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hw: move headers to include/
Many of these should be cleaned up with proper qdev-/QOM-ification.Right now there are many catch-all headers in include/hw/ARCH dependingon cpu.h, and this makes it necessary to compile these files per-target.However, fixing this does not belong in these patches....
xen-mapcache: pass the right size argument to test_bits
Compute the correct size for test_bits().qemu_get_ram_ptr() and qemu_safe_ram_ptr() will call xen_map_cache()with size is 0 if the requested address is in the RAM. Thenxen_map_cache() will pass the size 0 to test_bits() for checking if the...
xen-mapcache: replace last_address_index with a last_entry pointer
Replace last_address_index and last_address_vaddr with a single pointerto the last MapCacheEntry used.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
softmmu: move include files to include/sysemu/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
misc: move include files to include/qemu/
Rename target_phys_addr_t to hwaddr
target_phys_addr_t is unwieldly, violates the C standard (_t suffixes arereserved) and its purpose doesn't match the name (most target_phys_addr_taddresses are not target specific). Replace it with a finger-friendly,...
Fix invalidate if memory requested was not bucket aligned
When memory is mapped in qemu_map_cache with lock != 0 a reverse mappingis created pointing to the virtual address of location requested.The cached mapped entry is saved in last_address_vaddr with the memory...
xen-mapcache: don't unmap locked entry during mapcache invalidation
When an IOREQ_TYPE_INVALIDATE is sent to QEMU, it invalidates all entryof the map cache even if it's locked.
QEMU is not able to know that entry was invalidated, so when an IOaccess is requested a segfault occured....
Xen, mapcache: Fix the compute of the size of bucket.
Because the size of a mapping is wrong when there is an offset and asize >= bucket_size.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
xen mapcache: check if memory region has moved.
This patch changes the xen_map_cache behavior. Before trying to map a guestaddr, mapcache will look into the list of range of address that have been moved(physmap/set_memory). There is currently one memory space like this, the vram,...
prepare for future GPLv2+ relicensing
All files under GPLv2 will get GPLv2+ changes starting tomorrow.event_notifier.c and exec-obsolete.h were only ever touched by Red Hatemployees and can be relicensed now.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>...
block: convert qemu_aio_flush() calls to bdrv_drain_all()
Many places in QEMU call qemu_aio_flush() to complete all pendingasynchronous I/O. Most of these places actually want to drain all blockrequests but there is no block layer API to do so.
This patch introduces the bdrv_drain_all() API to wait for requests...
xen-mapcache: Fix rlimit set size.
Previously, the address space soft limit was set mcache_max_size. So,before the mcache_max_size was reached by the mapcache, QEMU was killedfor overuse of the virtual address space.
This patch fix that by setting the soft limit the maximum than can have...
Use glib memory allocation and free functions
qemu_malloc/qemu_free no longer exist after this commit.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Fix a compilation error in xen-mapcache.c
This patch fixes a compilation error in xen-mapcache.c .
/home/stefanb/qemu/qemu-git/xen-mapcache.c: In function ‘xen_ram_addr_from_mapcache’:/home/stefanb/qemu/qemu-git/xen-mapcache.c:240:42: error: variable ‘pentry’ set but not used [-Werror=unused-but-set-variable]...
xen: Clean up map cache API naming
The map cache is a Xen thing, so its API should make this clear.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>Signed-off-by: Alexander Graf <agraf@suse.de>
xen: remove xen_map_block and xen_unmap_block
Replace xen_map_block with qemu_map_cache with the appropriate lockingand size parameters.Replace xen_unmap_block with qemu_invalidate_entry.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>...
xen: fix qemu_map_cache with size != MCACHE_BUCKET_SIZE
Fix the implementation of qemu_map_cache: correctly support sizearguments different from 0 or MCACHE_BUCKET_SIZE.The new implementation supports locked mapcache entries with sizemultiple of MCACHE_BUCKET_SIZE. qemu_invalidate_entry can correctly...
xen: remove qemu_map_cache_unlock
There is no need for qemu_map_cache_unlock, just useqemu_invalidate_entry instead.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>Signed-off-by: Alexander Graf <agraf@suse.de>
xen: Introduce the Xen mapcache
On IA32 host or IA32 PAE host, at present, generally, we can't createan HVM guest with more than 2G memory, because generally it's almostimpossible for Qemu to find a large enough and consecutive virtualaddress space to map an HVM guest's whole physical address space....
xen: Adds a cap to the number of map cache entries.
Adds a cap to the number of map cache entries. This prevents the mapcache from overwhelming system memory.
I also removed the bitmap macros and #included bitmap.h instead.
Signed-off-By: John Baboval <john.baboval@virtualcomputer.com>...
Introduce qemu_put_ram_ptr
This function allows to unlock a ram_ptr give by qemu_get_ram_ptr. Aftera call to qemu_put_ram_ptr, the pointer may be unmap from QEMU whenused with Xen.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>Acked-by: Alexander Graf <agraf@suse.de>...