The function trap_msix() is to check if pcistg instruction would access
msix table entries. The correct boundary condition should be
[table_offset, table_offset+entries*entry_size). But the current
condition calculated misses the last entry. So let's fixup it.
Acked-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Message-Id: <1503907487-2764-2-git-send-email-zyimin@linux.vnet.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
The storage attribute devices are only meant to be instantiated one
time, internally. They can not be used by the user, so mark them with
user_creatable = false.
Suggested-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1503576029-24264-1-git-send-email-thuth@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Let's do it just like the other architectures. Introduce kvm-stub.c
for stubs and kvm_s390x.h for the declarations.
Change license to GPL2+ and keep copyright notice.
As we are dropping the sysemu/kvm.h include from cpu.h, fix up includes.
Suggested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170818114353.13455-18-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Let's just introduce an helper.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170818114353.13455-17-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
The functions are not used in target/s390x/ so a header in hw/s390x/
is a better place.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170818114353.13455-9-david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
s390-stattrib.c needs definition of TARGET_PAGE_SIZE, solve it via cpu.h.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170818114353.13455-8-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Now we can drop inclusion of "sysemu/kvm.h" from "s390-virtio.c".
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170818114353.13455-7-david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Let's avoid any KVM stuff in s390-virtio-ccw.c. This parameter is simply
ignored.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170818114353.13455-6-david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
No need for kvm_enabled() as this function is only called from KVM and
there is no reason why it shouldn't be allowed for tcg. It is simply not
available under tcg.
Also, there is no need to check for the machine type anymore. Just like
ri_enabled(), we can directly use the stored flag, which results in
"true" for the "none" machine.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170818114353.13455-5-david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Only used in KVM and there is no reason why it shouldn't be allowed for
tcg - it is simply not available.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170818114353.13455-4-david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Not needed at that point.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170818114353.13455-2-david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
QEMU currently aborts if the user tries to create a skey device:
$ s390x-softmmu/qemu-system-s390x -nographic -device s390-skeys-qemu
qemu-system-s390x: hw/s390x/s390-skeys.c:30: s390_get_skeys_device:
Assertion `ss' failed.
Aborted (core dumped)
The storage key devices are only meant to be instantiated one time,
internally. They can not be used by the user, so mark them with
user_creatable = false.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1503569328-22197-1-git-send-email-thuth@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
If we do not provide zpci, pci reconfiguration via sclp is not available
either. I/O adapter configuration, however, should always be present.
Rename the values that refer to I/O adapter configuration (instead of only
pci) to make things clearer.
Move length checking of the sccb for I/O adapter configuration into the
common sclp code (out of the pci code). This also fixes an issue that
the pci code would refer to a field in the sccb before checking whether
it was actually long enough.
Check for the adapter type in the sccb and return unrecognized adapter
type if the guest tries to issue I/O adapter configure/deconfigure for
a type other than pci or for pci if the zpci facility is not provided.
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Don't create the s390 pci host bridge if we do not provide the zpci
facility.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
The nt2 event class is pci-only - don't look for events if pci is
not in the active cpu model.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Some non-pci code calls into zpci code. Provide some stubs for builds
without pci.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
The s390-ipl device can not be created by the user, since it is meant only
to be instantiated once internally to load the ROMs and kernel. If the user
tries to do a "device_add s390-ipl" via the monitor later, QEMU aborts with
a "ROM images must be loaded at startup" error message.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1502861458-30270-1-git-send-email-thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
A successful completion of rchp should signal a solicited channel path
initialized CRW (channel report word), while the current implementation
always generates an un-solicited one. Let's fix this.
Reported-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Message-Id: <20170803003527.86979-3-bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Let's use a macro for the ERC (error recover code) when generating a
Channel Subsystem Event-information pending CRW (channel report word).
While we are at it, let's also add all other ERCs.
Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Message-Id: <20170803003527.86979-2-bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
The only exception are groups of numers separated by symbols
'.', ' ', ':', '/', like 'ab.09.7d'.
This patch is made by the following:
> find . -name trace-events | xargs python script.py
where script.py is the following python script:
=========================
#!/usr/bin/env python
import sys
import re
import fileinput
rhex = '%[-+ *.0-9]*(?:[hljztL]|ll|hh)?(?:x|X|"\s*PRI[xX][^"]*"?)'
rgroup = re.compile('((?:' + rhex + '[.:/ ])+' + rhex + ')')
rbad = re.compile('(?<!0x)' + rhex)
files = sys.argv[1:]
for fname in files:
for line in fileinput.input(fname, inplace=True):
arr = re.split(rgroup, line)
for i in range(0, len(arr), 2):
arr[i] = re.sub(rbad, '0x\g<0>', arr[i])
sys.stdout.write(''.join(arr))
=========================
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20170731160135.12101-5-vsementsov@virtuozzo.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
With the move of some docs/ to docs/devel/ on ac06724a71,
no references were updated.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
According to the PoP bit positions 0-3 and 8-32 of the format-1 CCW must
contain zeros. Bits 0-3 are already covered by cmd_code validity
checking, and bit 32 is covered by the CCW address checking.
Bits 8-31 correspond to CCW1.flags and CCW1.count. Currently we only
check for the absence of certain flags. Let's fix this.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Message-Id: <20170725224442.13383-3-pasic@linux.vnet.ibm.com>
Reviewed-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
[CH: tweaked comment]
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
According to the PoP channel command words (CCW) must be doubleword
aligned and 31 bit addressable for format 1 and 24 bit addressable for
format 0 CCWs.
If the channel subsystem encounters a ccw address which does not satisfy
this alignment requirement a program-check condition is recognised.
The situation with 31 bit addressable is a bit more complicated: both the
ORB and a format 1 CCW TIC hold the address of (the rest of) the channel
program, that is the address of the next CCW in a word, and the PoP
mandates that bit 0 of that word shall be zero -- or a program-check
condition is to be recognized -- and does not belong to the field holding
the ccw address.
Since in code the corresponding fields span across the whole word (unlike
in PoP where these are defined as 31 bit wide) we can check this by
applying a mask. The 24 addressable case isn't affecting TIC because the
address is composed of a halfword and a byte portion (no additional zero
bit requirements) and just slightly complicates the ORB case where also
bits 1-7 need to be zero.
The same requirements (especially n-bit addressability) apply to the
ccw addresses generated while chaining.
Let's make our CSS implementation follow the AR more closely.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Message-Id: <20170727154842.23427-1-pasic@linux.vnet.ibm.com>
Reviewed-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
On NetBSD, where tolower() and toupper() are implemented using an
array lookup, the compiler warns if you pass a plain 'char'
to these functions:
gdbstub.c:914:13: warning: array subscript has type 'char'
This reflects the fact that toupper() and tolower() give
undefined behaviour if they are passed a value that isn't
a valid 'unsigned char' or EOF.
We have qemu_tolower() and qemu_toupper() to avoid this problem;
use them.
(The use in scsi-generic.c does not trigger the warning because
it passes a uint8_t; we switch it anyway, for consistency.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> for the s390 part.
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Message-id: 1500568290-7966-1-git-send-email-peter.maydell@linaro.org
Use the new functions memory_region_init_{ram,rom,rom_device}()
instead of manually calling the _nomigrate() version and then
vmstate_register_ram_global().
Patch automatically created using coccinelle script:
spatch --in-place -sp_file scripts/coccinelle/memory-region-init-ram.cocci -dir hw
(As it turns out, there are no instances of the rom and
rom_device functions that are caught by this script.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1499438577-7674-8-git-send-email-peter.maydell@linaro.org
Rename memory_region_init_ram() to memory_region_init_ram_nomigrate().
