While we're at it, emit the opcode adjacent to where we currently
record data for search_pc. This puts gen_io_start et al on the
"correct" side of the marker.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
With an eye toward making it mandatory.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Rename ELF_MACHINE to be PPC specific. This is used as-is by the
various PPC bootloaders and is locally defined to ELF_MACHINE in linux
user in PPC specific ifdeffery.
This removes another architecture specific definition from the global
namespace (as desired by multi-arch).
Cc: Alexander Graf <agraf@suse.de>
Cc: qemu-ppc@nongnu.org
Reviewed-by: Richard Henderson <rth@twiddle.net>
Acked-By: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The PAPR interface defines a hypercall to pass high-quality
hardware generated random numbers to guests. Recent kernels can
already provide this hypercall to the guest if the right hardware
random number generator is available. But in case the user wants
to use another source like EGD, or QEMU is running with an older
kernel, we should also have this call in QEMU, so that guests that
do not support virtio-rng yet can get good random numbers, too.
This patch now adds a new pseudo-device to QEMU that either
directly provides this hypercall to the guest or is able to
enable the in-kernel hypercall if available. The in-kernel
hypercall can be enabled with the use-kvm property, e.g.:
qemu-system-ppc64 -device spapr-rng,use-kvm=true
For handling the hypercall in QEMU instead, a "RngBackend" is
required since the hypercall should provide "good" random data
instead of pseudo-random (like from a "simple" library function
like rand() or g_random_int()). Since there are multiple RngBackends
available, the user must select an appropriate back-end via the
"rng" property of the device, e.g.:
qemu-system-ppc64 -object rng-random,filename=/dev/hwrng,id=gid0 \
-device spapr-rng,rng=gid0 ...
See http://wiki.qemu-project.org/Features-Done/VirtIORNG for
other example of specifying RngBackends.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
For setting debug watchpoints, sPAPR guests use H_SET_MODE hypercall.
The existing QEMU H_SET_MODE handler does not support this but
the KVM handler in HV KVM does. However it is not enabled.
This enables the in-kernel H_SET_MODE handler which handles:
- Completed Instruction Address Breakpoint Register
- Watch point 0 registers.
The rest is still handled in QEMU.
Reported-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The xscmpodp and xscmpudp instructions only have the AX, BX bits in
there encoding, the lowest bit (usually TX) is marked as an invalid
bit. We therefore can't decode them with GEN_XX2FORM, which decodes
the two lowest bit.
Introduce a new form GEN_XX2FORM, which decodes AX and BX and mark
the lowest bit as invalid.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
For vector instructions, the helpers get pointers to the vector register
in arguments. Some operands might point to the same register, including
the operand holding the result.
When emulating instructions which access the vector elements in a
non-linear way, we need to store the result in an temporary variable.
This fixes openssl when emulating a POWER8 CPU.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
We are setting SRR0 to the instruction before the one causing the
unaligned exception. A quick testcase:
. = 0x100
.globl _start
_start:
/* Cause a 0x600 */
li 3,0x1
stwcx. 3,0,3
1: b 1b
. = 0x600
1: b 1b
Built into something we can load as a BIOS image:
gcc -mbig -c test.S
ld -EB -Ttext 0x0 -o test test.o
objcopy -O binary test test.bin
Run with:
qemu-system-ppc64 -nographic -bios test.bin
Shows an incorrect SRR0 (points at the li):
SRR0 0000000000000100
With the patch we get the correct SRR0:
SRR0 0000000000000104
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
QEMU does have an I/O thread now, that can be interrupted at any time
because the VCPU thread runs outside the iothread mutex.
Therefore, the kvmppc_timer_hack is obsolete. Remove it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Move target-specific code out of /monitor.c to /target-*/monitor.c,
this will avoid code cluttering and using random ifdeffery. The solution
is quite simple, but solves the issue of the separation of target-specific
code from monitor.
Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <1441899541-1856-3-git-send-email-den@openvz.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This is set to true when the index is for an instruction fetch
translation.
The core get_page_addr_code() sets it, as do the SOFTMMU_CODE_ACCESS
acessors.
All targets ignore it for now, and all other callers pass "false".
