Commit Graph

114672 Commits

Author SHA1 Message Date
Philippe Mathieu-Daudé
ddd1731385 semihosting: Restrict to TCG
Semihosting currently uses the TCG probe_access API.
It is pointless to have it in the binary when TCG isn't.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240717105723.58965-9-philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240718094523.1198645-16-alex.bennee@linaro.org>
2024-07-22 09:38:16 +01:00
Philippe Mathieu-Daudé
41b37a178b target/xtensa: Restrict semihosting to TCG
The semihosting feature depends on TCG (due to the probe_access
API access). Although TCG is the single accelerator currently
available for the xtensa target, use the Kconfig "imply" directive
which is more correct (if we were to support a different accel).

Reported-by: Anton Johansson <anjo@rev.ng>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240717105723.58965-8-philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240718094523.1198645-15-alex.bennee@linaro.org>
2024-07-22 09:38:14 +01:00
Philippe Mathieu-Daudé
10425887ba target/riscv: Restrict semihosting to TCG
Semihosting currently uses the TCG probe_access API. To prepare for
encoding the TCG dependency in Kconfig, do not enable it unless TCG
is available.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20240717105723.58965-7-philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240718094523.1198645-14-alex.bennee@linaro.org>
2024-07-22 09:38:11 +01:00
Philippe Mathieu-Daudé
75cdcc7a2c target/mips: Restrict semihosting to TCG
Semihosting currently uses the TCG probe_access API. To prepare for
encoding the TCG dependency in Kconfig, do not enable it unless TCG
is available.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20240717105723.58965-6-philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240718094523.1198645-13-alex.bennee@linaro.org>
2024-07-22 09:38:10 +01:00
Philippe Mathieu-Daudé
099505b375 target/m68k: Restrict semihosting to TCG
The semihosting feature depends on TCG (due to the probe_access
API access). Although TCG is the single accelerator currently
available for the m68k target, use the Kconfig "imply" directive
which is more correct (if we were to support a different accel).

Reported-by: Anton Johansson <anjo@rev.ng>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240717105723.58965-5-philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240718094523.1198645-12-alex.bennee@linaro.org>
2024-07-22 09:38:08 +01:00
Philippe Mathieu-Daudé
fca2ffcb0b target/mips: Add semihosting stub
Since the SEMIHOSTING feature is optional, we need
a stub to link when it is disabled.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240717105723.58965-4-philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240718094523.1198645-11-alex.bennee@linaro.org>
2024-07-22 09:38:06 +01:00
Philippe Mathieu-Daudé
bf9ab9d131 target/m68k: Add semihosting stub
Since the SEMIHOSTING feature is optional, we need
a stub to link when it is disabled.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240717105723.58965-3-philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240718094523.1198645-10-alex.bennee@linaro.org>
2024-07-22 09:38:03 +01:00
Philippe Mathieu-Daudé
f961773ce1 semihosting: Include missing 'gdbstub/syscalls.h' header
"semihosting/syscalls.h" requires definitions from
"gdbstub/syscalls.h", include it in order to avoid:

  include/semihosting/syscalls.h:23:38: error: unknown type name 'gdb_syscall_complete_cb'
  void semihost_sys_open(CPUState *cs, gdb_syscall_complete_cb complete,
                                       ^

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240717105723.58965-2-philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240718094523.1198645-9-alex.bennee@linaro.org>
2024-07-22 09:38:01 +01:00
Frédéric Pétrot
8d073d48b7 plugins/execlog.c: correct dump of registers values
Register values are dumped as 'sz' chunks of two nibbles in the execlog
plugin, sz was 1 too big.

