| Message ID | 20221017115209.2099-11-will@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | KVM: arm64: Introduce pKVM hyp VM and vCPU state at EL2 | expand |
On 17/10/22 13:51, Will Deacon wrote: > From: Fuad Tabba <tabba@google.com> > > 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. > > Tested-by: Vincent Donnefort <vdonnefort@google.com> > Signed-off-by: Fuad Tabba <tabba@google.com> > Signed-off-by: Will Deacon <will@kernel.org> > --- > arch/arm64/kvm/hyp/include/nvhe/spinlock.h | 10 +++++++++- > 1 file changed, 9 insertions(+), 1 deletion(-) Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
diff --git a/arch/arm64/kvm/hyp/include/nvhe/spinlock.h b/arch/arm64/kvm/hyp/include/nvhe/spinlock.h index 4652fd04bdbe..7c7ea8c55405 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)