From: Fuad Tabba Date: Thu, 10 Nov 2022 19:02:43 +0000 (+0000) Subject: KVM: arm64: Add hyp_spinlock_t static initializer X-Git-Tag: v6.6.7~3891^2~4^2~4^2~15 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1c80002e3264552d8b9c0e162e09aa4087403716;p=platform%2Fkernel%2Flinux-starfive.git KVM: arm64: Add hyp_spinlock_t static initializer Introduce a static initializer macro for 'hyp_spinlock_t' so that it is straightforward to instantiate global locks at EL2. This will be later utilised for locking the VM table in the hypervisor. Reviewed-by: Philippe Mathieu-Daudé Tested-by: Vincent Donnefort Signed-off-by: Fuad Tabba Signed-off-by: Will Deacon Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20221110190259.26861-11-will@kernel.org --- diff --git a/arch/arm64/kvm/hyp/include/nvhe/spinlock.h b/arch/arm64/kvm/hyp/include/nvhe/spinlock.h index 4652fd0..7c7ea8c 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/spinlock.h +++ b/arch/arm64/kvm/hyp/include/nvhe/spinlock.h @@ -28,9 +28,17 @@ typedef union hyp_spinlock { }; } hyp_spinlock_t; +#define __HYP_SPIN_LOCK_INITIALIZER \ + { .__val = 0 } + +#define __HYP_SPIN_LOCK_UNLOCKED \ + ((hyp_spinlock_t) __HYP_SPIN_LOCK_INITIALIZER) + +#define DEFINE_HYP_SPINLOCK(x) hyp_spinlock_t x = __HYP_SPIN_LOCK_UNLOCKED + #define hyp_spin_lock_init(l) \ do { \ - *(l) = (hyp_spinlock_t){ .__val = 0 }; \ + *(l) = __HYP_SPIN_LOCK_UNLOCKED; \ } while (0) static inline void hyp_spin_lock(hyp_spinlock_t *lock)