Peter Maydell [Thu, 28 Feb 2019 17:35:42 +0000 (17:35 +0000)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-
20190228-1' into staging
target-arm queue:
* add MHU and dual-core support to Musca boards
* refactor some VFP insns to be gated by ID registers
* Revert "arm: Allow system registers for KVM guests to be changed by QEMU code"
* Implement ARMv8.2-FHM extension
* Advertise JSCVT via HWCAP for linux-user
# gpg: Signature made Thu 28 Feb 2019 11:06:55 GMT
# gpg: using RSA key
E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* remotes/pmaydell/tags/pull-target-arm-
20190228-1:
linux-user: Enable HWCAP_ASIMDFHM, HWCAP_JSCVT
target/arm: Enable ARMv8.2-FHM for -cpu max
target/arm: Implement VFMAL and VFMSL for aarch32
target/arm: Implement FMLAL and FMLSL for aarch64
target/arm: Add helpers for FMLAL
Revert "arm: Allow system registers for KVM guests to be changed by QEMU code"
target/arm: Gate "miscellaneous FP" insns by ID register field
target/arm: Use MVFR1 feature bits to gate A32/T32 FP16 instructions
hw/arm/armsse: Unify init-svtor and cpuwait handling
hw/arm/iotkit-sysctl: Implement CPUWAIT and INITSVTOR*
hw/arm/iotkit-sysctl: Add SSE-200 registers
hw/misc/iotkit-sysctl: Correct typo in INITSVTOR0 register name
target/arm/arm-powerctl: Add new arm_set_cpu_on_and_reset()
target/arm/cpu: Allow init-svtor property to be set after realize
hw/arm/armsse: Wire up the MHUs
hw/misc/armsse-mhu.c: Model the SSE-200 Message Handling Unit
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Thu, 28 Feb 2019 16:11:18 +0000 (16:11 +0000)]
Merge remote-tracking branch 'remotes/kraxel/tags/audio-
20190228-pull-request' into staging
audio: fixes and cleanups.
# gpg: Signature made Thu 28 Feb 2019 10:08:44 GMT
# gpg: using RSA key
4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138
* remotes/kraxel/tags/audio-
20190228-pull-request:
audio/sdlaudio: Simplify the sdl_callback function
audio/sdlaudio: Remove the semaphore code
audio: don't build alsa and sdl by default on linux
audio: Do not check for audio_calloc failure
audio: Use g_strdup_printf instead of manual building a string
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Thu, 28 Feb 2019 12:59:49 +0000 (12:59 +0000)]
Merge remote-tracking branch 'remotes/amarkovic/tags/mips-queue-feb-27-2019' into staging
MIPS queue for February 27th, 2019
# gpg: Signature made Wed 27 Feb 2019 13:27:36 GMT
# gpg: using RSA key
D4972A8967F75A65
# gpg: Good signature from "Aleksandar Markovic <amarkovic@wavecomp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 8526 FBF1 5DA3 811F 4A01 DD75 D497 2A89 67F7 5A65
* remotes/amarkovic/tags/mips-queue-feb-27-2019:
target/mips: Preparing for adding MMI instructions
tests/tcg: target/mips: Add tests for MSA integer max/min instructions
tests/tcg: target/mips: Add wrappers for MSA integer max/min instructions
qemu-doc: Add section on MIPS' Boston board
qemu-doc: Add section on MIPS' Fulong 2E board
qemu-doc: Move section on MIPS' mipssim pseudo board
disas: nanoMIPS: Fix a function misnomer
tests/tcg: target/mips: Add tests for MSA integer compare instructions
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Thu, 28 Feb 2019 12:02:07 +0000 (12:02 +0000)]
Merge remote-tracking branch 'remotes/ericb/tags/pull-nbd-2019-02-25-v2' into staging
nbd patches for 2019-02-25
- iotest failure fixes for tests related to NBD
# gpg: Signature made Tue 26 Feb 2019 16:46:15 GMT
# gpg: using RSA key
A7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>" [full]
# gpg: aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>" [full]
# gpg: aka "[jpeg image of size 6874]" [full]
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2 F3AA A7A1 6B4A 2527 436A
* remotes/ericb/tags/pull-nbd-2019-02-25-v2:
iotests: avoid broken pipe with certtool
iotests: ensure we print nbd server log on error
iotests: handle TypeError for Python 3 in test 242
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Thu, 28 Feb 2019 11:13:32 +0000 (11:13 +0000)]
Merge remote-tracking branch 'remotes/stsquad/tags/pull-fpu-next-260219-1' into staging
Softloat updates, mostly in preparation for s390x usage
# gpg: Signature made Tue 26 Feb 2019 14:09:34 GMT
# gpg: using RSA key
6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44
* remotes/stsquad/tags/pull-fpu-next-260219-1:
tests/Makefile.include: test all rounding modes of softfloat
softfloat: Support float_round_to_odd more places
tests/fp: enable f128_to_ui[32/64] tests in float-to-uint
tests/fp: add wrapping for f128_to_ui32
softfloat: Implement float128_to_uint32
softfloat: add float128_is_{normal,denormal}
tests: Ignore fp test outputs
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Richard Henderson [Thu, 28 Feb 2019 10:55:17 +0000 (10:55 +0000)]
linux-user: Enable HWCAP_ASIMDFHM, HWCAP_JSCVT
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20190219222952.22183-6-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Richard Henderson [Thu, 28 Feb 2019 10:55:17 +0000 (10:55 +0000)]
target/arm: Enable ARMv8.2-FHM for -cpu max
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20190219222952.22183-5-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Richard Henderson [Thu, 28 Feb 2019 10:55:17 +0000 (10:55 +0000)]
target/arm: Implement VFMAL and VFMSL for aarch32
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20190219222952.22183-4-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Richard Henderson [Thu, 28 Feb 2019 10:55:17 +0000 (10:55 +0000)]
target/arm: Implement FMLAL and FMLSL for aarch64
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20190219222952.22183-3-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Richard Henderson [Thu, 28 Feb 2019 10:55:16 +0000 (10:55 +0000)]
target/arm: Add helpers for FMLAL
Note that float16_to_float32 rightly squashes SNaN to QNaN.
But of course pickNaNMulAdd, for ARM, selects SNaNs first.
So we have to preserve SNaN long enough for the correct NaN
to be selected. Thus float16_to_float32_by_bits.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20190219222952.22183-2-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Thu, 28 Feb 2019 10:55:16 +0000 (10:55 +0000)]
Revert "arm: Allow system registers for KVM guests to be changed by QEMU code"
This reverts commit
823e1b3818f9b10b824ddcd756983b6e2fa68730,
which introduces a regression running EDK2 guest firmware
under KVM:
error: kvm run failed Function not implemented
PC=
000000013f5a6208 X00=
00000000404003c4 X01=
000000000000003a
X02=
0000000000000000 X03=
00000000404003c4 X04=
0000000000000000
X05=
0000000096000046 X06=
000000013d2ef270 X07=
000000013e3d1710
X08=
09010755ffaf8ba8 X09=
ffaf8b9cfeeb5468 X10=
feeb546409010756
X11=
09010757ffaf8b90 X12=
feeb50680903068b X13=
090306a1ffaf8bc0
X14=
0000000000000000 X15=
0000000000000000 X16=
000000013f872da0
X17=
00000000ffffa6ab X18=
0000000000000000 X19=
000000013f5a92d0
X20=
000000013f5a7a78 X21=
000000000000003a X22=
000000013f5a7ab2
X23=
000000013f5a92e8 X24=
000000013f631090 X25=
0000000000000010
X26=
0000000000000100 X27=
000000013f89501b X28=
000000013e3d14e0
X29=
000000013e3d12a0 X30=
000000013f5a2518 SP=
000000013b7be0b0
PSTATE=
404003c4 -Z-- EL1t
with
[ 3507.926571] kvm [35042]: load/store instruction decoding not implemented
in the host dmesg.
