Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210616' into staging

target-arm queue:
* hw/intc/arm_gicv3_cpuif: Tolerate spurious EOIR writes
* handle some UNALLOCATED deco

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210616' into staging

target-arm queue:
* hw/intc/arm_gicv3_cpuif: Tolerate spurious EOIR writes
* handle some UNALLOCATED decode cases correctly rather
than asserting
* hw: virt: consider hw_compat_6_0
* hw/arm: add quanta-gbs-bmc machine
* hw/intc/armv7m_nvic: Remove stale comment
* target/arm: Fix mte page crossing test
* hw/arm: quanta-q71l add pca954x muxes
* target/arm: First few parts of MVE support

# gpg: Signature made Wed 16 Jun 2021 14:34:49 BST
# 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-20210616: (25 commits)
include/qemu/int128.h: Add function to create Int128 from int64_t
bitops.h: Provide hswap32(), hswap64(), wswap64() swapping operations
target/arm: Move expand_pred_b() data to vec_helper.c
target/arm: Add framework for MVE decode
target/arm: Implement MVE LETP insn
target/arm: Implement MVE DLSTP
target/arm: Implement MVE WLSTP insn
target/arm: Implement MVE LCTP
target/arm: Let vfp_access_check() handle late NOCP checks
target/arm: Add handling for PSR.ECI/ICI
target/arm: Handle VPR semantics in existing code
target/arm: Enable FPSCR.QC bit for MVE
target/arm: Provide and use H8 and H1_8 macros
hw/arm: quanta-q71l add pca954x muxes
hw/arm: gsj add pca9548
hw/arm: gsj add i2c comments
target/arm: Fix mte page crossing test
hw/intc/armv7m_nvic: Remove stale comment
hw/arm: quanta-gbs-bmc add i2c comments
hw/arm: add quanta-gbs-bmc machine
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

hw/intc/armv7m_nvic: Remove stale comment

In commit da6d674e509f0939b we split the NVIC code out from the GIC.
This allowed us to specify the NVIC's default value for the num-irq
property (64) in th

hw/intc/armv7m_nvic: Remove stale comment

In commit da6d674e509f0939b we split the NVIC code out from the GIC.
This allowed us to specify the NVIC's default value for the num-irq
property (64) in the usual way in its property list, and we deleted
the previous hack where we updated the value in the state struct in
the instance init function. Remove a stale comment about that hack
which we forgot to delete at that time.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210614161243.14211-1-peter.maydell@linaro.org

show more ...

Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-for-6.1-pull-request' into staging

Trivial patches pull request 20210503

# gpg: Signature made Mon 03 May 2021 09:34:56 BST
# gpg:

Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-for-6.1-pull-request' into staging

Trivial patches pull request 20210503

# gpg: Signature made Mon 03 May 2021 09:34:56 BST
# gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg: issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/trivial-branch-for-6.1-pull-request: (23 commits)
hw/rx/rx-gdbsim: Do not accept invalid memory size
docs: More precisely describe memory-backend-*::id's user
scripts: fix generation update-binfmts templates
docs/system: Document the removal of "compat" property for POWER CPUs
mc146818rtc: put it into the 'misc' category
Do not include exec/address-spaces.h if it's not really necessary
Do not include cpu.h if it's not really necessary
Do not include hw/boards.h if it's not really necessary
Do not include sysemu/sysemu.h if it's not really necessary
hw: Do not include qemu/log.h if it is not necessary
hw: Do not include hw/irq.h if it is not necessary
hw: Do not include hw/sysbus.h if it is not necessary
hw: Remove superfluous includes of hw/hw.h
ui: Fix memory leak in qemu_xkeymap_mapping_table()
hw/usb: Constify VMStateDescription
hw/display/qxl: Constify VMStateDescription
hw/arm: Constify VMStateDescription
vmstate: Constify some VMStateDescriptions
Fix typo in CFI build documentation
hw/pcmcia: Do not register PCMCIA type if not required
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

Do not include cpu.h if it's not really necessary

Stop including cpu.h in files that don't need it.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210416171314.2074665-4-thuth@redhat.