This will allow targets who wish to split the mmu index between
instruction and data accesses to do so. A subsequent patch will
do just that for PowerPC.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Message-Id: <1439796853-4410-2-git-send-email-benh@kernel.crashing.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Remove un-needed usages of ENV_GET_CPU() by converting the APIs to use
CPUState pointers and retrieving the env_ptr as minimally needed.
Scripted conversion for target-* change:
for I in target-*/cpu.h; do
sed -i \
's/\(^int cpu_[^_]*_exec(\)[^ ][^ ]* \*s);$/\1CPUState *cpu);/' \
$I;
done
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
The callers (most of them in target-foo/cpu.c) to this function all
have the cpu pointer handy. Just pass it to avoid an ENV_GET_CPU() from
core code (in exec.c).
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Cc: Anthony Green <green@moxielogic.com>
Cc: Jia Liu <proljc@gmail.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Move cpu_exec_init() call from instance_init to realize. This allows
any failures from cpu_exec_init() to be handled appropriately.
Also add corresponding cpu_exec_exit() call from unrealize.
cpu_dt_id assignment from instance_init is no longer needed since
correct assignment for cpu_dt_id is already present in realizefn.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
[AF: Keep calling cpu_exec_init() for CONFIG_USER_ONLY]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Add an Error argument to cpu_exec_init() to let users collect the
error. This is in preparation to change the CPU enumeration logic
in cpu_exec_init(). With the new enumeration logic, cpu_exec_init()
can fail if cpu_index values corresponding to max_cpus have already
been handed out.
Since all current callers of cpu_exec_init() are from instance_init,
use error_abort Error argument to abort in case of an error.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
Bugfixes and Daniel Berrange's crypto library.
# gpg: Signature made Wed Jul 8 12:12:29 2015 BST using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* remotes/bonzini/tags/for-upstream:
ossaudio: fix memory leak
ui: convert VNC to use generic cipher API
block: convert qcow/qcow2 to use generic cipher API
ui: convert VNC websockets to use crypto APIs
block: convert quorum blockdrv to use crypto APIs
crypto: add a nettle cipher implementation
crypto: add a gcrypt cipher implementation
crypto: introduce generic cipher API & built-in implementation
crypto: move built-in D3DES implementation into crypto/
crypto: move built-in AES implementation into crypto/
crypto: introduce new module for computing hash digests
vl: move rom_load_all after machine init done
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Current PPC code relies on -mem-path being used in order for
hugepage support to be detected. With the introduction of
MemoryBackendFile we can now handle this via:
-object memory-file-backend,mem-path=...,id=hugemem0 \
-numa node,id=mem0,memdev=hugemem0
Management tools like libvirt treat the 2 approaches as
interchangeable in some cases, which can lead to user-visible
regressions even for previously supported guest configurations.
Fix these by also iterating through any configured memory
backends that may be backed by hugepages.
Since the old code assumed hugepages always backed the entirety
of guest memory, play it safe an pick the minimum across the
max pages sizes for all backends, even ones that aren't backed
by hugepages.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
To prepare for a generic internal cipher API, move the
built-in AES implementation into the crypto/ directory
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1435770638-25715-3-git-send-email-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This opens the path to get rid of the iothread lock on vmexits in KVM
mode. On x86, the in-kernel irqchips has to be used because we otherwise
need to synchronize APIC and other per-cpu state accesses that could be
changed concurrently.
Regarding pre/post-run callbacks, s390x and ARM should be fine without
specific locking as the callbacks are empty. MIPS and POWER require
locking for the pre-run callback.
For the handle_exit callback, it is non-empty in x86, POWER and s390.
Some POWER cases could do without the locking, but it is left in
place for now.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1434646046-27150-7-git-send-email-pbonzini@redhat.com>
disas does not need to access the CPU env for any reason. Change the
APIs to accept CPU pointers instead. Small change pattern needs to be
applied to all target translate.c. This brings us closer to making
disas.o a common-obj and less architecture specific in general.
Cc: Richard Henderson <rth@twiddle.net>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Cc: Jia Liu <proljc@gmail.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Acked-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
We create optional sections with this patch. But we already have
optional subsections. Instead of having two mechanism that do the
same, we can just generalize it.