This leaves the way clear for us to provide a memory_region_init_ram()
which does handle migration.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1499438577-7674-4-git-send-email-peter.maydell@linaro.org
- add a network boot rom for s390 (Thomas Huth)
- migration of storage attributes like the CMMA used/unused state
- PCI related enhancements - full support for aen, ais and zpci
- migration support for css with vmstates (Halil Pasic)
- cpu model enhancements for cpu features
- guarded storage support
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Merge remote-tracking branch 'remotes/borntraeger/tags/s390x-20170714' into staging
s390x/kvm/migration/cpumodel: fixes, enhancements and cleanups
- add a network boot rom for s390 (Thomas Huth)
- migration of storage attributes like the CMMA used/unused state
- PCI related enhancements - full support for aen, ais and zpci
- migration support for css with vmstates (Halil Pasic)
- cpu model enhancements for cpu features
- guarded storage support
# gpg: Signature made Fri 14 Jul 2017 11:33:04 BST
# gpg: using RSA key 0x117BBC80B5A61C7C
# gpg: Good signature from "Christian Borntraeger (IBM) <borntraeger@de.ibm.com>"
# Primary key fingerprint: F922 9381 A334 08F9 DBAB FBCA 117B BC80 B5A6 1C7C
* remotes/borntraeger/tags/s390x-20170714: (40 commits)
s390x/gdb: add gs registers
s390x/arch_dump: also dump guarded storage control block
s390x/kvm: enable guarded storage
s390x/kvm: Enable KSS facility for nested virtualization
s390x/cpumodel: add esop/esop2 to z12 model
s390x/cpumodel: we are always in zarchitecture mode
s390x/cpumodel: wire up new hardware features
s390x/flic: migrate ais states
s390x/cpumodel: add zpci, aen and ais facilities
s390x: initialize cpu firstly
pc-bios/s390: rebuild s390-ccw.img
pc-bios/s390: add s390-netboot.img
pc-bios/s390-ccw: Link libnet into the netboot image and do the TFTP load
pc-bios/s390-ccw: Add virtio-net driver code
pc-bios/s390-ccw: Add core files for the network bootloading program
roms/SLOF: Update submodule to latest status
pc-bios/s390-ccw: Add code for virtio feature negotiation
pc-bios/s390-ccw: Remove unused structs from virtio.h
pc-bios/s390-ccw: Move byteswap functions to a separate header
pc-bios/s390-ccw: Add a write() function for stdio
...
Conflicts:
target/s390x/kvm.c
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Introduce guarded storage support for KVM guests on s390.
We need to enable the capability, extend machine check validity,
sigp store-additional-status-at-address, and migration.
The feature is fenced for older machine type versions.
Signed-off-by: Fan Zhang <zhangfan@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Add esop and esop2 features to z12 model where esop2 was originally
introduced. Disable esop and esop2 when using compatibility machine
v2.9 or earlier.
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
zPCI instructions and facilities are available since IBM zEnterprise
EC12. To support z/PCI in QEMU we enable zpci, aen and ais facilities
starting with zEC12 GA1. And we always set zpci and aen bits in max cpu
model. Later they might be switched off due to applied real cpu model.
For ais bit, we only provide it in the full cpu model beginning with
zEC12 and defer its enablement in the default cpu model to a later point
in time. At the same time, disable them for 2.9 and older machines.
Because of introducing AIS facility, we could check if it's enabled to
initialize flic->ais_supported with the real value.
Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
By initializing the CPU firstly, we are able to retrieve and use the
CPU model features when initializing other subsystem or devices.
Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Instead of passing around a pointer to ORB let us simplify some
function signatures by using the previously introduced ORB saved at the
subchannel (SubchDev).
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-Id: <20170711145441.33925-7-pasic@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Turn on migration for the channel subsystem for the next machine. For
legacy machines we still have to do things the old way.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-Id: <20170711145441.33925-6-pasic@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Since we are going to need a migration compatibility breaking change to
activate ChannelSubSys migration let us use the opportunity to introduce
ORB to the SubchDev before that (otherwise we would need separate
handling e.g. a compat property).
