c98842b26c
There's a number of 'vmx->nested.hv_evmcs' accesses in nested.c, introduce 'nested_vmx_evmcs()' accessor to hide them all in !CONFIG_KVM_HYPERV case. No functional change intended. Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Tested-by: Jeremi Piotrowski <jpiotrowski@linux.microsoft.com> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Link: https://lore.kernel.org/r/20231205103630.1391318-15-vkuznets@redhat.com Signed-off-by: Sean Christopherson <seanjc@google.com>
91 lines
2.1 KiB
C
91 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __KVM_X86_VMX_HYPERV_H
|
|
#define __KVM_X86_VMX_HYPERV_H
|
|
|
|
#include <linux/kvm_host.h>
|
|
#include "vmcs12.h"
|
|
#include "vmx.h"
|
|
|
|
#define EVMPTR_INVALID (-1ULL)
|
|
#define EVMPTR_MAP_PENDING (-2ULL)
|
|
|
|
enum nested_evmptrld_status {
|
|
EVMPTRLD_DISABLED,
|
|
EVMPTRLD_SUCCEEDED,
|
|
EVMPTRLD_VMFAIL,
|
|
EVMPTRLD_ERROR,
|
|
};
|
|
|
|
#ifdef CONFIG_KVM_HYPERV
|
|
static inline bool evmptr_is_valid(u64 evmptr)
|
|
{
|
|
return evmptr != EVMPTR_INVALID && evmptr != EVMPTR_MAP_PENDING;
|
|
}
|
|
|
|
static inline bool nested_vmx_is_evmptr12_valid(struct vcpu_vmx *vmx)
|
|
{
|
|
return evmptr_is_valid(vmx->nested.hv_evmcs_vmptr);
|
|
}
|
|
|
|
static inline bool evmptr_is_set(u64 evmptr)
|
|
{
|
|
return evmptr != EVMPTR_INVALID;
|
|
}
|
|
|
|
static inline bool nested_vmx_is_evmptr12_set(struct vcpu_vmx *vmx)
|
|
{
|
|
return evmptr_is_set(vmx->nested.hv_evmcs_vmptr);
|
|
}
|
|
|
|
static inline struct hv_enlightened_vmcs *nested_vmx_evmcs(struct vcpu_vmx *vmx)
|
|
{
|
|
return vmx->nested.hv_evmcs;
|
|
}
|
|
|
|
static inline bool guest_cpuid_has_evmcs(struct kvm_vcpu *vcpu)
|
|
{
|
|
/*
|
|
* eVMCS is exposed to the guest if Hyper-V is enabled in CPUID and
|
|
* eVMCS has been explicitly enabled by userspace.
|
|
*/
|
|
return vcpu->arch.hyperv_enabled &&
|
|
to_vmx(vcpu)->nested.enlightened_vmcs_enabled;
|
|
}
|
|
|
|
u64 nested_get_evmptr(struct kvm_vcpu *vcpu);
|
|
uint16_t nested_get_evmcs_version(struct kvm_vcpu *vcpu);
|
|
int nested_enable_evmcs(struct kvm_vcpu *vcpu,
|
|
uint16_t *vmcs_version);
|
|
void nested_evmcs_filter_control_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata);
|
|
int nested_evmcs_check_controls(struct vmcs12 *vmcs12);
|
|
bool nested_evmcs_l2_tlb_flush_enabled(struct kvm_vcpu *vcpu);
|
|
void vmx_hv_inject_synthetic_vmexit_post_tlb_flush(struct kvm_vcpu *vcpu);
|
|
#else
|
|
static inline bool evmptr_is_valid(u64 evmptr)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool nested_vmx_is_evmptr12_valid(struct vcpu_vmx *vmx)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool evmptr_is_set(u64 evmptr)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool nested_vmx_is_evmptr12_set(struct vcpu_vmx *vmx)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline struct hv_enlightened_vmcs *nested_vmx_evmcs(struct vcpu_vmx *vmx)
|
|
{
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
#endif /* __KVM_X86_VMX_HYPERV_H */
|