For subsections we just change:
- Add a needed function to VMStateDescription
- Remove VMStateSubsection (after removal of the needed function
it is just a VMStateDescription)
- Adjust the whole tree, moving the needed function to the corresponding
VMStateDescription
Signed-off-by: Juan Quintela <quintela@redhat.com>
qemu currently implements the hypercalls H_LOGICAL_CI_LOAD and
H_LOGICAL_CI_STORE as PAPR extensions. These are used by the SLOF firmware
for IO, because performing cache inhibited MMIO accesses with the MMU off
(real mode) is very awkward on POWER.
This approach breaks when SLOF needs to access IO devices implemented
within KVM instead of in qemu. The simplest example would be virtio-blk
using an iothread, because the iothread / dataplane mechanism relies on
an in-kernel implementation of the virtio queue notification MMIO.
To fix this, an in-kernel implementation of these hypercalls has been made,
(kernel commit 99342cf "kvmppc: Implement H_LOGICAL_CI_{LOAD,STORE} in KVM"
however, the hypercalls still need to be enabled from qemu. This performs
the necessary calls to do so.
It would be nice to provide some warning if we encounter a problematic
device with a kernel which doesn't support the new calls. Unfortunately,
I can't see a way to detect this case which won't either warn in far too
many cases that will probably work, or which is horribly invasive.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
On ARM the MSI data corresponds to the shared peripheral interrupt (SPI)
ID. This latter equals to the SPI index + 32. to retrieve the SPI index,
matching the gsi, an architecture specific function is introduced.
Signed-off-by: Eric Auger <eric.auger@linaro.org>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Let kvm_arch_post_run convert fields in the kvm_run struct to MemTxAttrs.
These are then passed to address_space_rw.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit was generated mechanically by coccinelle from the following
semantic patch:
@@
expression val;
@@
- (ffs(val) - 1)
+ ctz32(val)
The call sites have been audited to ensure the ffs(0) - 1 == -1 case
never occurs (due to input validation, asserts, etc). Therefore we
don't need to worry about the fact that ctz32(0) == 32.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1427124571-28598-5-git-send-email-stefanha@redhat.com
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The invalidation code introduced in commit 2360b works by inverting most bits
of env->msr to ensure that hreg_store_msr() will forcibly update the CPU env
state to reflect the new msr value post-migration. Unfortunately
hreg_store_msr() is called with alter_hv set to 0 which preserves the MSR_HVB
state from the CPU env which is now the opposite value to what it should be.
Ensure that we don't invalidate the msr MSR_HVB bit during cpu_post_load so
that the correct value is restored. This fixes suspend/resume for PPC64.
Reported-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Alexander Graf <agraf@suse.de>
Message-id: 1429255009-12751-1-git-send-email-mark.cave-ayland@ilande.co.uk
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
IBM uses low 16bits to specify the chip version of a POWER CPU.
So there has never been an actual silicon with PVR = 0x003B0000.
The first silicon would have PVR 0x003B0100 but it is very unlikely
to find it in any machine shipped to any customer as it was too raw.
This removes CPU_POWERPC_POWER5P_v00 definition and changes
POWER5+ and POWERgs aliases (which are synonyms) to point to
POWER5+_v2.1 which can still be found in real machines.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Andreas Färber <afaerber@suse.de>
[agraf: fix commit message]
Signed-off-by: Alexander Graf <agraf@suse.de>
This is improved type checking for the translators -- it's no longer
possible to accidentally swap arguments to the branch functions.
Note that the code generating backends still manipulate labels as int.
With notable exceptions, the scope of the change is just a few lines
for each target, so it's not worth building extra machinery to do this
change in per-target increments.
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Cc: Anthony Green <green@moxielogic.com>
Cc: Jia Liu <proljc@gmail.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
A bunch of fixes all over the place, some of the
bugs fixed are actually regressions.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
misc fixes and cleanups
A bunch of fixes all over the place, some of the
bugs fixed are actually regressions.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Wed Mar 11 17:48:30 2015 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
# 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: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
# Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469
* remotes/mst/tags/for_upstream: (25 commits)
virtio-scsi: remove empty wrapper for cmd
virtio-scsi: clean out duplicate cdb field
virtio-scsi: fix cdb/sense size
uapi/virtio_scsi: allow overriding CDB/SENSE size
virtio-scsi: drop duplicate CDB/SENSE SIZE
exec: don't include hw/boards for linux-user
acpi: specify format for build_append_namestring
MAINTAINERS: drop aliguori@amazon.com
tpm: Move memory subregion function into realize function
virtio-pci: Convert to realize()
pci: Convert pci_nic_init() to Error to avoid qdev_init()
machine: query mem-merge machine property
machine: query dump-guest-core machine property
hw/boards: make it safe to include for linux-user
machine: query phandle-start machine property
machine: query kvm-shadow-mem machine property
kvm: add machine state to kvm_arch_init
machine: query kernel-irqchip property
machine: allowed/required kernel-irqchip support
machine: replace qemu opts with iommu property
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Needed to query machine's properties.
