- 22 10月, 2012 5 次提交
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由 Avi Kivity 提交于
Since address spaces can be created dynamically by device hotplug, they can also be destroyed dynamically. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Currently we use a global radix tree to dispatch memory access. This only works with a single address space; to support multiple address spaces we make the radix tree a member of AddressSpace (via an intermediate structure AddressSpaceDispatch to avoid exposing too many internals). A side effect is that address_space_io also gains a dispatch table. When we remove all the pre-memory-API I/O registrations, we can use that for dispatching I/O and get rid of the original I/O dispatch. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Using the AddressSpace type reduces confusion, as you can't accidentally supply the MemoryRegion you're interested in. Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
With this change, memory.c no longer knows anything about special address spaces, so it is prepared for AddressSpace based DMA. Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Instead of calling a global function on coalesced mmio changes, which routes the call to kvm if enabled, add coalesced mmio hooks to MemoryListener and make kvm use that instead. The motivation is support for multiple address spaces (which means we we need to filter the call on the right address space) but the result is cleaner as well. Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 15 10月, 2012 5 次提交
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由 Avi Kivity 提交于
Many listeners don't need to respond to all MemoryListener callbacks; provide suitable no-op defaults instead. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Instead of embedding knowledge of the memory and I/O address spaces in the memory core, maintain a list of all address spaces. This list will later be extended dynamically for other bus masters. Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
The DMA API will use an AddressSpace to differentiate among different initiators. Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
AddressSpace contains a member, current_map, of type FlatView. Since we want to limit the leakage of internal types to public headers, switch to a pointer to a FlatView. There is no performance impact as this isn't used during lookups, only address space reconfigurations. Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
exec-obsolete.h used to hold pre-memory-API functions that were used from device code prior to the transition to the memory API. Now that the transition is complete, the name no longer describes the file. The functions still need to be merged better into the memory core, but there's no danger of anyone using them. Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 12 9月, 2012 4 次提交
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由 Jan Kiszka 提交于
Flush pending coalesced MMIO before performing mapping or state changes that could affect the event orderings or route the buffered requests to a wrong region. Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Jan Kiszka 提交于
Simplify the code as we are using now only a subset of the original features of memory_region_update_topology. Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Jan Kiszka 提交于
Wrap also simple operations consisting only of a single step with memory_region_transaction_begin/commit. This allows to perform additional steps like coalesced MMIO flushing from a single place. This requires dropping some micro-optimizations: The skipping of topology updates after updating disabled or unregistered regions. Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Jan Kiszka 提交于
Instead of flushing pending coalesced MMIO requests on every vmexit, this provides a mechanism to selectively flush when memory regions related to the coalesced one are accessed. This first of all includes the coalesced region itself but can also applied to other regions, e.g. of the same device, by calling memory_region_set_flush_coalesced. Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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- 29 8月, 2012 1 次提交
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由 Jan Kiszka 提交于
The last argument of find_portio is "write", so this must be true here. Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 12 7月, 2012 1 次提交
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由 Paolo Bonzini 提交于
Under Win32, EventNotifiers will not have event_notifier_get_fd, so we cannot call it in common code such as hw/virtio-pci.c. Pass a pointer to the notifier, and only retrieve the file descriptor in kvm-specific code. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 05 4月, 2012 1 次提交
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由 Julien Grall 提交于
This patch resolves a bug in memory listener registration. "range_add" callback was called on each section of the both address space (IO and memory space) even if it doesn't match the address space filter. Signed-off-by: NJulien Grall <julien.grall@citrix.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 19 3月, 2012 1 次提交
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由 Blue Swirl 提交于
Print also I/O ports behind bridges and other aliases. Signed-off-by: NBlue Swirl <blauwirbel@gmail.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 09 3月, 2012 2 次提交
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由 Avi Kivity 提交于
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: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Instead of indirecting via io_mem_region, dispatch directly through the MemoryRegion obtained from the iotlb or phys_page_find(). Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 05 3月, 2012 1 次提交
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由 Avi Kivity 提交于
