From a764b56bf90b6d758ff21408c13cd686c2519ef9 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Sun, 9 Feb 2025 13:38:35 +0000 Subject: [PATCH] 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: Marc Zyngier --- arch/arm64/include/asm/kvm_host.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 21a23a8597fd..628cff7b436f 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -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)) -- 2.50.1