PIIX created a made-up value for the UP register since it was read by
guest 32 times for each interrupt.
There's no reason to do this for the new PCIHP: register is only read
once for each interrupt, so clean up code by making read act as an
interrupt acknowledgement: the new UP register clear on read.
In this way we cut down the number of bus rescans
by a factor of 32, and drop a bunch of code that's
now unused.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
the initial sclp defines (without code yet) for standby memory (some
sort of memory hotplug) as well as a cleanup of the kvm register
synchronization.
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Merge remote-tracking branch 'remotes/borntraeger/tags/kvm-s390-20140131' into staging
This patch set contains the sclp defines and events for cpu hotplug,
the initial sclp defines (without code yet) for standby memory (some
sort of memory hotplug) as well as a cleanup of the kvm register
synchronization.
# gpg: Signature made Fri 31 Jan 2014 08:54:29 GMT using RSA key ID B5A61C7C
# gpg: Can't check signature: public key not found
* remotes/borntraeger/tags/kvm-s390-20140131:
s390x/kvm: cleanup partial register handling
sclp-s390: Define new SCLP codes and structures
s390-sclp: SCLP Event integration
s390-sclp: SCLP CPU Info
s390-sclp: Define New SCLP Codes
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
__put_user can write bytes, words (2 bytes) or longwords (4 bytes).
Here obviously words should have been written, but bytes were written,
so values like 0x9c5f were truncated to 0x5f.
Fix this by changing retcode from uint8_t to to uint16_t in
target_signal_frame and also in the unused rt_signal_frame.
This problem was reported by static code analysis (smatch).
Cc: qemu-stable@nongnu.org
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Acked-by: Riku Voipio <riku.voipio@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
This is an internal error as the CRISv10 should mask interrupts
while executing delay slots. Bail out sooner rather than later.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
* implementation of first part of the A64 Neon instruction set
* v8 AArch32 rounding and 16<->64 fp conversion instructions
* fix MIDR value on Zynq boards
* some minor bugfixes/code cleanups
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Merge remote-tracking branch 'pmaydell/tags/pull-target-arm-20140131' into staging
target-arm queue:
* implementation of first part of the A64 Neon instruction set
* v8 AArch32 rounding and 16<->64 fp conversion instructions
* fix MIDR value on Zynq boards
* some minor bugfixes/code cleanups
# gpg: Signature made Fri 31 Jan 2014 15:06:34 GMT using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
* pmaydell/tags/pull-target-arm-20140131: (34 commits)
arm_gic: Fix GICD_ICPENDR and GICD_ISPENDR writes
arm_gic: Introduce define for GIC_NR_SGIS
target-arm: A64: Add SIMD shift by immediate
target-arm: A64: Add simple SIMD 3-same floating point ops
target-arm: A64: Add integer ops from SIMD 3-same group
target-arm: A64: Add logic ops from SIMD 3 same group
target-arm: A64: Add top level decode for SIMD 3-same group
target-arm: A64: Add SIMD scalar 3 same add, sub and compare ops
target-arm: A64: Add SIMD three-different ABDL instructions
target-arm: A64: Add SIMD three-different multiply accumulate insns
target-arm: Add AArch32 SIMD VCVTA, VCVTN, VCVTP and VCVTM
target-arm: Add AArch32 FP VCVTA, VCVTN, VCVTP and VCVTM
target-arm: Add AArch32 SIMD VRINTA, VRINTN, VRINTP, VRINTM, VRINTZ
target-arm: Add set_neon_rmode helper
target-arm: Add support for AArch32 SIMD VRINTX
target-arm: Add support for AArch32 FP VRINTX
target-arm: Add support for AArch32 FP VRINTZ
target-arm: Add support for AArch32 FP VRINTR
target-arm: Add AArch32 FP VRINTA, VRINTN, VRINTP and VRINTM
target-arm: Move arm_rmode_to_sf to a shared location.
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Fix two bugs that would allow changing the state of SGIs through the
ICPENDR and ISPENDRs.
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Instead of hardcoding 16 various places in the code, use a define to
make it more clear what is going on.
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This implements a subset of the AdvSIMD shift operations (namely all the
none saturating or narrowing ones). The actual shift generation code
itself is common for both the scalar and vector cases but wrapped with
either vector element iteration or the fp reg access.
The rounding operations need to take special care to correctly reflect
the result of adding rounding bits on high bits as the intermediates do
not truncate.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Implement a simple subset of the SIMD 3-same floating point
operations. This includes a common helper function used for both
scalar and vector ops; FABD is the only currently implemented
shared op.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Add some of the integer operations in the SIMD 3-same group:
specifically, the comparisons, addition and subtraction.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Add support for the logical operations (ORR, AND, BIC, ORN, EOR, BSL,
BIT and BIF) from the SIMD 3 register same group (C3.6.16).
