diff options
| -rw-r--r-- | hw/ppc/spapr_iommu.c | 8 | ||||
| -rw-r--r-- | target/ppc/kvm.c | 48 | ||||
| -rw-r--r-- | target/ppc/kvm_ppc.h | 12 |
3 files changed, 49 insertions, 19 deletions
diff --git a/hw/ppc/spapr_iommu.c b/hw/ppc/spapr_iommu.c index ae30bbe30f..29c80bb3c8 100644 --- a/hw/ppc/spapr_iommu.c +++ b/hw/ppc/spapr_iommu.c @@ -79,15 +79,16 @@ static IOMMUAccessFlags spapr_tce_iommu_access_flags(uint64_t tce) static uint64_t *spapr_tce_alloc_table(uint32_t liobn, uint32_t page_shift, + uint64_t bus_offset, uint32_t nb_table, int *fd, bool need_vfio) { uint64_t *table = NULL; - uint64_t window_size = (uint64_t)nb_table << page_shift; - if (kvm_enabled() && !(window_size >> 32)) { - table = kvmppc_create_spapr_tce(liobn, window_size, fd, need_vfio); + if (kvm_enabled()) { + table = kvmppc_create_spapr_tce(liobn, page_shift, bus_offset, nb_table, + fd, need_vfio); } if (!table) { @@ -342,6 +343,7 @@ void spapr_tce_table_enable(sPAPRTCETable *tcet, tcet->nb_table = nb_table; tcet->table = spapr_tce_alloc_table(tcet->liobn, tcet->page_shift, + tcet->bus_offset, tcet->nb_table, &tcet->fd, tcet->need_vfio); diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c index c3d426292c..79b90a6910 100644 --- a/target/ppc/kvm.c +++ b/target/ppc/kvm.c @@ -74,6 +74,7 @@ static int cap_booke_sregs; static int cap_ppc_smt; static int cap_ppc_rma; static int cap_spapr_tce; +static int cap_spapr_tce_64; static int cap_spapr_multitce; static int cap_spapr_vfio; static int cap_hior; @@ -126,6 +127,7 @@ int kvm_arch_init(MachineState *ms, KVMState *s) cap_ppc_smt = kvm_check_extension(s, KVM_CAP_PPC_SMT); cap_ppc_rma = kvm_check_extension(s, KVM_CAP_PPC_RMA); cap_spapr_tce = kvm_check_extension(s, KVM_CAP_SPAPR_TCE); + cap_spapr_tce_64 = kvm_check_extension(s, KVM_CAP_SPAPR_TCE_64); cap_spapr_multitce = kvm_check_extension(s, KVM_CAP_SPAPR_MULTITCE); cap_spapr_vfio = false; cap_one_reg = kvm_check_extension(s, KVM_CAP_ONE_REG); @@ -2136,13 +2138,10 @@ bool kvmppc_spapr_use_multitce(void) return cap_spapr_multitce; } -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) { - struct kvm_create_spapr_tce args = { - .liobn = liobn, - .window_size = window_size, - }; long len; int fd; void *table; @@ -2155,14 +2154,41 @@ void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t window_size, int *pfd, return NULL; } - fd = kvm_vm_ioctl(kvm_state, KVM_CREATE_SPAPR_TCE, &args); - if (fd < 0) { - fprintf(stderr, "KVM: Failed to create TCE table for liobn 0x%x\n", - liobn); + if (cap_spapr_tce_64) { + struct kvm_create_spapr_tce_64 args = { + .liobn = liobn, + .page_shift = page_shift, + .offset = bus_offset >> page_shift, + .size = nb_table, + .flags = 0 + }; + fd = kvm_vm_ioctl(kvm_state, KVM_CREATE_SPAPR_TCE_64, &args); + if (fd < 0) { + fprintf(stderr, + "KVM: Failed to create TCE64 table for liobn 0x%x\n", + liobn); + return NULL; + } + } else if (cap_spapr_tce) { + uint64_t window_size = (uint64_t) nb_table << page_shift; + struct kvm_create_spapr_tce args = { + .liobn = liobn, + .window_size = window_size, + }; + if ((window_size != args.window_size) || bus_offset) { + return NULL; + } + fd = kvm_vm_ioctl(kvm_state, KVM_CREATE_SPAPR_TCE, &args); + if (fd < 0) { + fprintf(stderr, "KVM: Failed to create TCE table for liobn 0x%x\n", + liobn); + return NULL; + } + } else { return NULL; } - len = (window_size / SPAPR_TCE_PAGE_SIZE) * sizeof(uint64_t); + len = nb_table * sizeof(uint64_t); /* FIXME: round this up to page size */ table = mmap(NULL, len, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); 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; } |