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Commit c60ff51e authored by Xiantao Zhang's avatar Xiantao Zhang Committed by Avi Kivity
Browse files

KVM: ia64: fix vmm_spin_{un}lock for !CONFIG_SMP 



In the case of !CONFIG_SMP, raw_spinlock_t is empty and the spinlock functions
don't build.  Fix by defining spinlock functions for the uniprocessor case.

Signed-off-by: default avatarXiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 928d4bf7

arch/ia64/kvm/vcpu.h

+5 −0
Original line number Diff line number Diff line
@@ -384,6 +384,10 @@ static inline u64 __gpfn_is_io(u64 gpfn) 
#define MODE_IND(psr)	\

	(((psr).it << 2) + ((psr).dt << 1) + (psr).rt)



#ifndef CONFIG_SMP

#define _vmm_raw_spin_lock(x)	 do {}while(0)

#define _vmm_raw_spin_unlock(x) do {}while(0)

#else

#define _vmm_raw_spin_lock(x)						\

	do {								\

		__u32 *ia64_spinlock_ptr = (__u32 *) (x);		\
@@ -403,6 +407,7 @@ static inline u64 __gpfn_is_io(u64 gpfn) 
	do { barrier();				\

		((spinlock_t *)x)->raw_lock.lock = 0; } \

while (0)

#endif



void vmm_spin_lock(spinlock_t *lock);

void vmm_spin_unlock(spinlock_t *lock);