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KVM: nVMX: add enlightened VMCS state

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Adds hv_evmcs pointer and implement copy_enlightened_to_vmcs12() and
copy_enlightened_to_vmcs12().

prepare_vmcs02()/prepare_vmcs02_full() separation is not valid for
Enlightened VMCS, do full sync for now.

Suggested-by: Ladi Prosek <lprosek@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Vitaly Kuznetsov 2018-10-16 18:50:02 +02:00 committed by Paolo Bonzini
parent 57b119da35
commit 945679e301
1 changed files with 423 additions and 17 deletions
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440
arch/x86/kvm/vmx.c
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@ -831,10 +831,10 @@ struct nested_vmx {
*/
struct vmcs12 *cached_shadow_vmcs12;
/*
* Indicates if the shadow vmcs must be updated with the
* data hold by vmcs12
* Indicates if the shadow vmcs or enlightened vmcs must be updated
* with the data held by struct vmcs12.
*/
bool sync_shadow_vmcs;
bool need_vmcs12_sync;
bool dirty_vmcs12;
/*
@ -888,6 +888,8 @@ struct nested_vmx {
/* in guest mode on SMM entry? */
bool guest_mode;
} smm;
struct hv_enlightened_vmcs *hv_evmcs;
};
#define POSTED_INTR_ON 0
@ -8450,7 +8452,7 @@ static inline void nested_release_vmcs12(struct kvm_vcpu *vcpu)
/* copy to memory all shadowed fields in case
they were modified */
copy_shadow_to_vmcs12(vmx);
vmx->nested.sync_shadow_vmcs = false;
vmx->nested.need_vmcs12_sync = false;
vmx_disable_shadow_vmcs(vmx);
}
vmx->nested.posted_intr_nv = -1;
@ -8630,6 +8632,393 @@ static inline int vmcs12_write_any(struct vmcs12 *vmcs12,
}
static int copy_enlightened_to_vmcs12(struct vcpu_vmx *vmx)
{
struct vmcs12 *vmcs12 = vmx->nested.cached_vmcs12;
struct hv_enlightened_vmcs *evmcs = vmx->nested.hv_evmcs;
/* HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE */
vmcs12->tpr_threshold = evmcs->tpr_threshold;
vmcs12->guest_rip = evmcs->guest_rip;
if (unlikely(!(evmcs->hv_clean_fields &
HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC))) {
vmcs12->guest_rsp = evmcs->guest_rsp;
vmcs12->guest_rflags = evmcs->guest_rflags;
vmcs12->guest_interruptibility_info =
evmcs->guest_interruptibility_info;
}
if (unlikely(!(evmcs->hv_clean_fields &
HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_PROC))) {
vmcs12->cpu_based_vm_exec_control =
evmcs->cpu_based_vm_exec_control;
}
if (unlikely(!(evmcs->hv_clean_fields &
HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_PROC))) {
vmcs12->exception_bitmap = evmcs->exception_bitmap;
}
if (unlikely(!(evmcs->hv_clean_fields &
HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_ENTRY))) {
vmcs12->vm_entry_controls = evmcs->vm_entry_controls;
}
if (unlikely(!(evmcs->hv_clean_fields &
HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT))) {
vmcs12->vm_entry_intr_info_field =
evmcs->vm_entry_intr_info_field;
vmcs12->vm_entry_exception_error_code =
evmcs->vm_entry_exception_error_code;
vmcs12->vm_entry_instruction_len =
