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KVM: PPC: Implement kvm_arch_intc_initialized() for PPC

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It doesn't make sense to create irqfds for a VM that doesn't have
in-kernel interrupt controller emulation.  There is an existing
interface for architecture code to tell the irqfd code whether or
not any interrupt controller has been initialized, called
kvm_arch_intc_initialized(), so let's implement that for powerpc.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Paul Mackerras 2016-08-10 11:27:27 +10:00
parent e48ba1cbce
commit 34a75b0f63
2 changed files with 15 additions and 0 deletions
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2
arch/powerpc/include/asm/kvm_host.h
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@ -43,6 +43,8 @@
#include <asm/cputhreads.h>
#define KVM_MAX_VCPU_ID (threads_per_subcore * KVM_MAX_VCORES)
#define __KVM_HAVE_ARCH_INTC_INITIALIZED
#ifdef CONFIG_KVM_MMIO
#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
#endif

13
arch/powerpc/kvm/powerpc.c
View File

@ -1167,6 +1167,19 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
return r;
}
bool kvm_arch_intc_initialized(struct kvm *kvm)
{
#ifdef CONFIG_KVM_MPIC
if (kvm->arch.mpic)
return true;
#endif
#ifdef CONFIG_KVM_XICS
if (kvm->arch.xics)
return true;
#endif
return false;
}
int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
struct kvm_mp_state *mp_state)
{