Revert the change for the moment until we can investigate the
cause of the regression.
Reported-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Thu, 28 Feb 2019 10:55:16 +0000 (10:55 +0000)]
target/arm: Gate "miscellaneous FP" insns by ID register field
There is a set of VFP instructions which we implement in
disas_vfp_v8_insn() and gate on the ARM_FEATURE_V8 bit.
These were all first introduced in v8 for A-profile, but in
M-profile they appeared in v7M. Gate them on the MVFR2
FPMisc field instead, and rename the function appropriately.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20190222170936.13268-3-peter.maydell@linaro.org
Peter Maydell [Thu, 28 Feb 2019 10:55:16 +0000 (10:55 +0000)]
target/arm: Use MVFR1 feature bits to gate A32/T32 FP16 instructions
Instead of gating the A32/T32 FP16 conversion instructions on
the ARM_FEATURE_VFP_FP16 flag, switch to our new approach of
looking at ID register bits. In this case MVFR1 fields FPHP
and SIMDHP indicate the presence of these insns.
This change doesn't alter behaviour for any of our CPUs.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20190222170936.13268-2-peter.maydell@linaro.org
Peter Maydell [Thu, 28 Feb 2019 10:55:16 +0000 (10:55 +0000)]
hw/arm/armsse: Unify init-svtor and cpuwait handling
At the moment the handling of init-svtor and cpuwait initial
values is split between armsse.c and iotkit-sysctl.c:
the code in armsse.c sets the initial state of the CPU
object by setting the init-svtor and start-powered-off
properties, but the iotkit-sysctl.c code has its own
code setting the reset values of its registers (which are
then used when updating the CPU when the guest makes
runtime changes).
Clean this up by making the armsse.c code set properties on the
iotkit-sysctl object to define the initial values of the
registers, so they always match the initial CPU state,
and update the comments in armsse.c accordingly.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20190219125808.25174-9-peter.maydell@linaro.org
Peter Maydell [Thu, 28 Feb 2019 10:55:16 +0000 (10:55 +0000)]
hw/arm/iotkit-sysctl: Implement CPUWAIT and INITSVTOR*
The CPUWAIT register acts as a sort of power-control: if a bit
in it is 1 then the CPU will have been forced into waiting
when the system was reset (which in QEMU we model as the
CPU starting powered off). Writing a 0 to the register will
allow the CPU to boot (for QEMU, we model this as powering
it on). Note that writing 0 to the register does not power
off a CPU.
For this to work correctly we need to also honour the
INITSVTOR* registers, which let the guest control where the
CPU will load its SP and PC from when it comes out of reset.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20190219125808.25174-8-peter.maydell@linaro.org
Peter Maydell [Thu, 28 Feb 2019 10:55:16 +0000 (10:55 +0000)]
hw/arm/iotkit-sysctl: Add SSE-200 registers
The SYSCTL block in the SSE-200 has some extra registers that
are not present in the IoTKit version. Add these registers
(as reads-as-written stubs), enabled by a new QOM property.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20190219125808.25174-7-peter.maydell@linaro.org
Peter Maydell [Thu, 28 Feb 2019 10:55:16 +0000 (10:55 +0000)]
hw/misc/iotkit-sysctl: Correct typo in INITSVTOR0 register name
The iotkit-sysctl device has a register it names INITSVRTOR0.
This is actually a typo present in the IoTKit documentation
and also in part of the SSE-200 documentation: it should be
INITSVTOR0 because it is specifying the initial value of the
Secure VTOR register in the CPU. Correct the typo.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20190219125808.25174-6-peter.maydell@linaro.org
Peter Maydell [Thu, 28 Feb 2019 10:55:16 +0000 (10:55 +0000)]
target/arm/arm-powerctl: Add new arm_set_cpu_on_and_reset()
Currently the Arm arm-powerctl.h APIs allow:
* arm_set_cpu_on(), which powers on a CPU and sets its
initial PC and other startup state
* arm_reset_cpu(), which resets a CPU which is already on
(and fails if the CPU is powered off)
but there is no way to say "power on a CPU as if it had
just come out of reset and don't do anything else to it".
Add a new function arm_set_cpu_on_and_reset(), which does this.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20190219125808.25174-5-peter.maydell@linaro.org
Peter Maydell [Thu, 28 Feb 2019 10:55:15 +0000 (10:55 +0000)]
target/arm/cpu: Allow init-svtor property to be set after realize
Make the M-profile "init-svtor" property be settable after realize.
This matches the hardware, where this is a config signal which
is sampled on CPU reset and can thus be changed between one
reset and another. To do this we have to change the API we
use to add the property.
(We will need this capability for the SSE-200.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20190219125808.25174-4-peter.maydell@linaro.org
Peter Maydell [Thu, 28 Feb 2019 10:55:15 +0000 (10:55 +0000)]
hw/arm/armsse: Wire up the MHUs
Create and connect the MHUs in the SSE-200.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20190219125808.25174-3-peter.maydell@linaro.org
Peter Maydell [Thu, 28 Feb 2019 10:55:15 +0000 (10:55 +0000)]
hw/misc/armsse-mhu.c: Model the SSE-200 Message Handling Unit
Implement a model of the Message Handling Unit (MHU) found in
the Arm SSE-200. This is a simple device which just contains
some registers which allow the two cores of the SSE-200
to raise interrupts on each other.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20190219125808.25174-2-peter.maydell@linaro.org
Peter Maydell [Thu, 28 Feb 2019 10:28:00 +0000 (10:28 +0000)]
Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-4.0-
20190226' into staging
ppc patch queue 2019-02-26
Next set of patches for ppc and spapr. There's a lot in this one:
* Support "STOP light" states on POWER9
* Add support for HVI interrupts on POWER9 (powernv machine)
* CVE-2019-8934: Don't leak host model and serial information to the guest
* Tests and cleanups for various hot unplug options
* Hash and radix MMU implementation on POWER9 for powernv machine
* PCI Host Bridge hotplug support for pseries machine
* Allow larger kernels and initrds for powernv machine
Plus a handful of miscellaneous fixes and cleanups.
The cpu hotplug tests and cleanups from David Hildenbrand aren't
solely power related. However the consensus amongst Michael Tsirkin,
David Hildenbrand, Cornelia Huck and myself was that it made most
sense to come in via my tree.