evmcs->vm_entry_instruction_len;
}
if (unlikely(!(evmcs->hv_clean_fields &
HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1))) {
vmcs12->host_ia32_pat = evmcs->host_ia32_pat;
vmcs12->host_ia32_efer = evmcs->host_ia32_efer;
vmcs12->host_cr0 = evmcs->host_cr0;
vmcs12->host_cr3 = evmcs->host_cr3;
vmcs12->host_cr4 = evmcs->host_cr4;
vmcs12->host_ia32_sysenter_esp = evmcs->host_ia32_sysenter_esp;
vmcs12->host_ia32_sysenter_eip = evmcs->host_ia32_sysenter_eip;
vmcs12->host_rip = evmcs->host_rip;
vmcs12->host_ia32_sysenter_cs = evmcs->host_ia32_sysenter_cs;
vmcs12->host_es_selector = evmcs->host_es_selector;
vmcs12->host_cs_selector = evmcs->host_cs_selector;
vmcs12->host_ss_selector = evmcs->host_ss_selector;
vmcs12->host_ds_selector = evmcs->host_ds_selector;
vmcs12->host_fs_selector = evmcs->host_fs_selector;
vmcs12->host_gs_selector = evmcs->host_gs_selector;
vmcs12->host_tr_selector = evmcs->host_tr_selector;
}
if (unlikely(!(evmcs->hv_clean_fields &
HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1))) {
vmcs12->pin_based_vm_exec_control =
evmcs->pin_based_vm_exec_control;
vmcs12->vm_exit_controls = evmcs->vm_exit_controls;
vmcs12->secondary_vm_exec_control =
evmcs->secondary_vm_exec_control;
}
if (unlikely(!(evmcs->hv_clean_fields &
HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP))) {
vmcs12->io_bitmap_a = evmcs->io_bitmap_a;
vmcs12->io_bitmap_b = evmcs->io_bitmap_b;
}
if (unlikely(!(evmcs->hv_clean_fields &
HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP))) {
vmcs12->msr_bitmap = evmcs->msr_bitmap;
}
if (unlikely(!(evmcs->hv_clean_fields &
HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2))) {
vmcs12->guest_es_base = evmcs->guest_es_base;
vmcs12->guest_cs_base = evmcs->guest_cs_base;
vmcs12->guest_ss_base = evmcs->guest_ss_base;
vmcs12->guest_ds_base = evmcs->guest_ds_base;
vmcs12->guest_fs_base = evmcs->guest_fs_base;
vmcs12->guest_gs_base = evmcs->guest_gs_base;
vmcs12->guest_ldtr_base = evmcs->guest_ldtr_base;
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_es_limit = evmcs->guest_es_limit;
vmcs12->guest_cs_limit = evmcs->guest_cs_limit;
vmcs12->guest_ss_limit = evmcs->guest_ss_limit;
vmcs12->guest_ds_limit = evmcs->guest_ds_limit;
vmcs12->guest_fs_limit = evmcs->guest_fs_limit;
vmcs12->guest_gs_limit = evmcs->guest_gs_limit;
vmcs12->guest_ldtr_limit = evmcs->guest_ldtr_limit;
vmcs12->guest_tr_limit = evmcs->guest_tr_limit;
vmcs12->guest_gdtr_limit = evmcs->guest_gdtr_limit;
vmcs12->guest_idtr_limit = evmcs->guest_idtr_limit;
vmcs12->guest_es_ar_bytes = evmcs->guest_es_ar_bytes;
vmcs12->guest_cs_ar_bytes = evmcs->guest_cs_ar_bytes;
vmcs12->guest_ss_ar_bytes = evmcs->guest_ss_ar_bytes;
vmcs12->guest_ds_ar_bytes = evmcs->guest_ds_ar_bytes;
vmcs12->guest_fs_ar_bytes = evmcs->guest_fs_ar_bytes;
vmcs12->guest_gs_ar_bytes = evmcs->guest_gs_ar_bytes;
vmcs12->guest_ldtr_ar_bytes = evmcs->guest_ldtr_ar_bytes;
vmcs12->guest_tr_ar_bytes = evmcs->guest_tr_ar_bytes;
vmcs12->guest_es_selector = evmcs->guest_es_selector;