Signed-off-by: Frédéric Pétrot <frederic.petrot@univ-grenoble-alpes.fr>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20240620083805.73603-1-frederic.petrot@univ-grenoble-alpes.fr>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240718094523.1198645-8-alex.bennee@linaro.org>
2024-07-22 09:38:01 +01:00
Alex Bennée
2d4f2c8cde tests/plugins: use qemu_plugin_outs for inline stats
Using bare printf's in plugins is perfectly acceptable but they do
rather mess up the output of "make check-tcg". Convert the printfs to
use g_string and then output with the plugin output helper which will
already be captured to .pout files by the test harness.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240718094523.1198645-7-alex.bennee@linaro.org>
2024-07-22 09:38:01 +01:00
Pierrick Bouvier
94ae227e15 plugins: fix mem callback array size
data was correctly copied, but size of array was not set
(g_array_sized_new only reserves memory, but does not set size).

As a result, callbacks were not called for code path relying on
plugin_register_vcpu_mem_cb().

Found when trying to trigger mem access callbacks for atomic
instructions.

Reviewed-by: Xingtao Yao <yaoxt.fnst@fujitsu.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240706191335.878142-2-pierrick.bouvier@linaro.org>
Message-Id: <20240718094523.1198645-6-alex.bennee@linaro.org>
2024-07-22 09:37:56 +01:00
Simon Hamelin
58fc249d9e plugins/stoptrigger: TCG plugin to stop execution under conditions
This new plugin allows to stop emulation using conditions on the
emulation state. By setting this plugin arguments, it is possible
to set an instruction count limit and/or trigger address(es) to stop at.
The code returned at emulation exit can be customized.

This plugin demonstrates how someone could stop QEMU execution.
It could be used for research purposes to launch some code and
deterministically stop it and understand where its execution flow went.

Co-authored-by: Alexandre Iooss <erdnaxe@crans.org>
Signed-off-by: Simon Hamelin <simon.hamelin@grenoble-inp.org>
Signed-off-by: Alexandre Iooss <erdnaxe@crans.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20240715081521.19122-2-simon.hamelin@grenoble-inp.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240718094523.1198645-5-alex.bennee@linaro.org>
2024-07-22 09:37:56 +01:00
Alex Bennée
e8122a7118 gdbstub: Re-factor gdb command extensions
Coverity reported a memory leak (CID 1549757) in this code and its
admittedly rather clumsy handling of extending the command table.
Instead of handing over a full array of the commands lets use the
lighter weight GPtrArray and simply test for the presence of each
entry as we go. This avoids complications of transferring ownership of
arrays and keeps the final command entries as static entries in the
target code.

Cc: Akihiko Odaki <akihiko.odaki@daynix.com>
Cc: Gustavo Bueno Romero <gustavo.romero@linaro.org>
Cc: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Gustavo Romero <gustavo.romero@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240718094523.1198645-4-alex.bennee@linaro.org>
2024-07-22 09:37:44 +01:00
Thomas Huth
955ad1121d tests/avocado: Remove non-working sparc leon3 test
The test has been marked as broken more than 4 years ago, and
so far nobody ever cared to fix it. Thus let's simply remove it
now ... if somebody ever needs it again, they can restore the
file from an older version of QEMU.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Clément Chigot <chigot@adacore.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240710111755.60584-1-thuth@redhat.com>
[AJB: fix MAINTAINERS]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240718094523.1198645-3-alex.bennee@linaro.org>
2024-07-22 09:06:17 +01:00
Alex Bennée
d84ed5d2d4 testing: bump to latest libvirt-ci
This brings in the latest python mappings for the BSD updates.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240718094523.1198645-2-alex.bennee@linaro.org>
2024-07-22 09:06:17 +01:00
Richard Henderson
a7ddb48bd1 aspeed queue:
* SMC model fix (Coverity)
 * AST2600 boot for eMMC support and test
 * AST2700 ADC model
 * I2C model changes preparing AST2700 I2C support
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Merge tag 'pull-aspeed-20240721' of https://github.com/legoater/qemu into staging

aspeed queue:

* SMC model fix (Coverity)
* AST2600 boot for eMMC support and test
* AST2700 ADC model
* I2C model changes preparing AST2700 I2C support

