_EXCEPTIONS, guest_pending_dbg_exceptions,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ EVMCS1_FIELD(GUEST_SYSENTER_ESP, guest_sysenter_esp,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ EVMCS1_FIELD(GUEST_SYSENTER_EIP, guest_sysenter_eip,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ EVMCS1_FIELD(CR0_GUEST_HOST_MASK, cr0_guest_host_mask,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
+ EVMCS1_FIELD(CR4_GUEST_HOST_MASK, cr4_guest_host_mask,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
+ EVMCS1_FIELD(CR0_READ_SHADOW, cr0_read_shadow,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
+ EVMCS1_FIELD(CR4_READ_SHADOW, cr4_read_shadow,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
+ EVMCS1_FIELD(GUEST_CR0, guest_cr0,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
+ EVMCS1_FIELD(GUEST_CR3, guest_cr3,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
+ EVMCS1_FIELD(GUEST_CR4, guest_cr4,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
+ EVMCS1_FIELD(GUEST_DR7, guest_dr7,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
+ EVMCS1_FIELD(HOST_FS_BASE, host_fs_base,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
+ EVMCS1_FIELD(HOST_GS_BASE, host_gs_base,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
+ EVMCS1_FIELD(HOST_TR_BASE, host_tr_base,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
+ EVMCS1_FIELD(HOST_GDTR_BASE, host_gdtr_base,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
+ EVMCS1_FIELD(HOST_IDTR_BASE, host_idtr_base,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
+ EVMCS1_FIELD(HOST_RSP, host_rsp,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
+ EVMCS1_FIELD(EPT_POINTER, ept_pointer,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT),
+ EVMCS1_FIELD(GUEST_BNDCFGS, guest_bndcfgs,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ EVMCS1_FIELD(XSS_EXIT_BITMAP, xss_exit_bitmap,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2),
+
+ /* 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),
+ /*
+ * Not defined in KVM:
+ *
+ * EVMCS1_FIELD(0x00006402, exit_io_instruction_ecx,
+ * HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE);
+ * EVMCS1_FIELD(0x00006404, exit_io_instruction_esi,
+ * HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE);
+ * EVMCS1_FIELD(0x00006406, exit_io_instruction_esi,
+ * HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE);
+ * EVMCS1_FIELD(0x00006408, exit_io_instruction_eip,
+ * HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE);
+ */
+ EVMCS1_FIELD(GUEST_LINEAR_ADDRESS, guest_linear_address,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+
+ /*
+ * No mask defined in the spec as Hyper-V doesn't currently support
+ * these. Future proof by resetting the whole clean field mask on
+ * access.
+ */
+ EVMCS1_FIELD(VM_EXIT_MSR_STORE_ADDR, vm_exit_msr_store_addr,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+ EVMCS1_FIELD(VM_EXIT_MSR_LOAD_ADDR, vm_exit_msr_load_addr,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+ EVMCS1_FIELD(VM_ENTRY_MSR_LOAD_ADDR, vm_entry_msr_load_addr,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+ EVMCS1_FIELD(CR3_TARGET_VALUE0, cr3_target_value0,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+ EVMCS1_FIELD(CR3_TARGET_VALUE1, cr3_target_value1,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+ EVMCS1_FIELD(CR3_TARGET_VALUE2, cr3_target_value2,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+ EVMCS1_FIELD(CR3_TARGET_VALUE3, cr3_target_value3,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+
+ /* 32 bit rw */
+ EVMCS1_FIELD(TPR_THRESHOLD, tpr_threshold,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+ EVMCS1_FIELD(GUEST_INTERRUPTIBILITY_INFO, guest_interruptibility_info,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC),
+ EVMCS1_FIELD(CPU_BASED_VM_EXEC_CONTROL, cpu_based_vm_exec_control,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_PROC),
+ EVMCS1_FIELD(EXCEPTION_BITMAP, exception_bitmap,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EXCPN),
+ EVMCS1_FIELD(VM_ENTRY_CONTROLS, vm_entry_controls,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_ENTRY),
+ EVMCS1_FIELD(VM_ENTRY_INTR_INFO_FIELD, vm_entry_intr_info_field,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT),
+ EVMCS1_FIELD(VM_ENTRY_EXCEPTION_ERROR_CODE,
+ vm_entry_exception_error_code,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT),
+ EVMCS1_FIELD(VM_ENTRY_INSTRUCTION_LEN, vm_entry_instruction_len,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT),
+ EVMCS1_FIELD(HOST_IA32_SYSENTER_CS, host_ia32_sysenter_cs,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(PIN_BASED_VM_EXEC_CONTROL, pin_based_vm_exec_control,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1),
+ EVMCS1_FIELD(VM_EXIT_CONTROLS, vm_exit_controls,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1),
+ EVMCS1_FIELD(SECONDARY_VM_EXEC_CONTROL, secondary_vm_exec_control,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1),