Do not include cpu.h if it's not really necessary

Stop including cpu.h in files that don't need it.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210416171314.2074665-4-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

show more ...

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210108' into staging

target-arm queue:
* intc/arm_gic: Fix gic_irq_signaling_enabled() for vCPUs
* target/arm: Fix MTE0_ACTIVE

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210108' into staging

target-arm queue:
* intc/arm_gic: Fix gic_irq_signaling_enabled() for vCPUs
* target/arm: Fix MTE0_ACTIVE
* target/arm: Implement v8.1M and Cortex-M55 model
* hw/arm/highbank: Drop dead KVM support code
* util/qemu-timer: Make timer_free() imply timer_del()
* various devices: Use ptimer_free() in finalize function
* docs/system: arm: Add sabrelite board description
* sabrelite: Minor fixes to allow booting U-Boot

# gpg: Signature made Fri 08 Jan 2021 15:34:25 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-20210108: (23 commits)
docs/system: arm: Add sabrelite board description
hw/arm: sabrelite: Connect the Ethernet PHY at address 6
hw/msic: imx6_ccm: Correct register value for silicon type
hw/misc: imx6_ccm: Update PMU_MISC0 reset value
exynos4210_mct: Use ptimer_free() in the finalize function to avoid memleaks
musicpal: Use ptimer_free() in the finalize function to avoid memleaks
mss-timer: Use ptimer_free() in the finalize function to avoid memleaks
exynos4210_pwm: Use ptimer_free() in the finalize function to avoid memleaks
exynos4210_rtc: Use ptimer_free() in the finalize function to avoid memleaks
allwinner-a10-pit: Use ptimer_free() in the finalize function to avoid memleaks
digic-timer: Use ptimer_free() in the finalize function to avoid memleaks
target/arm: Remove timer_del()/timer_deinit() before timer_free()
Remove superfluous timer_del() calls
scripts/coccinelle: New script to remove unnecessary timer_del() calls
util/qemu-timer: Make timer_free() imply timer_del()
hw/arm/highbank: Drop dead KVM support code
target/arm: Implement Cortex-M55 model
target/arm: Implement FPCXT_NS fp system register
target/arm: Correct store of FPSCR value via FPCXT_S
hw/intc/armv7m_nvic: Correct handling of CCR.BFHFNMIGN
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

hw/intc/armv7m_nvic: Correct handling of CCR.BFHFNMIGN

The CCR is a register most of whose bits are banked between security
states but where BFHFNMIGN is not, and we keep it in the non-secure
entry

hw/intc/armv7m_nvic: Correct handling of CCR.BFHFNMIGN

The CCR is a register most of whose bits are banked between security
states but where BFHFNMIGN is not, and we keep it in the non-secure
entry of the v7m.ccr[] array. The logic which tries to handle this
bit fails to implement the "RAZ/WI from Nonsecure if AIRCR.BFHFNMINS
is zero" requirement; correct the omission.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201210201433.26262-2-peter.maydell@linaro.org

show more ...

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20201210' into staging

target-arm queue:
* hw/arm/smmuv3: Fix up L1STD_SPAN decoding
* xlnx-zynqmp: Support Xilinx ZynqMP CAN co

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20201210' into staging

target-arm queue:
* hw/arm/smmuv3: Fix up L1STD_SPAN decoding
* xlnx-zynqmp: Support Xilinx ZynqMP CAN controllers
* sbsa-ref: allow to use Cortex-A53/57/72 cpus
* Various minor code cleanups
* hw/intc/armv7m_nvic: Make all of system PPB range be RAZWI/BusFault
* Implement more pieces of ARMv8.1M support