vmcs12->guest_cs_selector = evmcs->guest_cs_selector;
vmcs12->guest_ss_selector = evmcs->guest_ss_selector;
vmcs12->guest_ds_selector = evmcs->guest_ds_selector;
vmcs12->guest_fs_selector = evmcs->guest_fs_selector;
vmcs12->guest_gs_selector = evmcs->guest_gs_selector;
vmcs12->guest_ldtr_selector = evmcs->guest_ldtr_selector;
vmcs12->guest_tr_selector = evmcs->guest_tr_selector;
}
if (unlikely(!(evmcs->hv_clean_fields &
HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2))) {
vmcs12->tsc_offset = evmcs->tsc_offset;
vmcs12->virtual_apic_page_addr = evmcs->virtual_apic_page_addr;
vmcs12->xss_exit_bitmap = evmcs->xss_exit_bitmap;
}
if (unlikely(!(evmcs->hv_clean_fields &
HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR))) {
vmcs12->cr0_guest_host_mask = evmcs->cr0_guest_host_mask;
vmcs12->cr4_guest_host_mask = evmcs->cr4_guest_host_mask;
vmcs12->cr0_read_shadow = evmcs->cr0_read_shadow;
vmcs12->cr4_read_shadow = evmcs->cr4_read_shadow;
vmcs12->guest_cr0 = evmcs->guest_cr0;
vmcs12->guest_cr3 = evmcs->guest_cr3;
vmcs12->guest_cr4 = evmcs->guest_cr4;
vmcs12->guest_dr7 = evmcs->guest_dr7;
}
if (unlikely(!(evmcs->hv_clean_fields &
HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER))) {
vmcs12->host_fs_base = evmcs->host_fs_base;
vmcs12->host_gs_base = evmcs->host_gs_base;
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_rsp = evmcs->host_rsp;
}
if (unlikely(!(evmcs->hv_clean_fields &
HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT))) {
vmcs12->ept_pointer = evmcs->ept_pointer;
vmcs12->virtual_processor_id = evmcs->virtual_processor_id;
}
if (unlikely(!(evmcs->hv_clean_fields &
HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1))) {
vmcs12->vmcs_link_pointer = evmcs->vmcs_link_pointer;
vmcs12->guest_ia32_debugctl = evmcs->guest_ia32_debugctl;
vmcs12->guest_ia32_pat = evmcs->guest_ia32_pat;
vmcs12->guest_ia32_efer = evmcs->guest_ia32_efer;
vmcs12->guest_pdptr0 = evmcs->guest_pdptr0;
vmcs12->guest_pdptr1 = evmcs->guest_pdptr1;
vmcs12->guest_pdptr2 = evmcs->guest_pdptr2;
vmcs12->guest_pdptr3 = evmcs->guest_pdptr3;
vmcs12->guest_pending_dbg_exceptions =
evmcs->guest_pending_dbg_exceptions;
vmcs12->guest_sysenter_esp = evmcs->guest_sysenter_esp;
vmcs12->guest_sysenter_eip = evmcs->guest_sysenter_eip;
vmcs12->guest_bndcfgs = evmcs->guest_bndcfgs;
vmcs12->guest_activity_state = evmcs->guest_activity_state;
vmcs12->guest_sysenter_cs = evmcs->guest_sysenter_cs;
}
/*
* Not used?
* vmcs12->vm_exit_msr_store_addr = evmcs->vm_exit_msr_store_addr;
* vmcs12->vm_exit_msr_load_addr = evmcs->vm_exit_msr_load_addr;
* vmcs12->vm_entry_msr_load_addr = evmcs->vm_entry_msr_load_addr;
* vmcs12->cr3_target_value0 = evmcs->cr3_target_value0;
* vmcs12->cr3_target_value1 = evmcs->cr3_target_value1;
* vmcs12->cr3_target_value2 = evmcs->cr3_target_value2;
* vmcs12->cr3_target_value3 = evmcs->cr3_target_value3;
* vmcs12->page_fault_error_code_mask =
* evmcs->page_fault_error_code_mask;
* vmcs12->page_fault_error_code_match =
* evmcs->page_fault_error_code_match;