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# gpg: WARNING: This key is not certified with a trusted signature!
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# Primary key fingerprint: A0F6 6548 F048 95EB FE6B  0B60 51A3 43C7 CFFB ECA1

* tag 'pull-aspeed-20240721' of https://github.com/legoater/qemu:
  aspeed: fix coding style
  hw/i2c/aspeed: rename the I2C class pool attribute to share_pool
  hw/i2c/aspeed: support to set the different memory size
  aspeed/soc: support ADC for AST2700
  aspeed/adc: Add AST2700 support
  tests/avocado/machine_aspeed.py: Add eMMC boot tests
  aspeed: Introduce a 'boot-emmc' machine option
  aspeed: Introduce a 'hw_strap1' machine attribute
  aspeed: Add boot-from-eMMC HW strapping bit to rainier-bmc machine
  aspeed: Tune eMMC device properties to reflect HW strapping
  aspeed: Introduce a AspeedSoCClass 'boot_from_emmc' handler
  aspeed/scu: Add boot-from-eMMC HW strapping bit for AST2600 SoC
  aspeed: Load eMMC first boot area as a boot rom
  aspeed: Change type of eMMC device
  aspeed/smc: Fix possible integer overflow

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-07-22 07:52:05 +10:00
Jamin Lin
4db1c16441 aspeed: fix coding style
Fix coding style issues from checkpatch.pl

Test command:
./scripts/checkpatch.pl --no-tree -f hw/arm/aspeed.c

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
2024-07-21 07:46:38 +02:00
Jamin Lin
5d337540c4 hw/i2c/aspeed: rename the I2C class pool attribute to share_pool
According to the datasheet of ASPEED SOCs,
each I2C bus has their own pool buffer since AST2500.

Only AST2400 utilized a pool buffer share to all I2C bus.
And firmware required to set the offset of pool buffer
by writing "Function Control Register(I2CD 00)"

To make this model more readable, will change to introduce
a new bus pool buffer attribute in AspeedI2Cbus.
So, it does not need to calculate the pool buffer offset
for different I2C bus.

This patch rename the I2C class pool attribute to share_pool.
It make user more understand share pool and bus pool
are different.

Incrementing the version of aspeed_i2c_vmstate to 3.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
2024-07-21 07:46:38 +02:00
Jamin Lin
f2202be278 hw/i2c/aspeed: support to set the different memory size
According to the datasheet of ASPEED SOCs,
an I2C controller owns 8KB of register space for AST2700,
owns 4KB of register space for AST2600, AST2500 and AST2400,
and owns 64KB of register space for AST1030.

It set the memory region size 4KB by default and it does not compatible
register space for AST2700.

Introduce a new class attribute to set the I2C controller memory size
for different ASPEED SOCs.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
2024-07-21 07:46:38 +02:00
Jamin Lin
11bea810f7 aspeed/soc: support ADC for AST2700
Add ADC model for AST2700 ADC support.
The ADC controller registers base address is start at
0x14C0_0000 and its address space is 0x1000.
The ADC controller interrupt is connected to
GICINT130_INTC group at bit 16. The GIC IRQ is 130.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
2024-07-21 07:46:38 +02:00
Jamin Lin
13b5ae94ed aspeed/adc: Add AST2700 support
AST2700 and AST2600 ADC controllers are identical.
Introduce ast2700 class and set 2 engines.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
2024-07-21 07:46:38 +02:00
Cédric Le Goater
a82e7e9eca tests/avocado/machine_aspeed.py: Add eMMC boot tests
The image was built using the process described in commit c8cb19876d
("hw/sd/sdcard: Support boot area in emmc image") with artefacts from
the latest successful build of the IBM P10 BMC platform available on:

  https://jenkins.openbmc.org/job/ci-openbmc/distro=ubuntu,label=docker-builder,target=p10bmc/lastSuccessfulBuild/

Signed-off-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-07-21 07:46:38 +02:00
Cédric Le Goater
056b779eaf aspeed: Introduce a 'boot-emmc' machine option
The default behavior of some Aspeed machines is to boot from the eMMC
device, like the rainier-bmc. Others like ast2600-evb could also boot
from eMMC if the HW strapping boot-from-eMMC bit was set. Add a
property to set or unset this bit. This is useful to test boot images.