+ EVMCS1_FIELD(GUEST_ES_LIMIT, guest_es_limit,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_CS_LIMIT, guest_cs_limit,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_SS_LIMIT, guest_ss_limit,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_DS_LIMIT, guest_ds_limit,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_FS_LIMIT, guest_fs_limit,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_GS_LIMIT, guest_gs_limit,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_LDTR_LIMIT, guest_ldtr_limit,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_TR_LIMIT, guest_tr_limit,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_GDTR_LIMIT, guest_gdtr_limit,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_IDTR_LIMIT, guest_idtr_limit,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_ES_AR_BYTES, guest_es_ar_bytes,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_CS_AR_BYTES, guest_cs_ar_bytes,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_SS_AR_BYTES, guest_ss_ar_bytes,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_DS_AR_BYTES, guest_ds_ar_bytes,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_FS_AR_BYTES, guest_fs_ar_bytes,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_GS_AR_BYTES, guest_gs_ar_bytes,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_LDTR_AR_BYTES, guest_ldtr_ar_bytes,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_TR_AR_BYTES, guest_tr_ar_bytes,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_ACTIVITY_STATE, guest_activity_state,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ EVMCS1_FIELD(GUEST_SYSENTER_CS, guest_sysenter_cs,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+
+ /* 32 bit read only */
+ EVMCS1_FIELD(VM_INSTRUCTION_ERROR, vm_instruction_error,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+ EVMCS1_FIELD(VM_EXIT_REASON, vm_exit_reason,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+ EVMCS1_FIELD(VM_EXIT_INTR_INFO, vm_exit_intr_info,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+ EVMCS1_FIELD(VM_EXIT_INTR_ERROR_CODE, vm_exit_intr_error_code,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+ EVMCS1_FIELD(IDT_VECTORING_INFO_FIELD, idt_vectoring_info_field,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+ EVMCS1_FIELD(IDT_VECTORING_ERROR_CODE, idt_vectoring_error_code,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+ EVMCS1_FIELD(VM_EXIT_INSTRUCTION_LEN, vm_exit_instruction_len,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+ EVMCS1_FIELD(VMX_INSTRUCTION_INFO, vmx_instruction_info,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+
+ /* No mask defined in the spec (not used) */
+ EVMCS1_FIELD(PAGE_FAULT_ERROR_CODE_MASK, page_fault_error_code_mask,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+ EVMCS1_FIELD(PAGE_FAULT_ERROR_CODE_MATCH, page_fault_error_code_match,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+ EVMCS1_FIELD(CR3_TARGET_COUNT, cr3_target_count,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+ EVMCS1_FIELD(VM_EXIT_MSR_STORE_COUNT, vm_exit_msr_store_count,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+ EVMCS1_FIELD(VM_EXIT_MSR_LOAD_COUNT, vm_exit_msr_load_count,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+ EVMCS1_FIELD(VM_ENTRY_MSR_LOAD_COUNT, vm_entry_msr_load_count,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+
+ /* 16 bit rw */
+ EVMCS1_FIELD(HOST_ES_SELECTOR, host_es_selector,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(HOST_CS_SELECTOR, host_cs_selector,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(HOST_SS_SELECTOR, host_ss_selector,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(HOST_DS_SELECTOR, host_ds_selector,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(HOST_FS_SELECTOR, host_fs_selector,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(HOST_GS_SELECTOR, host_gs_selector,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(HOST_TR_SELECTOR, host_tr_selector,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(GUEST_ES_SELECTOR, guest_es_selector,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_CS_SELECTOR, guest_cs_selector,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_SS_SELECTOR, guest_ss_selector,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_DS_SELECTOR, guest_ds_selector,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_FS_SELECTOR, guest_fs_selector,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_GS_SELECTOR, guest_gs_selector,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_LDTR_SELECTOR, guest_ldtr_selector,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(GUEST_TR_SELECTOR, guest_tr_selector,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+ EVMCS1_FIELD(VIRTUAL_PROCESSOR_ID, virtual_processor_id,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT),
+};
+const unsigned int nr_evmcs_1_fields = ARRAY_SIZE(vmcs_field_to_evmcs_1);
+
+void evmcs_sanitize_exec_ctrls(struct vmcs_config *vmcs_conf)
+{
+ vmcs_conf->pin_based_exec_ctrl &= ~EVMCS1_UNSUPPORTED_PINCTRL;
+ vmcs_conf->cpu_based_2nd_exec_ctrl &= ~EVMCS1_UNSUPPORTED_2NDEXEC;
+
+ vmcs_conf->vmexit_ctrl &= ~EVMCS1_UNSUPPORTED_VMEXIT_CTRL;
+ vmcs_conf->vmentry_ctrl &= ~EVMCS1_UNSUPPORTED_VMENTRY_CTRL;
+
+}
+#endif
+
+int nested_enable_evmcs(struct kvm_vcpu *vcpu,
+ uint16_t *vmcs_version)
+{
+ struct vcpu_vmx *vmx = to_vmx(vcpu);
+
+ /*
+ * vmcs_version represents the range of supported Enlightened VMCS
+ * versions: lower 8 bits is the minimal version, higher 8 bits is the
+ * maximum supported version. KVM supports versions from 1 to
+ * KVM_EVMCS_VERSION.
