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qemu/hw/arm
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Emilio G. Cota 7264961934 hw: add .min_cpus and .default_cpus fields to machine_class 
max_cpus needs to be an upper bound on the number of vCPUs
initialized; otherwise TCG region initialization breaks.

Some boards initialize a hard-coded number of vCPUs, which is not
captured by the global max_cpus and therefore breaks TCG initialization.
Fix it by adding the .min_cpus field to machine_class.

This commit also changes some user-facing behaviour: we now die if
-smp is below this hard-coded vCPU minimum instead of silently
ignoring the passed -smp value (sometimes announcing this by printing
a warning). However, the introduction of .default_cpus lessens the
likelihood that users will notice this: if -smp isn't set, we now
assign the value in .default_cpus to both smp_cpus and max_cpus. IOW,
if a user does not set -smp, they always get a correct number of vCPUs.

This change fixes 3468b59 ("tcg: enable multiple TCG contexts in
softmmu", 2017-10-24), which broke TCG initialization for some
ARM boards.

Fixes: 3468b59e18
Reported-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-id: 1510343626-25861-6-git-send-email-cota@braap.org
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-13 13:55:27 +00:00
..
allwinner-a10.c hw/arm/allwinner-a10: Mark the allwinner-a10 device with user_creatable = false 2017-09-07 13:54:51 +01:00
armv7m.c memory: Get rid of address_space_init_shareable 2017-09-22 01:06:51 +02:00
aspeed_soc.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
aspeed.c hw/arm: Set ignore_memory_transaction_failures for most ARM boards 2017-09-07 13:54:54 +01:00
bcm2835_peripherals.c bcm2835_fb: use {get, set}_uint() for "vcram-size" and "vcram-base" 2017-06-20 14:31:32 +02:00
bcm2836.c arm: remove remaining cannot_destroy_with_object_finalize_yet 2017-04-20 17:51:32 +02:00
boot.c hw/arm/boot: take Linux/arm64 TEXT_OFFSET header field into account 2017-04-20 17:39:17 +01:00
collie.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
cubieboard.c hw/arm: Set ignore_memory_transaction_failures for most ARM boards 2017-09-07 13:54:54 +01:00
digic_boards.c hw/arm: Set ignore_memory_transaction_failures for most ARM boards 2017-09-07 13:54:54 +01:00
digic.c hw/arm/digic: Mark device with user_creatable = false 2017-09-04 17:13:53 +01:00
exynos4_boards.c hw: add .min_cpus and .default_cpus fields to machine_class 2017-11-13 13:55:27 +00:00
exynos4210.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
fsl-imx6.c hw/arm: Mark the "fsl,imx6" device with user_creatable = false 2017-11-07 13:03:51 +00:00
fsl-imx25.c hw/arm: Mark the "fsl,imx25" device with user_creatable = false 2017-11-07 13:03:51 +00:00
fsl-imx31.c hw/arm: Mark the "fsl,imx31" device with user_creatable = false 2017-11-07 13:03:51 +00:00
gumstix.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
highbank.c highbank: validate register offset before access 2017-11-13 13:55:24 +00:00
imx25_pdk.c hw/arm: Set ignore_memory_transaction_failures for most ARM boards 2017-09-07 13:54:54 +01:00
integratorcp.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
kzm.c hw/arm: Set ignore_memory_transaction_failures for most ARM boards 2017-09-07 13:54:54 +01:00
mainstone.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
Makefile.objs msf2: Add Emcraft's Smartfusion2 SOM kit 2017-09-21 16:36:56 +01:00
mps2.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
msf2-soc.c msf2: Wire up SYSRESETREQ in SoC for system reset 2017-10-31 11:50:52 +00:00
msf2-som.c msf2: Add Emcraft's Smartfusion2 SOM kit 2017-09-21 16:36:56 +01:00
musicpal.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
netduino2.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
nseries.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
omap1.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
omap2.c hw/arm/omap2.c: Don't use old_mmio 2017-09-21 16:34:27 +01:00
omap_sx1.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
palm.c hw/arm/palm.c: Don't use old_mmio for static_ops 2017-09-21 16:34:27 +01:00
pxa2xx_gpio.c hw/arm: QOM'ify pxa2xx_gpio.c 2016-10-24 16:26:55 +01:00
pxa2xx_pic.c hw/arm: QOM'ify pxa2xx_pic.c 2016-05-12 13:42:08 +01:00
pxa2xx.c migration: pre_save return int 2017-09-27 11:35:59 +01:00
raspi.c hw: add .min_cpus and .default_cpus fields to machine_class 2017-11-13 13:55:27 +00:00
realview.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
sabrelite.c hw/arm: Set ignore_memory_transaction_failures for most ARM boards 2017-09-07 13:54:54 +01:00
spitz.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
stellaris.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
stm32f205_soc.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
strongarm.c migration: pre_save return int 2017-09-27 11:35:59 +01:00
strongarm.h Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
sysbus-fdt.c sysbus: Remove ignored return value of FindSysbusDeviceFunc 2016-09-27 17:03:34 -03:00
tosa.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
trace-events docs: fix broken paths to docs/devel/tracing.txt 2017-07-31 13:12:53 +03:00
versatilepb.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
vexpress.c Machine/CPU/NUMA queue, 2017-09-19 2017-09-20 17:35:36 +01:00
virt-acpi-build.c numa: make sure that all cpus have has_node_id set if numa is enabled 2017-06-05 14:59:08 -03:00
virt.c numa: cpu: calculate/set default node-ids after all -numa CLI options are parsed 2017-09-19 16:51:33 -03:00
xilinx_zynq.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
xlnx-zcu102.c hw: add .min_cpus and .default_cpus fields to machine_class 2017-11-13 13:55:27 +00:00
xlnx-zynqmp.c xlnx-zynqmp: Properly support the smp command line option 2017-11-13 13:55:26 +00:00
z2.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00