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
5b79b1c "target-ppc: Create versionless CPU class per family if KVM" added
a dynamic CPU class registration with the name of the CPU family which
QEMU is running on. For example, this allowed specifying "-cpu POWER7"
on every version of POWER7 machine, not just the one which POWER7 was
an alias of. I.e. before 5b79b1c, "-cpu POWER7" would not work on real
POWER7 2.1 and would work on POWER7 2.3 only. The same story for POWER8.
However that patch broke POWER5+ support as POWER5+ CPU uses the same
name as the CPU class so dynamic registering of the POWER5+ class failed.
This redefines POWER5+ server CPUs by adding a version to them and adding
an alias for TCG case. KVM will use dynamically registered CPUs.
While we are here, do the same for 970 CPU.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
This patch adds basic support for the VTB.
PowerISA:
The Virtual Time Base (VTB) is a 64-bit incrementing counter.
Virtual Time Base increments at the same rate as the Time Base until its value
becomes 0xFFFF_FFFF_FFFF_FFFF (2 64 - 1); at the next increment its value
becomes 0x0000_0000_0000_0000. There is no interrupt or other indication when
this occurs.
The operation of the Virtual Time Base has the following additional
properties.
1. Loading a GPR from the Virtual Time Base has no effect on the accuracy of
the Virtual Time Base.
2. Copying the contents of a GPR to the Virtual Time Base replaces the
contents of the Virtual Time Base with the contents of the GPR.
Signed-off-by: Cyril Bur <cyril.bur@au1.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Since env->msr has already been restored by the time cpu_post_load is called,
make sure that ppc_store_msr() is explicitly called with all msr bits except
MSR_TGPR marked as invalid.
This solves the issue where MSR flags aren't set correctly when restoring a VM
snapshot, in particular the internal env->excp_prefix value when MSR_EP has
been altered by a guest.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Alexander Graf <agraf@suse.de>
Otherwise when cpu_post_load calls ppc_store_sdr1() when restoring a VM
snapshot the value is deemed unchanged and so the internal env->htab*
variables aren't set correctly.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
We look at two sizes specified in ISA (4K, 64K). If not found matching,
we consider it 16MB.
Without this patch we would fail to lookup address above 16MB range.
Below 16MB happened to work before because the kernel have a liner
mapping and we always looked up hash for 0xc000000000000000. The
actual real address was computed by using the 16MB offset
with the real address found with the above hash.
Without Fix:
(gdb) x/16x 0xc000000001000000
0xc000000001000000 <list_entries+453208>: Cannot access memory at address 0xc000000001000000
(gdb)
With Fix:
(gdb) x/16x 0xc000000001000000
0xc000000001000000 <list_entries+453208>: 0x00000000 0x00000000 0x00000000 0x00000000
0xc000000001000010 <list_entries+453224>: 0x00000000 0x00000000 0x00000000 0x00000000
0xc000000001000020 <list_entries+453240>: 0x00000000 0x00000000 0x00000000 0x00000000
0xc000000001000030 <list_entries+453256>: 0x00000000 0x00000000 0x00000000 0x00000000
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
The method by which we count the number of ops emitted
is going to change. Abstract that away into some inlines.
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
The TARGET_HAS_ICE #define is intended to indicate whether a target-*
guest CPU implementation supports the breakpoint handling. However,
all our guest CPUs have that support (the only two which do not
define TARGET_HAS_ICE are unicore32 and openrisc, and in both those
cases the bp support is present and the lack of the #define is just
a bug). So remove the #define entirely: all new guest CPU support
should include breakpoint handling as part of the basic implementation.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 1420484960-32365-1-git-send-email-peter.maydell@linaro.org
on s390 MSI-X irqs are presented as thin or adapter interrupts
for this we have to reorganize the routing entry to contain
valid information for the adapter interrupt code on s390.