For now, only activate this property on the ast2600-evb and rainier-bmc
machines for which eMMC images are available or can be built.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-07-21 07:46:38 +02:00
Cédric Le Goater
621845a9e3 aspeed: Introduce a 'hw_strap1' machine attribute
To change default behavior of a machine and boot from eMMC, future
changes will add a machine option to let the user configure the
boot-from-eMMC HW strapping bit. Add a new machine attribute first.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-07-21 07:46:38 +02:00
Cédric Le Goater
01ea09eb7a aspeed: Add boot-from-eMMC HW strapping bit to rainier-bmc machine
This value is taken from a running Rainier machine.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-07-21 07:46:38 +02:00
Cédric Le Goater
e554e45b44 aspeed: Tune eMMC device properties to reflect HW strapping
When the boot-from-eMMC HW strapping bit is set, use the 'boot-config'
property to set the boot config register to boot from the first boot
area partition of the eMMC device. Also set the boot partition size
of the device.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-07-21 07:46:38 +02:00
Cédric Le Goater
eea55625df aspeed: Introduce a AspeedSoCClass 'boot_from_emmc' handler
Report support on the AST2600 SoC if the boot-from-eMMC HW strapping
bit is set at the board level. AST2700 also has support but it is not
yet ready in QEMU and others SoCs do not have support, so return false
always for these.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-07-21 07:46:38 +02:00
Cédric Le Goater
cc8bae6f62 aspeed/scu: Add boot-from-eMMC HW strapping bit for AST2600 SoC
Bit SCU500[2] of the AST2600 controls the boot device of the SoC.

Future changes will configure this bit to boot from eMMC disk images
specially built for this purpose.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-07-21 07:46:38 +02:00
Cédric Le Goater
255aed8134 aspeed: Load eMMC first boot area as a boot rom
The first boot area partition (64K) of the eMMC device should contain
an initial boot loader (u-boot SPL). Load it as a ROM only if an eMMC
device is available to boot from but no flash device is.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-07-21 07:46:38 +02:00
Cédric Le Goater
dddfc771e0 aspeed: Change type of eMMC device
The QEMU device model representing the eMMC device of the machine is
currently created with type SD_CARD. Change the type to EMMC now that
it is available.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-07-21 07:46:38 +02:00
Cédric Le Goater
13951ccfcd aspeed/smc: Fix possible integer overflow
Coverity reports a possible integer overflow because routine
aspeeed_smc_hclk_divisor() has a codepath returning 0, which could
lead to an integer overflow when computing variable 'hclk_shift' in
the caller aspeed_smc_dma_calibration().

The value passed to aspeed_smc_hclk_divisor() is always between 0 and
15 and, in this case, there is always a matching hclk divisor. Remove
the return 0 and use g_assert_not_reached() instead.

Fixes: Coverity CID 1547822
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-21 07:46:38 +02:00
Richard Henderson
a87a7c449e pull-loongarch-20240719
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Merge tag 'pull-loongarch-20240719' of https://gitlab.com/gaosong/qemu into staging

pull-loongarch-20240719

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* tag 'pull-loongarch-20240719' of https://gitlab.com/gaosong/qemu:
  hw/loongarch: Modify flash block size to 256K
  hw/loongarch: Remove unimplemented extioi INT_encode mode
  target/loongarch/gdbstub: Add vector registers support

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-07-19 16:28:28 +10:00
Xianglai Li
3ed016f525 hw/loongarch: Modify flash block size to 256K
loongarch added a common library for edk2 to
parse flash base addresses through fdt.
For compatibility with other architectures,
the flash block size in qemu is now changed to 256k.