+ */
+ if (vmcs_version)
+ *vmcs_version = (KVM_EVMCS_VERSION << 8) | 1;
+
+ /* We don't support disabling the feature for simplicity. */
+ if (vmx->nested.enlightened_vmcs_enabled)
+ return 0;
+
+ vmx->nested.enlightened_vmcs_enabled = true;
+
+ vmx->nested.msrs.pinbased_ctls_high &= ~EVMCS1_UNSUPPORTED_PINCTRL;
+ vmx->nested.msrs.entry_ctls_high &= ~EVMCS1_UNSUPPORTED_VMENTRY_CTRL;
+ vmx->nested.msrs.exit_ctls_high &= ~EVMCS1_UNSUPPORTED_VMEXIT_CTRL;
+ vmx->nested.msrs.secondary_ctls_high &= ~EVMCS1_UNSUPPORTED_2NDEXEC;
+ vmx->nested.msrs.vmfunc_controls &= ~EVMCS1_UNSUPPORTED_VMFUNC;
+
+ return 0;
+}
#ifndef __KVM_X86_VMX_EVMCS_H
#define __KVM_X86_VMX_EVMCS_H
-#include <asm/hyperv-tlfs.h>
+#include <linux/jump_label.h>
-#define ROL16(val, n) ((u16)(((u16)(val) << (n)) | ((u16)(val) >> (16 - (n)))))
-#define EVMCS1_OFFSET(x) offsetof(struct hv_enlightened_vmcs, x)
-#define EVMCS1_FIELD(number, name, clean_field)[ROL16(number, 6)] = \
- {EVMCS1_OFFSET(name), clean_field}
+#include <asm/hyperv-tlfs.h>
+#include <asm/mshyperv.h>
+#include <asm/vmx.h>
+
+#include "capabilities.h"
+#include "vmcs.h"
+
+struct vmcs_config;
+
+DECLARE_STATIC_KEY_FALSE(enable_evmcs);
+
+#define current_evmcs ((struct hv_enlightened_vmcs *)this_cpu_read(current_vmcs))
+
+#define KVM_EVMCS_VERSION 1
+
+/*
+ * Enlightened VMCSv1 doesn't support these:
+ *
+ * POSTED_INTR_NV = 0x00000002,
+ * GUEST_INTR_STATUS = 0x00000810,
+ * APIC_ACCESS_ADDR = 0x00002014,
+ * POSTED_INTR_DESC_ADDR = 0x00002016,
+ * EOI_EXIT_BITMAP0 = 0x0000201c,
+ * EOI_EXIT_BITMAP1 = 0x0000201e,
+ * EOI_EXIT_BITMAP2 = 0x00002020,
+ * EOI_EXIT_BITMAP3 = 0x00002022,
+ * GUEST_PML_INDEX = 0x00000812,
+ * PML_ADDRESS = 0x0000200e,
+ * VM_FUNCTION_CONTROL = 0x00002018,
+ * EPTP_LIST_ADDRESS = 0x00002024,
+ * VMREAD_BITMAP = 0x00002026,
+ * VMWRITE_BITMAP = 0x00002028,
+ *
+ * TSC_MULTIPLIER = 0x00002032,
+ * PLE_GAP = 0x00004020,
+ * PLE_WINDOW = 0x00004022,
+ * VMX_PREEMPTION_TIMER_VALUE = 0x0000482E,
+ * GUEST_IA32_PERF_GLOBAL_CTRL = 0x00002808,
+ * HOST_IA32_PERF_GLOBAL_CTRL = 0x00002c04,
+ *
+ * Currently unsupported in KVM:
+ * GUEST_IA32_RTIT_CTL = 0x00002814,
+ */
+#define EVMCS1_UNSUPPORTED_PINCTRL (PIN_BASED_POSTED_INTR | \
+ PIN_BASED_VMX_PREEMPTION_TIMER)
+#define EVMCS1_UNSUPPORTED_2NDEXEC \
+ (SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY | \
+ SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES | \
+ SECONDARY_EXEC_APIC_REGISTER_VIRT | \
+ 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_LOAD_IA32_PERF_GLOBAL_CTRL)
+#define EVMCS1_UNSUPPORTED_VMENTRY_CTRL (VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL)
+#define EVMCS1_UNSUPPORTED_VMFUNC (VMX_VMFUNC_EPTP_SWITCHING)
+
+#if IS_ENABLED(CONFIG_HYPERV)
struct evmcs_field {
u16 offset;
u16 clean_field;
};
-static const struct evmcs_field vmcs_field_to_evmcs_1[] = {
- /* 64 bit rw */
- EVMCS1_FIELD(GUEST_RIP, guest_rip,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
- EVMCS1_FIELD(GUEST_RSP, guest_rsp,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC),
- EVMCS1_FIELD(GUEST_RFLAGS, guest_rflags,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC),
- EVMCS1_FIELD(HOST_IA32_PAT, host_ia32_pat,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
- EVMCS1_FIELD(HOST_IA32_EFER, host_ia32_efer,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
- EVMCS1_FIELD(HOST_CR0, host_cr0,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
- EVMCS1_FIELD(HOST_CR3, host_cr3,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
- EVMCS1_FIELD(HOST_CR4, host_cr4,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
- EVMCS1_FIELD(HOST_IA32_SYSENTER_ESP, host_ia32_sysenter_esp,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
- EVMCS1_FIELD(HOST_IA32_SYSENTER_EIP, host_ia32_sysenter_eip,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
- EVMCS1_FIELD(HOST_RIP, host_rip,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
- EVMCS1_FIELD(IO_BITMAP_A, io_bitmap_a,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP),
- EVMCS1_FIELD(IO_BITMAP_B, io_bitmap_b,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP),
- EVMCS1_FIELD(MSR_BITMAP, msr_bitmap,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP),