The ORB will be useful for implementing IDA, or async handling of
subchannel work.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: Guenther Hutzl <hutzl@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-Id: <20170711145441.33925-5-pasic@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Although we have recently vmstatified the migration of some css
infrastructure, for some css entities there is still state to be
migrated left, because the focus was keeping migration stream
compatibility (that is basically everything as-is).
Let us add vmstate helpers and extend existing vmstate descriptions so
that we have everything we need. Let us guard the added state via
css_migration_enabled, so we keep the compatible behavior if css
migration is disabled.
Let's also annotate the bits which do not need to be migrated for better
readability.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20170711145441.33925-4-pasic@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Currently the migration of the channel subsystem (css) is only partial
and is done by the virtio ccw proxies -- the only migratable css devices
existing at the moment.
With the current work on emulated and passthrough devices we need to
decouple the migration of the channel subsystem state from virtio ccw,
and have a separate section for it. A new section however necessarily
breaks the migration compatibility.
So let us introduce a switch at the machine class, and put it in 'off'
state for now. We will turn the switch 'on' for future machines once all
preparations are met. For compatibility machines the switch will stay
'off'.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-Id: <20170711145441.33925-3-pasic@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
We will need the machine class at machine initialization time, so the
usual way via qdev won't do. Let's cache the machine class and also use
the default values of the base machine for capability discovery.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-Id: <20170711145441.33925-2-pasic@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Let's use the new inject_airq callback of flic to inject adapter
interrupts. For kvm case, if the kernel flic doesn't support the new
interface, the irq routine remains unchanged. For non-kvm case,
qemu-flic handles the suppression process.
Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Signed-off-by: Fei Li <sherrylf@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Currently, we do nothing for the SIC instruction, but we need to
implement it properly. Let's add proper handling in the backend code.
Co-authored-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Signed-off-by: Fei Li <sherrylf@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Introduce a new 'flags' field to IoAdapter to contain further
characteristics of the adapter, like whether the adapter is subject to
adapter-interruption suppression.
For the kvm case, pass this value in the 'flags' field when
registering an adapter.
Signed-off-by: Fei Li <sherrylf@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Add an "info" monitor command to non-destructively inspect the state of
the storage attributes of the guest, and a normal command to toggle
migration mode (useful for debugging).
Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Storage attributes device, like we have for storage keys.
Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Unlike other object_property_add_link() occurrences in virtio devices,
virtio-crypto checks the "in use" state of the linked backend object in
addition to qdev_prop_allow_set_link_before_realize. To convert it
without needing to specialize DEFINE_PROP_LINK which always uses the
qdev callback, move the "in use" check to device realize time.
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20170714021509.23681-10-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The remaining non-const ones are in e1000e which modifies description at
runtime. They can be addressed separatedly.
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20170714021509.23681-6-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This finishes QOM'fication of IOMMUMemoryRegion by introducing
a IOMMUMemoryRegionClass. This also provides a fastpath analog for
IOMMU_MEMORY_REGION_GET_CLASS().
This makes IOMMUMemoryRegion an abstract class.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20170711035620.4232-3-aik@ozlabs.ru>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This defines new QOM object - IOMMUMemoryRegion - with MemoryRegion
as a parent.
This moves IOMMU-related fields from MR to IOMMU MR. However to avoid
dymanic QOM casting in fast path (address_space_translate, etc),
this adds an @is_iommu boolean flag to MR and provides new helper to
do simple cast to IOMMU MR - memory_region_get_iommu. The flag
is set in the instance init callback. This defines
memory_region_is_iommu as memory_region_get_iommu()!=NULL.
This switches MemoryRegion to IOMMUMemoryRegion in most places except
the ones where MemoryRegion may be an alias.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20170711035620.4232-2-aik@ozlabs.ru>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
