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KVM: nVMX: Set callbacks for nested functions during hardware setup

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...in nested-specific code so that they can eventually be moved out of
vmx.c, e.g. into nested.c.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2018-12-03 13:53:12 -08:00 committed by Paolo Bonzini
parent a3203381ca
commit e4027cfafd
1 changed files with 49 additions and 26 deletions
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75
arch/x86/kvm/vmx/vmx.c
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@ -7810,6 +7810,16 @@ static int handle_vmfunc(struct kvm_vcpu *vcpu)
return 1;
}
/*
* When nested=0, all VMX instruction VM Exits filter here. The handlers
* are overwritten by nested_vmx_setup() when nested=1.
*/
static int handle_vmx_instruction(struct kvm_vcpu *vcpu)
{
kvm_queue_exception(vcpu, UD_VECTOR);
return 1;
}
static int handle_encls(struct kvm_vcpu *vcpu)
{
/*
@ -7826,7 +7836,7 @@ static int handle_encls(struct kvm_vcpu *vcpu)
* may resume. Otherwise they set the kvm_run parameter to indicate what needs
* to be done to userspace and return 0.
*/
static int (*const kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu) = {
static int (*kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu) = {
[EXIT_REASON_EXCEPTION_NMI] = handle_exception,
[EXIT_REASON_EXTERNAL_INTERRUPT] = handle_external_interrupt,
[EXIT_REASON_TRIPLE_FAULT] = handle_triple_fault,
@ -7843,15 +7853,15 @@ static int (*const kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu) = {
[EXIT_REASON_INVLPG] = handle_invlpg,
[EXIT_REASON_RDPMC] = handle_rdpmc,
[EXIT_REASON_VMCALL] = handle_vmcall,
[EXIT_REASON_VMCLEAR] = handle_vmclear,
[EXIT_REASON_VMLAUNCH] = handle_vmlaunch,
[EXIT_REASON_VMPTRLD] = handle_vmptrld,
[EXIT_REASON_VMPTRST] = handle_vmptrst,
[EXIT_REASON_VMREAD] = handle_vmread,
[EXIT_REASON_VMRESUME] = handle_vmresume,
[EXIT_REASON_VMWRITE] = handle_vmwrite,
[EXIT_REASON_VMOFF] = handle_vmoff,
[EXIT_REASON_VMON] = handle_vmon,
[EXIT_REASON_VMCLEAR] = handle_vmx_instruction,
[EXIT_REASON_VMLAUNCH] = handle_vmx_instruction,
[EXIT_REASON_VMPTRLD] = handle_vmx_instruction,
[EXIT_REASON_VMPTRST] = handle_vmx_instruction,
[EXIT_REASON_VMREAD] = handle_vmx_instruction,
[EXIT_REASON_VMRESUME] = handle_vmx_instruction,
[EXIT_REASON_VMWRITE] = handle_vmx_instruction,
[EXIT_REASON_VMOFF] = handle_vmx_instruction,
[EXIT_REASON_VMON] = handle_vmx_instruction,
[EXIT_REASON_TPR_BELOW_THRESHOLD] = handle_tpr_below_threshold,
[EXIT_REASON_APIC_ACCESS] = handle_apic_access,
[EXIT_REASON_APIC_WRITE] = handle_apic_write,
@ -7868,15 +7878,15 @@ static int (*const kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu) = {
[EXIT_REASON_MWAIT_INSTRUCTION] = handle_mwait,
[EXIT_REASON_MONITOR_TRAP_FLAG] = handle_monitor_trap,
[EXIT_REASON_MONITOR_INSTRUCTION] = handle_monitor,
[EXIT_REASON_INVEPT] = handle_invept,
[EXIT_REASON_INVVPID] = handle_invvpid,
[EXIT_REASON_INVEPT] = handle_vmx_instruction,
[EXIT_REASON_INVVPID] = handle_vmx_instruction,