- EVMCS1_FIELD(GUEST_ES_BASE, guest_es_base,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_CS_BASE, guest_cs_base,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_SS_BASE, guest_ss_base,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_DS_BASE, guest_ds_base,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_FS_BASE, guest_fs_base,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_GS_BASE, guest_gs_base,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_LDTR_BASE, guest_ldtr_base,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_TR_BASE, guest_tr_base,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_GDTR_BASE, guest_gdtr_base,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_IDTR_BASE, guest_idtr_base,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(TSC_OFFSET, tsc_offset,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2),
- EVMCS1_FIELD(VIRTUAL_APIC_PAGE_ADDR, virtual_apic_page_addr,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2),
- EVMCS1_FIELD(VMCS_LINK_POINTER, vmcs_link_pointer,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
- EVMCS1_FIELD(GUEST_IA32_DEBUGCTL, guest_ia32_debugctl,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
- EVMCS1_FIELD(GUEST_IA32_PAT, guest_ia32_pat,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
- EVMCS1_FIELD(GUEST_IA32_EFER, guest_ia32_efer,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
- EVMCS1_FIELD(GUEST_PDPTR0, guest_pdptr0,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
- EVMCS1_FIELD(GUEST_PDPTR1, guest_pdptr1,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
- EVMCS1_FIELD(GUEST_PDPTR2, guest_pdptr2,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
- EVMCS1_FIELD(GUEST_PDPTR3, guest_pdptr3,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
- EVMCS1_FIELD(GUEST_PENDING_DBG_EXCEPTIONS, guest_pending_dbg_exceptions,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
- EVMCS1_FIELD(GUEST_SYSENTER_ESP, guest_sysenter_esp,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
- EVMCS1_FIELD(GUEST_SYSENTER_EIP, guest_sysenter_eip,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
- EVMCS1_FIELD(CR0_GUEST_HOST_MASK, cr0_guest_host_mask,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
- EVMCS1_FIELD(CR4_GUEST_HOST_MASK, cr4_guest_host_mask,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
- EVMCS1_FIELD(CR0_READ_SHADOW, cr0_read_shadow,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
- EVMCS1_FIELD(CR4_READ_SHADOW, cr4_read_shadow,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
- EVMCS1_FIELD(GUEST_CR0, guest_cr0,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
- EVMCS1_FIELD(GUEST_CR3, guest_cr3,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
- EVMCS1_FIELD(GUEST_CR4, guest_cr4,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
- EVMCS1_FIELD(GUEST_DR7, guest_dr7,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
- EVMCS1_FIELD(HOST_FS_BASE, host_fs_base,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
- EVMCS1_FIELD(HOST_GS_BASE, host_gs_base,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
- EVMCS1_FIELD(HOST_TR_BASE, host_tr_base,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
- EVMCS1_FIELD(HOST_GDTR_BASE, host_gdtr_base,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
- EVMCS1_FIELD(HOST_IDTR_BASE, host_idtr_base,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
- EVMCS1_FIELD(HOST_RSP, host_rsp,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
- EVMCS1_FIELD(EPT_POINTER, ept_pointer,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT),
- EVMCS1_FIELD(GUEST_BNDCFGS, guest_bndcfgs,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
- EVMCS1_FIELD(XSS_EXIT_BITMAP, xss_exit_bitmap,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2),
-
- /* 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),
- /*
- * Not defined in KVM:
- *
- * EVMCS1_FIELD(0x00006402, exit_io_instruction_ecx,
- * HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE);
- * EVMCS1_FIELD(0x00006404, exit_io_instruction_esi,
- * HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE);
- * EVMCS1_FIELD(0x00006406, exit_io_instruction_esi,
- * HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE);
- * EVMCS1_FIELD(0x00006408, exit_io_instruction_eip,
- * HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE);
- */
- EVMCS1_FIELD(GUEST_LINEAR_ADDRESS, guest_linear_address,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
-
- /*
- * No mask defined in the spec as Hyper-V doesn't currently support
- * these. Future proof by resetting the whole clean field mask on
- * access.