# gpg: Signature made Tue 26 Feb 2019 03:37:46 GMT
# gpg: using RSA key
75F46586AE61A66CC44E87DC6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>" [full]
# gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>" [full]
# gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>" [full]
# gpg: aka "David Gibson (kernel.org) <dwg@kernel.org>" [unknown]
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dgibson/tags/ppc-for-4.0-
20190226: (50 commits)
ppc/pnv: use IEC binary prefixes to represent sizes
ppc/pnv: add INITRD_MAX_SIZE constant
ppc/pnv: increase kernel size limit to 256MiB
hw/ppc: Use object_initialize_child for correct reference counting
ppc/xive: xive does not have a POWER7 interrupt model
tests/device-plug: Add PHB unplug request test for spapr
spapr: enable PHB hotplug for default pseries machine type
spapr: add hotplug hooks for PHB hotplug
spapr_pci: add ibm, my-drc-index property for PHB hotplug
spapr_pci: provide node start offset via spapr_populate_pci_dt()
spapr_events: add support for phb hotplug events
spapr: populate PHB DRC entries for root DT node
spapr: create DR connectors for PHBs
spapr_pci: add PHB unrealize
spapr_irq: Expose the phandle of the interrupt controller
spapr: Expose the name of the interrupt controller node
xics: Write source state to KVM at claim time
spapr/drc: Drop spapr_drc_attach() fdt argument
spapr/pci: Generate FDT fragment at configure connector time
spapr: Generate FDT fragment for CPUs at configure connector time
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Thomas Huth [Tue, 5 Feb 2019 03:08:21 +0000 (04:08 +0100)]
audio/sdlaudio: Simplify the sdl_callback function
At the end of the while-loop, either "samples" or "sdl->live" is zero, so
now that we've removed the semaphore code, the content of the while-loop
is always only executed once. Thus we can remove the while-loop now to
get rid of one indentation level here.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id:
1549336101-17623-3-git-send-email-thuth@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Thomas Huth [Tue, 5 Feb 2019 03:08:20 +0000 (04:08 +0100)]
audio/sdlaudio: Remove the semaphore code
The semaphore code was only working with SDL1.2 - with SDL2, it causes
a deadlock. Since we've removed support for SDL1.2 recently, we can
now completely remove the semaphore code from sdlaudio.c.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id:
1549336101-17623-2-git-send-email-thuth@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Gerd Hoffmann [Tue, 19 Feb 2019 12:42:57 +0000 (13:42 +0100)]
audio: don't build alsa and sdl by default on linux
In case no sound hardware is present both alsa and sdl drivers
initialize successfully and throw errors later on, i.e. effectively
the automatic probing doesn't work. Drop them from the list of
default audio drivers for linux because of that.
Fixes: 6a48541873 audio: probe audio drivers by default
Buglink: https://bugs.launchpad.net/qemu/+bug/1816052
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Tested-by: David Hildenbrand <david@redhat.com>
Message-id:
20190219124257.3001-1-kraxel@redhat.com
Frediano Ziglio [Mon, 25 Feb 2019 15:43:35 +0000 (15:43 +0000)]
audio: Do not check for audio_calloc failure
audio_calloc uses g_malloc0 which never returns in case of
memory failure.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Message-id:
20190225154335.11397-2-fziglio@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Frediano Ziglio [Mon, 25 Feb 2019 15:43:34 +0000 (15:43 +0000)]
audio: Use g_strdup_printf instead of manual building a string
Instead of using lot of low level function and manually allocate
the temporary string in audio_process_options use more high
level GLib function. The function is not used in hot path but to
read some initial setting.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Message-id:
20190225154335.11397-1-fziglio@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Mateja Marjanovic [Tue, 26 Feb 2019 12:23:12 +0000 (13:23 +0100)]
target/mips: Preparing for adding MMI instructions
Set up MMI code to be compiled only for TARGET_MIPS64. This is
needed so that GPRs are 64 bit, and combined with MMI registers,
they will form full 128 bit registers.
Signed-off-by: Mateja Marjanovic <mateja.marjanovic@rt-rk.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Message-Id: <
1551183797-13570-2-git-send-email-mateja.marjanovic@rt-rk.com>
Aleksandar Markovic [Tue, 26 Feb 2019 12:55:33 +0000 (13:55 +0100)]
tests/tcg: target/mips: Add tests for MSA integer max/min instructions
Add tests for MSA integer max/min instructions. This includes
following instructions:
* MAX_A.B - maximum of absolute of two signed values (bytes)
* MAX_A.H - maximum of absolute of two signed values (halfwords)
* MAX_A.W - maximum of absolute of two signed values (words)
* MAX_A.D - maximum of absolute of two signed values (doublewords)
* MIN_A.B - minimum of absolute of two signed values (bytes)
* MIN_A.H - minimum of absolute of two signed values (halfwords)
* MIN_A.W - minimum of absolute of two signed values (words)
* MIN_A.D - minimum of absolute of two signed values (doublewords)
* MAX_S.B - maximum of two signed values (bytes)
* MAX_S.H - maximum of two signed values (halfwords)
* MAX_S.W - maximum of two signed values (words)
* MAX_S.D - maximum of two signed values (doublewords)
* MIN_S.B - minimum of two signed values (bytes)
* MIN_S.H - minimum of two signed values (halfwords)
* MIN_S.W - minimum of two signed values (words)
* MIN_S.D - minimum of two signed values (doublewords)
* MAX_U.B - maximum of two unsigned values (bytes)
* MAX_U.H - maximum of two unsigned values (halfwords)
* MAX_U.W - maximum of two unsigned values (words)
* MAX_U.D - maximum of two unsigned values (doublewords)
* MIN_U.B - minimum of two unsigned values (bytes)
* MIN_U.H - minimum of two unsigned values (halfwords)
* MIN_U.W - minimum of two unsigned values (words)
* MIN_U.D - minimum of two unsigned values (doublewords)
Each test consists of 80 test cases, so altogether there are 1920
test cases.
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Message-Id: <
1551185735-17154-8-git-send-email-aleksandar.markovic@rt-rk.com>
Aleksandar Markovic [Tue, 26 Feb 2019 12:55:32 +0000 (13:55 +0100)]
tests/tcg: target/mips: Add wrappers for MSA integer max/min instructions
Add wrappers for MSA integer max/min instructions.
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Message-Id: <
1551185735-17154-7-git-send-email-aleksandar.markovic@rt-rk.com>
Aleksandar Markovic [Tue, 26 Feb 2019 12:55:31 +0000 (13:55 +0100)]
qemu-doc: Add section on MIPS' Boston board
Add section on MIPS' Boston board in QEMU user documentation.
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Message-Id: <
1551185735-17154-6-git-send-email-aleksandar.markovic@rt-rk.com>
Aleksandar Markovic [Tue, 26 Feb 2019 12:55:30 +0000 (13:55 +0100)]
qemu-doc: Add section on MIPS' Fulong 2E board
Add section on MIPS' Fulong 2E board in QEMU user documentation.
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Message-Id: <
1551185735-17154-5-git-send-email-aleksandar.markovic@rt-rk.com>
Aleksandar Markovic [Tue, 26 Feb 2019 12:55:29 +0000 (13:55 +0100)]
qemu-doc: Move section on MIPS' mipssim pseudo board
Move section on MIPS' mipssim pseudo board to the more
appropriate place.
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Message-Id: <
1551185735-17154-4-git-send-email-aleksandar.markovic@rt-rk.com>
Aleksandar Markovic [Tue, 26 Feb 2019 12:55:28 +0000 (13:55 +0100)]
disas: nanoMIPS: Fix a function misnomer
Rename function extract_ac_13_12() to extract_ac_15_14().
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Message-Id: <
1551185735-17154-3-git-send-email-aleksandar.markovic@rt-rk.com>
Aleksandar Markovic [Tue, 26 Feb 2019 12:55:27 +0000 (13:55 +0100)]
tests/tcg: target/mips: Add tests for MSA integer compare instructions
Add tests for MSA integer compare instructions. This includes
following instructions:
* CEQ.B - integer compare equal (bytes)
* CEQ.H - integer compare equal (halfwords)
* CEQ.W - integer compare equal (words)
* CEQ.D - integer compare equal (doublewords)
* CLE_S.B - signed integer compare less or equal (bytes)
* CLE_S.H - signed integer compare less or equal (halfwords)
* CLE_S.W - signed integer compare less or equal (words)
* CLE_S.D - signed integer compare less or equal (doublewords)
* CLE_U.B - unsigned integer compare less or equal (bytes)
* CLE_U.H - unsigned integer compare less or equal (halfwords)
* CLE_U.W - unsigned integer compare less or equal (words)
* CLE_U.D - unsigned integer compare less or equal (doublewords)
* CLT_S.B - signed integer compare less or equal (bytes)
* CLT_S.H - signed integer compare less or equal (halfwords)
* CLT_S.W - signed integer compare less or equal (words)
* CLT_S.D - signed integer compare less or equal (doublewords)
* CLT_U.B - unsigned integer compare less or equal (bytes)
* CLT_U.H - unsigned integer compare less or equal (halfwords)
* CLT_U.W - unsigned integer compare less or equal (words)
* CLT_U.D - unsigned integer compare less or equal (doublewords)
Each test consists of 80 test cases, so altogether there are 1600 test
cases.