To minimize impact on existing code we introduce an architecture
function to fixup the routing entry.
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
New year's release. This time's highlights:
- E500: More RAM support
- pseries: New SLOF release
- Migration fixes
- Simplify USB spawning logic, removes support for explicit usb=off
- TCG: Simple untansactional TM emulation
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Merge remote-tracking branch 'remotes/agraf/tags/signed-ppc-for-upstream' into staging
Patch queue for ppc - 2015-01-07
New year's release. This time's highlights:
- E500: More RAM support
- pseries: New SLOF release
- Migration fixes
- Simplify USB spawning logic, removes support for explicit usb=off
- TCG: Simple untansactional TM emulation
# gpg: Signature made Wed 07 Jan 2015 15:19:37 GMT using RSA key ID 03FEDC60
# gpg: Good signature from "Alexander Graf <agraf@suse.de>"
# gpg: aka "Alexander Graf <alex@csgraf.de>"
* remotes/agraf/tags/signed-ppc-for-upstream: (37 commits)
hw/ppc/mac_newworld: simplify usb controller creation logic
hw/ppc/spapr: simplify usb controller creation logic
hw/ppc/mac_newworld: QOMified mac99 machines
hw/usb: simplified usb_enabled
hw/machine: added machine_usb wrapper
hw/ppc: modified the condition for usb controllers to be created for some ppc machines
target-ppc: Cast ssize_t to size_t before printing with %zx
target-ppc: Mark SR() and gen_sync_exception() as !CONFIG_USER_ONLY
PPC: e500: Fix GPIO controller interrupt number
target-ppc: Introduce Privileged TM Noops
target-ppc: Introduce tcheck
target-ppc: Introduce TM Noops
target-ppc: Introduce tbegin
target-ppc: Introduce TEXASRU Bit Fields
target-ppc: Power8 Supports Transactional Memory
target-ppc: Introduce tm_enabled Bit to CPU State
target-ppc: Introduce Feature Flag for Transactional Memory
target-ppc: Introduce Instruction Type for Transactional Memory
pseries: Update SLOF firmware image to 20141202
PPC: Fix crash on spapr_tce_table_finalize()
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The functions SR() and gen_sync_exception() are only used in softmmu
configs; wrap them in #ifndef CONFIG_USER_ONLY to suppress clang warnings
on the linux-user builds.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Add the supervisory Transactional Memory instructions treclaim. and
trechkpt. The implementation is a degenerate one that simply
checks privileged state, TM availability and then sets CR[0] to
0b0000, just like the unprivileged noops.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Add a degenerate implementation of the Transaction Check (tcheck)
instruction. Since transaction always immediately fail, this
implementation simply sets CR[BF] to 0b1000, i.e. TDOOMED = 1
and MSR[TS] == 0.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Add degenerate implementations of the non-privileged Transactional
Memory instructions tend., tabort*. and tsr. This implementation
simply checks the MSR[TM] bit and then sets CR0 to 0b0000. This
is a reasonable degenerate implementation since transactions are
never allowed to begin and hence MSR[TS] is always 0b00.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Provide a degenerate implementation of the tbegin instruction. This
implementation always fails the transaction, recording the failure
per Book II Section 5.3.2 of the Power ISA V2.07.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Define mnemonics for the various bit fields in the Transaction
EXception And Summary Register (TEXASR).
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
The Power8 processor implements the Transactional Memory Facility
as defined in Power ISA 2.07. Update the initialization code to
indicate this.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Add a bit (tm_enabled) to CPU state that mirrors the MSR[TM] bit.
This is analogous to the other "available" bits in the MSR (FP,
VSX, etc.).
NOTE: Since MSR[TM] occupies big-endian bit 31, the code is wrapped
with a PPC64 bit check.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Add a flag (POWERPC_FLAG_TM) for the Transactional Memory
Facility introduced in Power ISA 2.07.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Add a category (PPC2_TM) for the Transactional Memory instructions
introduced in Power ISA 2.07.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Currently, when the page tables are saved, the kvm_get_htab_header structs
and the ptes are assumed being big endian and dumped as a indistinct blob
in the statefile. This is no longer true when the host is little endian
and this breaks restoration.
