diff options
| author | Suresh Warrier <warrier@linux.vnet.ibm.com> | 2016-08-19 15:35:48 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2016-09-09 16:26:19 +1000 |
| commit | 8daaafc88b46fb3af952e92d7c2816a8950e1363 (patch) | |
| tree | 904a4f0df30057dd12654644597186f63b59236c /arch/powerpc/include/asm/kvm_host.h | |
| parent | 9576730d0e6e301343c5aead5418ad53fcecfd14 (diff) | |
KVM: PPC: Book3S HV: Introduce kvmppc_passthru_irqmap
This patch introduces an IRQ mapping structure, the
kvmppc_passthru_irqmap structure that is to be used
to map the real hardware IRQ in the host with the virtual
hardware IRQ (gsi) that is injected into a guest by KVM for
passthrough adapters.
Currently, we assume a separate IRQ mapping structure for
each guest. Each kvmppc_passthru_irqmap has a mapping arrays,
containing all defined real<->virtual IRQs.
[paulus@ozlabs.org - removed irq_chip field from struct
kvmppc_passthru_irqmap; changed parameter for
kvmppc_get_passthru_irqmap from struct kvm_vcpu * to struct
kvm *, removed small cached array.]
Signed-off-by: Suresh Warrier <warrier@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch/powerpc/include/asm/kvm_host.h')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_host.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index 373003f4551d..89ac1f6c2cb2 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -203,6 +203,8 @@ struct kvmppc_spapr_tce_table { struct kvmppc_xics; struct kvmppc_icp; +struct kvmppc_passthru_irqmap; + /* * The reverse mapping array has one entry for each HPTE, * which stores the guest's view of the second word of the HPTE @@ -273,6 +275,7 @@ struct kvm_arch { #endif #ifdef CONFIG_KVM_XICS struct kvmppc_xics *xics; + struct kvmppc_passthru_irqmap *pimap; #endif struct kvmppc_ops *kvm_ops; #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE @@ -369,6 +372,20 @@ struct kvmhv_tb_accumulator { u64 tb_max; /* max time */ }; +#ifdef CONFIG_PPC_BOOK3S_64 +struct kvmppc_irq_map { + u32 r_hwirq; + u32 v_hwirq; + struct irq_desc *desc; +}; + +#define KVMPPC_PIRQ_MAPPED 1024 +struct kvmppc_passthru_irqmap { + int n_mapped; + struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED]; +}; +#endif + # ifdef CONFIG_PPC_FSL_BOOK3E #define KVMPPC_BOOKE_IAC_NUM 2 #define KVMPPC_BOOKE_DAC_NUM 2 |