* vmcs12->cr3_target_count = evmcs->cr3_target_count;
* vmcs12->vm_exit_msr_store_count = evmcs->vm_exit_msr_store_count;
* vmcs12->vm_exit_msr_load_count = evmcs->vm_exit_msr_load_count;
* vmcs12->vm_entry_msr_load_count = evmcs->vm_entry_msr_load_count;
*/
/*
* Read only fields:
* vmcs12->guest_physical_address = evmcs->guest_physical_address;
* vmcs12->vm_instruction_error = evmcs->vm_instruction_error;
* vmcs12->vm_exit_reason = evmcs->vm_exit_reason;
* vmcs12->vm_exit_intr_info = evmcs->vm_exit_intr_info;
* 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->vm_exit_instruction_len = evmcs->vm_exit_instruction_len;
* vmcs12->vmx_instruction_info = evmcs->vmx_instruction_info;
* vmcs12->exit_qualification = evmcs->exit_qualification;
* vmcs12->guest_linear_address = evmcs->guest_linear_address;
*
* Not present in struct vmcs12:
* vmcs12->exit_io_instruction_ecx = evmcs->exit_io_instruction_ecx;
* vmcs12->exit_io_instruction_esi = evmcs->exit_io_instruction_esi;
* vmcs12->exit_io_instruction_edi = evmcs->exit_io_instruction_edi;
* vmcs12->exit_io_instruction_eip = evmcs->exit_io_instruction_eip;
*/
return 0;
}
static int copy_vmcs12_to_enlightened(struct vcpu_vmx *vmx)
{
struct vmcs12 *vmcs12 = vmx->nested.cached_vmcs12;
struct hv_enlightened_vmcs *evmcs = vmx->nested.hv_evmcs;
/*
* Should not be changed by KVM:
*
* evmcs->host_es_selector = vmcs12->host_es_selector;
* evmcs->host_cs_selector = vmcs12->host_cs_selector;
* evmcs->host_ss_selector = vmcs12->host_ss_selector;
* evmcs->host_ds_selector = vmcs12->host_ds_selector;
* evmcs->host_fs_selector = vmcs12->host_fs_selector;
* evmcs->host_gs_selector = vmcs12->host_gs_selector;
* evmcs->host_tr_selector = vmcs12->host_tr_selector;
* evmcs->host_ia32_pat = vmcs12->host_ia32_pat;
* evmcs->host_ia32_efer = vmcs12->host_ia32_efer;
* evmcs->host_cr0 = vmcs12->host_cr0;
* evmcs->host_cr3 = vmcs12->host_cr3;
* evmcs->host_cr4 = vmcs12->host_cr4;
* evmcs->host_ia32_sysenter_esp = vmcs12->host_ia32_sysenter_esp;
* evmcs->host_ia32_sysenter_eip = vmcs12->host_ia32_sysenter_eip;
* evmcs->host_rip = vmcs12->host_rip;
* evmcs->host_ia32_sysenter_cs = vmcs12->host_ia32_sysenter_cs;
* evmcs->host_fs_base = vmcs12->host_fs_base;
* evmcs->host_gs_base = vmcs12->host_gs_base;
* evmcs->host_tr_base = vmcs12->host_tr_base;
* evmcs->host_gdtr_base = vmcs12->host_gdtr_base;
* evmcs->host_idtr_base = vmcs12->host_idtr_base;
* evmcs->host_rsp = vmcs12->host_rsp;
* sync_vmcs12() doesn't read these:
* evmcs->io_bitmap_a = vmcs12->io_bitmap_a;
* evmcs->io_bitmap_b = vmcs12->io_bitmap_b;
* evmcs->msr_bitmap = vmcs12->msr_bitmap;
* evmcs->ept_pointer = vmcs12->ept_pointer;
* evmcs->xss_exit_bitmap = vmcs12->xss_exit_bitmap;
* evmcs->vm_exit_msr_store_addr = vmcs12->vm_exit_msr_store_addr;
* evmcs->vm_exit_msr_load_addr = vmcs12->vm_exit_msr_load_addr;
* evmcs->vm_entry_msr_load_addr = vmcs12->vm_entry_msr_load_addr;
* evmcs->cr3_target_value0 = vmcs12->cr3_target_value0;
* evmcs->cr3_target_value1 = vmcs12->cr3_target_value1;
