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Frees the identifier cpu_reset for QOM CPUs (manual rename).
Don't hide the parameter type behind explicit casts, use static
functions with strongly typed argument to indirect.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
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On ppc405ep there is a register that allows for software to reset the
core, but not the whole system. Implement this reset using a reset
interrupt.
This gets rid of a bunch of #if 0'ed code.
Reported-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>
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This function allows to obtain a singly-linked list of classes, which
can be sorted by the caller.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Cc: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Function name type_class_init() gave us a wrong impression of separation
of type's "class" and "object" entities initialization. Name type_initialize()
is more appropriate for type_class_init() function (considering what operations
it performs).
Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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QOM documentation states that for objects of type with @instance_size == 0 size
will be assigned to match parent object's size. But currently this feauture is
not implemented and qemu asserts during creation of object with zero instance_size.
Set appropriate value for type instance_size during type_class_init() call.
object_initialize_with_type() must call type_class_init() before asserting
type->instance_size, and object_new_with_type() must call type_class_init() before
object allocation.
Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The kvmvapic code remaps a section of ROM as RAM to allow the guest to
maintain state there. It is careful to align the section size to a page
boundary, to avoid creating subpages, but neglects to do the same for
the start address. These leads to an assert later on when the memory
core tries to create a page which is half RAM and half ROM.
Fix by aligning the start address to a page boundary.
This can be triggered by running qemu-system-x86_64 -enable-kvm -vga none.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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* kiszka/queues/slirp:
slirp: Fix compiler warning for w64
slirp: Cleanup resources on instance removal
slirp: Remove unneeded if_queued
slirp: Fix queue walking in if_start
slirp: Prevent recursion of if_start
slirp: Keep next_m always valid
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* kraxel/usb.44:
Endian fix an assertion in usb-msd
uhci: alloc can't fail, drop check.
uhci: new uhci_handle_td return code for tds still in flight
uhci: renumber uhci_handle_td return codes
uhci: use enum for uhci_handle_td return codes
uhci: tracing support
uhci: cancel on schedule stop.
uhci: fix uhci_async_cancel_all
uhci: pass addr to uhci_async_alloc
usb: improve packet state sanity checks
usb-ohci: DMA writeback bug fixes
usb-ehci: drop unused isoch_pause variable
usb: zap hw/ush-{ohic,uhci}.h + init wrappers
usb: the big rename
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Link the Object base class and the module infrastructure for class
registration. Introduce $(universal-obj-y) for objects that are more
common than $(common-obj-y), so that those only get built once.
Call QOM module init for type registration.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Cc: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The constructors for QOM TYPE_INTERFACE were executed rather late in
vl.c's main(). Call them very early so that QOM can safely be used for
machines and CPUs.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Cc: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Currently, the "kvmclock" type is only registered when kvm_enabled().
This breaks when moving type registration to before command line
parsing (so that QOM types can be used for CPU and machine).
Since the QOM classes are lazy-initialized anyway and kvmclock_create()
has another kvm_enabled() check, simply drop the KVM check in
kvmclock_register_types().
kvm-i8259, kvm-apic and kvm-ioapic do not suffer from such a check.
Reviewed-by: please.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Casting a pointer to an integer value must use uintptr_t or intptr_t
(not long) for portable code. MinGW-w64 requires this because
sizeof(long) != sizeof(void *) for w64 hosts, so casting to long
raises a compiler warning.
I use uintptr_t instead of intptr_t because changing the sign does not
matter here and casting pointers to unsigned values seems more
reasonable (the unsigned value is a non negative offset.
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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Close & free sockets when shutting down a slirp instance, also release
all buffers.
CC: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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There is now a trivial check on entry of if_start for pending packets,
so we can drop the additional tracking via if_queued.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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Another attempt to get this right: We need to carefully walk both the
fastq and the batchq in if_start while trying to send packets to
possibly not yet resolved hosts on the virtual network.
