Avi Kivity [Fri, 10 Feb 2012 12:57:31 +0000 (14:57 +0200)]
memory: remove first level of l1_phys_map
L1 and the lower levels in l1_phys_map are equivalent, except that L1 has
a different size, and is always allocated. Simplify the code by removing
L1. This leaves us with a tree composed solely of L2 tables, but that
problem can be renamed away later.
Avi Kivity [Thu, 9 Feb 2012 15:34:32 +0000 (17:34 +0200)]
memory: change memory registration to rebuild the memory map on each change
Instead of incrementally building the memory map, rebuild it every time.
This allows later simplification, since the code need not consider overlaying
a previous mapping. It is also RCU friendly.
With large memory guests this can get expensive, since the operation is
O(mem size), but this will be optimized later.
As a side effect subpage and L2 leaks are fixed here.
Avi Kivity [Wed, 8 Feb 2012 19:36:02 +0000 (21:36 +0200)]
memory: support stateless memory listeners
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.
Avi Kivity [Wed, 8 Feb 2012 15:01:23 +0000 (17:01 +0200)]
memory: add a readonly attribute to MemoryRegionSection
.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: Avi Kivity <avi@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
Blue Swirl [Sat, 4 Feb 2012 11:47:17 +0000 (11:47 +0000)]
ppc: remove unused variables
Fix this error:
/src/qemu/target-ppc/helper.c: In function 'booke206_tlb_to_page_size':
/src/qemu/target-ppc/helper.c:1296:14: error: variable 'tlbncfg' set but not used [-Werror=unused-but-set-variable]
Tested-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Peter Maydell [Thu, 9 Feb 2012 06:11:16 +0000 (06:11 +0000)]
ARM devboards: Set arm_sysctl properties before init, not after
The ARM devboard models (vexpress-a9, realview, versatilepb, etc)
were accidentally trying to set one of the arm_sysctl properties
after device init. This has now become a fatal error; set the property
before device init where it should be done instead.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Anthony Liguori [Wed, 8 Feb 2012 13:23:55 +0000 (07:23 -0600)]
Merge remote-tracking branch 'aneesh/for-upstream' into staging
* aneesh/for-upstream:
hw/9pfs: Remove O_NOATIME flag from 9pfs open() calls in readonly mode
hw/9pfs: Update MAINTAINERS file
fsdev: Fix parameter parsing for proxy helper
hw/9pfs: Fix crash when mounting with synthfs
hw/9pfs: Preserve S_ISGID
hw/9pfs: Add new security model mapped-file.
Stefan Weil [Thu, 22 Dec 2011 10:18:53 +0000 (11:18 +0100)]
w32: Build windows and console executables
System emulation executables with SDL are typically windows
executables. Sometimes console executables are more useful,
so create both variants if linker option -mwindows was detected.
v2:
This version uses QEMU_PROGW / QEMU_PROG instead of QEMU_PROG / QEMU_PROGC.
Paolo Bonzini [Thu, 2 Feb 2012 12:01:40 +0000 (13:01 +0100)]
qdev: remove parse/print methods for pointer properties
Pointer properties (except for PROP_PTR of course) should not need a
legacy counterpart. In the future, relative paths will ensure that
QEMU will support the same syntax as now for drives etc..
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 2 Feb 2012 16:12:19 +0000 (17:12 +0100)]
qdev: make the non-legacy pci address property accept an integer
PCI addresses are set with qdev_prop_uint32. Thus we make the QOM
property accept a device and function encoded in an 8-bit integer,
instead of the magic dd.f hex string.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 2 Feb 2012 09:17:19 +0000 (10:17 +0100)]
qdev: allow reusing get/set for legacy property
In some cases, a legacy property does need a special print method
but not a special parse method. In this case, we can reuse the get/set
from the static (non-legacy) property.
If neither parse nor print is needed, though, do not register the
legacy property at all. The previous patch ensures that the right
fallback will be used.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 2 Feb 2012 08:47:13 +0000 (09:47 +0100)]
qdev: remove direct calls to print/parse
There's no need to call into ->parse and ->print manually. The
QOM legacy properties do that for us.
Furthermore, in some cases legacy and static properties have exactly
the same behavior, and we could drop the legacy properties right away.
Add an appropriate fallback to prepare for this.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 2 Feb 2012 11:37:53 +0000 (12:37 +0100)]
qom: use object_resolve_path_type for links
This allows to restrict partial matches to objects of the expected
type. It will let people use bare names to reference drives
even though their name might be the same as a device's (e.g.
-drive id=hd0,if=none,... -device ...,drive=hd0,id=hd0).
