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author | Anthony Liguori <aliguori@us.ibm.com> | 2011-12-19 09:12:25 -0600 |
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committer | Anthony Liguori <aliguori@us.ibm.com> | 2011-12-19 09:12:25 -0600 |
commit | cde7fc31dee7a7bac96779f77a21825b187871d3 (patch) | |
tree | 2be2b44d2a413f8af70e50a446bec77e3e701d0e /memory.h | |
parent | 3cfdd0da7e513e740b759a2abec49db3c086d6e2 (diff) | |
parent | a6c5c07990059c94bf50b0422e953af1368353c0 (diff) | |
download | hqemu-cde7fc31dee7a7bac96779f77a21825b187871d3.zip hqemu-cde7fc31dee7a7bac96779f77a21825b187871d3.tar.gz |
Merge remote-tracking branch 'qemu-kvm/memory/mutators' into staging
Conflicts:
memory.h
Diffstat (limited to 'memory.h')
-rw-r--r-- | memory.h | 39 |
1 files changed, 39 insertions, 0 deletions
@@ -123,6 +123,7 @@ struct MemoryRegion { bool terminates; bool readable; bool readonly; /* For RAM regions */ + bool enabled; MemoryRegion *alias; target_phys_addr_t alias_offset; unsigned priority; @@ -501,6 +502,44 @@ void memory_region_add_subregion_overlap(MemoryRegion *mr, void memory_region_del_subregion(MemoryRegion *mr, MemoryRegion *subregion); +/* + * memory_region_set_enabled: dynamically enable or disable a region + * + * Enables or disables a memory region. A disabled memory region + * ignores all accesses to itself and its subregions. It does not + * obscure sibling subregions with lower priority - it simply behaves as + * if it was removed from the hierarchy. + * + * Regions default to being enabled. + * + * @mr: the region to be updated + * @enabled: whether to enable or disable the region + */ +void memory_region_set_enabled(MemoryRegion *mr, bool enabled); + +/* + * memory_region_set_address: dynamically update the address of a region + * + * Dynamically updates the address of a region, relative to its parent. + * May be used on regions are currently part of a memory hierarchy. + * + * @mr: the region to be updated + * @addr: new address, relative to parent region + */ +void memory_region_set_address(MemoryRegion *mr, target_phys_addr_t addr); + +/* + * memory_region_set_alias_offset: dynamically update a memory alias's offset + * + * Dynamically updates the offset into the target region that an alias points + * to, as if the fourth argument to memory_region_init_alias() has changed. + * + * @mr: the #MemoryRegion to be updated; should be an alias. + * @offset: the new offset into the target memory region + */ +void memory_region_set_alias_offset(MemoryRegion *mr, + target_phys_addr_t offset); + /** * memory_region_transaction_begin: Start a transaction. * |