- */
- EVMCS1_FIELD(VM_EXIT_MSR_STORE_ADDR, vm_exit_msr_store_addr,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
- EVMCS1_FIELD(VM_EXIT_MSR_LOAD_ADDR, vm_exit_msr_load_addr,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
- EVMCS1_FIELD(VM_ENTRY_MSR_LOAD_ADDR, vm_entry_msr_load_addr,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
- EVMCS1_FIELD(CR3_TARGET_VALUE0, cr3_target_value0,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
- EVMCS1_FIELD(CR3_TARGET_VALUE1, cr3_target_value1,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
- EVMCS1_FIELD(CR3_TARGET_VALUE2, cr3_target_value2,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
- EVMCS1_FIELD(CR3_TARGET_VALUE3, cr3_target_value3,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
-
- /* 32 bit rw */
- EVMCS1_FIELD(TPR_THRESHOLD, tpr_threshold,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
- EVMCS1_FIELD(GUEST_INTERRUPTIBILITY_INFO, guest_interruptibility_info,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC),
- EVMCS1_FIELD(CPU_BASED_VM_EXEC_CONTROL, cpu_based_vm_exec_control,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_PROC),
- EVMCS1_FIELD(EXCEPTION_BITMAP, exception_bitmap,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EXCPN),
- EVMCS1_FIELD(VM_ENTRY_CONTROLS, vm_entry_controls,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_ENTRY),
- EVMCS1_FIELD(VM_ENTRY_INTR_INFO_FIELD, vm_entry_intr_info_field,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT),
- EVMCS1_FIELD(VM_ENTRY_EXCEPTION_ERROR_CODE,
- vm_entry_exception_error_code,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT),
- EVMCS1_FIELD(VM_ENTRY_INSTRUCTION_LEN, vm_entry_instruction_len,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT),
- EVMCS1_FIELD(HOST_IA32_SYSENTER_CS, host_ia32_sysenter_cs,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
- EVMCS1_FIELD(PIN_BASED_VM_EXEC_CONTROL, pin_based_vm_exec_control,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1),
- EVMCS1_FIELD(VM_EXIT_CONTROLS, vm_exit_controls,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1),
- EVMCS1_FIELD(SECONDARY_VM_EXEC_CONTROL, secondary_vm_exec_control,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1),
- EVMCS1_FIELD(GUEST_ES_LIMIT, guest_es_limit,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_CS_LIMIT, guest_cs_limit,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_SS_LIMIT, guest_ss_limit,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_DS_LIMIT, guest_ds_limit,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_FS_LIMIT, guest_fs_limit,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_GS_LIMIT, guest_gs_limit,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_LDTR_LIMIT, guest_ldtr_limit,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_TR_LIMIT, guest_tr_limit,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_GDTR_LIMIT, guest_gdtr_limit,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_IDTR_LIMIT, guest_idtr_limit,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_ES_AR_BYTES, guest_es_ar_bytes,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_CS_AR_BYTES, guest_cs_ar_bytes,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_SS_AR_BYTES, guest_ss_ar_bytes,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_DS_AR_BYTES, guest_ds_ar_bytes,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_FS_AR_BYTES, guest_fs_ar_bytes,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_GS_AR_BYTES, guest_gs_ar_bytes,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_LDTR_AR_BYTES, guest_ldtr_ar_bytes,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_TR_AR_BYTES, guest_tr_ar_bytes,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_ACTIVITY_STATE, guest_activity_state,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
- EVMCS1_FIELD(GUEST_SYSENTER_CS, guest_sysenter_cs,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
-
- /* 32 bit read only */
- EVMCS1_FIELD(VM_INSTRUCTION_ERROR, vm_instruction_error,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
- EVMCS1_FIELD(VM_EXIT_REASON, vm_exit_reason,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
- EVMCS1_FIELD(VM_EXIT_INTR_INFO, vm_exit_intr_info,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