* evmcs->cr3_target_value2 = vmcs12->cr3_target_value2;
* evmcs->cr3_target_value3 = vmcs12->cr3_target_value3;
* evmcs->tpr_threshold = vmcs12->tpr_threshold;
* evmcs->virtual_processor_id = vmcs12->virtual_processor_id;
* evmcs->exception_bitmap = vmcs12->exception_bitmap;
* evmcs->vmcs_link_pointer = vmcs12->vmcs_link_pointer;
* evmcs->pin_based_vm_exec_control = vmcs12->pin_based_vm_exec_control;
* evmcs->vm_exit_controls = vmcs12->vm_exit_controls;
* evmcs->secondary_vm_exec_control = vmcs12->secondary_vm_exec_control;
* evmcs->page_fault_error_code_mask =
* vmcs12->page_fault_error_code_mask;
* evmcs->page_fault_error_code_match =
* vmcs12->page_fault_error_code_match;
* evmcs->cr3_target_count = vmcs12->cr3_target_count;
* evmcs->virtual_apic_page_addr = vmcs12->virtual_apic_page_addr;
* evmcs->tsc_offset = vmcs12->tsc_offset;
* evmcs->guest_ia32_debugctl = vmcs12->guest_ia32_debugctl;
* evmcs->cr0_guest_host_mask = vmcs12->cr0_guest_host_mask;
* evmcs->cr4_guest_host_mask = vmcs12->cr4_guest_host_mask;
* evmcs->cr0_read_shadow = vmcs12->cr0_read_shadow;
* evmcs->cr4_read_shadow = vmcs12->cr4_read_shadow;
* evmcs->vm_exit_msr_store_count = vmcs12->vm_exit_msr_store_count;
* evmcs->vm_exit_msr_load_count = vmcs12->vm_exit_msr_load_count;
* evmcs->vm_entry_msr_load_count = vmcs12->vm_entry_msr_load_count;
*
* Not present in struct vmcs12:
* evmcs->exit_io_instruction_ecx = vmcs12->exit_io_instruction_ecx;
* evmcs->exit_io_instruction_esi = vmcs12->exit_io_instruction_esi;
* evmcs->exit_io_instruction_edi = vmcs12->exit_io_instruction_edi;
* evmcs->exit_io_instruction_eip = vmcs12->exit_io_instruction_eip;
*/
evmcs->guest_es_selector = vmcs12->guest_es_selector;
evmcs->guest_cs_selector = vmcs12->guest_cs_selector;
evmcs->guest_ss_selector = vmcs12->guest_ss_selector;
evmcs->guest_ds_selector = vmcs12->guest_ds_selector;
evmcs->guest_fs_selector = vmcs12->guest_fs_selector;
evmcs->guest_gs_selector = vmcs12->guest_gs_selector;
evmcs->guest_ldtr_selector = vmcs12->guest_ldtr_selector;
evmcs->guest_tr_selector = vmcs12->guest_tr_selector;
evmcs->guest_es_limit = vmcs12->guest_es_limit;
evmcs->guest_cs_limit = vmcs12->guest_cs_limit;
evmcs->guest_ss_limit = vmcs12->guest_ss_limit;
evmcs->guest_ds_limit = vmcs12->guest_ds_limit;
evmcs->guest_fs_limit = vmcs12->guest_fs_limit;
evmcs->guest_gs_limit = vmcs12->guest_gs_limit;
evmcs->guest_ldtr_limit = vmcs12->guest_ldtr_limit;
evmcs->guest_tr_limit = vmcs12->guest_tr_limit;
evmcs->guest_gdtr_limit = vmcs12->guest_gdtr_limit;
evmcs->guest_idtr_limit = vmcs12->guest_idtr_limit;
evmcs->guest_es_ar_bytes = vmcs12->guest_es_ar_bytes;
evmcs->guest_cs_ar_bytes = vmcs12->guest_cs_ar_bytes;
evmcs->guest_ss_ar_bytes = vmcs12->guest_ss_ar_bytes;
evmcs->guest_ds_ar_bytes = vmcs12->guest_ds_ar_bytes;
evmcs->guest_fs_ar_bytes = vmcs12->guest_fs_ar_bytes;
evmcs->guest_gs_ar_bytes = vmcs12->guest_gs_ar_bytes;
evmcs->guest_ldtr_ar_bytes = vmcs12->guest_ldtr_ar_bytes;
