diff options
| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2017-03-10 12:41:13 +1100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2017-04-26 12:00:41 +1000 |
| commit | d6ee2a7c85088d587fb0e0376fba1fa20d59c9f3 (patch) | |
| tree | 815d0adc9e6a674b494fda930779436f78c08c0b /target/ppc/kvm_ppc.h | |
| parent | 9d169fb3c8c8434124677afa52824c4b15b62b65 (diff) | |
target-ppc: kvm: make use of KVM_CREATE_SPAPR_TCE_64
KVM_CAP_SPAPR_TCE capability allows creating TCE tables in KVM which
allows having in-kernel acceleration for H_PUT_TCE_xxx hypercalls.
However it only supports 32bit DMA windows at zero bus offset.
There is a new KVM_CAP_SPAPR_TCE_64 capability which supports 64bit
window size, variable page size and bus offset.
This makes use of the new capability. The kernel headers are already
updated as the kernel support went in to v4.6.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target/ppc/kvm_ppc.h')
| -rw-r--r-- | target/ppc/kvm_ppc.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/target/ppc/kvm_ppc.h b/target/ppc/kvm_ppc.h index 8e9f42d0c6..08ecf75a46 100644 --- a/target/ppc/kvm_ppc.h +++ b/target/ppc/kvm_ppc.h @@ -36,8 +36,9 @@ int kvmppc_booke_watchdog_enable(PowerPCCPU *cpu); #ifndef CONFIG_USER_ONLY off_t kvmppc_alloc_rma(void **rma); bool kvmppc_spapr_use_multitce(void); -void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t window_size, int *pfd, - bool need_vfio); +void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t page_shift, + uint64_t bus_offset, uint32_t nb_table, + int *pfd, bool need_vfio); int kvmppc_remove_spapr_tce(void *table, int pfd, uint32_t window_size); int kvmppc_reset_htab(int shift_hint); uint64_t kvmppc_rma_size(uint64_t current_size, unsigned int hash_shift); @@ -167,9 +168,10 @@ static inline bool kvmppc_spapr_use_multitce(void) return false; } -static inline void *kvmppc_create_spapr_tce(uint32_t liobn, - uint32_t window_size, int *fd, - bool need_vfio) +static inline void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t page_shift, + uint64_t bus_offset, + uint32_t nb_table, + int *pfd, bool need_vfio) { return NULL; } |