- EVMCS1_FIELD(VM_EXIT_INTR_ERROR_CODE, vm_exit_intr_error_code,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
- EVMCS1_FIELD(IDT_VECTORING_INFO_FIELD, idt_vectoring_info_field,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
- EVMCS1_FIELD(IDT_VECTORING_ERROR_CODE, idt_vectoring_error_code,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
- EVMCS1_FIELD(VM_EXIT_INSTRUCTION_LEN, vm_exit_instruction_len,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
- EVMCS1_FIELD(VMX_INSTRUCTION_INFO, vmx_instruction_info,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
-
- /* No mask defined in the spec (not used) */
- EVMCS1_FIELD(PAGE_FAULT_ERROR_CODE_MASK, page_fault_error_code_mask,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
- EVMCS1_FIELD(PAGE_FAULT_ERROR_CODE_MATCH, page_fault_error_code_match,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
- EVMCS1_FIELD(CR3_TARGET_COUNT, cr3_target_count,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
- EVMCS1_FIELD(VM_EXIT_MSR_STORE_COUNT, vm_exit_msr_store_count,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
- EVMCS1_FIELD(VM_EXIT_MSR_LOAD_COUNT, vm_exit_msr_load_count,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
- EVMCS1_FIELD(VM_ENTRY_MSR_LOAD_COUNT, vm_entry_msr_load_count,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
-
- /* 16 bit rw */
- EVMCS1_FIELD(HOST_ES_SELECTOR, host_es_selector,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
- EVMCS1_FIELD(HOST_CS_SELECTOR, host_cs_selector,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
- EVMCS1_FIELD(HOST_SS_SELECTOR, host_ss_selector,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
- EVMCS1_FIELD(HOST_DS_SELECTOR, host_ds_selector,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
- EVMCS1_FIELD(HOST_FS_SELECTOR, host_fs_selector,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
- EVMCS1_FIELD(HOST_GS_SELECTOR, host_gs_selector,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
- EVMCS1_FIELD(HOST_TR_SELECTOR, host_tr_selector,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
- EVMCS1_FIELD(GUEST_ES_SELECTOR, guest_es_selector,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_CS_SELECTOR, guest_cs_selector,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_SS_SELECTOR, guest_ss_selector,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_DS_SELECTOR, guest_ds_selector,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_FS_SELECTOR, guest_fs_selector,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_GS_SELECTOR, guest_gs_selector,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_LDTR_SELECTOR, guest_ldtr_selector,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(GUEST_TR_SELECTOR, guest_tr_selector,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
- EVMCS1_FIELD(VIRTUAL_PROCESSOR_ID, virtual_processor_id,
- HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT),
-};
+extern const struct evmcs_field vmcs_field_to_evmcs_1[];
+extern const unsigned int nr_evmcs_1_fields;
+
+#define ROL16(val, n) ((u16)(((u16)(val) << (n)) | ((u16)(val) >> (16 - (n)))))
static __always_inline int get_evmcs_offset(unsigned long field,
u16 *clean_field)
unsigned int index = ROL16(field, 6);
const struct evmcs_field *evmcs_field;
- if (unlikely(index >= ARRAY_SIZE(vmcs_field_to_evmcs_1))) {
+ if (unlikely(index >= nr_evmcs_1_fields)) {
WARN_ONCE(1, "KVM: accessing unsupported EVMCS field %lx\n",
field);
return -ENOENT;
#undef ROL16
+static inline void evmcs_write64(unsigned long field, u64 value)
+{
+ u16 clean_field;
+ int offset = get_evmcs_offset(field, &clean_field);
+
+ if (offset < 0)
+ return;
+
+ *(u64 *)((char *)current_evmcs + offset) = value;
+
+ current_evmcs->hv_clean_fields &= ~clean_field;
+}
+
+static inline void evmcs_write32(unsigned long field, u32 value)
+{
+ u16 clean_field;
+ int offset = get_evmcs_offset(field, &clean_field);
+
+ if (offset < 0)
+ return;
+
+ *(u32 *)((char *)current_evmcs + offset) = value;
+ current_evmcs->hv_clean_fields &= ~clean_field;
+}
+
+static inline void evmcs_write16(unsigned long field, u16 value)
+{
+ u16 clean_field;
+ int offset = get_evmcs_offset(field, &clean_field);
+
