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memory_mapping: Drop qemu_get_memory_mapping() stub 

dump.c:dump_init() never checked for the return code anyway.
If paging is not enabled, it will fall back to an identity map.
If paging is enabled and getting memory mapping list is not
implemented, qemu_get_guest_memory_mapping() will return an error.

Since the targets not implementing memory mapping also don't implement
dump support, we will not reach this code today and can worry about
changing cpu_paging_enabled() default when the need arises.

This allows us to drop CONFIG_HAVE_GET_MEMORY_SUPPORT.

Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Andreas Färber 2013-05-28 14:53:32 +02:00
parent a23bbfda75
commit c22d8e0448
3 changed files with 1 additions and 28 deletions
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4
Makefile.target
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@ -63,7 +63,6 @@ all: $(PROGS) stap
CONFIG_NO_PCI = $(if $(subst n,,$(CONFIG_PCI)),n,y)
CONFIG_NO_KVM = $(if $(subst n,,$(CONFIG_KVM)),n,y)
CONFIG_NO_XEN = $(if $(subst n,,$(CONFIG_XEN)),n,y)
CONFIG_NO_GET_MEMORY_MAPPING = $(if $(subst n,,$(CONFIG_HAVE_GET_MEMORY_MAPPING)),n,y)
#########################################################
# cpu emulator library
@ -110,9 +109,8 @@ obj-y += hw/
obj-$(CONFIG_FDT) += device_tree.o
obj-$(CONFIG_KVM) += kvm-all.o
obj-y += memory.o savevm.o cputlb.o
obj-$(CONFIG_HAVE_GET_MEMORY_MAPPING) += memory_mapping.o
obj-y += memory_mapping.o
obj-$(CONFIG_HAVE_CORE_DUMP) += dump.o
obj-$(CONFIG_NO_GET_MEMORY_MAPPING) += memory_mapping-stub.o
LIBS+=$(libs_softmmu)
# xen support

4
configure vendored
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@ -4298,10 +4298,6 @@ case "$target_arch2" in
fi
fi
esac
case "$target_arch2" in
i386|x86_64)
echo "CONFIG_HAVE_GET_MEMORY_MAPPING=y" >> $config_target_mak
esac
if test "$target_bigendian" = "yes" ; then
echo "TARGET_WORDS_BIGENDIAN=y" >> $config_target_mak
fi

21
memory_mapping-stub.c
View File

@ -1,21 +0,0 @@
/*
* QEMU memory mapping
*
* Copyright Fujitsu, Corp. 2011, 2012
*
* Authors:
* Wen Congyang <wency@cn.fujitsu.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
*/
#include "cpu.h"
#include "exec/cpu-all.h"
#include "sysemu/memory_mapping.h"
int qemu_get_guest_memory_mapping(MemoryMappingList *list)
{
return -2;
}