From b57cd6f6407d420d522ab71b9c0dd11993e49ba1 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Wed, 6 Jan 2016 12:10:58 +0000 Subject: ARM: KVM: Change kvm_call_hyp return type to unsigned long Having u64 as the kvm_call_hyp return type is problematic, as it forces all kind of tricks for the return values from HYP to be promoted to 64bit (LE has the LSB in r0, and BE has them in r1). Since the only user of the return value is perfectly happy with a 32bit value, let's make kvm_call_hyp return an unsigned long, which is 32bit on ARM. This solves yet another headache. Reviewed-by: Christoffer Dall Signed-off-by: Marc Zyngier --- arch/arm/include/asm/kvm_host.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h index 02932ba8a653..c62d71751f7a 100644 --- a/arch/arm/include/asm/kvm_host.h +++ b/arch/arm/include/asm/kvm_host.h @@ -165,7 +165,7 @@ unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu); int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices); int kvm_arm_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg); int kvm_arm_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg); -u64 kvm_call_hyp(void *hypfn, ...); +unsigned long kvm_call_hyp(void *hypfn, ...); void force_vm_exit(const cpumask_t *mask); #define KVM_ARCH_WANT_MMU_NOTIFIER -- cgit