[EXIT_REASON_RDRAND] = handle_invalid_op,
[EXIT_REASON_RDSEED] = handle_invalid_op,
[EXIT_REASON_XSAVES] = handle_xsaves,
[EXIT_REASON_XRSTORS] = handle_xrstors,
[EXIT_REASON_PML_FULL] = handle_pml_full,
[EXIT_REASON_INVPCID] = handle_invpcid,
[EXIT_REASON_VMFUNC] = handle_vmfunc,
[EXIT_REASON_VMFUNC] = handle_vmx_instruction,
[EXIT_REASON_PREEMPTION_TIMER] = handle_preemption_timer,
[EXIT_REASON_ENCLS] = handle_encls,
};
@ -12978,7 +12988,7 @@ static __exit void nested_vmx_hardware_unsetup(void)
}
}
static __init int nested_vmx_hardware_setup(void)
static __init int nested_vmx_hardware_setup(int (*exit_handlers[])(struct kvm_vcpu *))
{
int i;
@ -12995,6 +13005,25 @@ static __init int nested_vmx_hardware_setup(void)
init_vmcs_shadow_fields();
}
exit_handlers[EXIT_REASON_VMCLEAR] = handle_vmclear,
exit_handlers[EXIT_REASON_VMLAUNCH] = handle_vmlaunch,
exit_handlers[EXIT_REASON_VMPTRLD] = handle_vmptrld,
exit_handlers[EXIT_REASON_VMPTRST] = handle_vmptrst,
exit_handlers[EXIT_REASON_VMREAD] = handle_vmread,
exit_handlers[EXIT_REASON_VMRESUME] = handle_vmresume,
exit_handlers[EXIT_REASON_VMWRITE] = handle_vmwrite,
exit_handlers[EXIT_REASON_VMOFF] = handle_vmoff,
exit_handlers[EXIT_REASON_VMON] = handle_vmon,
exit_handlers[EXIT_REASON_INVEPT] = handle_invept,
exit_handlers[EXIT_REASON_INVVPID] = handle_invvpid,
exit_handlers[EXIT_REASON_VMFUNC] = handle_vmfunc,
kvm_x86_ops->check_nested_events = vmx_check_nested_events;
kvm_x86_ops->get_nested_state = vmx_get_nested_state;
kvm_x86_ops->set_nested_state = vmx_set_nested_state;
kvm_x86_ops->get_vmcs12_pages = nested_get_vmcs12_pages,
kvm_x86_ops->nested_enable_evmcs = nested_enable_evmcs;
return 0;
}
@ -13090,11 +13119,6 @@ static __init int hardware_setup(void)
else
kvm_disable_tdp();
if (!nested) {
kvm_x86_ops->get_nested_state = NULL;
kvm_x86_ops->set_nested_state = NULL;
}
/*
* Only enable PML when hardware supports PML feature, and both EPT
* and EPT A/D bit features are enabled -- PML depends on them to work.
@ -13133,7 +13157,7 @@ static __init int hardware_setup(void)
kvm_mce_cap_supported |= MCG_LMCE_P;
if (nested) {
r = nested_vmx_hardware_setup();
r = nested_vmx_hardware_setup(kvm_vmx_exit_handlers);
if (r)
return r;
}
@ -13264,7 +13288,6 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = {
.xsaves_supported = vmx_xsaves_supported,
.umip_emulated = vmx_umip_emulated,
.check_nested_events = vmx_check_nested_events,
.request_immediate_exit = vmx_request_immediate_exit,
.sched_in = vmx_sched_in,
@ -13289,16 +13312,16 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = {
.setup_mce = vmx_setup_mce,
.get_nested_state = vmx_get_nested_state,
.set_nested_state = vmx_set_nested_state,
.get_vmcs12_pages = nested_get_vmcs12_pages,
.smi_allowed = vmx_smi_allowed,
.pre_enter_smm = vmx_pre_enter_smm,
.pre_leave_smm = vmx_pre_leave_smm,
.enable_smi_window = enable_smi_window,
.nested_enable_evmcs = nested_enable_evmcs,
.check_nested_events = NULL,
.get_nested_state = NULL,
.set_nested_state = NULL,
.get_vmcs12_pages = NULL,
.nested_enable_evmcs = NULL,
};
static void vmx_cleanup_l1d_flush(void)