evmcs->guest_tr_ar_bytes = vmcs12->guest_tr_ar_bytes;
evmcs->guest_es_base = vmcs12->guest_es_base;
evmcs->guest_cs_base = vmcs12->guest_cs_base;
evmcs->guest_ss_base = vmcs12->guest_ss_base;
evmcs->guest_ds_base = vmcs12->guest_ds_base;
evmcs->guest_fs_base = vmcs12->guest_fs_base;
evmcs->guest_gs_base = vmcs12->guest_gs_base;
evmcs->guest_ldtr_base = vmcs12->guest_ldtr_base;
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_pat = vmcs12->guest_ia32_pat;
evmcs->guest_ia32_efer = vmcs12->guest_ia32_efer;
evmcs->guest_pdptr0 = vmcs12->guest_pdptr0;
evmcs->guest_pdptr1 = vmcs12->guest_pdptr1;
evmcs->guest_pdptr2 = vmcs12->guest_pdptr2;
evmcs->guest_pdptr3 = vmcs12->guest_pdptr3;
evmcs->guest_pending_dbg_exceptions =
vmcs12->guest_pending_dbg_exceptions;
evmcs->guest_sysenter_esp = vmcs12->guest_sysenter_esp;
evmcs->guest_sysenter_eip = vmcs12->guest_sysenter_eip;
evmcs->guest_activity_state = vmcs12->guest_activity_state;
evmcs->guest_sysenter_cs = vmcs12->guest_sysenter_cs;
evmcs->guest_cr0 = vmcs12->guest_cr0;
evmcs->guest_cr3 = vmcs12->guest_cr3;
evmcs->guest_cr4 = vmcs12->guest_cr4;
evmcs->guest_dr7 = vmcs12->guest_dr7;
evmcs->guest_physical_address = vmcs12->guest_physical_address;
evmcs->vm_instruction_error = vmcs12->vm_instruction_error;
evmcs->vm_exit_reason = vmcs12->vm_exit_reason;
evmcs->vm_exit_intr_info = vmcs12->vm_exit_intr_info;
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->vm_exit_instruction_len = vmcs12->vm_exit_instruction_len;
evmcs->vmx_instruction_info = vmcs12->vmx_instruction_info;
evmcs->exit_qualification = vmcs12->exit_qualification;
evmcs->guest_linear_address = vmcs12->guest_linear_address;
evmcs->guest_rsp = vmcs12->guest_rsp;
evmcs->guest_rflags = vmcs12->guest_rflags;
evmcs->guest_interruptibility_info =
vmcs12->guest_interruptibility_info;
evmcs->cpu_based_vm_exec_control = vmcs12->cpu_based_vm_exec_control;
evmcs->vm_entry_controls = vmcs12->vm_entry_controls;
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->vm_entry_instruction_len = vmcs12->vm_entry_instruction_len;
evmcs->guest_rip = vmcs12->guest_rip;
evmcs->guest_bndcfgs = vmcs12->guest_bndcfgs;
return 0;
}
/*
* Copy the writable VMCS shadow fields back to the VMCS12, in case
* they have been modified by the L1 guest. Note that the "read-only"
@ -8854,7 +9243,7 @@ static void set_current_vmptr(struct vcpu_vmx *vmx, gpa_t vmptr)
SECONDARY_EXEC_SHADOW_VMCS);
vmcs_write64(VMCS_LINK_POINTER,
__pa(vmx->vmcs01.shadow_vmcs));
vmx->nested.sync_shadow_vmcs = true;
vmx->nested.need_vmcs12_sync = true;
}
vmx->nested.dirty_vmcs12 = true;
}
@ -10659,9 +11048,16 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
vmcs_write32(PLE_WINDOW, vmx->ple_window);
}
if (vmx->nested.sync_shadow_vmcs) {
copy_vmcs12_to_shadow(vmx);
vmx->nested.sync_shadow_vmcs = false;
if (vmx->nested.need_vmcs12_sync) {
if (vmx->nested.hv_evmcs) {
copy_vmcs12_to_enlightened(vmx);
/* All fields are clean */
vmx->nested.hv_evmcs->hv_clean_fields |=
HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL;
