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Commit 5b15706d authored by Jim Mattson's avatar Jim Mattson Committed by Radim Krčmář
Browse files

kvm: vmx: Introduce VMCS12_MAX_FIELD_INDEX 



This is the highest index value used in any supported VMCS12 field
encoding. It is used to populate the IA32_VMX_VMCS_ENUM MSR.

Signed-off-by: default avatarJim Mattson <jmattson@google.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarRadim Krčmář <rkrcmar@redhat.com>
parent 44900ba6

arch/x86/kvm/vmx.c

+7 −1
Original line number Diff line number Diff line
@@ -407,6 +407,12 @@ struct __packed vmcs12 { 
 */

#define VMCS12_SIZE 0x1000



/*

 * VMCS12_MAX_FIELD_INDEX is the highest index value used in any

 * supported VMCS12 field encoding.

 */

#define VMCS12_MAX_FIELD_INDEX 0x17



/*

 * The nested_vmx structure is part of vcpu_vmx, and holds information we need

 * for correct emulation of VMX (i.e., nested VMX) on this vcpu.
@@ -2923,7 +2929,7 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx) 
	rdmsrl(MSR_IA32_VMX_CR4_FIXED1, vmx->nested.nested_vmx_cr4_fixed1);



	/* highest index: VMX_PREEMPTION_TIMER_VALUE */

	vmx->nested.nested_vmx_vmcs_enum = 0x2e;

	vmx->nested.nested_vmx_vmcs_enum = VMCS12_MAX_FIELD_INDEX << 1;

}



/*