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Message-Id: <
1551185735-17154-2-git-send-email-aleksandar.markovic@rt-rk.com>
Peter Maydell [Tue, 26 Feb 2019 19:04:47 +0000 (19:04 +0000)]
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block layer patches:
- Block graph change fixes (avoid loops, cope with non-tree graphs)
- bdrv_set_aio_context() related fixes
- HMP snapshot commands: Use only tag, not the ID to identify snapshots
- qmeu-img, commit: Error path fixes
- block/nvme: Build fix for gcc 9
- MAINTAINERS updates
- Fix various issues with bdrv_refresh_filename()
- Fix various iotests
- Include LUKS overhead in qemu-img measure for qcow2
- A fix for vmdk's image creation interface
# gpg: Signature made Mon 25 Feb 2019 14:18:15 GMT
# gpg: using RSA key
7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6
* remotes/kevin/tags/for-upstream: (71 commits)
iotests: Skip 211 on insufficient memory
vmdk: false positive of compat6 with hwversion not set
iotests: add LUKS payload overhead to 178 qemu-img measure test
qcow2: include LUKS payload overhead in qemu-img measure
iotests.py: s/_/-/g on keys in qmp_log()
iotests: Let 045 be run concurrently
iotests: Filter SSH paths
iotests.py: Filter filename in any string value
iotests.py: Add is_str()
iotests: Fix 207 to use QMP filters for qmp_log
iotests: Fix 232 for LUKS
iotests: Remove superfluous rm from 232
iotests: Fix 237 for Python 2.x
iotests: Re-add filename filters
iotests: Test json:{} filenames of internal BDSs
block: BDS options may lack the "driver" option
block/null: Generate filename even with latency-ns
block/curl: Implement bdrv_refresh_filename()
block/curl: Harmonize option defaults
block/nvme: Fix bdrv_refresh_filename()
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 26 Feb 2019 17:59:41 +0000 (17:59 +0000)]
Merge remote-tracking branch 'remotes/berrange/tags/authz-core-pull-request' into staging
Add a standard authorization framework
The current network services now support encryption via TLS and in some
cases support authentication via SASL. In cases where SASL is not
available, x509 client certificates can be used as a crude authorization
scheme, but using a sub-CA and controlling who you give certs to. In
general this is not very flexible though, so this series introduces a
new standard authorization framework.
It comes with four initial authorization mechanisms
- Simple - an exact username match. This is useful when there is
exactly one user that is known to connect. For example when live
migrating from one QEMU to another with TLS, libvirt would use
the simple scheme to whitelist the TLS cert of the source QEMU.
- List - an full access control list, with optional regex matching.
This is more flexible and is used to provide 100% backcompat with
the existing HMP ACL commands. The caveat is that we can't create
these via the CLI -object arg yet.
- ListFile - the same as List, but with the rules stored in JSON
format in an external file. This avoids the -object limitation
while also allowing the admin to change list entries on the file.
QEMU uses inotify to notice these changes and auto-reload the
file contents. This is likely a good default choice for most
network services, if the "simple" mechanism isn't sufficient.
- PAM - delegate the username lookup to a PAM module, which opens
the door to many options including things like SQL/LDAP lookups.
# gpg: Signature made Tue 26 Feb 2019 15:33:46 GMT
# gpg: using RSA key
BE86EBB415104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>" [full]
# gpg: aka "Daniel P. Berrange <berrange@redhat.com>" [full]
# Primary key fingerprint: DAF3 A6FD B26B 6291 2D0E 8E3F BE86 EBB4 1510 4FDF
* remotes/berrange/tags/authz-core-pull-request:
authz: delete existing ACL implementation
authz: add QAuthZPAM object type for authorizing using PAM
authz: add QAuthZListFile object type for a file access control list
authz: add QAuthZList object type for an access control list
authz: add QAuthZSimple object type for easy whitelist auth checks
authz: add QAuthZ object as an authorization base class
hw/usb: switch MTP to use new inotify APIs
hw/usb: fix const-ness for string params in MTP driver
hw/usb: don't set IN_ISDIR for inotify watch in MTP driver
qom: don't require user creatable objects to be registered
util: add helper APIs for dealing with inotify in portable manner
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Daniel P. Berrangé [Wed, 20 Feb 2019 14:58:19 +0000 (14:58 +0000)]
iotests: avoid broken pipe with certtool
When we run "certtool 2>&1 | head -1" the latter command is likely to
complete and exit before certtool has written everything it wants to
stderr. In at least the RHEL-7 gnutls 3.3.29 this causes certtool to
quit with broken pipe before it has finished writing the desired
output file to disk. This causes non-deterministic failures of the
iotest 233 because the certs are sometimes zero length files.
If certtool fails the "head -1" means we also lose any useful error
message it would have printed.
Thus this patch gets rid of the pipe and post-processes the output in a
more flexible & reliable manner.
Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <
20190220145819.30969-3-berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Daniel P. Berrangé [Wed, 20 Feb 2019 14:58:18 +0000 (14:58 +0000)]
iotests: ensure we print nbd server log on error
If we abort the iotest early the server.log file might contain useful
information for diagnosing the problem. Ensure its contents are
displayed in this case.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <
20190220145819.30969-2-berrange@redhat.com>
[eblake: fix shell quoting]
Signed-off-by: Eric Blake <eblake@redhat.com>
Andrey Shinkevich [Tue, 26 Feb 2019 16:11:35 +0000 (19:11 +0300)]
iotests: handle TypeError for Python 3 in test 242
The data type for bytes in Python 3 differs from the one in Python 2.
The type cast that is compatible with both versions was applied.
Signed-off-by: Nir Soffer <nsoffer@redhat.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reported-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <
1551197495-24425-1-git-send-email-andrey.shinkevich@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Daniel P. Berrange [Thu, 18 Feb 2016 18:40:24 +0000 (18:40 +0000)]
authz: delete existing ACL implementation
The 'qemu_acl' type was a previous non-QOM based attempt to provide an
authorization facility in QEMU. Because it is non-QOM based it cannot be
created via the command line and requires special monitor commands to
manipulate it.
The new QAuthZ subclasses provide a superset of the functionality in
qemu_acl, so the latter can now be deleted. The HMP 'acl_*' monitor
commands are converted to use the new QAuthZSimple data type instead
in order to provide temporary backwards compatibility.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Daniel P. Berrange [Wed, 27 Jul 2016 13:13:56 +0000 (14:13 +0100)]
authz: add QAuthZPAM object type for authorizing using PAM
Add an authorization backend that talks to PAM to check whether the user
identity is allowed. This only uses the PAM account validation facility,
which is essentially just a check to see if the provided username is permitted
access. It doesn't use the authentication or session parts of PAM, since
that's dealt with by the relevant part of QEMU (eg VNC server).