So far we just requeued a delayed packet where it was and then started
walking the queues from the top again - that couldn't work. Now we pre-
calculate the next packet in the queue so that the current one can
safely be removed if it was sent successfully. We also need to take into
account that the next packet can be from the same session if the current
one was sent and there are no other sessions.
CC: Fabien Chouteau <chouteau@adacore.com>
CC: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
CC: Stefan Weil <sw@weilnetz.de>
Tested-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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if_start can be called recursively via if_encap. Avoid this as our
scheme of dequeuing packets is not compatible with this.
CC: Fabien Chouteau <chouteau@adacore.com>
CC: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
CC: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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Make sure that next_m always points to a packet if batchq is non-empty.
This will simplify walking the queues in if_start.
CC: Fabien Chouteau <chouteau@adacore.com>
CC: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
CC: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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This fixes a broken endian assumption in an assertion in usb-msd.
Cc: Gerd Hoffman <kraxel@redhat.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Step #2 (separate for better bisectability): renumber so the silly '-1'
goes away. Pick a range which doesn't overlap the old values.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Step #1 (separate for better bisectability): replace numbers with names.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Zap DPRINTF, add tracepoints instead.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Cancel any in-flight transaction when the guest stops the uhci schedule.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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It should also free all queues.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Also do async->td initialization in uhci_async_alloc now.
Prepares for adding tracepoints.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Add a new function to check whenever the packet state is as expected,
log more informations in case it isn't.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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This patch fixes two bugs in the OHCI device where the device writes
back data to system memory that should be exclusively under the
control of the guest side driver.
In OHCI specification Section 5.2.7, it mentioned "In all cases, Host
Controller Driver is responsible for the insertion and removal of all
Endpoint Descriptors in the various Host Controller Endpoint
Descriptor lists". In the ohci_frame_boundary(), ohci_put_hcca()
writes the entire hcca back including the interrupt ED lists which
should be under driver control. This violates the specification and
can race with a host driver updating that list at the same time.
In the OHCI Spec Section 4.6, Transfer Descriptor Queue Processing, it
mentioned "Since the TD pointed to by TailP is not accessed by the HC,
the Host Controller Driver can initialize that TD and link at least
one other to it without creating a coherency or synchronization
problem". While the function ohci_put_ed() writes the entire endpoint
descriptor back including the TailP which should under driver
control. This violate the specification and can race with a host
driver updating the TD list at the same time.
In each case the solution is to make sure we don't write data which is
under driver control.
Cc: Gerd Hoffman <kraxel@redhat.com>
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Remove the uhci and ohci init wrappers, which all wrapped a
pci_create_simple() one-liner. Switch callsites to call
pci_create_simple directly. Remove the header files where
the wrappers where declared.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Reorganize usb source files. Create a new hw/usb/ directory and move
all usb source code to that place. Also make filenames a bit more
descriptive. Host adapters are prefixed with "hch-" now, usb device
emulations are prefixed with "dev-". Fixup paths Makefile and include
paths to make it compile. No code changes.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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* mdroth/qga-pull-3-12-2012:
qemu-ga: add guest-sync-delimited
qemu-ga: add guest-network-get-interfaces command
qemu-ga: add win32 guest-suspend-ram command
qemu-ga: add win32 guest-suspend-disk command.
