Commit ba97bb07 authored by Paolo Bonzini's avatar Paolo Bonzini
Browse files

KVM: x86: remove SMRAM address space if SMM is not supported 



If CONFIG_KVM_SMM is not defined HF_SMM_MASK will always be zero, and
we can spare userspace the hassle of setting up the SMRAM address space
simply by reporting that only one address space is supported.

Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Reviewed-by: default avatarMaxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20220929172016.319443-8-pbonzini@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 31e83e21

arch/x86/include/asm/kvm_host.h

+8 −5
Original line number Diff line number Diff line
@@ -1998,11 +1998,14 @@ enum { 
#define HF_SMM_MASK		(1 << 6)

#define HF_SMM_INSIDE_NMI_MASK	(1 << 7)



#ifdef CONFIG_KVM_SMM

# define __KVM_VCPU_MULTIPLE_ADDRESS_SPACE

# define KVM_ADDRESS_SPACE_NUM 2



# define kvm_arch_vcpu_memslots_id(vcpu) ((vcpu)->arch.hflags & HF_SMM_MASK ? 1 : 0)

# define kvm_memslots_for_spte_role(kvm, role) __kvm_memslots(kvm, (role).smm)

#else

# define kvm_memslots_for_spte_role(kvm, role) __kvm_memslots(kvm, 0)

#endif



#define KVM_ARCH_WANT_MMU_NOTIFIER