Signed-off-by: Xianglai Li <lixianglai@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240624033319.999631-1-lixianglai@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-07-19 10:40:04 +08:00
Song Gao
a00c22e505 hw/loongarch: Remove unimplemented extioi INT_encode mode
Remove extioi INT_encode encode mode, because we don't emulate it.

Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20240718083254.748179-1-gaosong@loongson.cn>
2024-07-19 10:40:04 +08:00
Song Gao
1c15dd632b target/loongarch/gdbstub: Add vector registers support
GDB already support LoongArch vector extension[1], QEMU gdb adds
LoongArch vector registers support, so that users can use 'info all-registers'
to get all vector registers values.

[1]: https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=1e9569f383a3d5a88ee07d0c2401bd95613c222e

Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewd-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20240711024454.3075183-1-gaosong@loongson.cn>
2024-07-19 10:40:04 +08:00
Richard Henderson
23fa74974d target-arm queue:
* Fix handling of LDAPR/STLR with negative offset
  * LDAPR should honour SCTLR_ELx.nAA
  * Use float_status copy in sme_fmopa_s
  * hw/display/bcm2835_fb: fix fb_use_offsets condition
  * hw/arm/smmuv3: Support and advertise nesting
  * Use FPST_F16 for SME FMOPA (widening)
  * tests/arm-cpu-features: Do not assume PMU availability
  * hvf: arm: Do not advance PC when raising an exception
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Merge tag 'pull-target-arm-20240718' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * Fix handling of LDAPR/STLR with negative offset
 * LDAPR should honour SCTLR_ELx.nAA
 * Use float_status copy in sme_fmopa_s
 * hw/display/bcm2835_fb: fix fb_use_offsets condition
 * hw/arm/smmuv3: Support and advertise nesting
 * Use FPST_F16 for SME FMOPA (widening)
 * tests/arm-cpu-features: Do not assume PMU availability
 * hvf: arm: Do not advance PC when raising an exception

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# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
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* tag 'pull-target-arm-20240718' of https://git.linaro.org/people/pmaydell/qemu-arm: (26 commits)
  hvf: arm: Do not advance PC when raising an exception
  tests/arm-cpu-features: Do not assume PMU availability
  tests/tcg/aarch64: Add test cases for SME FMOPA (widening)
  target/arm: Use FPST_F16 for SME FMOPA (widening)
  target/arm: Use float_status copy in sme_fmopa_s
  hw/arm/smmu: Refactor SMMU OAS
  hw/arm/smmuv3: Support and advertise nesting
  hw/arm/smmuv3: Handle translation faults according to SMMUPTWEventInfo
  hw/arm/smmuv3: Support nested SMMUs in smmuv3_notify_iova()
  hw/arm/smmu: Support nesting in the rest of commands
  hw/arm/smmu: Introduce smmu_iotlb_inv_asid_vmid
  hw/arm/smmu: Support nesting in smmuv3_range_inval()
  hw/arm/smmu-common: Support nested translation
  hw/arm/smmu-common: Add support for nested TLB
  hw/arm/smmu-common: Rework TLB lookup for nesting
  hw/arm/smmuv3: Translate CD and TT using stage-2 table
  hw/arm/smmu: Introduce CACHED_ENTRY_TO_ADDR
  hw/arm/smmu: Consolidate ASID and VMID types
  hw/arm/smmu: Split smmuv3_translate()
  hw/arm/smmu: Use enum for SMMU stage
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-07-19 07:02:17 +10:00
Akihiko Odaki
30a1690f24 hvf: arm: Do not advance PC when raising an exception
hvf did not advance PC when raising an exception for most unhandled
system registers, but it mistakenly advanced PC when raising an
exception for GICv3 registers.

