Commit a764b56b authored by Marc Zyngier's avatar Marc Zyngier
Browse files

KVM: arm64: Allow kvm_has_feat() to take variable arguments 



In order to be able to write more compact (and easier to read) code,
let kvm_has_feat() and co take variable arguments. This enables
constructs such as:

	#define FEAT_SME	ID_AA64PFR1_EL1, SME, IMP

	if (kvm_has_feat(kvm, FEAT_SME))
		[...]

which is admitedly more readable.

Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
parent c6cbe6a4

arch/arm64/include/asm/kvm_host.h

+6 −2
Original line number Diff line number Diff line
@@ -1572,12 +1572,16 @@ void kvm_set_vm_id_reg(struct kvm *kvm, u32 reg, u64 val); 
	 kvm_cmp_feat_signed(kvm, id, fld, op, limit) :			\

	 kvm_cmp_feat_unsigned(kvm, id, fld, op, limit))



#define kvm_has_feat(kvm, id, fld, limit)				\

#define __kvm_has_feat(kvm, id, fld, limit)				\

	kvm_cmp_feat(kvm, id, fld, >=, limit)



#define kvm_has_feat_enum(kvm, id, fld, val)				\

#define kvm_has_feat(kvm, ...) __kvm_has_feat(kvm, __VA_ARGS__)



#define __kvm_has_feat_enum(kvm, id, fld, val)				\

	kvm_cmp_feat_unsigned(kvm, id, fld, ==, val)



#define kvm_has_feat_enum(kvm, ...) __kvm_has_feat_enum(kvm, __VA_ARGS__)



#define kvm_has_feat_range(kvm, id, fld, min, max)			\

	(kvm_cmp_feat(kvm, id, fld, >=, min) &&				\

	kvm_cmp_feat(kvm, id, fld, <=, max))