} else {
copy_vmcs12_to_shadow(vmx);
}
vmx->nested.need_vmcs12_sync = false;
}
if (test_bit(VCPU_REGS_RSP, (unsigned long *)&vcpu->arch.regs_dirty))
@ -12037,7 +12433,7 @@ static void prepare_vmcs02_early(struct vcpu_vmx *vmx, struct vmcs12 *vmcs12)
u32 exec_control, vmcs12_exec_ctrl;
u64 guest_efer = nested_vmx_calc_efer(vmx, vmcs12);
if (vmx->nested.dirty_vmcs12)
if (vmx->nested.dirty_vmcs12 || vmx->nested.hv_evmcs)
prepare_vmcs02_early_full(vmx, vmcs12);
/*
@ -12312,7 +12708,7 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
if (vmx->nested.dirty_vmcs12) {
if (vmx->nested.dirty_vmcs12 || vmx->nested.hv_evmcs) {
prepare_vmcs02_full(vmx, vmcs12);
vmx->nested.dirty_vmcs12 = false;
}
@ -12899,8 +13295,8 @@ static int nested_vmx_enter_non_root_mode(struct kvm_vcpu *vcpu,
load_vmcs12_host_state(vcpu, vmcs12);
vmcs12->vm_exit_reason = exit_reason | VMX_EXIT_REASONS_FAILED_VMENTRY;
vmcs12->exit_qualification = exit_qual;
if (enable_shadow_vmcs)
vmx->nested.sync_shadow_vmcs = true;
if (enable_shadow_vmcs || vmx->nested.hv_evmcs)
vmx->nested.need_vmcs12_sync = true;
return 1;
}
@ -12932,8 +13328,13 @@ static int nested_vmx_run(struct kvm_vcpu *vcpu, bool launch)
if (vmcs12->hdr.shadow_vmcs)
return nested_vmx_failInvalid(vcpu);
if (enable_shadow_vmcs)
if (vmx->nested.hv_evmcs) {
copy_enlightened_to_vmcs12(vmx);
/* Enlightened VMCS doesn't have launch state */
vmcs12->launch_state = !launch;
} else if (enable_shadow_vmcs) {
copy_shadow_to_vmcs12(vmx);
}
/*
* The nested entry process starts with enforcing various prerequisites
@ -13690,8 +14091,8 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
*/
kvm_make_request(KVM_REQ_APIC_PAGE_RELOAD, vcpu);
if (enable_shadow_vmcs && exit_reason != -1)
vmx->nested.sync_shadow_vmcs = true;
if ((exit_reason != -1) && (enable_shadow_vmcs || vmx->nested.hv_evmcs))
vmx->nested.need_vmcs12_sync = true;
/* in case we halted in L2 */
vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
@ -14216,6 +14617,11 @@ static int vmx_get_nested_state(struct kvm_vcpu *vcpu,
vmx = to_vmx(vcpu);
vmcs12 = get_vmcs12(vcpu);
/* FIXME: Enlightened VMCS is currently unsupported */
if (vmx->nested.hv_evmcs)
return -ENOTSUPP;
if (nested_vmx_allowed(vcpu) &&
(vmx->nested.vmxon || vmx->nested.smm.vmxon)) {
kvm_state.vmx.vmxon_pa = vmx->nested.vmxon_ptr;
@ -14257,12 +14663,12 @@ static int vmx_get_nested_state(struct kvm_vcpu *vcpu,
* When running L2, the authoritative vmcs12 state is in the
* vmcs02. When running L1, the authoritative vmcs12 state is
* in the shadow vmcs linked to vmcs01, unless
* sync_shadow_vmcs is set, in which case, the authoritative
* need_vmcs12_sync is set, in which case, the authoritative
* vmcs12 state is in the vmcs12 already.
*/
if (is_guest_mode(vcpu))
sync_vmcs12(vcpu, vmcs12);
else if (enable_shadow_vmcs && !vmx->nested.sync_shadow_vmcs)
else if (enable_shadow_vmcs && !vmx->nested.need_vmcs12_sync)
copy_shadow_to_vmcs12(vmx);
if (copy_to_user(user_kvm_nested_state->data, vmcs12, sizeof(*vmcs12)))