This patch unfolds the kvmppc_save_htab routine to write explicitly the
kvm_get_htab_header structs in big endian. The ptes are left untouched.
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
The set_fprf argument to the helper_compute_fprf helper function
is no longer necessary -- the helper is only invoked when FPSCR[FPRF]
is going to be set.
Eliminate the unnecessary argument from the function signature and
its corresponding implementation. Change the return value of the
helper to "void". Update the name of the local variable "ret" to
"fprf", which now makes more sense.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
The set_fprf argument to the gen_compute_fprf() utility is no longer
needed -- gen_compute_fprf() is now called only when FPRF is actually
computed and set. Eliminate the obsolete argument.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Eliminate the set_rc argument from the gen_compute_fprf utility and
the corresponding (and incorrect) implementation. Replace it with
calls to the gen_set_cr1_from_fpscr() utility.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Update the Move From FPSCR (mffs.) instruction to correctly
set CR[1] from FPSCR[FX,FEX,VX,OX].
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
The Floating Point Move instructions (fmr., fabs., fnabs., fneg.,
and fcpsgn.) incorrectly copy FPSCR[FPCC] instead of [FX,FEX,VX,OX].
Furthermore, the current code does this via a call to gen_compute_fprf,
which is awkward since these instructions do not actually set FPRF.
Change the code to use the gen_set_cr1_from_fpscr utility.
Signed-off-by: Tom Musta <tommusta@gmail.com>
[agraf: whitespace fixes]
Signed-off-by: Alexander Graf <agraf@suse.de>
The Power ISA square root instructions (fsqrt[s], frsqrte[s]) must
set the FPSCR[VXSQRT] flag when operating on a negative value.
However, NaNs have no sign and therefore this flag should not
be set when operating on one.
Change the order of the checks in the helper code. Move the
SNaN-to-QNaN macro to the top of the file so that it can be
re-used.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
The Load Vector Element Indexed and Store Vector Element Indexed
instructions compute an effective address in the usual manner.
However, they truncate that address to the natural boundary.
For example, the lvewx instruction will ignore the least significant
two bits of the address and thus load the aligned word of storage.
Fix the generators for these instruction to properly perform this
truncation.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Running barebox on qemu-system-mips* with '-d unimp' overloads
stderr by very very many mips_cpu_handle_mmu_fault() messages:
mips_cpu_handle_mmu_fault address=b80003fd ret 0 physical 00000000180003fd prot 3
mips_cpu_handle_mmu_fault address=a0800884 ret 0 physical 0000000000800884 prot 3
mips_cpu_handle_mmu_fault pc a080cd80 ad b80003fd rw 0 mmu_idx 0
So it's very difficult to find LOG_UNIMP message.
The mips_cpu_handle_mmu_fault() messages appear on enabling ANY
logging! It's not very handy.
Adding separate log category for *_cpu_handle_mmu_fault()
logging fixes the problem.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Acked-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 1418489298-1184-1-git-send-email-antonynpavlov@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The Move to Vector Status and Control Register (mtvscr) instruction
uses VRB as the source register. Fix the code generator to correctly
decode the VRB field. That is, use "rB(ctx->opcode)" instead of
"rD(ctx->opcode)".
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
In the previous patch, the registers were added to init_proc_G2LE
instead of init_proc_e300.
Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Correct the opcodes for the vrfim, vrfin and vrfiz instructions.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Fix the implementation of Vector Compare Bounds Single Precision.
Specifically, fix the case where the operands are unordered -- since
the result is non-zero, the CR[6] field should be set to zero.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Fix the implementation of the Altivec shift left and shift right
instructions (vsl, vsr) which erroneously inverts shift direction
on big endian hosts.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This patch simplifies the AES code, by directly accessing the newly added
S-Box, InvS-Box tables instead of recreating them by using the AES_Te and
AES_Td tables.
Cc: Alexander Graf <agraf@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
The MMU index is an internal detail that should not be needed by the
translator (except to generate loads and stores). Look at the MSR
directly.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
strncat() will append additional '\0' to destination buffer, so need
additional 1 byte for it, or may cause memory overflow, just like other
area within QEMU have done.
