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>
* qemu-kvm/memory/page_desc: (22 commits)
Remove cpu_get_physical_page_desc()
sparc: avoid cpu_get_physical_page_desc()
virtio-balloon: avoid cpu_get_physical_page_desc()
vhost: avoid cpu_get_physical_page_desc()
kvm: avoid cpu_get_physical_page_desc()
memory: remove CPUPhysMemoryClient
xen: convert to MemoryListener API
memory: temporarily add memory_region_get_ram_addr()
xen, vga: add API for registering the framebuffer
vhost: convert to MemoryListener API
kvm: convert to MemoryListener API
kvm: switch kvm slots to use host virtual address instead of ram_addr_t
memory: add API for observing updates to the physical memory map
memory: replace cpu_physical_sync_dirty_bitmap() with a memory API
framebuffer: drop use of cpu_physical_sync_dirty_bitmap()
loader: remove calls to cpu_get_physical_page_desc()
framebuffer: drop use of cpu_get_physical_page_desc()
memory: introduce memory_region_find()
memory: add memory_region_is_logging()
memory: add memory_region_is_rom()
...
* aneesh/for-upstream:
scripts/analyse-9p-simpletrace.py: Add symbolic names for 9p operations.
hw/9pfs: iattr_valid flags are kernel internal flags map them to 9p values.
hw/9pfs: Use the correct signed type for different variables
hw/9pfs: replace iovec manipulation with QEMUIOVector
qemu-kvm passes numa/SRAT topology information for smp_cpus to SeaBIOS. However
SeaBIOS always expects to setup max_cpus number of SRAT cpu entries
(MaxCountCPUs variable in build_srat function of Seabios). When qemu-kvm runs
with smp_cpus != max_cpus (e.g. -smp 2,maxcpus=4), Seabios will mistakenly use
memory SRAT info for setting up CPU SRAT entries for the offline CPUs. Wrong
SRAT memory entries are also created. This breaks NUMA in a guest.
Fix by setting up SRAT info for max_cpus in qemu-kvm.
Signed-off-by: Vasilis Liaskovitis <vasilis.liaskovitis@profitbricks.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
There's no need to check if ports can accept any incoming data from the
guest each time the guest sends data. Check if the port implements such
functionality during port initialisation.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The earlier code really was a hack: initialising class methods in an
object init function as noted by Anthony.
The motivation for that was to not have the virtio-serial-bus call into
the callback functions if there was no chardev backend registered.
However, that really wasn't a worthwhile optimisation, and definitely
not one that was well-implemented. Get rid of it.
Reported-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
For the callback functions invoked by the virtio-serial-bus code, check
if we have chardev backends registered before we call into the chardev
functions.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reported-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Kernel internal values can change, add protocol values for these constant and
use them.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
The v9fs_read() and v9fs_write() functions rely on iovec[] manipulation
code should be replaced with QEMUIOVector to avoid duplicating code.
In the future it may be possible to make the code even more concise by
using QEMUIOVector consistently across virtio and 9pfs.
The "v" format specifier for pdu_marshal() and pdu_unmarshal() is
dropped since it does not actually pack/unpack anything. The specifier
was also not implemented to update the offset variable and could only be
used at the end of a format string, another sign that this shouldn't
really be a format specifier. Instead, see the new
v9fs_init_qiov_from_pdu() function.
This change avoids a possible iovec[] buffer overflow when indirect
vrings are used since the number of vectors is now limited by the
underlying VirtQueueElement and cannot be out-of-bounds.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Response format r6 includes a subset of the status bits;
clear the clear-on-read bits which are read by an r6 response.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Fix some bugs in our implementation of the APP_CMD status bit:
* the response to an ACMD should have APP_CMD set, not cleared
* if an illegal ACMD is sent then the next command should be
handled as a normal command
This requires that we split "card is expecting an ACMD" from
the state of the APP_CMD status bit (the latter indicates
both "expecting ACMD" and "that was an ACMD").
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Correct how we handle the type B ("cleared on valid command")
status bits. In particular, the CURRENT_STATE bits in a response
should be the state of the card when it received that command,
not the state when it received the preceding command. (This is
one of the issues noted in LP:597641.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
App commands in an invalid state should set ILLEGAL_COMMAND, not
merely return a zero response.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Handle returning CRC and locked-card errors in the same code path
we use for other responses. This makes no difference in behaviour
but means that these error responses will be printed by the debug
logging code.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Add an extra sd_illegal value to the sd_rsp_type_t enum so that
sd_app_command() and sd_normal_command() can tell sd_do_command()
that the command was illegal. This is needed so we can do things
like reset certain status bits only on receipt of a valid command.
For the moment, just use it to pull out the setting of the
ILLEGAL_COMMAND status bit into sd_do_command().
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Fix a typo that meant that ADDRESS_ERRORs setting or clearing write
protection would clear every other bit in the status register.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
If we fail to validate the CRC for an SD command we should be setting
COM_CRC_ERROR, not clearing it. (This bug actually has no effect currently
because sd_req_crc_validate() always returns success.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Add a clarifying comment about what the CARD_STATUS_[ABC]
macros are defining.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Fix bugs in the code determining whether to accept a command when the
SD card is locked. Most notably, we had the condition completely
reversed, so we would accept all the commands we should refuse and
refuse all the commands we should accept. Correct this by refactoring
the enormous if () clause into a separate function.
We had also missed ACMD42 off the list of commands which are accepted
in locked state: add it.
This is one of the two problems reported in LP:597641.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Now that all sysbus MMIO regions are MemoryRegions, mmio[n].memory
is never NULL, and we can remove some unnecessary conditionals.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
NULL is a valid bus/device, so there is no change in behaviour.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Xen currently uses the name of a memory region to determine whether it
is the framebuffer. Replace with an explicit API.
Signed-off-by: Avi Kivity <avi@redhat.com>
Drop the use of cpu_register_phys_memory_client() in favour of the new
MemoryListener API. The new API simplifies the caller, since there is no
need to deal with splitting and merging slots; however this is not exploited
in this patch.
Signed-off-by: Avi Kivity <avi@redhat.com>
The peripheral[-anon] containers are initialized lazily but since they sit on
sysbus, they can not be created after realize. This was causing an abort() to
occur during hotplug if no -device option was used.
This was spotted by qemu-test::device-add.sh
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This function is not longer in use so remove it.
Signed-off-by: Benoît Canet <benoit.canet@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Expose only one container MemoryRegion to sysbus.
(Peter Maydell's idea)
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Benoît Canet <benoit.canet@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The isa region is not exposed as a sysbus region because the iobr
register contains its address and use it to remap dynamically
the region. (Peter Maydell's idea)
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Benoît Canet <benoit.canet@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Push legacy properties into a "legacy-..." namespace, and make them
available with correct types too.
For now, all properties come in both variants. This need not be the
case for string properties. We will revisit this after -device is
changed to actually use the legacy properties.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This patch adds a visitor interface to Property. This way, QOM will be
able to expose Properties that access a fixed field in a struct without
exposing also the everything-is-a-string "feature" of qdev properties.
Whenever the printed representation in both QOM and qdev (which is
typically the case for device backends), parse/print code can be reused
via get_generic/set_generic. Dually, whenever multiple PropertyInfos
have the same representation in both the struct and the visitors the
code can be reused (for example among all of int32/uint32/hex32).
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Avi Kivity