qemu-ga: add guest-suspend-hybrid
qemu-ga: add guest-suspend-ram
qemu-ga: add guest-suspend-disk
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* kwolf/for-anthony:
test-coroutine: add performance test for nesting
coroutine: adding configure option for sigaltstack coroutine backend
coroutine: adding configure choose mechanism for coroutine backend
coroutine: adding sigaltstack method (.c source)
qcow2: Reduce number of I/O requests
qcow2: Add qcow2_alloc_clusters_at()
qcow2: Factor out count_cow_clusters
qmp: convert blockdev-snapshot-sync to a wrapper around transactions
add mode field to blockdev-snapshot-sync transaction item
rename blockdev-group-snapshot-sync
qapi: complete implementation of unions
use QSIMPLEQ_FOREACH_SAFE when freeing list elements
Add 'make check-block'
make check: Add qemu-iotests subset
qemu-iotests: Mark some tests as quick
qcow2: Add error messages in qcow2_truncate
block: handle -EBUSY in bdrv_commit_all()
qcow2: Add some tracing
qed: do not evict in-use L2 table cache entries
Group snapshot: Fix format name for backing file
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* qemu-kvm/memory/core:
memory: get rid of cpu_register_io_memory()
memory: dispatch directly via MemoryRegion
exec: fix code tlb entry misused as iotlb in get_page_addr_code()
memory: store section indices in iotlb instead of io indices
memory: make phys_page_find() return an unadjusted section
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* stefanha/tracing:
vga: add trace event for ppm_save
console: add some trace events
maintainers: Add docs/tracing.txt to Tracing
docs: correct ./configure line in tracing.txt
trace: make trace_thread_create() use its function arg
tracetool: Omit useless QEMU_*_ENABLED() check
trace: Provide a per-event status define for conditional compilation
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* qmp/queue/qmp:
qapi-schema.json: fix comment for type ObjectPropretyInfo
qapi-schema: fix typos and explain 'spice' auth
qjson.h: include compiler.h for GCC_FMT_ATTR
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guest-sync leaves it as an exercise to the user as to how to reliably
obtain the response to guest-sync if the client had previously read in a
partial response (due qemu-ga previously being restarted mid-"sentence"
due to reboot, forced restart, etc).
qemu-ga handles this situation on its end by having a client precede
their guest-sync request with a 0xFF byte (invalid UTF-8), which
qemu-ga/QEMU JSON parsers will treat as a flush event. Thus we can
reliably flush the qemu-ga parser state in preparation for receiving
the guest-sync request.
guest-sync-delimited provides the same functionality for a client: when
a guest-sync-delimited is issued, qemu-ga will precede it's response
with a 0xFF byte that the client can use as an indicator to flush its
buffer/parser state in preparation for reliably receiving the
guest-sync-delimited response.
It is also useful as an optimization for clients, since, after issuing a
guest-sync-delimited, clients can safely discard all stale data read
from the channel until the 0xFF is found.
More information available on the wiki:
http://wiki.qemu.org/Features/QAPI/GuestAgent#QEMU_Guest_Agent_Protocol
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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This command returns an array of:
[ifname, hwaddr, [ipaddr, ipaddr_family, prefix] ]
for each interface in the system.
Currently, only IPv4 and IPv6 are supported.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
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S3 sleep implementation for windows.
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Implement guest-suspend-disk RPC for Windows. Functionally this should be
equivalent to the posix implementation.
Signed-off-by: Gal Hammer <ghammer@redhat.com>
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Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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As the command name implies, this command suspends the guest to disk.
The suspend operation is implemented by two functions: bios_supports_mode()
and guest_suspend(). Both functions are generic enough to be used by
other suspend modes (introduced by next commits).
Both functions will try to use the scripts provided by the pm-utils
package if it's available. If it's not available, a manual method,
which consists of directly writing to '/sys/power/state', will be used.
To reap terminated children, a new signal handler is installed in the
parent to catch SIGCHLD signals and a non-blocking call to waitpid()
is done to collect their exit statuses. The statuses, however, are
discarded.
The approach used to query the guest for suspend support deserves some
explanation. It's implemented by bios_supports_mode() and shown below:
qemu-ga
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create pipe
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fork()
-----------------
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| fork()
| --------------------------
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| | exec('pm-is-supported')
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| wait()
| write exit status to pipe
| exit
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read pipe
This might look complex, but the resulting code is quite simple.
The purpose of that approach is to allow qemu-ga to reap its children
(semi-)automatically from its SIGCHLD handler.