Cc: qemu-stable@nongnu.org
Fixes: a2260983c6 ("hvf: arm: Add support for GICv3")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-id: 20240716-pmu-v3-4-8c7c1858a227@daynix.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-18 13:49:30 +01:00
Akihiko Odaki
71328d8289 tests/arm-cpu-features: Do not assume PMU availability
Asahi Linux supports KVM but lacks PMU support.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240716-pmu-v3-1-8c7c1858a227@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-18 13:49:30 +01:00
Daniyal Khan
f103ecccb6 tests/tcg/aarch64: Add test cases for SME FMOPA (widening)
Signed-off-by: Daniyal Khan <danikhan632@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20240717060149.204788-4-richard.henderson@linaro.org
Message-Id: 172090222034.13953.16888708708822922098-1@git.sr.ht
[rth: Split test from a larger patch, tidy assembly]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-18 13:49:30 +01:00
Richard Henderson
207d30b5fd target/arm: Use FPST_F16 for SME FMOPA (widening)
This operation has float16 inputs and thus must use
the FZ16 control not the FZ control.

Cc: qemu-stable@nongnu.org
Fixes: 3916841ac7 ("target/arm: Implement FMOPA, FMOPS (widening)")
Reported-by: Daniyal Khan <danikhan632@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20240717060149.204788-3-richard.henderson@linaro.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2374
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-18 13:49:30 +01:00
Daniyal Khan
31d93fedf4 target/arm: Use float_status copy in sme_fmopa_s
We made a copy above because the fp exception flags
are not propagated back to the FPST register, but
then failed to use the copy.

Cc: qemu-stable@nongnu.org
Fixes: 558e956c71 ("target/arm: Implement FMOPA, FMOPS (non-widening)")
Signed-off-by: Daniyal Khan <danikhan632@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20240717060149.204788-2-richard.henderson@linaro.org
[rth: Split from a larger patch]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-18 13:49:30 +01:00
Mostafa Saleh
6783a184bb hw/arm/smmu: Refactor SMMU OAS
SMMUv3 OAS is currently hardcoded in the code to 44 bits, for nested
configurations that can be a problem, as stage-2 might be shared with
the CPU which might have different PARANGE, and according to SMMU manual
ARM IHI 0070F.b:
    6.3.6 SMMU_IDR5, OAS must match the system physical address size.

This patch doesn't change the SMMU OAS, but refactors the code to
make it easier to do that:
- Rely everywhere on IDR5 for reading OAS instead of using the
  SMMU_IDR5_OAS macro, so, it is easier just to change IDR5 and
  it propagages correctly.
- Add additional checks when OAS is greater than 48bits.
- Remove unused functions/macros: pa_range/MAX_PA.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20240715084519.1189624-19-smostafa@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-18 13:49:30 +01:00
Mostafa Saleh
58377c3632 hw/arm/smmuv3: Support and advertise nesting
Everything is in place, consolidate parsing of STE cfg and setting
translation stage.

Advertise nesting if stage requested is "nested".

Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20240715084519.1189624-18-smostafa@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-18 13:49:30 +01:00
Mostafa Saleh
f913118593 hw/arm/smmuv3: Handle translation faults according to SMMUPTWEventInfo
Previously, to check if faults are enabled, it was sufficient to check
the current stage of translation and check the corresponding
record_faults flag.

However, with nesting, it is possible for stage-1 (nested) translation
to trigger a stage-2 fault, so we check SMMUPTWEventInfo as it would
have the correct stage set from the page table walk.

Signed-off-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20240715084519.1189624-17-smostafa@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-18 13:49:30 +01:00
Mostafa Saleh
4672772796 hw/arm/smmuv3: Support nested SMMUs in smmuv3_notify_iova()
IOMMUTLBEvent only understands IOVA, for stage-1 or stage-2
SMMU instances we consider the input address as the IOVA, but when
nesting is used, we can't mix stage-1 and stage-2 addresses, so for
nesting only stage-1 is considered the IOVA and would be notified.

