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authorPaul Mackerras <paulus@samba.org>2013-05-23 15:42:21 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-06-01 08:29:27 +1000
commit8e44ddc3f34d22c55f2977ac8b160609935d37ca (patch)
treef6fea15542dba7adb3ba4ce9575ece75b05e8c9b /arch/powerpc/kvm/book3s_pr_papr.c
parentf7b3367774f92a688d39ed767f0ae9b93af7873a (diff)
powerpc/kvm/book3s: Add support for H_IPOLL and H_XIRR_X in XICS emulation
This adds the remaining two hypercalls defined by PAPR for manipulating the XICS interrupt controller, H_IPOLL and H_XIRR_X. H_IPOLL returns information about the priority and pending interrupts for a virtual cpu, without changing any state. H_XIRR_X is like H_XIRR in that it reads and acknowledges the highest-priority pending interrupt, but it also returns the timestamp (timebase register value) from when the interrupt was first received by the hypervisor. Currently we just return the current time, since we don't do any software queueing of virtual interrupts inside the XICS emulation code. These hcalls are not currently used by Linux guests, but may be in future. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kvm/book3s_pr_papr.c')
-rw-r--r--arch/powerpc/kvm/book3s_pr_papr.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_pr_papr.c b/arch/powerpc/kvm/book3s_pr_papr.c
index b24309c6c2d5..da0e0bc268bd 100644
--- a/arch/powerpc/kvm/book3s_pr_papr.c
+++ b/arch/powerpc/kvm/book3s_pr_papr.c
@@ -257,6 +257,8 @@ int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd)
case H_CPPR:
case H_EOI:
case H_IPI:
+ case H_IPOLL:
+ case H_XIRR_X:
if (kvmppc_xics_enabled(vcpu))
return kvmppc_h_pr_xics_hcall(vcpu, cmd);
break;