Consider starting QEMU with a VNC server and telling it to use TLS with
x509 client certificates and configuring it to use an PAM to validate
the x509 distinguished name. In this example we're telling it to use PAM
for the QAuthZ impl with a service name of "qemu-vnc"
$ qemu-system-x86_64 \
-object tls-creds-x509,id=tls0,dir=/home/berrange/security/qemutls,\
endpoint=server,verify-peer=yes \
-object authz-pam,id=authz0,service=qemu-vnc \
-vnc :1,tls-creds=tls0,tls-authz=authz0
This requires an /etc/pam/qemu-vnc file to be created with the auth
rules. A very simple file based whitelist can be setup using
$ cat > /etc/pam/qemu-vnc <<EOF
account requisite pam_listfile.so item=user sense=allow file=/etc/qemu/vnc.allow
EOF
The /etc/qemu/vnc.allow file simply contains one username per line. Any
username not in the file is denied. The usernames in this example are
the x509 distinguished name from the client's x509 cert.
$ cat > /etc/qemu/vnc.allow <<EOF
CN=laptop.berrange.com,O=Berrange Home,L=London,ST=London,C=GB
EOF
More interesting would be to configure PAM to use an LDAP backend, so
that the QEMU authorization check data can be centralized instead of
requiring each compute host to have file maintained.
The main limitation with this PAM module is that the rules apply to all
QEMU instances on the host. Setting up different rules per VM, would
require creating a separate PAM service name & config file for every
guest. An alternative approach for the future might be to not pass in
the plain username to PAM, but instead combine the VM name or UUID with
the username. This requires further consideration though.
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Daniel P. Berrangé [Fri, 11 May 2018 11:19:59 +0000 (12:19 +0100)]
authz: add QAuthZListFile object type for a file access control list
Add a QAuthZListFile object type that implements the QAuthZ interface. This
built-in implementation is a proxy around the QAuthZList object type,
initializing it from an external file, and optionally, automatically
reloading it whenever it changes.
To create an instance of this object via the QMP monitor, the syntax
used would be:
{
"execute": "object-add",
"arguments": {
"qom-type": "authz-list-file",
"id": "authz0",
"props": {
"filename": "/etc/qemu/vnc.acl",
"refresh": true
}
}
}
If "refresh" is "yes", inotify is used to monitor the file,
automatically reloading changes. If an error occurs during reloading,
all authorizations will fail until the file is next successfully
loaded.
The /etc/qemu/vnc.acl file would contain a JSON representation of a
QAuthZList object
{
"rules": [
{ "match": "fred", "policy": "allow", "format": "exact" },
{ "match": "bob", "policy": "allow", "format": "exact" },
{ "match": "danb", "policy": "deny", "format": "glob" },
{ "match": "dan*", "policy": "allow", "format": "exact" },
],
"policy": "deny"
}
This sets up an authorization rule that allows 'fred', 'bob' and anyone
whose name starts with 'dan', except for 'danb'. Everyone unmatched is
denied.
The object can be loaded on the comand line using
-object authz-list-file,id=authz0,filename=/etc/qemu/vnc.acl,refresh=yes
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Daniel P. Berrange [Wed, 21 Oct 2015 13:54:59 +0000 (14:54 +0100)]
authz: add QAuthZList object type for an access control list
Add a QAuthZList object type that implements the QAuthZ interface. This
built-in implementation maintains a trivial access control list with a
sequence of match rules and a final default policy. This replicates the
functionality currently provided by the qemu_acl module.
To create an instance of this object via the QMP monitor, the syntax
used would be:
{
"execute": "object-add",
"arguments": {
"qom-type": "authz-list",
"id": "authz0",
"props": {
"rules": [
{ "match": "fred", "policy": "allow", "format": "exact" },
{ "match": "bob", "policy": "allow", "format": "exact" },
{ "match": "danb", "policy": "deny", "format": "glob" },
{ "match": "dan*", "policy": "allow", "format": "exact" },
],
"policy": "deny"
}
}
}
This sets up an authorization rule that allows 'fred', 'bob' and anyone
whose name starts with 'dan', except for 'danb'. Everyone unmatched is
denied.
It is not currently possible to create this via -object, since there is
no syntax supported to specify non-scalar properties for objects. This
is likely to be addressed by later support for using JSON with -object,
or an equivalent approach.
In any case the future "authz-listfile" object can be used from the
CLI and is likely a better choice, as it allows the ACL to be refreshed
automatically on change.
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Daniel P. Berrangé [Wed, 2 May 2018 14:40:33 +0000 (15:40 +0100)]
authz: add QAuthZSimple object type for easy whitelist auth checks
In many cases a single VM will just need to whitelist a single identity
as the allowed user of network services. This is especially the case for
TLS live migration (optionally with NBD storage) where we just need to
whitelist the x509 certificate distinguished name of the source QEMU
host.
Via QMP this can be configured with:
{
"execute": "object-add",
"arguments": {
"qom-type": "authz-simple",
"id": "authz0",
"props": {
"identity": "fred"
}
}
}
Or via the command line
-object authz-simple,id=authz0,identity=fred
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Daniel P. Berrange [Wed, 21 Oct 2015 12:16:21 +0000 (13:16 +0100)]
authz: add QAuthZ object as an authorization base class
The current qemu_acl module provides a simple access control list
facility inside QEMU, which is used via a set of monitor commands
acl_show, acl_policy, acl_add, acl_remove & acl_reset.
Note there is no ability to create ACLs - the network services (eg VNC
server) were expected to create ACLs that they want to check.
There is also no way to define ACLs on the command line, nor potentially
integrate with external authorization systems like polkit, pam, ldap
lookup, etc.
The QAuthZ object defines a minimal abstract QOM class that can be
subclassed for creating different authorization providers.
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Daniel P. Berrangé [Fri, 8 Jun 2018 16:50:55 +0000 (17:50 +0100)]
hw/usb: switch MTP to use new inotify APIs
The internal inotify APIs allow a lot of conditional statements to be
cleared out, and provide a simpler callback for handling events.
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Daniel P. Berrangé [Fri, 15 Jun 2018 15:11:51 +0000 (16:11 +0100)]
hw/usb: fix const-ness for string params in MTP driver
Various functions accepting 'char *' string parameters were missing
'const' qualifiers.
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Daniel P. Berrangé [Mon, 11 Jun 2018 16:41:59 +0000 (17:41 +0100)]
hw/usb: don't set IN_ISDIR for inotify watch in MTP driver
IN_ISDIR is not a bit that one can request when registering a
watch with inotify_add_watch. Rather it is a bit that is set
automatically when reading events from the kernel.
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Daniel P. Berrangé [Fri, 15 Jun 2018 15:39:35 +0000 (16:39 +0100)]
qom: don't require user creatable objects to be registered
When an object is in turn owned by another user object, it is not
desirable to expose this in the QOM object hierarchy. It is just an
internal implementation detail, we should be free to change without
exposure to apps managing QEMU.
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Daniel P. Berrangé [Fri, 8 Jun 2018 16:24:57 +0000 (17:24 +0100)]
util: add helper APIs for dealing with inotify in portable manner
The inotify userspace API for reading events is quite horrible, so it is
useful to wrap it in a more friendly API to avoid duplicating code
across many users in QEMU. Wrapping it also allows introduction of a
platform portability layer, so that we can add impls for non-Linux based
equivalents in future.
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Alex Bennée [Sun, 24 Feb 2019 15:11:01 +0000 (15:11 +0000)]
tests/Makefile.include: test all rounding modes of softfloat
We missed a bug in a recent patch as we were not testing all the
rounding modes for all operations. However enabling all rounding modes
for mulAdd does slow down the already slowest test and doesn't really
buy us much additional coverage so lets allow the default test flags
to be overridden.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Richard Henderson [Fri, 15 Feb 2019 17:02:25 +0000 (09:02 -0800)]
softfloat: Support float_round_to_odd more places
Previously this was only supported for roundAndPackFloat64.