As a useful byproduct, this fixes a problem with links of interface
type. When a link property's type is an interface, the code expects
the implementation object (not the parent object) to be stored in the
variable. The parent object does not contain the right vtable.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Fri, 3 Feb 2012 10:57:23 +0000 (11:57 +0100)]
qom: clean up/optimize object_dynamic_cast
The interface loop can be performed only on the parent object. It
does not need to be done on each interface. Similarly, we can
simplify the code by switching early from the implementation
object to the parent object.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Blue Swirl [Sat, 4 Feb 2012 12:18:36 +0000 (12:18 +0000)]
Merge branch 'linux-user-for-upstream' of git://git.linaro.org/people/rikuvoipio/qemu
* 'linux-user-for-upstream' of git://git.linaro.org/people/rikuvoipio/qemu:
linux-user: Fix sa_flags byte swaps for mips
linux-user: Define TARGET_QEMU_ESIGRETURN for mips64
linux-user: Define TARGET_QEMU_ESIGRETURN for mipsn32
linux-user: Add default configs for mips64[el]
linux-user: Add default-configs for mipsn32[el]
linux-user: Implement *listxattr syscalls
linux-user/syscall.c: Implement f and l versions of set/get/removexattr
linux-user: Allow NULL value pointer in setxattr and getxattr
linux-user: fix wait* syscall status returns
linux-user/strace.c: Correct errno printing for mmap etc
linux-user: fix QEMU_STRACE=1 segfault
linux-user: add SO_PEERCRED support for getsockopt
linux-user/main.c: Add option to user-mode emulation so that user can specify log file name
linux-user: fake /proc/self/auxv
linux-user: fake /proc/self/stat
linux-user: fake /proc/self/maps
linux-user: add open() hijack infrastructure
linux-user: save auxv length
linux-user: stack_base is now mandatory on all targets
Indeed, compilation failed for w32, so the bridge code is now
conditional. Hosts which don't support it can simply remove the
definition of CONFIG_NET_BRIDGE.
Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Anthony Liguori [Fri, 23 Dec 2011 14:47:39 +0000 (08:47 -0600)]
object: sure up reference counting
Now we have the following behavior:
1) object_new() returns an object with ref = 1
2) object_initialize() does not increase the reference count (ref may be 0).
3) object_deref() will finalize the object when ref = 0. it does not free the
memory associated with the object.
4) both link and child properties correctly set the reference count.
The expected usage is the following:
1) child devices should generally be created via object_initialize() using
memory from the parent device. Adding the object as a child property will
take ownership of the object and tie the child's life cycle to the parent.
2) If a child device is created via qdev_create() or some other form of
object_new(), there must be an object_delete() call in the parent device's
finalize function.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Fri, 23 Dec 2011 14:35:43 +0000 (08:35 -0600)]
qom: accept any compatible type when setting a link property
Links had limited utility before as they only allowed a concrete type to be
specified. Now we can support abstract types and interfaces which means it's
now possible to have a link<PCIDevice>.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Mon, 30 Jan 2012 14:55:55 +0000 (08:55 -0600)]
qom: move properties from qdev to object
This is mostly code movement although not entirely. This makes properties part
of the Object base class which means that we can now start using Object in a
meaningful way outside of qdev.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Thu, 22 Dec 2011 20:40:54 +0000 (14:40 -0600)]
qom: add new command to search for types
This adds a command that allows searching for types that implement a property.
This allows you to do things like search for all available PCIDevices. In the
future, we'll also have a standard interface for things with a BlockDriverState
property that a PCIDevice could implement.
This will enable search queries like, "any type that implements the BlockDevice
interface" which would allow management tools to present available block devices
without having to hard code device names. Since an object can implement
multiple interfaces, one device could act both as a BlockDevice and a
NetworkDevice.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Thu, 22 Dec 2011 17:05:00 +0000 (11:05 -0600)]
qdev: remove baked in notion of aliases (v2)
Limit them to the device_add functionality. Device aliases were a hack based
on the fact that virtio was modeled the wrong way. The mechanism for aliasing
is very limited in that only one alias can exist for any device.
We have to support it for the purposes of compatibility but we only need to
support it in device_add so restrict it to that piece of code.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
v1 -> v2
- Use a table for aliases (Paolo)
Anthony Liguori [Thu, 8 Dec 2011 03:34:16 +0000 (21:34 -0600)]
qdev: register all types natively through QEMU Object Model
This was done in a mostly automated fashion. I did it in three steps and then
rebased it into a single step which avoids repeatedly touching every file in
the tree.
The first step was a sed-based addition of the parent type to the subclass
registration functions.
The second step was another sed-based removal of subclass registration functions
while also adding virtual functions from the base class into a class_init
function as appropriate.
Finally, a python script was used to convert the DeviceInfo structures and
qdev_register_subclass functions to TypeInfo structures, class_init functions,
and type_register_static calls.
We are almost fully converted to QOM after this commit.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Sun, 4 Dec 2011 22:13:14 +0000 (16:13 -0600)]
usb-hid: simplify class initialization a bit
We can probably model USBHidDevice as a base class to get even better code
sharing but for now, just use a common function to initialize the common class
members.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>