Signed-off-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20240715084519.1189624-16-smostafa@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-18 13:49:30 +01:00
Mostafa Saleh
b8fa4c233b hw/arm/smmu: Support nesting in the rest of commands
Some commands need rework for nesting, as they used to assume S1
and S2 are mutually exclusive:

- CMD_TLBI_NH_ASID: Consider VMID if stage-2 is supported
- CMD_TLBI_NH_ALL: Consider VMID if stage-2 is supported, otherwise
  invalidate everything, this required a new vmid invalidation
  function for stage-1 only (ASID >= 0)

Also, rework trace events to reflect the new implementation.

Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20240715084519.1189624-15-smostafa@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-18 13:49:30 +01:00
Mostafa Saleh
eb41313c4b hw/arm/smmu: Introduce smmu_iotlb_inv_asid_vmid
Soon, Instead of doing TLB invalidation by ASID only, VMID will be
also required.
Add smmu_iotlb_inv_asid_vmid() which invalidates by both ASID and VMID.

However, at the moment this function is only used in SMMU_CMD_TLBI_NH_ASID
which is a stage-1 command, so passing VMID = -1 keeps the original
behaviour.

Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20240715084519.1189624-14-smostafa@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-18 13:49:30 +01:00
Mostafa Saleh
1ea8a6f59b hw/arm/smmu: Support nesting in smmuv3_range_inval()
With nesting, we would need to invalidate IPAs without
over-invalidating stage-1 IOVAs. This can be done by
distinguishing IPAs in the TLBs by having ASID=-1.
To achieve that, rework the invalidation for IPAs to have a
separate function, while for IOVA invalidation ASID=-1 means
invalidate for all ASIDs.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20240715084519.1189624-13-smostafa@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-18 13:49:29 +01:00
Mostafa Saleh
f42a0a57c0 hw/arm/smmu-common: Support nested translation
When nested translation is requested, do the following:
- Translate stage-1 table address IPA into PA through stage-2.
- Translate stage-1 table walk output (IPA) through stage-2.
- Create a single TLB entry from stage-1 and stage-2 translations
  using logic introduced before.

smmu_ptw() has a new argument SMMUState which include the TLB as
stage-1 table address can be cached in there.

Also in smmu_ptw(), a separate path used for nesting to simplify the
code, although some logic can be combined.

With nested translation class of translation fault can be different,
from the class of the translation, as faults from translating stage-1
tables are considered as CLASS_TT and not CLASS_IN, a new member
"is_ipa_descriptor" added to "SMMUPTWEventInfo" to differ faults
from walking stage 1 translation table and faults from translating
an IPA for a transaction.

Signed-off-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20240715084519.1189624-12-smostafa@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-18 13:49:29 +01:00
Mostafa Saleh
d7cdf89c27 hw/arm/smmu-common: Add support for nested TLB
This patch adds support for nested (combined) TLB entries.
The main function combine_tlb() is not used here but in the next
patches, but to simplify the patches it is introduced first.

Main changes:
1) New field added in the SMMUTLBEntry struct: parent_perm, for
   nested TLB, holds the stage-2 permission, this can be used to know
   the origin of a permission fault from a cached entry as caching
   the “and” of the permissions loses this information.

   SMMUPTWEventInfo is used to hold information about PTW faults so
   the event can be populated, the value of stage used to be set
   based on the current stage for TLB permission faults, however
   with the parent_perm, it is now set based on which perm has
   the missing permission

   When nesting is not enabled it has the same value as perm which
   doesn't change the logic.

2) As combined TLB implementation is used, the combination logic
   chooses:
   - tg and level from the entry which has the smallest addr_mask.
   - Based on that the iova that would be cached is recalculated.
   - Translated_addr is chosen from stage-2.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20240715084519.1189624-11-smostafa@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-18 13:49:29 +01:00