New support in round_canonical, round_to_int, float128_round_to_int,
roundAndPackFloat32, roundAndPackInt32, roundAndPackInt64,
roundAndPackUint64. This does not include any of the floatx80 routines,
as we do not have users for that rounding mode there.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <
20190215170225.15537-1-richard.henderson@linaro.org>
Tested-by: David Hildenbrand <david@redhat.com>
[AJB: add missing break]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Alex Bennée [Wed, 6 Feb 2019 15:25:20 +0000 (15:25 +0000)]
tests/fp: enable f128_to_ui[32/64] tests in float-to-uint
We've just added f128_to_ui32 and we missed out the f128_to_ui64 tests
last time.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Alex Bennée [Wed, 6 Feb 2019 14:31:40 +0000 (14:31 +0000)]
tests/fp: add wrapping for f128_to_ui32
Needed to test: softfloat: Implement float128_to_uint32
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
David Hildenbrand [Wed, 6 Feb 2019 10:53:39 +0000 (11:53 +0100)]
softfloat: Implement float128_to_uint32
Handling it just like float128_to_uint32_round_to_zero, that hopefully
is free of bugs :)
Documentation basically copied from float128_to_uint64
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
David Hildenbrand [Wed, 6 Feb 2019 09:10:43 +0000 (10:10 +0100)]
softfloat: add float128_is_{normal,denormal}
Needed on s390x, to test for the data class of a number. So it will
gain soon a user.
A number is considered normal if the exponent is neither 0 nor all 1's.
That can be checked by adding 1 to the exponent, and comparing against
>= 2 after dropping an eventual overflow into the sign bit.
While at it, convert the other floatXX_is_normal functions to use a
similar, less error prone calculation, as suggested by Richard H.
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Eric Blake [Fri, 1 Feb 2019 19:32:34 +0000 (13:32 -0600)]
tests: Ignore fp test outputs
Commit
2cade3d wired up new tests, but did not exclude the
new *.out files produced by running the tests.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Murilo Opsfelder Araujo [Mon, 25 Feb 2019 17:01:55 +0000 (14:01 -0300)]
ppc/pnv: use IEC binary prefixes to represent sizes
Using IEC binary prefixes from qemu/units.h provides a more human-friendly value
to size constants.
Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Murilo Opsfelder Araujo <muriloo@linux.ibm.com>
Message-Id: <
20190225170155.1972-4-muriloo@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Murilo Opsfelder Araujo [Mon, 25 Feb 2019 17:01:54 +0000 (14:01 -0300)]
ppc/pnv: add INITRD_MAX_SIZE constant
The current 0x10000000 value is actually 256MiB, not 128MB as the comment
suggests. Move it to a constant and fix the comment (no change in the size
value).
Signed-off-by: Murilo Opsfelder Araujo <muriloo@linux.ibm.com>
Message-Id: <
20190225170155.1972-3-muriloo@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Murilo Opsfelder Araujo [Mon, 25 Feb 2019 17:01:53 +0000 (14:01 -0300)]
ppc/pnv: increase kernel size limit to 256MiB
Building kernel with CONFIG_DEBUG_INFO_REDUCED can generate a ~90MB image and
building with CONFIG_DEBUG_INFO can generate a ~225M one, both exceeds the
current limit of 32MiB.
Increasing kernel size limit to 256MiB should fit for now.
Signed-off-by: Murilo Opsfelder Araujo <muriloo@linux.ibm.com>
Message-Id: <
20190225170155.1972-2-muriloo@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Thomas Huth [Thu, 21 Feb 2019 11:24:48 +0000 (12:24 +0100)]
hw/ppc: Use object_initialize_child for correct reference counting
Both functions, object_initialize() and object_property_add_child() increase
the reference counter of the new object, so one of the references has to be
dropped afterwards to get the reference counting right. Otherwise the child
object will not be properly cleaned up when the parent gets destroyed.
Thus let's use now object_initialize_child() instead to get the reference
counting here right.
Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <
1550748288-30598-1-git-send-email-thuth@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Cédric Le Goater [Tue, 19 Feb 2019 14:25:30 +0000 (15:25 +0100)]
ppc/xive: xive does not have a POWER7 interrupt model
Patch "target/ppc: Add POWER9 external interrupt model" should have
removed the section covering PPC_FLAGS_INPUT_POWER7.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <
20190219142530.17807-1-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Greg Kurz [Tue, 19 Feb 2019 17:18:59 +0000 (18:18 +0100)]
tests/device-plug: Add PHB unplug request test for spapr
We can easily test this, just like PCI. PHB unplug is not supported
on s390x and x86 ACPI.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <
155059673939.
1466090.
14354001937819612724.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Michael Roth [Tue, 19 Feb 2019 17:18:54 +0000 (18:18 +0100)]
spapr: enable PHB hotplug for default pseries machine type
The 'dr_phb_enabled' field of that class can be set as part of
machine-specific init code. It will be used to conditionally
enable creation of DRC objects and device-tree description to
facilitate hotplug of PHBs.
Since we can't migrate this state to older machine types,
default the option to true and disable it for older machine
types.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <
155059673433.
1466090.
6188091133769611501.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Greg Kurz [Tue, 19 Feb 2019 17:18:49 +0000 (18:18 +0100)]
spapr: add hotplug hooks for PHB hotplug
Hotplugging PHBs is a machine-level operation, but PHBs reside on the
main system bus, so we register spapr machine as the handler for the
main system bus.
Provide the usual pre-plug, plug and unplug-request handlers.
Move the checking of the PHB index to the pre-plug handler. It is okay
to do that and assert in the realize function because the pre-plug
handler is always called, even for the oldest machine types we support.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
(Fixed interrupt controller phandle in "interrupt-map" and
TCE table size in "ibm,dma-window" FDT fragment, Greg Kurz)
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <
155059672926.
1466090.
13612804072190051439.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Michael Roth [Tue, 19 Feb 2019 17:18:44 +0000 (18:18 +0100)]
spapr_pci: add ibm, my-drc-index property for PHB hotplug
This is needed to denote a boot-time PHB as being hot-pluggable.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <
155059672420.
1466090.
15147504040270659866.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Michael Roth [Tue, 19 Feb 2019 17:18:39 +0000 (18:18 +0100)]
spapr_pci: provide node start offset via spapr_populate_pci_dt()
PHB hotplug re-uses PHB device tree generation code and passes
it to a guest via RTAS. Doing this requires knowledge of where
exactly in the device tree the node describing the PHB begins.
Provide this via a new optional pointer that can be used to
store the PHB node's start offset.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <
155059671912.
1466090.
10891589403973703473.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Michael Roth [Tue, 19 Feb 2019 17:18:34 +0000 (18:18 +0100)]
spapr_events: add support for phb hotplug events
Extend the existing EPOW event format we use for PCI
devices to emit PHB plug/unplug events.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <
155059671405.
1466090.
535964535260503283.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Nathan Fontenot [Tue, 19 Feb 2019 17:18:29 +0000 (18:18 +0100)]
spapr: populate PHB DRC entries for root DT node
This add entries to the root OF node to advertise our PHBs as being
DR-capable in accordance with PAPR specification.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <
155059670897.
1466090.
10843921337591637414.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Michael Roth [Tue, 19 Feb 2019 17:18:23 +0000 (18:18 +0100)]
spapr: create DR connectors for PHBs
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <
155059670389.
1466090.
