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Provide runtime Target page information 

The migration code generally is built target-independent, however
there are a few places where knowing the target page size would
avoid artificially moving stuff into migration/ram.c.

Provide 'qemu_target_page_bits()' that returns TARGET_PAGE_BITS
to other bits of code so that they can stay target-independent.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2015-11-05 18:10:29 +00:00 committed by Juan Quintela
parent 2bfdd1c8a6
commit 038629a699
2 changed files with 11 additions and 0 deletions
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10
exec.c
View File

@ -3502,6 +3502,16 @@ int cpu_memory_rw_debug(CPUState *cpu, target_ulong addr,
}
return 0;
}
/*
* Allows code that needs to deal with migration bitmaps etc to still be built
* target independent.
*/
size_t qemu_target_page_bits(void)
{
return TARGET_PAGE_BITS;
}
#endif
/*

1
include/sysemu/sysemu.h
View File

@ -70,6 +70,7 @@ void qemu_system_killed(int signal, pid_t pid);
void qemu_devices_reset(void);
void qemu_system_reset(bool report);
void qemu_system_guest_panicked(void);
size_t qemu_target_page_bits(void);
void qemu_add_exit_notifier(Notifier *notify);
void qemu_remove_exit_notifier(Notifier *notify);