From bf7663c4bd8f8f619d6dbb5780025d92ace250a8 Mon Sep 17 00:00:00 2001 From: Greg Kurz Date: Tue, 24 Jun 2014 19:33:21 +0200 Subject: cpu: introduce CPUClass::virtio_is_big_endian() If we want to support targets that can change endianness (modern PPC and ARM for the moment), we need to add a per-CPU class method to be called from the virtio code. The virtio_ prefix in the name is a hint for people to avoid misusage (aka. anywhere but from the virtio code). The default behaviour is to return the compile-time default target endianness. Suggested-by: Peter Maydell Signed-off-by: Greg Kurz Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- qom/cpu.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'qom/cpu.c') diff --git a/qom/cpu.c b/qom/cpu.c index fada2d4..b32dd0a 100644 --- a/qom/cpu.c +++ b/qom/cpu.c @@ -196,6 +196,11 @@ static int cpu_common_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg) return 0; } +bool target_words_bigendian(void); +static bool cpu_common_virtio_is_big_endian(CPUState *cpu) +{ + return target_words_bigendian(); +} void cpu_dump_state(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf, int flags) @@ -334,6 +339,7 @@ static void cpu_class_init(ObjectClass *klass, void *data) k->write_elf64_note = cpu_common_write_elf64_note; k->gdb_read_register = cpu_common_gdb_read_register; k->gdb_write_register = cpu_common_gdb_write_register; + k->virtio_is_big_endian = cpu_common_virtio_is_big_endian; dc->realize = cpu_common_realizefn; /* * Reason: CPUs still need special care by board code: wiring up -- cgit v1.1