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Add top level decode for the A64 SIMD three regs same group
(C3.6.16), splitting it into the pairwise, logical, float and
integer subgroups.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Implement the add, sub and compare ops from the SIMD "scalar three same"
group.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Implement the absolute-difference instructions in the SIMD
three-different group: SABAL, SABAL2, UABAL, UABAL2, SABDL,
SABDL2, UABDL, UABDL2.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Add support for the multiply-accumulate instructions from the
SIMD three-different instructions group (C3.6.15):
* skeleton decode of unallocated encodings and split of
the group into its three sub-parts
* framework for handling the 64x64->128 widening subpart
* implementation of the multiply-accumulate instructions
SMLAL, SMLAL2, UMLAL, UMLAL2, SMLSL, SMLSL2, UMLSL, UMLSL2,
UMULL, UMULL2, SMULL, SMULL2
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Add support for the AArch32 Advanced SIMD VCVTA, VCVTN, VCVTP
and VCVTM instructions.
Signed-off-by: Will Newton <will.newton@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add support for the AArch32 floating-point VCVTA, VCVTN, VCVTP
and VCVTM instructions.
Signed-off-by: Will Newton <will.newton@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add support for the AArch32 Advanced SIMD VRINTA, VRINTN, VRINTP
VRINTM and VRINTZ instructions.
Signed-off-by: Will Newton <will.newton@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This helper sets the rounding mode in the standard_fp_status word to
allow NEON instructions to modify the rounding mode whilst using the
standard FPSCR values for everything else.
Signed-off-by: Will Newton <will.newton@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add support for the AArch32 Advanced SIMD VRINTX instruction.
Signed-off-by: Will Newton <will.newton@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add support for the AArch32 floating-point VRINTX instruction.
Signed-off-by: Will Newton <will.newton@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add support for the AArch32 floating-point VRINTZ instruction.
Signed-off-by: Will Newton <will.newton@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add support for the AArch32 floating-point VRINTR instruction.
Signed-off-by: Will Newton <will.newton@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add support for AArch32 ARMv8 FP VRINTA, VRINTN, VRINTP and VRINTM
instructions.
Signed-off-by: Will Newton <will.newton@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This function will be needed for AArch32 ARMv8 support, so move it to
helper.c where it can be used by both targets. Also moves the code out
of line, but as it is quite a large function I don't believe this
should be a significant performance impact.
Signed-off-by: Will Newton <will.newton@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
For blizzard, pl110 and tc6393xb this is harmless, but for pxa2xx
Coverity noticed that it is used inside an "if" statement.
Fix it because it's the file with the highest number of defects
in the whole QEMU tree! Use "do...while (0)", or just remove the
semicolon if there's a single statement in the macro.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This patch uses the fact that the midr variable is now a property
This patch sets the midr variable to the boards custom midr
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: a3754b10d150af72e4688a993e484fa2b9b8fa21.1390176489.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Convert the MIDR register to a property. This allows boards to later set
a custom MIDR value. This has been done in such a way to maintain
compatibility with all existing CPUs and boards
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 878613f2f12d4162f12629522fd99de8df904856.1390176489.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The code which decides whether to set up the ATAGS data structure on
reset was using the wrong conditional, which meant we were creating
an ATAGS structure when doing a device-tree boot if the dtb was
autogenerated by the board. This is harmless, but unnecessary, so
bring it in to line with user-provided-dtb boots.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1388326833-656-1-git-send-email-peter.maydell@linaro.org
Add support for the SIMD scalar copy instruction group (C3.6.7),
which consists of the single instruction DUP (element, scalar).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
This patch adds support for the AdvSIMD modified immediate group
(C3.6.6) with all its suboperations (movi, orr, fmov, mvni, bic).
Signed-off-by: Alexander Graf <agraf@suse.de>
[AJB: new decode struct, minor bug fixes, optimisation]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
This adds support for the all the AdvSIMD vector copy operations
(ARM ARM 3.6.5).
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Add support for the SIMD "across lanes" instruction group (C3.6.4).
Signed-off-by: Michael Matz <matz@suse.de>
[PMM: Updated to current codebase, added fp min/max ops,
added unallocated encoding checks]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Add support for the SIMD ZIP/UZIP/TRN instruction group
(C3.6.3).
