There's no point inlining this, if you hit the exception case you exit
anyway, and not inlining saves about 100K of code size (and cache
footprint).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: removed '__attribute__((noinline))' from original patch ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Those instructions are only available in hypervisor real mode and
allow cache inhibited garded access to devices in that mode.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: fixed checkpatch.pl errors ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Recent server processors use the Hypervisor Emulation Assistance
interrupt for illegal instructions and *some* type of SPR accesses.
Also the code was always generating inval instructions even for priv
violations due to setting the wrong flags
Finally, the checking for PR/HV was open coded everywhere.
This reworks it all, using little helper macros for checking, and
adding the HV interrupt (which gets converted back to program check
in the slow path of excp_helper.c on CPUs that don't want it).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: fixed checkpatch.pl errors ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Under some circumstances, we need to direct ISI and DSI interrupts
at the hypervisor, turning them into HISI/HDSI, and using different
SPRs (HDSISR and HDAR) depending on the combination of MSR_DR and
the corresponding VPM bits in LPCR.
This moves part of the code into helpers that are fixed to select
the right exception type and registers. On pre-P7 processors, LPCR
is 0 which provides the old behaviour of directing the interrupts
at the supervisor.
Thanks to Andrei Warkentin for finding a bug when HV=1
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[clg: Merged a fix on POWERPC_EXCP_HDSI fixing the condition on
msr_hv, from Andrei Warkentin <andrey.warkentin@gmail.com> ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
We were initializing unused ones and missing some
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[clg: fixed checkpatch.pl errors ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This properly implements LPES0 handling for HV vs. !HV mode and
removes the unsupported LPES1. This has been removed from the specs
since ISA v2.07.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: AIL implementation was fixed in commit 5c94b2a5e5. This patch
only contains the bits of the original patch related to LPES0
handling, adapted commit log.
fixed checkpatch.pl errors. ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This allows us to set the appropriate LPCR bits which will be used
when fixing the exception model for the HV mode.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[clg: previous commit 26a7f1291b did not include the LPCR setting as
it was not needed at the time, adapted commit log ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This reworks emulation of the various "rfi" variants. I removed
some masking bits that I couldn't make sense of, the only bit that
I am aware we should mask here is POW, the CPU's MSR mask should
take care of the rest.
This also fixes some problems when running 32-bit userspace under
a 64-bit kernel.
This patch broke 32bit OpenBIOS when run under a 970 cpu. A fix was
proposed here :
https://www.coreboot.org/pipermail/openbios/2016-June/009452.html
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[clg: updated the commit log with the reference of the openbios fix ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
[dwg: Remove hunk which disabled rfi on 64-bit CPUS. The change was
correct, but we need to fix OpenBIOS before applying it]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Every IOMMU has some granularity which MemoryRegionIOMMUOps::translate
uses when translating, however this information is not available outside
the translate context for various checks.
This adds a get_min_page_size callback to MemoryRegionIOMMUOps and
a wrapper for it so IOMMU users (such as VFIO) can know the minimum
actual page size supported by an IOMMU.
As IOMMU MR represents a guest IOMMU, this uses TARGET_PAGE_SIZE
as fallback.
This removes vfio_container_granularity() and uses new helper in
memory_region_iommu_replay() when replaying IOMMU mappings on added
IOMMU memory region.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
[dwg: Removed an unnecessary calculation]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The 75x and 74xx processors have some thermal monitoring SPRs that
some OSes such as MacOS do use. Our current "dumb" implementation
isn't good enough and will cause some versions of MacOS to hang during
boot.
This lifts an improved emulation from MacOnLinux and adapts it to
qemu, thus fixing the problem.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[dwg: Fixed typo in comment, a number of minor checkpatch warnings,
and a compile failure with CONFIG_USER_ONLY]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
In 63ae0915f8, I arranged to use a 32-bit rotate, without
considering the effect of a mask value that wraps around to
the high bits of the word.
[dwg: In 2e11b15 this was partially fixed, but an edge case was still
incorrect, which this fixes]
Signed-off-by: Richard Henderson <rth@twiddle.net>
[dwg: Folded with a revert of 2e11b15, an earlier buggy version of
this patch which already went upstream]
Tested-by: Anton Blanchard <anton@samba.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
While trying to install a fedora container with
"lxc-create -t fedora -- -I qemu-ppc64" the installation abort with
the following error:
qemu: fatal: Unknown exception 0x65537. Aborting
NIP 0000004000927924 LR 00000040009e325c CTR 0000004000927480 XER 0000000000000000 CPU#0
MSR 9000000102806000 HID0 0000000000000000 HF 9000000002806000 iidx 3 didx 3
TB 00248932 1069155773327487
GPR00 00000040009e325c 00000040007ff800 0000004000aba098 0000000000000000
GPR04 00000040007ff878 0000004000dcb588 0000004000dcb830 0000004000a7a098
GPR08 0000000000000000 0000000000000000 00000040007ff878 0000004000927960
GPR12 0000000022022448 0000004000e2aef0 0000000000000000 0000000000000000
GPR16 0000000000000000 0000000000000000 0000000000000002 0000000000000001
GPR20 0000000000000000 0000000000000000 0000000000000000 0000004000800699
GPR24 0000004000e13320 0000000000000000 0000004000ac9ad8 0000004000ac9ae0
GPR28 0000000000000001 00000000100210a0 0000000000000000 0000000000000038
CR 22022442 [ E E - E E G G E ] RES ffffffffffffffff
FPR00 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR04 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR08 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR12 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR16 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR20 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR24 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR28 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPSCR 0000000000000000
/usr/share/lxc/templates/lxc-fedora: line 487: 26661 Aborted (core dumped) chroot . yum -y --nogpgcheck --installroot /run/install install python rpm yum
I've bisected until the commit:
commit b68e60e6f0
Author: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Tue May 3 18:03:33 2016 +0200
ppc: Get out of emulation on SMT "OR" ops
Otherwise tight loops at smt_low for example, which OPAL does,
eat so much CPU that we can't boot a kernel anymore. With that,
I can boot 8 CPUs just fine with powernv.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
We can fix that by preventing to send EXCP_HLT in the case of linux-user mode,
as the main loop doesn't know how to manage it.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The recent commit that added the prom-env-test accidentially
overwrote the check-qtest-ppc-y, check-qtest-ppc64-y and
check-qtest-sparc-y variables instead of extending them.