And can use g_strdup_printf() instead of strncat(), which may be more
easier understanding.
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Opcode table has direct, indirect and double indirect handlers, but
ppc_cpu_unrealizefn() frees direct handlers which are never allocated
and never frees double indirect handlers.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Define and use macros instead of direct numbers wherever
possible in ppc opcodes table handling code.
This doesn't change any code functionality.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This patch add a new processor type 440x5wDFPU for Virtex 5 PPC440
with an external APU FPU in double precision mode
Signed-off-by: Pierre Mallard <mallard.pierre@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This patch remove limitation for fc[tf]id[*] on 32 bits targets and
add a new insn flag for signed integer 64 conversion PPC2_FP_CVT_S64
Signed-off-by: Pierre Mallard <mallard.pierre@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Adjust the IVOR mask for generic Book E implementation to support bit 59.
This is consistent with the Power ISA.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Reported-by: Pierre Mallard <mallard.pierre@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
By mistake, QEMU uses the maximum compatibility level from the command
line instead of the value negotiated in client-architecture-support call.
This replaces @max_compat with @cpu_version. This only affects guests
which do not support the host CPU.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
This will match the code we use in fpu_helper.c when we flip
CRF_* bit-endianness.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Tested-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
It sets CR1, not CR6 (and the spec agrees).
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Tested-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
It must return 8 and place 8 in XER, but the current code uses
i directly which is 9 at this point of the code.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Tested-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
The legacy_name is useless now, better help
information is provided by description field of property.
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
The descriptions can serve as documentation in the code,
and they can be used to provide better help.
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Optimize mulldo by using the muls2_i64 operation rather than a helper. Eliminate
the obsolete helper code.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Suggested-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
Simplify the implementation of mullwo. For 64 bit CPUs, the result is
the concatenation of the upper and lower parts of the muls2_i32 operation,
which may be slightly better than deposit. For 32 bit CPUs, the lower part
of the muls_i32 operation is moved into the target GPR.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Suggested-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
Eliminate the unecessary ext32s TCG operation and make the multiplication
operation explicitly 32 bit.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Suggested-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
Optimize the special case of rlwnm where MB=0 and ME=31. This can
be implemented using a ROTL.
Suggested-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Tom Musta <tommusta@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
Optimize the special case of rlwinm where MB=0 and ME=31. This can
be implemented as a 32-bit ROTL.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Suggested-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
The special case of rlwimi where MB <= ME and SH = 31-ME can be implemented
with a single TCG deposit operation. This replaces the less general case
of SH = MB = 0 and ME = 31.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Suggested-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
To find out whether we support the KVM hypercall interface we need to ask KVM
on the VM level rather than the global KVM level, because Book3S HV KVM does
not support it and we play conservative when both HV and PR are loaded.
So instead, use the VM helper that falls back to global KVM enumeration. That
should cover all cases.
Signed-off-by: Alexander Graf <agraf@suse.de>
Fix the check for carry in the srad helper to properly construct
the mask -- a "1ULL" must be used (instead of "1") in order to
get the desired result.
Example:
R3 8000000000000000
R4 F3511AD4A2CD4C38
srad 3,3,4
Should *not* set XER[CA] but does without this patch.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
For 64 bit implementations, the special case of a shift by zero
should result in the sign extension of the least significant 32 bits
of the source GPR (not a direct copy of the 64 bit source GPR).
Example:
R3 A6212433228F41DC
srawi 3,3,0
R3 expected : 00000000228F41DC
R3 actual : A6212433228F41DC (without this patch)
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Fix the code to properly detect overflow; the 128 bit signed
product must have all zeroes or all ones in the first 65 bits
otherwise OV should be set.
Example:
R3 45F086A5D5887509
R4 0000000000000002
mulldo 3,3,4
Should set XER[OV].
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
For 64-bit implementations, the mullw result is the 64 bit product
of the sign-extended least significant 32 bits of the source
registers.
Fix the code to properly sign extend the source operands and produce
a 64 bit product.
Example:
R3 00000000002F37A0
R4 41C33D242F816715
mullw 3,3,4
R3 expected : 0008C3146AE0F020
R3 actual : 000000006AE0F020 (without this patch)
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