Signed-off-by: Michael Matz <matz@suse.de>
[PMM: use new do_vec_get/set etc functions and generally update to new
codebase standards; refactor to pull per-element loop outside switch]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Add support for the SIMD TBL/TBLX instructions (group C3.6.2).
Signed-off-by: Michael Matz <matz@suse.de>
[PMM: rewritten to do more of the decode in translate-a64.c,
and to do only one 64 bit pass at a time in the helper]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Add support for the SIMD EXT instruction (the only one in its
group, C3.6.1).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Add decode skeleton and function placeholders for all the SIMD data
processing instructions. Due to the complexity of this part of the
table the normal extract and switch approach gets very messy very
quickly, so we use a simple data-driven pattern-and-mask approach.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Implement the SIMD ld/st single structure instructions.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
This adds support support for the SIMD load/store
multiple category of instructions.
This also brings in a couple of helper functions for manipulating
sections of the SIMD registers:
* do_vec_get - fetch value from a slice of a vector register
* do_vec_set - set a slice of a vector register
which use vec_reg_offset for consistent processing of offsets in an
endian aware manner. There are also additional helpers:
* do_vec_ld - load value into SIMD
* do_vec_st - store value from SIMD
which load or store a slice of a vector register to memory.
These don't zero extend like the fp variants.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
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Merge remote-tracking branch 'stefanha/tags/tracing-pull-request' into staging
Tracing pull request
# gpg: Signature made Mon 27 Jan 2014 14:51:09 GMT using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.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: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8
* stefanha/tags/tracing-pull-request:
trace: fix simple trace "disable" keyword
trace: add glib 2.32+ static GMutex support
trace: [simple] Do not include "trace/simple.h" in generated tracer headers
tracing: start trace processing thread in final child process
Message-id: 1390834386-23139-1-git-send-email-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The partial register handling (introduced with commits
420840e58b and
3474b67948 ) aimed to improve intercept
handling performance.
It made the code more complicated though. During development for life
migration/init/reset etc it turned out that this might cause several
hard to debug programming errors. With the introduction of ioeventfd
(and future irqfd patches) the qemu intercept handlers are no longer
hot-path. And therefore the partial register handling can be
removed to simplify the code.
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
CC: Jason J. Herne <jjherne@us.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Alexander Graf <agraf@suse.de>
This includes new unit-tests for acpi by Marcel,
hotplug for pci bridges by myself (piix only so far)
and cpu hotplug for q35.
And a bunch of fixes all over the place as usual.
I included the patch to fix memory alignment for q35
as well - even though it limits 32 bit guests to 3G (they
previously could address more memory with PAE).
To remove the limit, this will have to be fixed in seabios.
I also added self as virtio co-maintainer so I don't need
to troll the list for patches to review.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'mst/tags/for_anthony' into staging
acpi,pci,pc,virtio fixes and enhancements
This includes new unit-tests for acpi by Marcel,
hotplug for pci bridges by myself (piix only so far)
and cpu hotplug for q35.
And a bunch of fixes all over the place as usual.
I included the patch to fix memory alignment for q35
as well - even though it limits 32 bit guests to 3G (they
previously could address more memory with PAE).
To remove the limit, this will have to be fixed in seabios.
I also added self as virtio co-maintainer so I don't need
to troll the list for patches to review.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Sun 26 Jan 2014 11:12:09 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
* mst/tags/for_anthony: (35 commits)
MAINTAINERS: add self as virtio co-maintainer
q35: document gigabyte_align
q35: gigabyte alignment for ram
acpi: Fix PCI hole handling on build_srat()
pc: Save size of RAM below 4GB
hw/pci: fix error flow in pci multifunction init
acpi-test: update expected AML since recent changes
pc: ACPI: update acpi-dsdt.hex.generated q35-acpi-dsdt.hex.generated
pc: ACPI: unify source of CPU hotplug IO base/len
pc: ACPI: expose PRST IO range via _CRS
pc: Q35 DSDT: exclude CPU hotplug IO range from PCI bus resources
pc: PIIX DSDT: exclude CPU/PCI hotplug & GPE0 IO range from PCI bus resources
pc: set PRST base in DSDT depending on chipset
acpi: ich9: add CPU hotplug handling to Q35 machine
acpi: factor out common cpu hotplug code for PIIX4/Q35
acpi-build: enable hotplug for PCI bridges
piix4: add acpi pci hotplug support
pcihp: generalization of piix4 acpi
pci: add pci_for_each_bus_depth_first
pc: make: fix dependencies: rebuild when included file is changed
...
Message-id: 1390735289-15563-1-git-send-email-mst@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