+ if (offset < 0)
+ return;
+
+ *(u16 *)((char *)current_evmcs + offset) = value;
+ current_evmcs->hv_clean_fields &= ~clean_field;
+}
+
+static inline u64 evmcs_read64(unsigned long field)
+{
+ int offset = get_evmcs_offset(field, NULL);
+
+ if (offset < 0)
+ return 0;
+
+ return *(u64 *)((char *)current_evmcs + offset);
+}
+
+static inline u32 evmcs_read32(unsigned long field)
+{
+ int offset = get_evmcs_offset(field, NULL);
+
+ if (offset < 0)
+ return 0;
+
+ return *(u32 *)((char *)current_evmcs + offset);
+}
+
+static inline u16 evmcs_read16(unsigned long field)
+{
+ int offset = get_evmcs_offset(field, NULL);
+
+ if (offset < 0)
+ return 0;
+
+ return *(u16 *)((char *)current_evmcs + offset);
+}
+
+static inline void evmcs_touch_msr_bitmap(void)
+{
+ if (unlikely(!current_evmcs))
+ return;
+
+ if (current_evmcs->hv_enlightenments_control.msr_bitmap)
+ current_evmcs->hv_clean_fields &=
+ ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP;
+}
+
+static inline void evmcs_load(u64 phys_addr)
+{
+ struct hv_vp_assist_page *vp_ap =
+ hv_get_vp_assist_page(smp_processor_id());
+
+ vp_ap->current_nested_vmcs = phys_addr;
+ vp_ap->enlighten_vmentry = 1;
+}
+
+void evmcs_sanitize_exec_ctrls(struct vmcs_config *vmcs_conf);
+#else /* !IS_ENABLED(CONFIG_HYPERV) */
+static inline void evmcs_write64(unsigned long field, u64 value) {}
+static inline void evmcs_write32(unsigned long field, u32 value) {}
+static inline void evmcs_write16(unsigned long field, u16 value) {}
+static inline u64 evmcs_read64(unsigned long field) { return 0; }
+static inline u32 evmcs_read32(unsigned long field) { return 0; }
+static inline u16 evmcs_read16(unsigned long field) { return 0; }
+static inline void evmcs_load(u64 phys_addr) {}
+static inline void evmcs_sanitize_exec_ctrls(struct vmcs_config *vmcs_conf) {}
+static inline void evmcs_touch_msr_bitmap(void) {}
+#endif /* IS_ENABLED(CONFIG_HYPERV) */
+
+int nested_enable_evmcs(struct kvm_vcpu *vcpu,
+ uint16_t *vmcs_version);
+
#endif /* __KVM_X86_VMX_EVMCS_H */
char data[0];
};
+DECLARE_PER_CPU(struct vmcs *, current_vmcs);
+
/*
* vmcs_host_state tracks registers that are loaded from the VMCS on VMEXIT
* and whose values change infrequently, but are not constant. I.e. this is
u32 msr, int type);
static DEFINE_PER_CPU(struct vmcs *, vmxarea);
-static DEFINE_PER_CPU(struct vmcs *, current_vmcs);
+DEFINE_PER_CPU(struct vmcs *, current_vmcs);
/*
* We maintain a per-CPU linked-list of VMCS loaded on that CPU. This is needed
* when a CPU is brought down, and we need to VMCLEAR all VMCSs loaded on it.
MSR_EFER, MSR_TSC_AUX, MSR_STAR,
};
-DEFINE_STATIC_KEY_FALSE(enable_evmcs);
-
-#define current_evmcs ((struct hv_enlightened_vmcs *)this_cpu_read(current_vmcs))
-
-#define KVM_EVMCS_VERSION 1
-
-/*
- * Enlightened VMCSv1 doesn't support these:
- *
- * POSTED_INTR_NV = 0x00000002,
- * GUEST_INTR_STATUS = 0x00000810,
- * APIC_ACCESS_ADDR = 0x00002014,
- * POSTED_INTR_DESC_ADDR = 0x00002016,
- * EOI_EXIT_BITMAP0 = 0x0000201c,
- * EOI_EXIT_BITMAP1 = 0x0000201e,
- * EOI_EXIT_BITMAP2 = 0x00002020,
- * EOI_EXIT_BITMAP3 = 0x00002022,
- * GUEST_PML_INDEX = 0x00000812,
- * PML_ADDRESS = 0x0000200e,
- * VM_FUNCTION_CONTROL = 0x00002018,
- * EPTP_LIST_ADDRESS = 0x00002024,
- * VMREAD_BITMAP = 0x00002026,
- * VMWRITE_BITMAP = 0x00002028,
- *
- * TSC_MULTIPLIER = 0x00002032,
- * PLE_GAP = 0x00004020,
- * PLE_WINDOW = 0x00004022,
- * VMX_PREEMPTION_TIMER_VALUE = 0x0000482E,
- * GUEST_IA32_PERF_GLOBAL_CTRL = 0x00002808,
- * HOST_IA32_PERF_GLOBAL_CTRL = 0x00002c04,
- *
- * Currently unsupported in KVM:
- * GUEST_IA32_RTIT_CTL = 0x00002814,
- */
-#define EVMCS1_UNSUPPORTED_PINCTRL (PIN_BASED_POSTED_INTR | \
- PIN_BASED_VMX_PREEMPTION_TIMER)
-#define EVMCS1_UNSUPPORTED_2NDEXEC \
- (SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY | \
- SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES | \
- SECONDARY_EXEC_APIC_REGISTER_VIRT | \
- 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_LOAD_IA32_PERF_GLOBAL_CTRL)
-#define EVMCS1_UNSUPPORTED_VMENTRY_CTRL (VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL)
-#define EVMCS1_UNSUPPORTED_VMFUNC (VMX_VMFUNC_EPTP_SWITCHING)
-
#if IS_ENABLED(CONFIG_HYPERV)
static bool __read_mostly enlightened_vmcs = true;