# gpg: Signature made Thu 10 Dec 2020 11:46:43 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-20201210: (36 commits)
hw/arm/armv7m: Correct typo in QOM object name
hw/intc/armv7m_nvic: Implement read/write for RAS register block
target/arm: Implement M-profile "minimal RAS implementation"
hw/intc/armv7m_nvic: Fix "return from inactive handler" check
target/arm: Implement CCR_S.TRD behaviour for SG insns
hw/intc/armv7m_nvic: Support v8.1M CCR.TRD bit
target/arm: Implement new v8.1M VLLDM and VLSTM encodings
target/arm: Implement new v8.1M NOCP check for exception return
target/arm: Implement v8.1M REVIDR register
target/arm: In v8.1M, don't set HFSR.FORCED on vector table fetch failures
target/arm: For v8.1M, always clear R0-R3, R12, APSR, EPSR on exception entry
hw/intc/armv7m_nvic: Update FPDSCR masking for v8.1M
target/arm: Implement FPCXT_S fp system register
target/arm: Factor out preserve-fp-state from full_vfp_access_check()
target/arm: Use new FPCR_NZCV_MASK constant
target/arm: Implement M-profile FPSCR_nzcvqc
target/arm: Implement VLDR/VSTR system register
target/arm: Move general-use constant expanders up in translate.c
target/arm: Refactor M-profile VMSR/VMRS handling
target/arm: Enforce M-profile VMRS/VMSR register restrictions
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

hw/intc/armv7m_nvic: Implement read/write for RAS register block

The RAS feature has a block of memory-mapped registers at offset
0x5000 within the PPB. For a "minimal RAS" implementation we provid

hw/intc/armv7m_nvic: Implement read/write for RAS register block

The RAS feature has a block of memory-mapped registers at offset
0x5000 within the PPB. For a "minimal RAS" implementation we provide
no error records and so the only registers that exist in the block
are ERRIIDR and ERRDEVID.

The "RAZ/WI for privileged, BusFault for nonprivileged" behaviour
of the "nvic-default" region is actually valid for minimal-RAS,
so the main benefit of providing an explicit implementation of
the register block is more accurate LOG_UNIMP messages, and a
framework for where we could add a real RAS implementation later
if necessary.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201119215617.29887-27-peter.maydell@linaro.org

show more ...

target/arm: Implement M-profile "minimal RAS implementation"

For v8.1M the architecture mandates that CPUs must provide at
least the "minimal RAS implementation" from the Reliability,
Availability a

target/arm: Implement M-profile "minimal RAS implementation"

For v8.1M the architecture mandates that CPUs must provide at
least the "minimal RAS implementation" from the Reliability,
Availability and Serviceability extension. This consists of:
* an ESB instruction which is a NOP
-- since it is in the HINT space we need only add a comment
* an RFSR register which will RAZ/WI
* a RAZ/WI AIRCR.IESB bit
-- the code which handles writes to AIRCR does not allow setting
of RES0 bits, so we already treat this as RAZ/WI; add a comment
noting that this is deliberate
* minimal implementation of the RAS register block at 0xe0005000
-- this will be in a subsequent commit
* setting the ID_PFR0.RAS field to 0b0010
-- we will do this when we add the Cortex-M55 CPU model

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201119215617.29887-26-peter.maydell@linaro.org

show more ...

hw/intc/armv7m_nvic: Fix "return from inactive handler" check

In commit 077d7449100d824a4 we added code to handle the v8M
requirement that returns from NMI or HardFault forcibly deactivate
those exc

hw/intc/armv7m_nvic: Fix "return from inactive handler" check

In commit 077d7449100d824a4 we added code to handle the v8M
requirement that returns from NMI or HardFault forcibly deactivate
those exceptions regardless of what interrupt the guest is trying to
deactivate. Unfortunately this broke the handling of the "illegal
exception return because the returning exception number is not
active" check for those cases. In the pseudocode this test is done
on the exception the guest asks to return from, but because our
implementation was doing this in armv7m_nvic_complete_irq() after the
new "deactivate NMI/HardFault regardless" code we ended up doing the
test on the VecInfo for that exception instead, which usually meant
failing to raise the illegal exception return fault.