Fixes: fcbf4a3c0c
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Support for 0 value for memeory coherence is optional and with ppc64
we can always enable memory coherence. Linux kernel did that during
the development of 4.7 kernel. But that resulted in failure in Qemu
in H_ENTER hcall due to below check. The mentioned change was reverted
in the kernel and kernel right now enable memory coherence only if
cache inhibited is not set. Nevertheless update qemu WIMG flag check
to cover the case where we enable memory coherence along with cache
inhibited flag.
In order to handle older and newer kernel version consider both Cache
inhibitted and (cache inhibitted | memory conference) as valid values
for wimg flags.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Version: GnuPG v1
iQEcBAABAgAGBQJXaFInAAoJEJykq7OBq3PI6VsH/0Sfgbdo1RksYuQwb/y92sCW
EN+lxUZ+OLfgrc8PYgNZwfSM3rsfYhznL0MAXOeEe7Ahabi07w7DhGR8WvwfAOlI
G96FRuvrIPfv5u6U6fwS4CvG3TIHVLxfHKCsTpPUmH8U5CNx/x/tpjNiWN1dj6t+
sXybSjYHfZfiZy2tI9MFIFWCdxnF/pl0QAPhbRqc8Y/RQTDrPKRjLpz+nitN/u96
5TS7KlELyQuP91YMmLceYSmIkHbxW703h+iE2n4hov0uZCP8Jil+2Jsd3ziQSRlL
j6LqexQ2ViBGdDSfiZGYES2VPlsHOCwb4G+IgWBStfZg1ppaXENvcDzPrgrB+L4=
=eUnF
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging
# gpg: Signature made Mon 20 Jun 2016 21:29:27 BST
# gpg: using RSA key 0x9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8
* remotes/stefanha/tags/tracing-pull-request: (42 commits)
trace: split out trace events for linux-user/ directory
trace: split out trace events for qom/ directory
trace: split out trace events for target-ppc/ directory
trace: split out trace events for target-s390x/ directory
trace: split out trace events for target-sparc/ directory
trace: split out trace events for net/ directory
trace: split out trace events for audio/ directory
trace: split out trace events for ui/ directory
trace: split out trace events for hw/alpha/ directory
trace: split out trace events for hw/arm/ directory
trace: split out trace events for hw/acpi/ directory
trace: split out trace events for hw/vfio/ directory
trace: split out trace events for hw/s390x/ directory
trace: split out trace events for hw/pci/ directory
trace: split out trace events for hw/ppc/ directory
trace: split out trace events for hw/9pfs/ directory
trace: split out trace events for hw/i386/ directory
trace: split out trace events for hw/isa/ directory
trace: split out trace events for hw/sd/ directory
trace: split out trace events for hw/sparc/ directory
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Blue is no longer active in the QEMU project, so remove him from the list of
SPARC maintainers.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
CC: Blue Swirl <blauwirbel@gmail.com>
Artyom has been working on QEMU's SPARC emulation for several years, providing
initial support for Solaris under qemu-system-sparc and more recently bugfixes
for qemu-system-sparc64 and TCG patch reviews. As work progresses on improving
emulation for sun4u machines and beyond, Artyom has agreed to take on
co-maintainership of SPARC with a focus on 64-bit architecture.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Artyom Tarasenko <atar4qemu@gmail.com>
Move all trace-events for files in the linux-user/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-id: 1466066426-16657-41-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the qom/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-40-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the target-ppc/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 1466066426-16657-39-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the target-s390x/ directory to
their own file.
[Added missing newline in target-s390x/trace-events as suggested by
Cornelia Huck <cornelia.huck@de.ibm.com>.
--Stefan]
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1466066426-16657-38-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the target-sparc/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-37-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the net/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-36-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the audio/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-35-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the ui/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-34-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/alpha/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-33-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/arm/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-32-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/acpi/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-31-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/vfio/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-30-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/s390x/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1466066426-16657-29-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/pci/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-28-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/ppc/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 1466066426-16657-27-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/9pfs/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-26-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/i386/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-25-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/isa/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-24-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/sd/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-23-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/sparc/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-22-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/dma/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-21-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/timer/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-20-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/input/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-19-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/display/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-18-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/nvram/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-17-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/scsi/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-16-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/usb/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-15-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Move all trace-events for files in the hw/misc/ directory to
their own file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1466066426-16657-14-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