10015601248906623076.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Greg Kurz [Tue, 19 Feb 2019 17:18:18 +0000 (18:18 +0100)]
spapr_pci: add PHB unrealize
To support PHB hotplug we need to clean up lingering references,
memory, child properties, etc. prior to the PHB object being
finalized. Generally this will be called as a result of calling
object_unparent() on the PHB object, which in turn would normally
be called as the result of an unplug() operation.
When the PHB is finalized, child objects will be unparented in
turn, and finalized if the PHB was the only reference holder. so
we don't bother to explicitly unparent child objects of the PHB,
with the notable exception of DRCs. This is needed to avoid a QEMU
crash when unplugging a PHB and resetting the machine before the
guest could handle the event. The DRCs are removed from the QOM tree
by pci_unregister_root_bus() and we must make sure we're not leaving
stale aliases under the global /dr-connector path.
The formula that gives the number of DMA windows is moved to an
inline function in the hw/pci-host/spapr.h header because it
will have other users.
The unrealize function is able to cope with partially realized PHBs.
It is hence used to implement proper rollback on the realize error
path.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <
155059669881.
1466090.
13515030705986041517.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Greg Kurz [Tue, 19 Feb 2019 17:18:13 +0000 (18:18 +0100)]
spapr_irq: Expose the phandle of the interrupt controller
This will be used by PHB hotplug in order to create the "interrupt-map"
property of the PHB node.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <
155059669374.
1466090.
12943228478046223856.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Greg Kurz [Tue, 19 Feb 2019 17:18:08 +0000 (18:18 +0100)]
spapr: Expose the name of the interrupt controller node
This will be needed by PHB hotplug in order to access the "phandle"
property of the interrupt controller node.
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <
155059668867.
1466090.
6339199751719123386.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Greg Kurz [Tue, 19 Feb 2019 17:18:03 +0000 (18:18 +0100)]
xics: Write source state to KVM at claim time
The pseries machine only uses LSIs to support legacy PCI devices. Every
PHB claims 4 LSIs at realize time. When using in-kernel XICS (or upcoming
in-kernel XIVE), QEMU synchronizes the state of all irqs, including these
LSIs, later on at machine reset.
In order to support PHB hotplug, we need a way to tell KVM about the LSIs
that doesn't require a machine reset. An easy way to do that is to always
inform KVM when an interrupt is claimed, which really isn't a performance
path.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <
155059668360.
1466090.
5969630516627776426.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Greg Kurz [Tue, 19 Feb 2019 17:17:58 +0000 (18:17 +0100)]
spapr/drc: Drop spapr_drc_attach() fdt argument
All DRC subtypes have been converted to generate the FDT fragment at
configure connector time instead of attach time. The fdt and fdt_offset
arguments of spapr_drc_attach() aren't needed anymore. Drop them and
make the implementation of the dt_populate() method mandatory.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <
155059667853.
1466090.
16527852453054217565.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Greg Kurz [Tue, 19 Feb 2019 17:17:53 +0000 (18:17 +0100)]
spapr/pci: Generate FDT fragment at configure connector time
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <
155059667346.
1466090.
326696113231137772.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Greg Kurz [Tue, 19 Feb 2019 17:17:48 +0000 (18:17 +0100)]
spapr: Generate FDT fragment for CPUs at configure connector time
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <
155059666839.
1466090.
3833376527523126752.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Greg Kurz [Tue, 19 Feb 2019 17:17:43 +0000 (18:17 +0100)]
spapr: Generate FDT fragment for LMBs at configure connector time
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <
155059666331.
1466090.
6766540766297333313.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Greg Kurz [Tue, 19 Feb 2019 17:17:38 +0000 (18:17 +0100)]
spapr_drc: Allow FDT fragment to be added later
The current logic is to provide the FDT fragment when attaching a device
to a DRC. This works perfectly fine for our current hotplug support, but
soon we will add support for PHB hotplug which has some constraints, that
CPU, PCI and LMB devices don't seem to have.
The first constraint is that the "ibm,dma-window" property of the PHB
node requires the IOMMU to be configured, ie, spapr_tce_table_enable()
has been called, which happens during PHB reset. It is okay in the case
of hotplug since the device is reset before the hotplug handler is
called. On the contrary with coldplug, the hotplug handler is called
first and device is only reset during the initial system reset. Trying
to create the FDT fragment on the hotplug path in this case, would
result in somthing like this:
ibm,dma-window = < 0x80000000 0x00 0x00 0x00 0x00 >;
This will cause linux in the guest to panic, by simply removing and
re-adding the PHB using the drmgr command:
page = alloc_pages_node(nid, GFP_KERNEL, get_order(sz));
if (!page)
panic("iommu_init_table: Can't allocate %ld bytes\n", sz);
The second and maybe more problematic constraint is that the
"interrupt-map" property needs to reference the interrupt controller
node using the very same phandle that SLOF has already exposed to the
guest. QEMU requires SLOF to call the private KVMPPC_H_UPDATE_DT hcall
at some point to know about this phandle. With the latest QEMU and SLOF,
this happens when SLOF gets quiesced. This means that if the PHB gets
hotplugged after CAS but before SLOF quiesce, then we're sure that the
phandle is not known when the hotplug handler is called.
The FDT is only needed when the guest first invokes RTAS to configure
the connector actually, long after SLOF quiesce. Let's postpone the
creation of FDT fragments for PHBs to rtas_ibm_configure_connector().
Since we only need this for PHBs, introduce a new method in the base
DRC class for that. DRC subtypes will be converted to use it in
subsequent patches.
Allow spapr_drc_attach() to be passed a NULL fdt argument if the method
is available. When all DRC subtypes have been converted, the fdt argument
will eventually disappear.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <
155059665823.
1466090.
18358845122627355537.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Benjamin Herrenschmidt [Fri, 15 Feb 2019 17:00:29 +0000 (18:00 +0100)]
target/ppc: Basic POWER9 bare-metal radix MMU support
No guest support yet
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <
20190215170029.15641-13-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Benjamin Herrenschmidt [Fri, 15 Feb 2019 17:00:28 +0000 (18:00 +0100)]
target/ppc: Support for POWER9 native hash
(Might need more patch splitting)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <
20190215170029.15641-12-clg@kaod.org>
[dwg: Hack to fix compile with some earlier include tweaks of mine]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Benjamin Herrenschmidt [Fri, 15 Feb 2019 17:00:27 +0000 (18:00 +0100)]
target/ppc: Rename PATB/PATBE -> PATE
That "b" means "base address" and thus shouldn't be in the name
of actual entries and related constants.
This patch keeps the synthetic patb_entry field of the spapr
virtual hypervisor unchanged until I figure out if that has
an impact on the migration stream.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <
20190215170029.15641-11-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Benjamin Herrenschmidt [Fri, 15 Feb 2019 17:00:26 +0000 (18:00 +0100)]
target/ppc: Flush the TLB locally when the LPIDR is written
Our TCG TLB only tags whether it's a HV vs a guest access, so it must
be flushed when the LPIDR is changed.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <
20190215170029.15641-10-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Benjamin Herrenschmidt [Fri, 15 Feb 2019 17:00:25 +0000 (18:00 +0100)]
target/ppc: Fix synchronization of mttcg with broadcast TLB flushes
Let's use the generic helper tlb_flush_all_cpus_synced() instead
of iterating the CPUs ourselves.
We do lose the optimization of clearing the "other" CPUs "need flush"
flags but this shouldn't be a problem in practice.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <
20190215170029.15641-9-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Benjamin Herrenschmidt [Fri, 15 Feb 2019 17:00:24 +0000 (18:00 +0100)]
target/ppc: Add basic support for "new format" HPTE as found on POWER9
POWER9 (arch v3) slightly changes the HPTE format. The B bits move
from the first to the second half of the HPTE, and the AVPN/ARPN
are slightly shorter.
