| Age | Commit message (Collapse) | Author |
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We disabled ais for 2.10, so let's also remove it from the z14
default model.
Fixes: 3f2d07b3b01e ("s390x/ais: for 2.10 stable: disable ais facility")
CC: qemu-stable@nongnu.org
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20170927072030.35737-2-borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
(cherry picked from commit 9dacc908462693719d84ec594e839434959cf6f1)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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The migration interface for ais was introduced with kernel 4.13
but the capability itself had been active since 4.12. As migration
support is considered necessary lets disable ais in the 2.10
stable version. A proper fix and re-enablement will be done
for qemu 2.11.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20170921140834.14233-2-borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
(cherry picked from commit 3f2d07b3b01ea61126b382633ab4006320923048)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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Found by Coverity (CID 1378273).
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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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>
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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>
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0 is certainly wrong. Let's use ILEN_AUTO.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170721125609.11117-3-david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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The instruction is 4 bytes long.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170721125609.11117-2-david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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When initiating a program check interruption by calling program_interrupt
the instruction length (ilen) of the current instruction is supplied as
the third parameter.
On s390x all the IO instructions are of instruction format S and their
ilen is 4. The calls to program_interrupt (introduced by commits
7b18aad543 ("s390: Add channel I/O instructions.", 2013-01-24) and
61bf0dcb2e ("s390x/ioinst: Add missing alignment checks for IO
instructions", 2013-06-21)) however use ilen == 2.
This is probably due to a confusion between ilen which specifies the
instruction length in bytes and ILC which does the same but in halfwords.
If kvm_enabled() this does not actually matter, because the ilen
parameter of program_interrupt is effectively unused.
Let's provide the correct ilen to program_interrupt.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Fixes: 7b18aad543 ("s390: Add channel I/O instructions.")
Fixes: 61bf0dcb2e ("s390x/ioinst: Add missing alignment checks for IO instructions")
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170724143452.55534-1-pasic@linux.vnet.ibm.com>
Reviewed-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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Adding some CONFIG_TCG tests to be finally able to compile QEMU
on s390x also without TCG.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1500886370-14572-6-git-send-email-thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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These functions can not be compiled with --disable-tcg. But since we
need the other functions from helper.c in the non-tcg build, we can also
not simply remove helper.c from the non-tcg builds. Thus the problematic
functions have to be moved into a separate new file instead that we
can later omit in the non-tcg builds.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1500886370-14572-5-git-send-email-thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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misc_helper.c won't be compiled with --disable-tcg anymore, but we
still need the program_interrupt() function in that case. Move it
to interrupt.c instead, and refactor it to re-use the code from
trigger_pgm_exception() (for TCG) and enter_pgmcheck() (for KVM,
which now got renamed to kvm_s390_program_interrupt() for
clarity).
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1500886370-14572-4-git-send-email-thuth@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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misc_helper.c won't be compiled with --disable-tcg anymore, but we
still need the diag helpers in KVM builds, too, so move the helper
functions to a separate file.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1500886370-14572-3-git-send-email-thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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translate.c can not be compiled with --disable-tcg, but we need
the s390_cpu_dump_state() in KVM-only builds, too. So let's move
that function to helper.c instead, which will also be compiled
when --disable-tcg has been specified.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1500886370-14572-2-git-send-email-thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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There are certain features that we put into base models, but that are
not relevant for the actual search. The most famous example are
MSA subfunctions that might be disabled on certain real hardware out
there.
While the kvm host model detection will usually detect the correct model
on such machines (as it will in the common case not pass features to check
for into s390_find_cpu_def()), baselining will fall back to a quite old
model just because some MSA subfunctions are missing.
Let's improve that by ignoring lack of these features while performing
the search for a base model.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170720123721.12366-6-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170720123721.12366-5-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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Using ordinary bitmap operations to set/test bits does not work properly
on architectures !s390x. Let's drop (test|set)_bit_inv and introduce
(test|set)_be_bit instead. These functions work on uint8_t array, not on
unsigned longs arrays and are for now only used in the context of
CPU features.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170720123721.12366-4-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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We'll have to do the same for TCG, so let's just move it in there.