Implementing this the obvious way, that's, doing the exec() call from
the first child process, would force us to introduce a more complex way
to reap qemu-ga's children. Like registering PIDs to be reaped and
having a way to wait for them when returning their exit status to
qemu-ga is necessary. The approach explained above avoids that complexity.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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Cast the argument of the g2h() macro to a target_ulong so that
it isn't accidentally sign-extended if it is a signed 32 bit
type and long is a 64 bit type. In particular, this fixes a
bug where it would return the wrong value for 32 bit guests
on 64 bit hosts when passed in one of the arg* values from
do_syscall() [which are all abi_long and thus signed types].
This could result in spurious failure of mlock(), among others.
Reviewed-by: Andreas F=E4rber <afaerber@suse.de>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The comment is wrong, we have to do something in the setdata callback.
Changing the framebuffer backing storage (happens when the guest pans
the display) renders the whole screen content invalid.
Trigger #1: cirrus vga + 32bit linux guest + vesafb with ypan enabled.
Trigger #2: std vga + http://patchwork.ozlabs.org/patch/145479/
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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To properly load cpudefs using -readconfig, we have to call
cpudef_init() after finishing the command-line option handling.
Consequently, the handling of "-cpu ?" has to be done after the
command-line option handling loop, too.
Without this patch, "-readconfig configfile -cpu ?" fails to list the
CPU definitions read from 'configfile'.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This patch addes a Bulldozer-based Opteron_G4 CPU model.
This version has the ffxsr bit actually disabled, to match what was
documented below. Thanks to Andre Przywara for spotting the bug.
I am trying to be conservative with the new model, so I am enabling only
features known to be useful to guests, and not enabling anything that
was not tested or found to be useful to a guest.
List of missing flags in comparison to real hardware:
- vme: host-specific feature.
- osxsave: it is not set here because it is set by the guest OS, not by KVM
- monitor: this is filtered out by the KVM module, so no point in
enabling it.
- mmxext: untested, so not enabled.
- Perf*, Topology*, lwp, ibs: not emulated by KVM.
- wdt, skinit, osvw, altmovcr8, extapicspace, cmplegacy: untested,
so not enabled.
List of new flags, in comparison to the Opteron_G3 model:
- xsave: xsave feature, already implemented by Qemu
- avx, aes, sse4.x, ssse3, pclmulqdq: all new state the new instructions
could use is handled by the xsave state loading/saving code on Qemu.
- pdpe1gb: 1GB pages, supported by the KVM kernel module.
- ffxsr: untested, so not enabled
- fma4, xop: all new state the new instructions could use is handled by
the xsave loading/saving code on Qemu.
- 3dnowprefetch: safe to pass through, though the flag is not used by
Linux guests, at least.
Below is the comparison between the current Opteron_G3 model
and the new model being added.
- The "full" line contains the flags found on actual hardware.
- The "missing" line shows the flags that are present on actual
hardware, but not on the added Opteron_G4 model.
- The "new" line shows the flags that were not on the Opteron_G3 model
but are on Opteron_G4.
feature_edx:
Opteron_G3: sse2 sse fxsr mmx clflush pse36 pat cmov mca pge mtrr sep apic cx8 mce pae msr tsc pse de fpu
full: sse2 sse fxsr mmx clflush pse36 pat cmov mca pge mtrr sep apic cx8 mce pae msr tsc pse de vme fpu
Opteron_G4: sse2 sse fxsr mmx clflush pse36 pat cmov mca pge mtrr sep apic cx8 mce pae msr tsc pse de fpu
missing: vme
feature_ecx:
Opteron_G3: popcnt cx16 monitor sse3
full: avx osxsave xsave aes popcnt sse4.2 sse4.1 cx16 ssse3 monitor pclmulqdq sse3
Opteron_G4: avx xsave aes popcnt sse4.2 sse4.1 cx16 ssse3 pclmulqdq sse3
missing: osxsave monitor
new: avx xsave aes sse4.2 sse4.1 ssse3 pclmulqdq
extfeature_edx:
Opteron_G3: lm rdtscp fxsr mmx nx pse36 pat cmov mca pge mtrr syscall apic cx8 mce pae msr tsc pse de fpu
full: lm rdtscp pdpe1gb ffxsr fxsr mmx mmxext nx pse36 pat cmov mca pge mtrr syscall apic cx8 mce pae msr tsc pse de vme fpu
Opteron_G4: lm rdtscp pdpe1gb fxsr mmx nx pse36 pat cmov mca pge mtrr syscall apic cx8 mce pae msr tsc pse de fpu
missing: mmxext vme
new: pdpe1gb
extfeature_ecx:
Opteron_G3: misalignsse sse4a abm svm lahf_lm
full: Perf* Topology* fma4 lwp wdt skinit xop ibs osvw 3dnowprefetch misalignsse sse4a abm altmovcr8 extapicspace svm cmplegacy lahf_lm
Opteron_G4: fma4 xop 3dnowprefetch misalignsse sse4a abm svm lahf_lm
new: fma4 xop 3dnowprefetch
missing: Perf* Topology* lwp wdt skinit ibs osvw altmovcr8 extapicspace cmplegacy
Changes v1 -> v2:
- Actually disable ffxsr bit
Cc: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This patches add the definition of a SandyBridge CPU model.