However, under SPAPR, the hypercalls still take the old format
(and probably will for the foreseable future).
The simplest way to support this is thus to convert the HPTEs from
new to old format when reading them if the MMU model is v3 and there
is no virtual hypervisor, leaving the rest of the code unchanged.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <
20190215170029.15641-8-clg@kaod.org>
[dwg: Moved function to .c since there was no real need for it in the .h]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Benjamin Herrenschmidt [Fri, 15 Feb 2019 17:00:23 +0000 (18:00 +0100)]
target/ppc: Fix ordering of hash MMU accesses
With mttcg, we can have MMU lookups happening at the same time
as the guest modifying the page tables.
Since the HPTEs of the hash table MMU contains two words (or
double worlds on 64-bit), we need to make sure we read them
in the right order, with the correct memory barrier.
Additionally, when using emulated SPAPR mode, the hypercalls
writing to the hash table must also perform the udpates in
the right order.
Note: This part is still not entirely correct
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <
20190215170029.15641-7-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Benjamin Herrenschmidt [Fri, 15 Feb 2019 17:00:21 +0000 (18:00 +0100)]
target/ppc: Fix #include guard in mmu-book3s-v3.h
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <
20190215170029.15641-5-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Benjamin Herrenschmidt [Fri, 15 Feb 2019 17:00:20 +0000 (18:00 +0100)]
target/ppc: Re-enable RMLS on POWER9 for virtual hypervisors
Historically the 64-bit server MMU supports two way of configuring the
guest "real mode" mapping:
- The "RMA" with is a single chunk of physically contiguous
memory remapped as guest real, and controlled by the RMLS
field in the LPCR register and the RMOR register.
- The "VRMA" which uses special PTEs inserted in the partition
hash table by the hypervisor.
POWER9 deprecates the former, which is reflected by the filtering
done in ppc_store_lpcr() which effectively prevents setting of
the RMLS field.
However, when using fully emulated SPAPR machines, our qemu code
currently only knows how to define the guest real mode memory using
RMLS.
Thus you cannot run a SPAPR machine anymore with a POWER9 CPU
model today.
This works around it with a quirk in ppc_store_lpcr() to continue
allowing the RMLS field to be set when using a virtual hypervisor.
Ultimately we will want to implement configuring a VRMA instead
which will also be necessary if we want to migrate a SPAPR guest
between TCG and KVM but this is a lot more work.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <
20190215170029.15641-4-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Benjamin Herrenschmidt [Fri, 15 Feb 2019 17:00:19 +0000 (18:00 +0100)]
target/ppc/mmu: Use LPCR:HR to chose radix vs. hash translation
Now that LPCR:HR is set properly for SPAPR, use it for deciding
the translation type, which also works for bare metal
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <
20190215170029.15641-3-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Benjamin Herrenschmidt [Fri, 15 Feb 2019 17:00:18 +0000 (18:00 +0100)]
target/ppc/spapr: Set LPCR:HR when using Radix mode
The HW relies on LPCR:HR along with the PATE to determine whether
to use Radix or Hash mode. In fact it uses LPCR:HR more commonly
than the PATE.
For us, it's also more efficient to do so, especially since unlike
the HW we do not maintain a cache of the current PATE and HV PATE
in a generic place.
Prepare the grounds for that by ensuring that LPCR:HR is set
properly on SPAPR machines.
Another option would have been to use a callback to get the PATE
but this gets messy when implementing bare metal support, it's
much simpler (and faster) to use LPCR.
Since existing migration streams may not have it, fix it up in
spapr_post_load() as well based on the pseudo-PATE entry that
we keep.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <
20190215170029.15641-2-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
David Hildenbrand [Mon, 18 Feb 2019 09:22:02 +0000 (10:22 +0100)]
tests/device-plug: Add memory unplug request test for spapr
We can easily test this, just like PCI. On x86 ACPI, we need guest
interaction to make it work, so it is not that easy to test. We might
add tests for that later on.
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <
20190218092202.26683-7-david@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
David Hildenbrand [Mon, 18 Feb 2019 09:22:01 +0000 (10:22 +0100)]
tests/device-plug: Add CPU core unplug request test for spapr
We can easily test this, just like PCI. On s390x, cpu unplug is not
supported. On x86 ACPI, cpu unplug requires guest interaction to work, so
it can't be tested that easily. We might add tests for ACPI later.
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <
20190218092202.26683-6-david@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
David Hildenbrand [Mon, 18 Feb 2019 09:22:00 +0000 (10:22 +0100)]
tests/device-plug: Add CCW unplug test for s390x
As CCW unplugs are surprise removals without asking the guest first,
we can test this without any guest interaction.
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <
20190218092202.26683-5-david@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
David Hildenbrand [Mon, 18 Feb 2019 09:21:59 +0000 (10:21 +0100)]
tests/device-plug: Add a simple PCI unplug request test
The issue with testing asynchronous unplug requests it that they usually
require a running guest to handle the request. However, to test if
unplug of PCI devices works, we can apply a nice little trick on some
architectures:
On system reset, x86 ACPI, s390x and spapr will perform the unplug,
resulting in the device of interest to get deleted and a DEVICE_DELETED
event getting sent.
On s390x, we still get a warning
qemu-system-s390x: -device virtio-mouse-pci,id=dev0:
warning: Plugging a PCI/zPCI device without the 'zpci' CPU feature
enabled; the guest will not be able to see/use this device
This will be fixed soon, when we enable the zpci CPU feature always
(Conny already has a patch for this queued).
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Collin Walling <walling@linux.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <
20190218092202.26683-4-david@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
David Hildenbrand [Mon, 18 Feb 2019 09:21:58 +0000 (10:21 +0100)]
spapr: support memory unplug for qtest
Fake availability of OV5_HP_EVT, so we can test memory unplug in qtest.
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <
20190218092202.26683-3-david@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
David Hildenbrand [Mon, 18 Feb 2019 09:21:57 +0000 (10:21 +0100)]
cpus: Properly release the iothread lock when killing a dummy VCPU
This enables CPU unplug under qtest.
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <
20190218092202.26683-2-david@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Prasad J Pandit [Mon, 18 Feb 2019 18:13:49 +0000 (23:43 +0530)]
ppc: add host-serial and host-model machine attributes (CVE-2019-8934)
On ppc hosts, hypervisor shares following system attributes
- /proc/device-tree/system-id
- /proc/device-tree/model
with a guest. This could lead to information leakage and misuse.[*]
Add machine attributes to control such system information exposure
to a guest.
[*] https://wiki.openstack.org/wiki/OSSN/OSSN-0028
Reported-by: Daniel P. Berrangé <berrange@redhat.com>
Fix-suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-Id: <
20190218181349.23885-1-ppandit@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Benjamin Herrenschmidt [Fri, 15 Feb 2019 16:16:48 +0000 (17:16 +0100)]
target/ppc: Add support for LPCR:HEIC on POWER9
This controls whether the External Interrupt (0x500) can be
delivered to the hypervisor or not.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <
20190215161648.9600-11-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Benjamin Herrenschmidt [Fri, 15 Feb 2019 16:16:47 +0000 (17:16 +0100)]
target/ppc: Add POWER9 external interrupt model
Adds support for the Hypervisor directed interrupts in addition to the
OS ones.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: - modified the icp_realize() and xive_tctx_realize() to take
into account explicitely the POWER9 interrupt model
- introduced a specific power9_set_irq for POWER9 ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <
20190215161648.9600-10-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>