Commit 8ef81a9a authored Feb 09, 2017 by Arnd Bergmann Committed by Paolo Bonzini Feb 09, 2017

KVM: x86: hide KVM_HC_CLOCK_PAIRING on 32 bit

The newly added hypercall doesn't work on x86-32:

arch/x86/kvm/x86.c: In function 'kvm_pv_clock_pairing':
arch/x86/kvm/x86.c:6163:6: error: implicit declaration of function 'kvm_get_walltime_and_clockread';did you mean 'kvm_get_time_scale'? [-Werror=implicit-function-declaration]

This adds an #ifdef around it, matching the one around the related
functions that are also only implemented on 64-bit systems.

Fixes: 55dd00a7 ("KVM: x86: add KVM_HC_CLOCK_PAIRING hypercall")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

parent 2e751dfb

arch/x86/kvm/x86.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -6148,6 +6148,7 @@ int kvm_emulate_halt(struct kvm_vcpu *vcpu)
		}
		EXPORT_SYMBOL_GPL(kvm_emulate_halt);

		#ifdef CONFIG_X86_64
		static int kvm_pv_clock_pairing(struct kvm_vcpu *vcpu, gpa_t paddr,
		unsigned long clock_type)
		{
		@@ -6174,6 +6175,7 @@ static int kvm_pv_clock_pairing(struct kvm_vcpu *vcpu, gpa_t paddr,

		return ret;
		}
		#endif

		/*
		* kvm_pv_kick_cpu_op: Kick a vcpu.
		@@ -6239,9 +6241,11 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu)
		kvm_pv_kick_cpu_op(vcpu->kvm, a0, a1);
		ret = 0;
		break;
		#ifdef CONFIG_X86_64
		case KVM_HC_CLOCK_PAIRING:
		ret = kvm_pv_clock_pairing(vcpu, a0, a1);
		break;
		#endif
		default:
		ret = -KVM_ENOSYS;
		break;