diff options
Diffstat (limited to 'hw/spapr.c')
| -rw-r--r-- | hw/spapr.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/hw/spapr.c b/hw/spapr.c index d0bddbce95..1b01d6475d 100644 --- a/hw/spapr.c +++ b/hw/spapr.c @@ -146,6 +146,40 @@ static int spapr_set_associativity(void *fdt, sPAPREnvironment *spapr) return ret; } + +static size_t create_page_sizes_prop(CPUPPCState *env, uint32_t *prop, + size_t maxsize) +{ + size_t maxcells = maxsize / sizeof(uint32_t); + int i, j, count; + uint32_t *p = prop; + + for (i = 0; i < PPC_PAGE_SIZES_MAX_SZ; i++) { + struct ppc_one_seg_page_size *sps = &env->sps.sps[i]; + + if (!sps->page_shift) { + break; + } + for (count = 0; count < PPC_PAGE_SIZES_MAX_SZ; count++) { + if (sps->enc[count].page_shift == 0) { + break; + } + } + if ((p - prop) >= (maxcells - 3 - count * 2)) { + break; + } + *(p++) = cpu_to_be32(sps->page_shift); + *(p++) = cpu_to_be32(sps->slb_enc); + *(p++) = cpu_to_be32(count); + for (j = 0; j < count; j++) { + *(p++) = cpu_to_be32(sps->enc[j].page_shift); + *(p++) = cpu_to_be32(sps->enc[j].pte_enc); + } + } + + return (p - prop) * sizeof(uint32_t); +} + static void *spapr_create_fdt_skel(const char *cpu_model, target_phys_addr_t rma_size, target_phys_addr_t initrd_base, @@ -298,6 +332,8 @@ static void *spapr_create_fdt_skel(const char *cpu_model, 0xffffffff, 0xffffffff}; uint32_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq() : TIMEBASE_FREQ; uint32_t cpufreq = kvm_enabled() ? kvmppc_get_clockfreq() : 1000000000; + uint32_t page_sizes_prop[64]; + size_t page_sizes_prop_size; if ((index % smt) != 0) { continue; @@ -362,6 +398,13 @@ static void *spapr_create_fdt_skel(const char *cpu_model, _FDT((fdt_property_cell(fdt, "ibm,dfp", 1))); } + page_sizes_prop_size = create_page_sizes_prop(env, page_sizes_prop, + sizeof(page_sizes_prop)); + if (page_sizes_prop_size) { + _FDT((fdt_property(fdt, "ibm,segment-page-sizes", + page_sizes_prop, page_sizes_prop_size))); + } + _FDT((fdt_end_node(fdt))); } |