KVM: nVMX: Support several new fields in eVMCSv1

Enlightened VMCS v1 definition was updated with new fields, add support for them for Hyper-V on KVM. Note: SSP, CET and Guest LBR features are not supported by KVM yet and 'struct vmcs12' has no corresponding fields. Reviewed-by: Maxim Levitsky <[email protected]> Signed-off-by: Vitaly Kuznetsov <[email protected]> Signed-off-by: Sean Christopherson <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Paolo Bonzini <[email protected]>
fracktal · Sep 26, 2022 · c9d3198 · c9d3198
1 parent b19e4ff
commit c9d3198
Showing 1 changed file with 31 additions and 0 deletions.
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
@@ -1607,6 +1607,10 @@ static void copy_enlightened_to_vmcs12(struct vcpu_vmx *vmx, u32 hv_clean_fields
 		vmcs12->guest_rflags = evmcs->guest_rflags;
 		vmcs12->guest_interruptibility_info =
 			evmcs->guest_interruptibility_info;
+		/*
+		 * Not present in struct vmcs12:
+		 * vmcs12->guest_ssp = evmcs->guest_ssp;
+		 */
 	}
 
 	if (unlikely(!(hv_clean_fields &
@@ -1653,6 +1657,13 @@ static void copy_enlightened_to_vmcs12(struct vcpu_vmx *vmx, u32 hv_clean_fields
 		vmcs12->host_fs_selector = evmcs->host_fs_selector;
 		vmcs12->host_gs_selector = evmcs->host_gs_selector;
 		vmcs12->host_tr_selector = evmcs->host_tr_selector;
+		vmcs12->host_ia32_perf_global_ctrl = evmcs->host_ia32_perf_global_ctrl;
+		/*
+		 * Not present in struct vmcs12:
+		 * vmcs12->host_ia32_s_cet = evmcs->host_ia32_s_cet;
+		 * vmcs12->host_ssp = evmcs->host_ssp;
+		 * vmcs12->host_ia32_int_ssp_table_addr = evmcs->host_ia32_int_ssp_table_addr;
+		 */
 	}
 
 	if (unlikely(!(hv_clean_fields &
@@ -1720,6 +1731,8 @@ static void copy_enlightened_to_vmcs12(struct vcpu_vmx *vmx, u32 hv_clean_fields
 		vmcs12->tsc_offset = evmcs->tsc_offset;
 		vmcs12->virtual_apic_page_addr = evmcs->virtual_apic_page_addr;
 		vmcs12->xss_exit_bitmap = evmcs->xss_exit_bitmap;
+		vmcs12->encls_exiting_bitmap = evmcs->encls_exiting_bitmap;
+		vmcs12->tsc_multiplier = evmcs->tsc_multiplier;
 	}
 
 	if (unlikely(!(hv_clean_fields &
@@ -1767,6 +1780,13 @@ static void copy_enlightened_to_vmcs12(struct vcpu_vmx *vmx, u32 hv_clean_fields
 		vmcs12->guest_bndcfgs = evmcs->guest_bndcfgs;
 		vmcs12->guest_activity_state = evmcs->guest_activity_state;
 		vmcs12->guest_sysenter_cs = evmcs->guest_sysenter_cs;
+		vmcs12->guest_ia32_perf_global_ctrl = evmcs->guest_ia32_perf_global_ctrl;
+		/*
+		 * Not present in struct vmcs12:
+		 * vmcs12->guest_ia32_s_cet = evmcs->guest_ia32_s_cet;
+		 * vmcs12->guest_ia32_lbr_ctl = evmcs->guest_ia32_lbr_ctl;
+		 * vmcs12->guest_ia32_int_ssp_table_addr = evmcs->guest_ia32_int_ssp_table_addr;
+		 */
 	}
 
 	/*
@@ -1869,12 +1889,23 @@ static void copy_vmcs12_to_enlightened(struct vcpu_vmx *vmx)
 	 * 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;
+	 * evmcs->guest_ia32_perf_global_ctrl = vmcs12->guest_ia32_perf_global_ctrl;
+	 * evmcs->host_ia32_perf_global_ctrl = vmcs12->host_ia32_perf_global_ctrl;
+	 * evmcs->encls_exiting_bitmap = vmcs12->encls_exiting_bitmap;
+	 * evmcs->tsc_multiplier = vmcs12->tsc_multiplier;
 	 *
 	 * 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->host_ia32_s_cet = vmcs12->host_ia32_s_cet;
+	 * evmcs->host_ssp = vmcs12->host_ssp;
+	 * evmcs->host_ia32_int_ssp_table_addr = vmcs12->host_ia32_int_ssp_table_addr;
+	 * evmcs->guest_ia32_s_cet = vmcs12->guest_ia32_s_cet;
+	 * evmcs->guest_ia32_lbr_ctl = vmcs12->guest_ia32_lbr_ctl;
+	 * evmcs->guest_ia32_int_ssp_table_addr = vmcs12->guest_ia32_int_ssp_table_addr;
+	 * evmcs->guest_ssp = vmcs12->guest_ssp;
 	 */
 
 	evmcs->guest_es_selector = vmcs12->guest_es_selector;