Summary of differences:
Flags present on actual hardware, but not on the added model definition:
- pbe, tm, ht, ss, acpi, vme, xTPR, tm2, eist, smx: host-specific
features, not exposed to guest.
- ds, ds-cpl, dtes64, pdcm: emulation not supported by KVM (although it
may be added in the future if implementing PMU virtualization)
- pcid, vmx, monitor: not emulated by Qemu/KVM right now.
- osxsave: set by the guest OS, not by Qemu.
Flags added, that were not present on Westmere model:
- xsave: already supported by Qemu
- avx, pclmulqdq: all new state the new instructions could use is
handled by xsave state loading/saving code.
- tsc-deadline, x2apic, rdtscp: already supported by Qemu/KVM.
Below there's a comparison of the features on the current Westmere CPU
model, and the SandyBridge CPU model.
- The "full" line contains the flags found on actual hardware.
- The "missing" line shows the flags that are present on actual
hardware, but not on the added SandyBridge model.
- The "new" line shows the flags that were not on the Westmere model,
but are on SandyBridge.
feature_edx:
Westmere: sse2 sse fxsr mmx clflush pse36 pat cmov mca pge mtrr sep apic cx8 mce pae msr tsc pse de fpu
full: pbe tm ht ss sse2 sse fxsr mmx ds acpi clflush pse36 pat cmov mca pge mtrr sep apic cx8 mce pge msr tsc pse de vme fpu
SandyBridge: sse2 sse fxsr mmx clflush pse36 pat cmov mca pge mtrr sep apic cx8 mce pae msr tsc pse de fpu
missing: pbe tm ht ss ds acpi vme
feature_ecx:
Westmere: aes popcnt sse4.2 sse4.1 cx16 ssse3 sse3
full: avx osxsave xsave aes tsc-deadline popcnt x2apic sse4.2 sse4.1 pcid pdcm xTPR cx16 ssse3 tm2 eist smx vmx ds-cpl monitor dtes64 pclmulqdq sse3
SandyBridge: avx xsave aes tsc-deadline popcnt x2apic sse4.2 sse4.1 cx16 ssse3 pclmulqdq sse3
missing: osxsave pcid pdcm xTPR tm2 eist smx vmx ds-cpl monitor dtes64
new: avx xsave tsc-deadline x2apic pclmulqdq
extfeature_edx:
Westmere: i64 nx syscall
full: i64 rdtscp nx syscall
SandyBridge: i64 rdtscp nx syscall
new: rdtscp
extfeature_ecx:
Westmere: lahf_lm
full: lahf_lm
SandyBridge: lahf_lm
Cc: "Dugger, Donald D" <donald.d.dugger@intel.com>
Cc: "Zhang, Xiantao" <xiantao.zhang@intel.com>
Acked-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Property removal modifies the list, so it is not safe to continue
iteration. We know anyway that each object can have only one
parent (see object_property_add_child), so exit after finding
the requested object.
Reported-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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