module_param(enlightened_vmcs, bool, 0444);
-static inline void evmcs_write64(unsigned long field, u64 value)
-{
- u16 clean_field;
- int offset = get_evmcs_offset(field, &clean_field);
-
- if (offset < 0)
- return;
-
- *(u64 *)((char *)current_evmcs + offset) = value;
-
- current_evmcs->hv_clean_fields &= ~clean_field;
-}
-
-static inline void evmcs_write32(unsigned long field, u32 value)
-{
- u16 clean_field;
- int offset = get_evmcs_offset(field, &clean_field);
-
- if (offset < 0)
- return;
-
- *(u32 *)((char *)current_evmcs + offset) = value;
- current_evmcs->hv_clean_fields &= ~clean_field;
-}
-
-static inline void evmcs_write16(unsigned long field, u16 value)
-{
- u16 clean_field;
- int offset = get_evmcs_offset(field, &clean_field);
-
- if (offset < 0)
- return;
-
- *(u16 *)((char *)current_evmcs + offset) = value;
- current_evmcs->hv_clean_fields &= ~clean_field;
-}
-
-static inline u64 evmcs_read64(unsigned long field)
-{
- int offset = get_evmcs_offset(field, NULL);
-
- if (offset < 0)
- return 0;
-
- return *(u64 *)((char *)current_evmcs + offset);
-}
-
-static inline u32 evmcs_read32(unsigned long field)
-{
- int offset = get_evmcs_offset(field, NULL);
-
- if (offset < 0)
- return 0;
-
- return *(u32 *)((char *)current_evmcs + offset);
-}
-
-static inline u16 evmcs_read16(unsigned long field)
-{
- int offset = get_evmcs_offset(field, NULL);
-
- if (offset < 0)
- return 0;
-
- return *(u16 *)((char *)current_evmcs + offset);
-}
-
-static inline void evmcs_touch_msr_bitmap(void)
-{
- if (unlikely(!current_evmcs))
- return;
-
- if (current_evmcs->hv_enlightenments_control.msr_bitmap)
- current_evmcs->hv_clean_fields &=
- ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP;
-}
-
-static void evmcs_load(u64 phys_addr)
-{
- struct hv_vp_assist_page *vp_ap =
- hv_get_vp_assist_page(smp_processor_id());
-
- vp_ap->current_nested_vmcs = phys_addr;
- vp_ap->enlighten_vmentry = 1;
-}
-
-static void evmcs_sanitize_exec_ctrls(struct vmcs_config *vmcs_conf)
-{
- vmcs_conf->pin_based_exec_ctrl &= ~EVMCS1_UNSUPPORTED_PINCTRL;
- vmcs_conf->cpu_based_2nd_exec_ctrl &= ~EVMCS1_UNSUPPORTED_2NDEXEC;
-
- vmcs_conf->vmexit_ctrl &= ~EVMCS1_UNSUPPORTED_VMEXIT_CTRL;
- vmcs_conf->vmentry_ctrl &= ~EVMCS1_UNSUPPORTED_VMENTRY_CTRL;
-
-}
-
/* check_ept_pointer() should be under protection of ept_pointer_lock. */
static void check_ept_pointer_match(struct kvm *kvm)
{
spin_unlock(&to_kvm_vmx(kvm)->ept_pointer_lock);
return ret;
}
-#else /* !IS_ENABLED(CONFIG_HYPERV) */
-static inline void evmcs_write64(unsigned long field, u64 value) {}
-static inline void evmcs_write32(unsigned long field, u32 value) {}
-static inline void evmcs_write16(unsigned long field, u16 value) {}
-static inline u64 evmcs_read64(unsigned long field) { return 0; }
-static inline u32 evmcs_read32(unsigned long field) { return 0; }
-static inline u16 evmcs_read16(unsigned long field) { return 0; }
-static inline void evmcs_load(u64 phys_addr) {}
-static inline void evmcs_sanitize_exec_ctrls(struct vmcs_config *vmcs_conf) {}
-static inline void evmcs_touch_msr_bitmap(void) {}
#endif /* IS_ENABLED(CONFIG_HYPERV) */
-static int nested_enable_evmcs(struct kvm_vcpu *vcpu,
- uint16_t *vmcs_version)
-{
- struct vcpu_vmx *vmx = to_vmx(vcpu);
-
- /*
- * vmcs_version represents the range of supported Enlightened VMCS
- * versions: lower 8 bits is the minimal version, higher 8 bits is the
- * maximum supported version. KVM supports versions from 1 to
- * KVM_EVMCS_VERSION.
- */
- if (vmcs_version)
- *vmcs_version = (KVM_EVMCS_VERSION << 8) | 1;
-
- /* We don't support disabling the feature for simplicity. */
- if (vmx->nested.enlightened_vmcs_enabled)
- return 0;
-
- vmx->nested.enlightened_vmcs_enabled = true;
-
- vmx->nested.msrs.pinbased_ctls_high &= ~EVMCS1_UNSUPPORTED_PINCTRL;
- vmx->nested.msrs.entry_ctls_high &= ~EVMCS1_UNSUPPORTED_VMENTRY_CTRL;
- vmx->nested.msrs.exit_ctls_high &= ~EVMCS1_UNSUPPORTED_VMEXIT_CTRL;
- vmx->nested.msrs.secondary_ctls_high &= ~EVMCS1_UNSUPPORTED_2NDEXEC;
- vmx->nested.msrs.vmfunc_controls &= ~EVMCS1_UNSUPPORTED_VMFUNC;
-
- return 0;
-}
-
/*
* Comment's format: document - errata name - stepping - processor name.
* Refer from
projects / linux-2.6-microblaze.git / commitdiff