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2012-06-29Maintain the number of dirty pagesJuan Quintela1-0/+10
Calculate the number of dirty pages takes a lot on hosts with lots of memory. Just maintain how many pages are dirty. Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-06-29dirty bitmap: abstract its useJuan Quintela1-20/+20
Always use accessors to read/set the dirty bitmap. Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-03-08memory: get rid of cpu_register_io_memory()Avi Kivity1-3/+0
The return value of cpu_register_io_memory() is no longer used anywhere, so we can remove it and all associated data and code. Signed-off-by: Avi Kivity <avi@redhat.com>
2012-02-29memory: use a MemoryListener for core memory map updates tooAvi Kivity1-0/+3
This transforms memory.c into a library which can then be unit tested easily, by feeding it inputs and listening to its outputs. Signed-off-by: Avi Kivity <avi@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
2012-02-29memory: don't pass ->readable attribute to cpu_register_physical_memory_logAvi Kivity1-1/+1
It can be derived from the MemoryRegion itself (which is why it is not used there). Signed-off-by: Avi Kivity <avi@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
2012-02-04memory: change dirty getting API to take a sizeBlue Swirl1-2/+13
Instead of each device knowing or guessing the guest page size, just pass the desired size of dirtied memory area. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-01-29Fix off-by-one in dirty bitmap functionsAvi Kivity1-4/+6
Reported-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-01-25memory: change dirty setting APIs to take a sizeBlue Swirl1-0/+14
Instead of each target knowing or guessing the guest page size, just pass the desired size of dirtied memory area. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-01-25memory: fix dirty mask function length handlingBlue Swirl1-5/+6
Fix handling of cases like start = 0xfff, length = 2. Change length to ram_addr_t to handle larger lengths. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-01-13prepare for future GPLv2+ relicensingPaolo Bonzini1-2/+2
All files under GPLv2 will get GPLv2+ changes starting tomorrow. event_notifier.c and exec-obsolete.h were only ever touched by Red Hat employees and can be relicensed now. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-04Direct dispatch through MemoryRegionAvi Kivity1-3/+2
Now that all mmio goes through MemoryRegions, we can convert io_mem_opaque to be a MemoryRegion pointer, and remove the thunks that convert from old-style CPU{Read,Write}MemoryFunc to MemoryRegionOps. Signed-off-by: Avi Kivity <avi@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
2012-01-04Switch cpu_register_physical_memory_log() to use MemoryRegionsAvi Kivity1-21/+3
Still internally using ram_addr. Signed-off-by: Avi Kivity <avi@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
2012-01-04memory: move endianness compensation to memory coreAvi Kivity1-1/+1
Instead of doing device endianness compensation in cpu_register_io_memory(), do it in the memory core. Signed-off-by: Avi Kivity <avi@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
2012-01-04memory: obsolete more dirty memory related functionsAvi Kivity1-0/+49
No longer used outside memory.c and exec.c. Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-01-04memory: obsolete cpu_physical_memory_[gs]et_dirty_tracking()Avi Kivity1-0/+2
The getter is no longer used, so it is completely removed. Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-01-04vmstate, memory: decouple vmstate from memory APIAvi Kivity1-4/+2
Currently creating a memory region automatically registers it for live migration. This differs from other state (which is enumerated in a VMStateDescription structure) and ties the live migration code into the memory core. Decouple the two by introducing a separate API, vmstate_register_ram(), for registering a RAM block for migration. Currently the same implementation is reused, but later it can be moved into a separate list, and registrations can be moved to VMStateDescription blocks. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-12-19memory: move obsolete exec.c functions to a private headerAvi Kivity1-0/+68
This will help avoid accidental usage. Signed-off-by: Avi Kivity <avi@redhat.com>
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