Commit e58ac72b6a0 ("ioport: change portio_list not to use memory_region_set_offset()") started using aliases of I/O memory regions. Since the IORange used for the I/O was contained in the target region, the alias information (specifically, the offset into the region) was lost. This broke -vga std. Fix by allocating an independent object to hold the IORange and also the new offset. Note that I/O memory regions were conceptually broken wrt aliases in a different way: an alias can cause the same region to appear twice in an address space, but we had just one IORange to service it. This patch fixes that problem as well, since we can now have multiple IORange/MemoryRegion associations. Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 29 2月, 2012 11 次提交
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由 Avi Kivity 提交于
Current memory listeners are incremental; that is, they are expected to maintain their own state, and receive callbacks for changes to that state. This patch adds support for stateless listeners; these work by receiving a ->begin() callback (which tells them that new state is coming), a sequence of ->region_add() and ->region_nop() callbacks, and then a ->commit() callback which signifies the end of the new state. They should ignore ->region_del() callbacks. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Ignore any regions not belonging to a specified address space. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
All functionality has been moved to various MemoryListeners. Signed-off-by: NAvi Kivity <avi@redhat.com> Reviewed-by: NRichard Henderson <rth@twiddle.net>
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由 Avi Kivity 提交于
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: NAvi Kivity <avi@redhat.com> Reviewed-by: NRichard Henderson <rth@twiddle.net>
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由 Avi Kivity 提交于
It can be derived from the MemoryRegion itself (which is why it is not used there). Signed-off-by: NAvi Kivity <avi@redhat.com> Reviewed-by: NRichard Henderson <rth@twiddle.net>
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由 Avi Kivity 提交于
.readonly cannot be obtained from the MemoryRegion, since it is inherited from aliases (so you can have a MemoryRegion mapped RW at one address and RO at another). Record it in a MemoryRegionSection for listeners. Signed-off-by: NAvi Kivity <avi@redhat.com> Reviewed-by: NRichard Henderson <rth@twiddle.net>
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由 Avi Kivity 提交于
This way the accelerator (kvm) can handle them directly. Signed-off-by: NAvi Kivity <avi@redhat.com> Reviewed-by: NRichard Henderson <rth@twiddle.net>
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由 Avi Kivity 提交于
So it can be used in earlier code. Signed-off-by: NAvi Kivity <avi@redhat.com> Reviewed-by: NRichard Henderson <rth@twiddle.net>
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由 Avi Kivity 提交于
This allows reverse iteration, which in turns allows consistent ordering among multiple listeners: l1->add l2->add l2->del l1->del Signed-off-by: NAvi Kivity <avi@redhat.com> Reviewed-by: NRichard Henderson <rth@twiddle.net>
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由 Avi Kivity 提交于
Signed-off-by: NAvi Kivity <avi@redhat.com> Reviewed-by: NRichard Henderson <rth@twiddle.net>
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由 Avi Kivity 提交于
memory_region_set_offset() complicates the API, and has been deprecated since its introduction. Now that it is no longer used, remove it. Signed-off-by: NAvi Kivity <avi@redhat.com> Reviewed-by: NRichard Henderson <rth@twiddle.net>
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- 11 2月, 2012 1 次提交
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由 Jan Kiszka 提交于
Helpful to understand guest configurations of things like the i440FX's PAM or the state of ROM devices. Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 04 2月, 2012 1 次提交
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由 Blue Swirl 提交于
Instead of each device knowing or guessing the guest page size, just pass the desired size of dirtied memory area. Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 26 1月, 2012 1 次提交
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由 Blue Swirl 提交于
Instead of each target knowing or guessing the guest page size, just pass the desired size of dirtied memory area. Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 19 1月, 2012 1 次提交
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由 Jan Kiszka 提交于
Introduce a memory region type that can reserve I/O space. Such regions are useful for modeling I/O that is only handled outside of QEMU, i.e. in the context of an accelerator like KVM. Any access to such a region from QEMU is a bug, but could theoretically be triggered by guest code (DMA to reserved region). So only warning about such events once, then ignore them. Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
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- 14 1月, 2012 1 次提交
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由 Paolo Bonzini 提交于
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: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 08 1月, 2012 2 次提交
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由 Andreas Färber 提交于
Commit a621f38d (Direct dispatch through MemoryRegion) moved byte swaps to a central function. Add a missing break, so that long-sized byte swaps don't abort. Signed-off-by: NAndreas Färber <afaerber@suse.de> Reviewed-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Andreas Färber 提交于
Since commit be675c97 (memory: move endianness compensation to memory core) it was checking for TARGET_BIG_ENDIAN instead of TARGET_WORDS_BIGENDIAN, thereby not swapping correctly for Big Endian targets. Signed-off-by: NAndreas Färber <afaerber@suse.de> Reviewed-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 04 1月, 2012 1 次提交
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由 Avi Kivity 提交于
Unlike ->readonly, ->readable is not inherited from aliase, so we can simply query the memory region. Signed-off-by: NAvi Kivity <avi@redhat.com> Reviewed-by: NRichard Henderson <rth@twiddle.net>
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