In the case for "configurable exception targeting the opposite
security state" we detected the illegal-return case but went ahead
and deactivated the VecInfo anyway, which is wrong because that is
the VecInfo for the other security state.

Rearrange the code so that we first identify the illegal return
cases, then see if we really need to deactivate NMI or HardFault
instead, and finally do the deactivation.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201119215617.29887-25-peter.maydell@linaro.org

show more ...

hw/intc/armv7m_nvic: Support v8.1M CCR.TRD bit

v8.1M introduces a new TRD flag in the CCR register, which enables
checking for stack frame integrity signatures on SG instructions.
This bit is not ba

hw/intc/armv7m_nvic: Support v8.1M CCR.TRD bit

v8.1M introduces a new TRD flag in the CCR register, which enables
checking for stack frame integrity signatures on SG instructions.
This bit is not banked, and is always RAZ/WI to Non-secure code.
Adjust the code for handling CCR reads and writes to handle this.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201119215617.29887-23-peter.maydell@linaro.org

show more ...

target/arm: Implement v8.1M REVIDR register

In v8.1M a REVIDR register is defined, which is at address 0xe00ecfc
and is a read-only IMPDEF register providing implementation specific
minor revision i

target/arm: Implement v8.1M REVIDR register

In v8.1M a REVIDR register is defined, which is at address 0xe00ecfc
and is a read-only IMPDEF register providing implementation specific
minor revision information, like the v8A REVIDR_EL1. Implement this.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201119215617.29887-19-peter.maydell@linaro.org

show more ...

hw/intc/armv7m_nvic: Update FPDSCR masking for v8.1M

The FPDSCR register has a similar layout to the FPSCR. In v8.1M it
gains new fields FZ16 (if half-precision floating point is supported)
and LTP

hw/intc/armv7m_nvic: Update FPDSCR masking for v8.1M

The FPDSCR register has a similar layout to the FPSCR. In v8.1M it
gains new fields FZ16 (if half-precision floating point is supported)
and LTPSIZE (always reads as 4). Update the reset value and the code
that handles writes to this register accordingly.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201119215617.29887-16-peter.maydell@linaro.org

show more ...

hw/intc/armv7m_nvic: Make all of system PPB range be RAZWI/BusFault

For M-profile CPUs, the range from 0xe0000000 to 0xe00fffff is the
Private Peripheral Bus range, which includes all of the memory

hw/intc/armv7m_nvic: Make all of system PPB range be RAZWI/BusFault

For M-profile CPUs, the range from 0xe0000000 to 0xe00fffff is the
Private Peripheral Bus range, which includes all of the memory mapped
devices and registers that are part of the CPU itself, including the
NVIC, systick timer, and debug and trace components like the Data
Watchpoint and Trace unit (DWT). Within this large region, the range
0xe000e000 to 0xe000efff is the System Control Space (NVIC, system
registers, systick) and 0xe002e000 to 0exe002efff is its Non-secure
alias.

The architecture is clear that within the SCS unimplemented registers
should be RES0 for privileged accesses and generate BusFault for
unprivileged accesses, and we currently implement this.

It is less clear about how to handle accesses to unimplemented
regions of the wider PPB. Unprivileged accesses should definitely
cause BusFaults (R_DQQS), but the behaviour of privileged accesses is
not given as a general rule. However, the register definitions of
individual registers for components like the DWT all state that they
are RES0 if the relevant component is not implemented, so the
simplest way to provide that is to provide RAZ/WI for the whole range
for privileged accesses. (The v7M Arm ARM does say that reserved
registers should be UNK/SBZP.)

Expand the container MemoryRegion that the NVIC exposes so that
it covers the whole PPB space. This means:
* moving the address that the ARMV7M device maps it to down by
0xe000 bytes
* moving the off and the offsets within the container of all the
subregions forward by 0xe000 bytes
* adding a new default MemoryRegion that covers the whole container
at a lower priority than anything else and which provides the
RAZWI/BusFault behaviour

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201119215617.29887-2-peter.maydell@linaro.org

show more ...

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20201001' into staging

target-arm queue:
* Make isar_feature_aa32_fp16_arith() handle M-profile
* Fix SVE splice
* Fix SVE LDR/

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20201001' into staging

target-arm queue:
* Make isar_feature_aa32_fp16_arith() handle M-profile
* Fix SVE splice
* Fix SVE LDR/STR
* Remove ignore_memory_transaction_failures on the raspi2
* raspi: Various cleanup/refactoring

# gpg: Signature made Thu 01 Oct 2020 15:46:47 BST
# 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-20201001:
hw/arm/raspi: Remove use of the 'version' value in the board code
hw/arm/raspi: Use RaspiProcessorId to set the firmware load address
hw/arm/raspi: Introduce RaspiProcessorId enum
hw/arm/raspi: Use more specific machine names
hw/arm/raspi: Avoid using TypeInfo::class_data pointer
hw/arm/raspi: Move arm_boot_info structure to RaspiMachineState
hw/arm/raspi: Load the firmware on the first core
hw/arm/raspi: Display the board revision in the machine description
hw/arm/raspi: Remove ignore_memory_transaction_failures on the raspi2
hw/arm/bcm2835: Add more unimplemented peripherals
hw/arm/raspi: Define various blocks base addresses
target/arm: Fix SVE splice
target/arm: Fix sve ldr/str
target/arm: Make isar_feature_aa32_fp16_arith() handle M-profile
target/arm: Add ID register values for Cortex-M0
hw/intc/armv7m_nvic: Only show ID register values for Main Extension CPUs
target/arm: Move id_pfr0, id_pfr1 into ARMISARegisters
target/arm: Replace ARM_FEATURE_PXN with ID_MMFR0.VMSA check

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

hw/intc/armv7m_nvic: Only show ID register values for Main Extension CPUs

M-profile CPUs only implement the ID registers as guest-visible if
the CPU implements the Main Extension (all our current CP

hw/intc/armv7m_nvic: Only show ID register values for Main Extension CPUs

M-profile CPUs only implement the ID registers as guest-visible if
the CPU implements the Main Extension (all our current CPUs except
the Cortex-M0 do).

Currently we handle this by having the Cortex-M0 leave the ID
register values in the ARMCPU struct as zero, but this conflicts with
our design decision to make QEMU behaviour be keyed off ID register
fields wherever possible.

Explicitly code the ID registers in the NVIC to return 0 if the Main
Extension is not implemented, so we can make the M0 model set the
ARMCPU struct fields to obtain the correct behaviour without those
values becoming guest-visible.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200910173855.4068-4-peter.maydell@linaro.org

show more ...

target/arm: Move id_pfr0, id_pfr1 into ARMISARegisters

Move the id_pfr0 and id_pfr1 fields into the ARMISARegisters
sub-struct. We're going to want id_pfr1 for an isar_features
check, and moving bot

target/arm: Move id_pfr0, id_pfr1 into ARMISARegisters

Move the id_pfr0 and id_pfr1 fields into the ARMISARegisters
sub-struct. We're going to want id_pfr1 for an isar_features
check, and moving both at the same time avoids an odd
inconsistency.

Changes other than the ones to cpu.h and kvm64.c made
automatically with:
perl -p -i -e 's/cpu->id_pfr/cpu->isar.id_pfr/' target/arm/*.c hw/intc/armv7m_nvic.c

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200910173855.4068-3-peter.maydell@linaro.org

show more ...

Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-for-5.2-pull-request' into staging

Pull request trivial patches 20200901

# gpg: Signature made Tue 01 Sep 2020 15:08:59 BST
# gpg:

Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-for-5.2-pull-request' into staging

Pull request trivial patches 20200901

# gpg: Signature made Tue 01 Sep 2020 15:08:59 BST
# gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg: issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/trivial-branch-for-5.2-pull-request: (44 commits)
docs/system: Fix grammar in documentation
main-loop: Fix comment
hw/display/vga:Remove redundant statement in vga_draw_graphic()
hw/intc: fix default registers value in exynos4210_combiner_read()
usb/bus: Remove dead assignment in usb_get_fw_dev_path()
vfio/platform: Remove dead assignment in vfio_intp_interrupt()
hw/net/virtio-net:Remove redundant statement in virtio_net_rsc_tcp_ctrl_check()
hw/virtio/vhost-user:Remove dead assignment in scrub_shadow_regions()
target/arm/translate-a64:Remove redundant statement in disas_simd_two_reg_misc_fp16()
target/arm/translate-a64:Remove dead assignment in handle_scalar_simd_shli()
hw/arm/omap1:Remove redundant statement in omap_clkdsp_read()
hw/arm/virt-acpi-build:Remove dead assignment in build_madt()
linux-user: Add strace support for printing OFD fcntl operations
util/vfio-helpers: Unify trace-events size format
hw/net/xilinx_axienet: Remove unused code
hw/scsi/scsi-disk: Replace magic '512' value by BDRV_SECTOR_SIZE
hw/ide/pci: Replace magic '512' value by BDRV_SECTOR_SIZE
hw/ide/atapi: Replace magic '512' value by BDRV_SECTOR_SIZE
hw/ide/ahci: Replace magic '512' value by BDRV_SECTOR_SIZE
hw/ide/core: Trivial typo fix
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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hw: Remove superfluous breaks

Remove superfluous breaks, as there is a "return" before them.

Signed-off-by: Liao Pingfang <liao.pingfang@zte.com.cn>
Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
Re

hw: Remove superfluous breaks

Remove superfluous breaks, as there is a "return" before them.

Signed-off-by: Liao Pingfang <liao.pingfang@zte.com.cn>
Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1594631126-36631-1-git-send-email-wang.yi59@zte.com.cn>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200803' into staging

target-arm queue:
* hw/timer/imx_epit: Avoid assertion when CR.SWR is written
* netduino2, netduinoplus2,

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200803' into staging

target-arm queue:
* hw/timer/imx_epit: Avoid assertion when CR.SWR is written
* netduino2, netduinoplus2, microbit: set system_clock_scale so that
SysTick running on the CPU clock works
* target/arm: Avoid maybe-uninitialized warning with gcc 4.9
* target/arm: Fix AddPAC error indication
* Make AIRCR.SYSRESETREQ actually reset the system for the
microbit, mps2-*, musca-*, netduino* boards

# gpg: Signature made Mon 03 Aug 2020 20:29:17 BST
# 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-20200803:
hw/timer/imx_epit: Avoid assertion when CR.SWR is written
hw/arm/nrf51_soc: Set system_clock_scale
target/arm: Avoid maybe-uninitialized warning with gcc 4.9
target/arm: Fix AddPAC error indication
msf2-soc, stellaris: Don't wire up SYSRESETREQ
hw/intc/armv7m_nvic: Provide default "reset the system" behaviour for SYSRESETREQ
include/hw/irq.h: New function qemu_irq_is_connected()
hw/arm/netduino2, netduinoplus2: Set system_clock_scale

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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hw/intc/armv7m_nvic: Provide default "reset the system" behaviour for SYSRESETREQ

The NVIC provides an outbound qemu_irq "SYSRESETREQ" which it signals
when the guest sets the SYSRESETREQ bit in the

hw/intc/armv7m_nvic: Provide default "reset the system" behaviour for SYSRESETREQ

The NVIC provides an outbound qemu_irq "SYSRESETREQ" which it signals
when the guest sets the SYSRESETREQ bit in the AIRCR register. This
matches the hardware design (where the CPU has a signal of this name
and it is up to the SoC to connect that up to an actual reset
mechanism), but in QEMU it mostly results in duplicated code in SoC
objects and bugs where SoC model implementors forget to wire up the
SYSRESETREQ line.

Provide a default behaviour for the case where SYSRESETREQ is not
actually connected to anything: use qemu_system_reset_request() to
perform a system reset. This will allow us to remove the
implementations of SYSRESETREQ handling from the boards where that's
exactly what it does, and also fixes the bugs in the board models
which forgot to wire up the signal:

* microbit
* mps2-an385
* mps2-an505
* mps2-an511
* mps2-an521
* musca-a
* musca-b1
* netduino
* netduinoplus2

We still allow the board to wire up the signal if it needs to, in case
we need to model more complicated reset controller logic or to model
buggy SoC hardware which forgot to wire up the line itself. But
defaulting to "reset the system" is more often going to be correct
than defaulting to "do nothing".

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20200728103744.6909-3-peter.maydell@linaro.org

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Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2020-07-07-v2' into staging

Error reporting patches patches for 2020-07-07

# gpg: Signature made Fri 10 Jul 2020 14:24:42 BST
# gpg:

Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2020-07-07-v2' into staging

Error reporting patches patches for 2020-07-07

# gpg: Signature made Fri 10 Jul 2020 14:24:42 BST
# gpg: using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg: issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-error-2020-07-07-v2: (53 commits)
xen: Use ERRP_GUARD()
nbd: Use ERRP_GUARD()
virtio-9p: Use ERRP_GUARD()
fw_cfg: Use ERRP_GUARD()
pflash: Use ERRP_GUARD()
sd: Use ERRP_GUARD()
scripts: Coccinelle script to use ERRP_GUARD()
error: New macro ERRP_GUARD()
hmp: Ignore Error objects where the return value suffices
qdev: Ignore Error objects where the return value suffices
qemu-img: Ignore Error objects where the return value suffices
error: Avoid error_propagate() after migrate_add_blocker()
qapi: Purge error_propagate() from QAPI core
qapi: Smooth visitor error checking in generated code
qapi: Smooth another visitor error checking pattern
block/parallels: Simplify parallels_open() after previous commit
error: Reduce unnecessary error propagation
error: Eliminate error_propagate() manually
error: Eliminate error_propagate() with Coccinelle, part 2
error: Eliminate error_propagate() with Coccinelle, part 1
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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error: Eliminate error_propagate() with Coccinelle, part 1

When all we do with an Error we receive into a local variable is
propagating to somewhere else, we can just as well receive it there
right

error: Eliminate error_propagate() with Coccinelle, part 1

When all we do with an Error we receive into a local variable is
propagating to somewhere else, we can just as well receive it there
right away. Convert

if (!foo(..., &err)) {
...
error_propagate(errp, err);
...
return ...
}

to

if (!foo(..., errp)) {
...
...
return ...
}

where nothing else needs @err. Coccinelle script:

@rule1 forall@
identifier fun, err, errp, lbl;
expression list args, args2;
binary operator op;
constant c1, c2;
symbol false;
@@
if (
(
- fun(args, &err, args2)
+ fun(args, errp, args2)
|
- !fun(args, &err, args2)
+ !fun(args, errp, args2)
|
- fun(args, &err, args2) op c1
+ fun(args, errp, args2) op c1
)
)
{
... when != err
when != lbl:
when strict
- error_propagate(errp, err);
... when != err
(
return;
|
return c2;
|
return false;
)
}

@rule2 forall@
identifier fun, err, errp, lbl;
expression list args, args2;
expression var;
binary operator op;
constant c1, c2;
symbol false;
@@
- var = fun(args, &err, args2);
+ var = fun(args, errp, args2);
... when != err
if (
(
var
|
!var
|
var op c1
)
)
{
... when != err
when != lbl:
when strict
- error_propagate(errp, err);
... when != err
(
return;
|
return c2;
|
return false;
|
return var;
)
}

@depends on rule1 || rule2@
identifier err;
@@
- Error *err = NULL;
... when != err

Not exactly elegant, I'm afraid.

The "when != lbl:" is necessary to avoid transforming

if (fun(args, &err)) {
goto out
}
...
out:
error_propagate(errp, err);

even though other paths to label out still need the error_propagate().
For an actual example, see sclp_realize().