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170720123721.12366-3-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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Unused and broken, let's just get rid of it.
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170720123721.12366-2-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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The SIE_KSS feature will allow a guest to use KSS for a nested guest.
To create a nested guest the SIE_F2 facility is still necessary.
Since SIE_F2 is not part of the default model it does not make
a lot of sense to provide the SIE_KSS feature in the default model.
Let's also create a dependency check.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Message-Id: <1500550051-7821-2-git-send-email-borntraeger@de.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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Needed to implement a target-agnostic gen_intermediate_code()
in the future.
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Alex Benneé <alex.benee@linaro.org>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Message-Id: <150002025498.22386.18051908483085660588.stgit@frigg.lan>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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staging
s390: add z14 cpu model
- add a CPU model for the IBM z14 which was announced on July 17th 2017
- update linux headers to 4.13-rc0 to get a fix for an ioctl definition
# gpg: Signature made Tue 18 Jul 2017 09:56:24 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-20170718:
s390x/cpumodel: z14 cpu models
linux header sync against v4.13-rc1
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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This patch introduces the CPU model for z14, along with all base and
optional features.
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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The rotation is to the left, but extract shifts to the right.
The computation of the extract parameters needs adjusting.
For the entry condition, simplify
64 - rot + len <= 64
-rot + len <= 0
len <= rot
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reported-by: David Hildenbrand <david@redhat.com>
Suggested-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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STFL bit 4 and 5 are just indications to the guest, which TLB entries an
IDTE call will clear. These are performance indicators for the guest.
STFL bit 4:
INVALIDATE DAT TABLE ENTRY (IDTE) performs
the invalidation-and-clearing operation by
selectively clearing TLB segment-table entries
when a segment-table entry or entries are
invalidated. IDTE also performs the clearing-by-
ASCE operation. Unless bit 4 is one, IDTE simply
purges all TLBs. Bit 3 is one if bit 4 is one.
We can simply set STFL bit 4 ("idtes") and still purge the complete TLB.
Purging more than advertised is never bad. E.g. Linux doesn't even care
about this bit. We can optimized this later.
This is helpful, as the z9 base model contains this facility.
STFL bit 5 (clearing TLB region-table-entries) was never implemented on
real HW, therefore we can simply ignore it for now.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170627161032.5014-1-david@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Drop TRT from the set of insns handled internally by EXECUTE.
It's more important to adjust the existing helper to handle
both TRT and TRTR.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Since we require all registers saved on input, read R0 from ENV instead
of passing it manually. Recognize the specification exception when R0
contains incorrect data. Keep high bits of result registers unmodified
when in 31 or 24-bit mode.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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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>
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Let's provide the guarded storage registers via gdb server.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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Write the new note section of type 30b (guarded storage control block).
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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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>
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If the host supports keyless subset (KSS) then first level
guest (G2) should enable KSS facility as well.
Signed-off-by: Farhan Ali <alifm@linux.vnet.ibm.com>
Reviewed-by: Eric Farman <farman@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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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>
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In QEMU, a guest VCPU always started in and never was able to leave
z/Architecture mode. Now we have an architected way of showing this
condition.
The SIGP SET ARCHITECTURE instruction is simply rejected. Linux as guest
seems to not care about the return value, which is a good thing
The new handling is just like already being in z/Architecture mode.
We'll not try to fake absence of this facility, but still not indicate
the facility in case some strange CPU model turned z/Architecture off
completely (which doesn't work either way but let's us see how a
guest would react on a lack of this facility).
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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Some new guest features have been introduced recently. Let's wire
them up in the CPU model.
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
[split patch]
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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>
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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>
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Provide a mechanism to disable features in compatibility machines.
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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Clean up spacing and add comments to clarify difference between base, full and
default models.
Not having spacing around the model definitions in gen-features.c is
particularly frustrating as the reader tends to misinterpret which model they
are looking at or editing.
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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Let's keep track of cmma enablement and move the mem_path check into
the actual enablement. This now also warns users that do not use
cpu-models about disabled cmma when using huge pages.
Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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Convert all uses of error_report("warning:"... to use warn_report()
instead. This helps standardise on a single method of printing warnings
to the user.
All of the warnings were changed using these two commands:
find ./* -type f -exec sed -i \
's|error_report(".*warning[,:] |warn_report("|Ig' {} +
Indentation fixed up manually afterwards.
The test-qdev-global-props test case was manually updated to ensure that
this patch passes make check (as the test cases are case sensitive).
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Suggested-by: Thomas Huth <thuth@redhat.com>
Cc: Jeff Cody <jcody@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Cc: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Lieven <pl@kamp.de>
Cc: Josh Durgin <jdurgin@redhat.com>
Cc: "Richard W.M. Jones" <rjones@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Greg Kurz <groug@kaod.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Peter Chubb <peter.chubb@nicta.com.au>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Alexander Graf <agraf@suse.de>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Cornelia Huck <cohuck@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Greg Kurz <groug@kaod.org>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed by: Peter Chubb <peter.chubb@data61.csiro.au>
Acked-by: Max Reitz <mreitz@redhat.com>
Acked-by: Marcel Apfelbaum <marcel@redhat.com>
Message-Id: <e1cfa2cd47087c248dd24caca9c33d9af0c499b0.1499866456.git.alistair.francis@xilinx.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
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This patch is based on a similar patch from Stefan Hajnoczi -
commit c324fd0a39c ("virtio-pci: use ioeventfd even when KVM is disabled")
Do not check kvm_eventfds_enabled() when KVM is disabled since it
always returns 0. Since commit 8c56c1a592b5092d91da8d8943c17777d6462a6f
("memory: emulate ioeventfd") it has been possible to use ioeventfds in
qtest or TCG mode.
This patch makes -device virtio-scsi-ccw,iothread=iothread0 work even
when KVM is disabled.
Currently we don't have an equivalent to "memory: emulate ioeventfd"
for ccw yet, but that this doesn't hurt and qemu-iotests 068 can pass with
skipping iothread arguments.
I have tested that virtio-scsi-ccw works under tcg both with and without
iothread.
This patch fixes qemu-iotests 068, which was accidentally merged early
despite the dependency on ioeventfd.
Signed-off-by: QingFeng Hao <haoqf@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20170704132350.11874-2-haoqf@linux.vnet.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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The response for query-cpu-definitions didn't include the
unavailable-features field, which is used by libvirt to figure
out whether a certain cpu model is usable on the host.
The unavailable features are now computed by obtaining the host CPU
model and comparing it against the known CPU models. The comparison
takes into account the generation, the GA level and the feature
bitmaps. In the case of a CPU generation/GA level mismatch
a feature called "type" is reported to be missing.
As a result, the output of virsh domcapabilities would change
from something like
...
<mode name='custom' supported='yes'>
<model usable='unknown'>z10EC-base</model>
<model usable='unknown'>z9EC-base</model>
<model usable='unknown'>z196.2-base</model>
<model usable='unknown'>z900-base</model>
<model usable='unknown'>z990</model>
...
to
...
<mode name='custom' supported='yes'>
<model usable='yes'>z10EC-base</model>
<model usable='yes'>z9EC-base</model>
<model usable='no'>z196.2-base</model>
<model usable='yes'>z900-base</model>
<model usable='yes'>z990</model>
...
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Message-Id: <1499082529-16970-1-git-send-email-mihajlov@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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Let's keep it very simple for now and flush the complete tlb,
we currently can't find the right entries in our tlb, we would have
to store the used tables for each element.
As we now fully implement the DAT-enhancement facility, we can allow to
enable it for the qemu CPU model.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170622094151.28633-4-david@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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If only the page index is set, most likely we don't have a valid
virtual address. Let's do a full tlb flush for that case.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170622094151.28633-3-david@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Let's allow to enable it for the qemu cpu model and correctly emulate
it.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170622094151.28633-2-david@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Most of the PSW bits that were being copied into TB->flags
are not relevant to translation. Removing those that are
unnecessary reduces the amount of translation required.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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