On Fri, Jun 28, 2024 at 04:20:02PM +0100, Peter Maydell wrote: > On Thu, 27 Jun 2024 at 14:39, Akihiko Odaki <akihiko.od...@daynix.com> wrote: > > > > FDT properties are aligned by 4 bytes, not 8 bytes. > > > > Signed-off-by: Akihiko Odaki <akihiko.od...@daynix.com> > > --- > > hw/ppc/vof.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/hw/ppc/vof.c b/hw/ppc/vof.c > > index e3b430a81f4f..b5b6514d79fc 100644 > > --- a/hw/ppc/vof.c > > +++ b/hw/ppc/vof.c > > @@ -646,7 +646,7 @@ static void vof_dt_memory_available(void *fdt, GArray > > *claimed, uint64_t base) > > mem0_reg = fdt_getprop(fdt, offset, "reg", &proplen); > > g_assert(mem0_reg && proplen == sizeof(uint32_t) * (ac + sc)); > > if (sc == 2) { > > - mem0_end = be64_to_cpu(*(uint64_t *)(mem0_reg + sizeof(uint32_t) * > > ac)); > > + mem0_end = ldq_be_p(mem0_reg + sizeof(uint32_t) * ac); > > } else { > > mem0_end = be32_to_cpu(*(uint32_t *)(mem0_reg + sizeof(uint32_t) * > > ac)); > > } > > I did wonder if there was a better way to do what this is doing, > but neither we (in system/device_tree.c) nor libfdt seem to > provide one.
libfdt does provide unaligned access helpers (fdt32_ld() etc.), but not an automatic aligned-or-unaligned helper. Maybe we should add that? -- David Gibson (he or they) | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you, not the other way | around. http://www.ozlabs.org/~dgibson
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