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cpu: introduce CPUClass::virtio_is_big_endian()

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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 <peter.maydell@linaro.org>
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Greg Kurz 2014-06-24 19:33:21 +02:00 • committed by Michael S. Tsirkin
parent 98ed8ecfc9
commit bf7663c4bd
2 changed files with 7 additions and 0 deletions
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1
include/qom/cpu.h
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@ -116,6 +116,7 @@ typedef struct CPUClass {
CPUUnassignedAccess do_unassigned_access;
void (*do_unaligned_access)(CPUState *cpu, vaddr addr,
int is_write, int is_user, uintptr_t retaddr);
bool (*virtio_is_big_endian)(CPUState *cpu);
int (*memory_rw_debug)(CPUState *cpu, vaddr addr,
uint8_t *buf, int len, bool is_write);
void (*dump_state)(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf,