Both os-win32.h and os-posix.h include system header files. Instead
of having osdep.h include them inside its 'extern "C"' block, make
these headers handle that themselves, so that we don't include the
system headers inside 'extern "C"'.
This doesn't fix any current problems, but it's conceptually the
right way to handle system headers.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
The omap_mmc_reset() function resets its SD card via
device_legacy_reset(). We know that the SD card does not have a qbus
of its own, so the new device_cold_reset() function (which resets
both the device and its child buses) is equivalent here to
device_legacy_reset() and we can just switch to the new API.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210430222348.8514-1-peter.maydell@linaro.org
The WFI insn is not system-mode only, though it doesn't usually make
a huge amount of sense for userspace code to execute it. Currently
if you try it in qemu-arm then the helper function will raise an
EXCP_HLT exception, which is not covered by the switch in cpu_loop()
and results in an abort:
qemu: unhandled CPU exception 0x10001 - aborting
R00=00000001 R01=408003e4 R02=408003ec R03=000102ec
R04=00010a28 R05=00010158 R06=00087460 R07=00010158
R08=00000000 R09=00000000 R10=00085b7c R11=408002a4
R12=408002b8 R13=408002a0 R14=0001057c R15=000102f8
PSR=60000010 -ZC- A usr32
qemu:handle_cpu_signal received signal outside vCPU context @ pc=0x7fcbfa4f0a12
Make the WFI helper function return immediately in the usermode
emulator. This turns WFI into a NOP, which is OK because:
* architecturally "WFI is a NOP" is a permitted implementation
* aarch64 Linux kernels use the SCTLR_EL1.nTWI bit to trap
userspace WFI and NOP it (though aarch32 kernels currently
just let WFI do whatever it would do)
We could in theory make the translate.c code special case user-mode
emulation and NOP the insn entirely rather than making the helper
do nothing, but because no real world code will be trying to
execute WFI we don't care about efficiency and the helper provides
a single place where we can make the change rather than having
to touch multiple places in translate.c and translate-a64.c.
Fixes: https://bugs.launchpad.net/qemu/+bug/1926759
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210430162212.825-1-peter.maydell@linaro.org
Switch translate-neon.c.inc from being #included into translate.c
to being its own compilation unit.
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: 20210430132740.10391-14-peter.maydell@linaro.org
Make the remaining functions needed by the translate-neon code
global.
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: 20210430132740.10391-13-peter.maydell@linaro.org
Move the NeonGenThreeOpEnvFn typedef to translate.h together
with the other similar typedefs.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210430132740.10391-12-peter.maydell@linaro.org
The VFPGenFixPointFn typedef is unused; delete it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210430132740.10391-11-peter.maydell@linaro.org
The function vfp_reg_ptr() is used only in translate-neon.c.inc;
move it there.
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: 20210430132740.10391-10-peter.maydell@linaro.org
Switch translate-vfp.c.inc from being #included into translate.c
to being its own compilation unit.
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: 20210430132740.10391-9-peter.maydell@linaro.org
Make the remaining functions which are needed by translate-vfp.c.inc
global.
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: 20210430132740.10391-8-peter.maydell@linaro.org
The functions vfp_load_reg32(), vfp_load_reg64(), vfp_store_reg32()
and vfp_store_reg64() are used only in translate-vfp.c.inc. Move
them to that file.
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: 20210430132740.10391-7-peter.maydell@linaro.org
Move the various gen_aa32* functions and macros out of translate.c
and into translate-a32.h.
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: 20210430132740.10391-6-peter.maydell@linaro.org
Currently the trans functions for m-nocp.decode all live in
translate-vfp.inc.c; move them out into their own translation unit,
translate-m-nocp.c.
The trans_* functions here are pure code motion with no changes.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210430132740.10391-5-peter.maydell@linaro.org
We want to split out the .c.inc files which are currently included
into translate.c so they are separate compilation units. To do this
we need to make some functions which are currently file-local to
translate.c have global scope; create a translate-a32.h paralleling
the existing translate-a64.h as a place for these declarations to
live, so that code moved into the new compilation units can call
them.
The functions made global here are those required by the
m-nocp.decode functions, except that I have converted the whole
family of {read,write}_neon_element* and also both the load_cpu and
store_cpu functions for consistency, even though m-nocp only wants a
few functions from each.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210430132740.10391-4-peter.maydell@linaro.org
The unallocated_encoding() function is the same in both
translate-a64.c and translate.c; make the translate.c function global
and drop the translate-a64.c version. To do this we need to also
share gen_exception_insn(), which currently exists in two slightly
different versions for A32 and A64: merge those into a single
function that can work for both.
This will be useful for splitting up translate.c, which will require
unallocated_encoding() to no longer be file-local. It's also
hopefully less confusing to have only one version of the function
rather than two.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210430132740.10391-3-peter.maydell@linaro.org
Some of the constant expanders defined in translate.c are generically
useful and will be used by the separate C files for VFP and Neon once
they are created; move the expander definitions to translate.h.
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: 20210430132740.10391-2-peter.maydell@linaro.org
In tlbi_aa64_vae2is_write() the calculation
bits = tlbbits_for_regime(env, secure ? ARMMMUIdx_E2 : ARMMMUIdx_SE2,
pageaddr)
has the two arms of the ?: expression reversed. Fix the bug.
Fixes: b6ad6062f1
Reported-by: Rebecca Cran <rebecca@nuviainc.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Reviewed-by: Rebecca Cran <rebecca@nuviainc.com>
Message-id: 20210420123106.10861-1-peter.maydell@linaro.org
A trailing _ makes all the difference to the rendered link.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20210428131316.31390-1-alex.bennee@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Here's the first ppc pull request for qemu-6.1. It has a wide variety
of stuff accumulated during the 6.0 freeze. Highlights are:
* Multi-phase reset cleanups for PAPR
* Preliminary cleanups towards allowing !CONFIG_TCG for the ppc target
* Cleanup of AIL logic and extension to POWER10
* Further improvements to handling of hot unplug failures on PAPR
* Allow much larger numbers of CPU on pseries
* Support for the H_SCM_HEALTH hypercall
* Add support for the Pegasos II board
* Substantial cleanup to hflag handling
* Assorted minor fixes and cleanups
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Merge remote-tracking branch 'remotes/dg-gitlab/tags/ppc-for-6.1-20210504' into staging
ppc patch queue 2021-05-04
Here's the first ppc pull request for qemu-6.1. It has a wide variety
of stuff accumulated during the 6.0 freeze. Highlights are:
* Multi-phase reset cleanups for PAPR
* Preliminary cleanups towards allowing !CONFIG_TCG for the ppc target
* Cleanup of AIL logic and extension to POWER10
* Further improvements to handling of hot unplug failures on PAPR
* Allow much larger numbers of CPU on pseries
* Support for the H_SCM_HEALTH hypercall
* Add support for the Pegasos II board
* Substantial cleanup to hflag handling
* Assorted minor fixes and cleanups
# gpg: Signature made Tue 04 May 2021 06:52:39 BST
# gpg: using RSA key 75F46586AE61A66CC44E87DC6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>" [full]
# gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>" [full]
# gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>" [full]
# gpg: aka "David Gibson (kernel.org) <dwg@kernel.org>" [unknown]
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dg-gitlab/tags/ppc-for-6.1-20210504: (46 commits)
hw/ppc/pnv_psi: Use device_cold_reset() instead of device_legacy_reset()
hw/ppc/spapr_vio: Reset TCE table object with device_cold_reset()
hw/intc/spapr_xive: Use device_cold_reset() instead of device_legacy_reset()
target/ppc: removed VSCR from SPR registration
target/ppc: Reduce the size of ppc_spr_t
target/ppc: Clean up _spr_register et al
target/ppc: Add POWER10 exception model
target/ppc: rework AIL logic in interrupt delivery
target/ppc: move opcode table logic to translate.c
target/ppc: code motion from translate_init.c.inc to gdbstub.c
spapr_drc.c: handle hotunplug errors in drc_unisolate_logical()
spapr.h: increase FDT_MAX_SIZE
spapr.c: do not use MachineClass::max_cpus to limit CPUs
ppc: Rename current DAWR macros and variables
target/ppc: POWER10 supports scv
target/ppc: Fix POWER9 radix guest HV interrupt AIL behaviour
docs/system: ppc: Add documentation for ppce500 machine
roms/u-boot: Bump ppce500 u-boot to v2021.04 to fix broken pci support
roms/Makefile: Update ppce500 u-boot build directory name
ppc/spapr: Add support for implement support for H_SCM_HEALTH
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
usb-host and usb-redirect try to batch bulk transfers by combining many
small usb packets into a single, large transfer request, to reduce the
overhead and improve performance.
This patch adds a size limit of 1 MiB for those combined packets to
restrict the host resources the guest can bind that way.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20210503132915.2335822-6-kraxel@redhat.com>
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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>
Since cpu_check_irqs() doesn't reference to anything outside
of CPUSPARCState, it better belongs to the architectural code
in target/, rather than the hardware specific code in hw/.
Note: while we moved the trace events, we don't rename them.
Remark: this allows us to build the leon3 machine stand alone,
fixing this link failure (because cpu_check_irqs is defined in
hw/sparc/sun4m.c which is only built when CONFIG_SUN4M is selected):
/usr/bin/ld: target_sparc_win_helper.c.o: in function `cpu_put_psr':
target/sparc/win_helper.c:91: undefined reference to `cpu_check_irqs'
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210428141655.387430-5-f4bug@amsat.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
We are going to move this code, fix its style first.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: KONRAD Frederic <frederic.konrad@adacore.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210428141655.387430-4-f4bug@amsat.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: KONRAD Frederic <frederic.konrad@adacore.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210428141655.387430-3-f4bug@amsat.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
When building without the leon3 machine, we get this link failure:
/usr/bin/ld: target_sparc_int32_helper.c.o: in function `leon3_irq_manager':
target/sparc/int32_helper.c:172: undefined reference to `leon3_irq_ack'
This is because the leon3_irq_ack() is declared in hw/sparc/leon3.c,
which is only build when CONFIG_LEON3 is selected.
Fix by moving the leon3_cache_control_int() / leon3_irq_manager()
(which are specific to the leon3 machine) to hw/sparc/leon3.c.
Move the trace events along (but don't rename them).
leon3_irq_ack() is now locally used, declare it static to reduce
its scope.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: KONRAD Frederic <frederic.konrad@adacore.com>
Tested-by: KONRAD Frederic <frederic.konrad@adacore.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20210428141655.387430-2-f4bug@amsat.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Remove the sun4m_hwdefs[] array by moving assigning the
structure fields directly in each machine class_init()
function.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20210503171303.822501-7-f4bug@amsat.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
We are going to move this code, fix its style first.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20210503171303.822501-6-f4bug@amsat.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20210503171303.822501-5-f4bug@amsat.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Factor out the class_init code common to all machines
to sun4m_machine_class_init().
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20210503171303.822501-4-f4bug@amsat.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Instead of passing the sun4m_hwdef structure via
machine_init(), store it into the MachineClass.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20210503171303.822501-3-f4bug@amsat.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Introduce the TYPE_SUN4M_MACHINE and have all sun4m
machines inherit it.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20210503171303.822501-2-f4bug@amsat.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
* Fixes for the DMA space
* New model for ASPEED's Hash and Crypto Engine (Joel and Klaus)
* Acceptance tests (Joel)
* A fix for the XDMA model
* Some extra features for the SMC controller.
* Two new boards : rainier-bmc and quanta-q7l1-bmc (Patrick)
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Merge remote-tracking branch 'remotes/legoater/tags/pull-aspeed-20210503' into staging
Aspeed patches :
* Fixes for the DMA space
* New model for ASPEED's Hash and Crypto Engine (Joel and Klaus)
* Acceptance tests (Joel)
* A fix for the XDMA model
* Some extra features for the SMC controller.
* Two new boards : rainier-bmc and quanta-q7l1-bmc (Patrick)
# gpg: Signature made Mon 03 May 2021 06:23:36 BST
# gpg: using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@kaod.org>" [undefined]
# 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: A0F6 6548 F048 95EB FE6B 0B60 51A3 43C7 CFFB ECA1
* remotes/legoater/tags/pull-aspeed-20210503:
aspeed: Add support for the quanta-q7l1-bmc board
hw/block: m25p80: Add support for mt25ql02g and mt25qu02g
aspeed: Add support for the rainier-bmc board
aspeed: Deprecate the swift-bmc machine
tests/qtest: Rename m25p80 test in aspeed_smc test
aspeed/smc: Add extra controls to request DMA
aspeed/smc: Add a 'features' attribute to the object class
hw/misc/aspeed_xdma: Add AST2600 support
tests/acceptance: Test ast2600 machine
tests/acceptance: Test ast2400 and ast2500 machines
tests/qtest: Add test for Aspeed HACE
aspeed: Integrate HACE
hw: Model ASPEED's Hash and Crypto Engine
hw/arm/aspeed: Do not sysbus-map mmio flash region directly, use alias
aspeed/i2c: Rename DMA address space
aspeed/i2c: Fix DMA address mask
aspeed/smc: Remove unused "sdram-base" property
aspeed/smc: Use the RAM memory region for DMAs
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If we use the system Meson but it is too old, the subsequent "meson configure"
will fail. Always use the submodule when building with CFI.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Usually Meson uses pre-serialized information in meson-private to
speed up re-runs. This is not possible for version changes, where
Meson instead rebuilds the serialized information using cmd_line.txt.
In some cases cmd_line.txt can contain stale information, since it
is not rebuild except when "meson setup" is invoked. Update it in
the configure script to allow upgrading our Meson version.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Replace Windows specific macro with a more generic feature detection
macro. Allows slirp smb feature to be disabled manually as well.
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Joelle van Dyne <j@getutm.app>
Message-Id: <20210315180341.31638-5-j@getutm.app>
[Use $default_feature as the default. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Right now, rate limiting is protected by the AioContext mutex, which is
taken for example both by the block jobs and by qmp_block_job_set_speed
(via find_block_job).
We would like to remove the dependency of block layer code on the
AioContext mutex, since most drivers and the core I/O code are already
not relying on it. However, there is no existing lock that can easily
be taken by both ratelimit_set_speed and ratelimit_calculate_delay,
especially because the latter might run in coroutine context (and
therefore under a CoMutex) but the former will not.
Since concurrent calls to ratelimit_calculate_delay are not possible,
one idea could be to use a seqlock to get a snapshot of slice_ns and
slice_quota. But for now keep it simple, and just add a mutex to the
RateLimit struct; block jobs are generally not performance critical to
the point of optimizing the clock cycles spent in synchronization.
This also requires the introduction of init/destroy functions, so
add them to the two users of ratelimit.h.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
On Windows with glib <2.50, g_poll is redefined to use the variant
defined in util/oslib-win32.c. Use the same name in the declaration
and definition for ease of grepping.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
A number of small cleanups to get started. All the checkpatch.pl warnings for
bsdload.c have been fixed, as well as a warning from qemu.h (though more remain
and this patch series fails the format check still). I've also fixed a
compile-time warning about a missing break.
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Merge remote-tracking branch 'remotes/bsdimp/tags/pull-bsd-user-20210430' into staging
bsd-user: start to cleanup the mess
A number of small cleanups to get started. All the checkpatch.pl warnings for
bsdload.c have been fixed, as well as a warning from qemu.h (though more remain
and this patch series fails the format check still). I've also fixed a
compile-time warning about a missing break.
# gpg: Signature made Fri 30 Apr 2021 16:40:08 BST
# gpg: using RSA key 2035F894B00AA3CF7CCDE1B76C1CD1287DB01100
# gpg: Good signature from "Warner Losh <wlosh@netflix.com>" [unknown]
# gpg: aka "Warner Losh <imp@bsdimp.com>" [unknown]
# gpg: aka "Warner Losh <imp@freebsd.org>" [unknown]
# gpg: aka "Warner Losh <imp@village.org>" [unknown]
# gpg: aka "Warner Losh <wlosh@bsdimp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 2035 F894 B00A A3CF 7CCD E1B7 6C1C D128 7DB0 1100
* remotes/bsdimp/tags/pull-bsd-user-20210430:
bsd-user: style tweak: Put {} around all if/else/for statements
bsd-user: put back a break; that had gone missing...
bsd-user: style tweak: return is not a function, eliminate ()
bsd-user: style tweak: keyword space (
bsd-user: whitespace changes
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