Without the "when strict", Coccinelle transforms vfio_msix_setup(),
incorrectly. I don't know what exactly "when strict" does, only that
it helps here.

The match of return is narrower than what I want, but I can't figure
out how to express "return where the operand doesn't use @err". For
an example where it's too narrow, see vfio_intx_enable().

Silently fails to convert hw/arm/armsse.c, because Coccinelle gets
confused by ARMSSE being used both as typedef and function-like macro
there. Converted manually.

Line breaks tidied up manually. One nested declaration of @local_err
deleted manually. Preexisting unwanted blank line dropped in
hw/riscv/sifive_e.c.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-35-armbru@redhat.com>

show more ...

qdev: Use returned bool to check for qdev_realize() etc. failure

Convert

foo(..., &err);
if (err) {
...
}

to

if (!foo(..., &err)) {
...
}

for qdev_realize(),

qdev: Use returned bool to check for qdev_realize() etc. failure

Convert

foo(..., &err);
if (err) {
...
}

to

if (!foo(..., &err)) {
...
}

for qdev_realize(), qdev_realize_and_unref(), qbus_realize() and their
wrappers isa_realize_and_unref(), pci_realize_and_unref(),
sysbus_realize(), sysbus_realize_and_unref(), usb_realize_and_unref().
Coccinelle script:

@@
identifier fun = {
isa_realize_and_unref, pci_realize_and_unref, qbus_realize,
qdev_realize, qdev_realize_and_unref, sysbus_realize,
sysbus_realize_and_unref, usb_realize_and_unref
};
expression list args, args2;
typedef Error;
Error *err;
@@
- fun(args, &err, args2);
- if (err)
+ if (!fun(args, &err, args2))
{
...
}

Chokes on hw/arm/musicpal.c's lcd_refresh() with the unhelpful error
message "no position information". Nothing to convert there; skipped.

Fails to convert hw/arm/armsse.c, because Coccinelle gets confused by
ARMSSE being used both as typedef and function-like macro there.
Converted manually.

A few line breaks tidied up manually.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200707160613.848843-5-armbru@redhat.com>

show more ...

Merge remote-tracking branch 'remotes/armbru/tags/pull-qom-2020-06-15' into staging

QOM patches for 2020-06-15

# gpg: Signature made Mon 15 Jun 2020 21:07:19 BST
# gpg: using RSA key

Merge remote-tracking branch 'remotes/armbru/tags/pull-qom-2020-06-15' into staging

QOM patches for 2020-06-15

# gpg: Signature made Mon 15 Jun 2020 21:07:19 BST
# gpg: using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg: issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-qom-2020-06-15: (84 commits)
MAINTAINERS: Make section QOM cover hw/core/*bus.c as well
qdev: qdev_init_nofail() is now unused, drop
qdev: Convert bus-less devices to qdev_realize() with Coccinelle
qdev: Use qdev_realize() in qdev_device_add()
qdev: Make qdev_realize() support bus-less devices
s390x/event-facility: Simplify creation of SCLP event devices
microbit: Eliminate two local variables in microbit_init()
sysbus: sysbus_init_child_obj() is now unused, drop
sysbus: Convert qdev_set_parent_bus() use with Coccinelle, part 4
sysbus: Convert qdev_set_parent_bus() use with Coccinelle, part 3
sysbus: Convert qdev_set_parent_bus() use with Coccinelle, part 2
sysbus: Convert qdev_set_parent_bus() use with Coccinelle, part 1
qdev: Drop qdev_realize() support for null bus
sysbus: Convert to sysbus_realize() etc. with Coccinelle
sysbus: New sysbus_realize(), sysbus_realize_and_unref()
sysbus: Tidy up sysbus_init_child_obj()'s @childsize arg, part 2
hw/arm/armsse: Pass correct child size to sysbus_init_child_obj()
sysbus: Tidy up sysbus_init_child_obj()'s @childsize arg, part 1
microbit: Tidy up sysbus_init_child_obj() @child argument
sysbus: Drop useless OBJECT() in sysbus_init_child_obj() calls
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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