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KVM: nVMX: Support several new fields in eVMCSv1

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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 <mlevitsk@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20220830133737.1539624-11-vkuznets@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Vitaly Kuznetsov 2022-08-30 15:37:14 +02:00 committed by Paolo Bonzini
parent b19e4ff5e5
commit c9d31986e8
1 changed files with 31 additions and 0 deletions
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31
arch/x86/kvm/vmx/nested.c
View File

@ -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;