diff options
Diffstat (limited to 'arch/powerpc/kvm/book3s_hv_rm_xics.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv_rm_xics.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/arch/powerpc/kvm/book3s_hv_rm_xics.c b/arch/powerpc/kvm/book3s_hv_rm_xics.c index a0ea63ac2b52..06edc4366639 100644 --- a/arch/powerpc/kvm/book3s_hv_rm_xics.c +++ b/arch/powerpc/kvm/book3s_hv_rm_xics.c @@ -70,7 +70,11 @@ static inline void icp_send_hcore_msg(int hcore, struct kvm_vcpu *vcpu) hcpu = hcore << threads_shift; kvmppc_host_rm_ops_hv->rm_core[hcore].rm_data = vcpu; smp_muxed_ipi_set_message(hcpu, PPC_MSG_RM_HOST_ACTION); - icp_native_cause_ipi_rm(hcpu); + if (paca[hcpu].kvm_hstate.xics_phys) + icp_native_cause_ipi_rm(hcpu); + else + opal_rm_int_set_mfrr(get_hard_smp_processor_id(hcpu), + IPI_PRIORITY); } #else static inline void icp_send_hcore_msg(int hcore, struct kvm_vcpu *vcpu) { } @@ -737,7 +741,7 @@ int kvmppc_rm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr) unsigned long eoi_rc; -static void icp_eoi(struct irq_chip *c, u32 hwirq, u32 xirr) +static void icp_eoi(struct irq_chip *c, u32 hwirq, __be32 xirr, bool *again) { unsigned long xics_phys; int64_t rc; @@ -751,7 +755,12 @@ static void icp_eoi(struct irq_chip *c, u32 hwirq, u32 xirr) /* EOI it */ xics_phys = local_paca->kvm_hstate.xics_phys; - _stwcix(xics_phys + XICS_XIRR, xirr); + if (xics_phys) { + _stwcix(xics_phys + XICS_XIRR, xirr); + } else { + rc = opal_rm_int_eoi(be32_to_cpu(xirr)); + *again = rc > 0; + } } static int xics_opal_rm_set_server(unsigned int hw_irq, int server_cpu) @@ -809,9 +818,10 @@ static void kvmppc_rm_handle_irq_desc(struct irq_desc *desc) } long kvmppc_deliver_irq_passthru(struct kvm_vcpu *vcpu, - u32 xirr, + __be32 xirr, struct kvmppc_irq_map *irq_map, - struct kvmppc_passthru_irqmap *pimap) + struct kvmppc_passthru_irqmap *pimap, + bool *again) { struct kvmppc_xics *xics; struct kvmppc_icp *icp; @@ -825,7 +835,8 @@ long kvmppc_deliver_irq_passthru(struct kvm_vcpu *vcpu, icp_rm_deliver_irq(xics, icp, irq); /* EOI the interrupt */ - icp_eoi(irq_desc_get_chip(irq_map->desc), irq_map->r_hwirq, xirr); + icp_eoi(irq_desc_get_chip(irq_map->desc), irq_map->r_hwirq, xirr, + again); if (check_too_hard(xics, icp) == H_TOO_HARD) return 2; |