mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
2e4a0b1766
qemu/hw/arm
History
Peter Maydell 846690dee8 virt: Suppress external aborts on virt-2.10 and earlier 
In commit c79c0a314c we enabled emulation of external aborts
when the guest attempts to access a physical address with no
mapped device. In commit 4672cbd7be we suppress this for
most legacy boards to prevent breakage of previously working
guests, but we didn't suppress it in the 'virt' board, with
the rationale "we know that guests won't try to prod devices
that we don't describe in the device tree or ACPI tables". This
is mostly true, but we've had a report of a Linux guest image
that this did break. The problem seems to be that the guest
is (incorrectly) configured with a DEBUG_UART_PHYS value that
tells it there is a uart at 0x10009000 (which is true for
vexpress but not for virt), so in early bootup the kernel
probes this bogus address.

This is a misconfigured guest, so we don't need to worry
about it too much, but we can arrange that guests that ran
on QEMU v2.10 (before c79c0a314c) will still run on
the "virt-2.10" board model, by suppressing external aborts
only for that version and earlier. This seems a reasonable
compromise: "virt-2.10" is supposed to behave the same way
that "virt" did in the 2.10 release, and making it do that
provides a usable workaround for guests with bugs like this.

Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180925144127.31965-1-peter.maydell@linaro.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2018-10-08 14:55:02 +01:00
..
allwinner-a10.c hw/arm/allwinner-a10: Fix introspection problem with 'allwinner-a10' 2018-07-17 13:12:49 +01:00
armv7m.c nvic: Expose NMI line 2018-08-20 11:24:33 +01:00
aspeed_soc.c aspeed: add a max_ram_size property to the memory controller 2018-08-16 14:29:58 +01:00
aspeed.c hw/arm/aspeed: Add an Aspeed machine class 2018-09-25 15:13:24 +01:00
bcm2835_peripherals.c Change references to serial_hds[] to serial_hd() 2018-04-26 13:57:00 +01:00
bcm2836.c hw/arm/bcm2836: Fix crash with device_add bcm2837 on unsupported machines 2018-07-17 13:12:49 +01:00
boot.c hw/arm/boot: AArch32 kernels should be started in Hyp mode if available 2018-08-24 13:17:39 +01:00
collie.c hw: Do not include "sysemu/block-backend.h" if it is not necessary 2018-06-01 14:15:10 +02:00
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 Change references to serial_hds[] to serial_hd() 2018-04-26 13:57:00 +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 hw/arm/exynos4210: fix Exynos4210 UART support 2018-09-25 14:14:07 +01:00
fsl-imx6.c hw/arm/fsl-imx6: Fix introspection problems with the "fsl, imx6" device 2018-07-17 13:12:49 +01:00
fsl-imx6ul.c hw/arm/fsl-imx6ul: Connect VIRQ and VFIQ 2018-08-24 13:17:33 +01:00
fsl-imx7.c hw/arm/fsl-imx6ul: Connect VIRQ and VFIQ 2018-08-24 13:17:34 +01:00
fsl-imx25.c hw/arm/fsl-imx25: Fix introspection problem with the "fsl, imx25" device 2018-07-17 13:12:49 +01:00
fsl-imx31.c hw/arm/fsl-imx31: Fix introspection problem with the "fsl, imx31" device 2018-07-17 13:12:49 +01:00
gumstix.c hw: Do not include "sysemu/block-backend.h" if it is not necessary 2018-06-01 14:15:10 +02:00
highbank.c hw/arm/highbank: Connect VIRQ and VFIQ 2018-08-24 13:17:33 +01:00
imx25_pdk.c hw/arm: Set ignore_memory_transaction_failures for most ARM boards 2017-09-07 13:54:54 +01:00
integratorcp.c Change references to serial_hds[] to serial_hd() 2018-04-26 13:57:00 +01:00
iotkit.c hw/arm/iotkit: Wire up the lines for MSCs 2018-08-24 13:17:44 +01:00
kzm.c Change references to serial_hds[] to serial_hd() 2018-04-26 13:57:00 +01:00
mainstone.c hw: Do not include "sysemu/block-backend.h" if it is not necessary 2018-06-01 14:15:10 +02:00
Makefile.objs arm: Add BBC micro:bit machine 2018-09-25 14:14:07 +01:00
mcimx6ul-evk.c i.MX6UL: Add Freescale i.MX6 UltraLite 14x14 EVK Board 2018-08-16 14:05:28 +01:00
mcimx7d-sabre.c i.mx7d: Remove unused header files 2018-06-29 15:11:16 +01:00
microbit.c arm: Add BBC micro:bit machine 2018-09-25 14:14:07 +01:00
mps2-tz.c hw/arm/mps2-tz: Fix MPS2 SCC config register values 2018-08-24 13:17:47 +01:00
mps2.c hw/arm/mps2: Fix ID register errors on AN511 and AN385 2018-08-24 13:17:50 +01:00
msf2-soc.c hw/arm: make bitbanded IO optional on ARMv7-M 2018-08-16 14:05:28 +01:00
msf2-som.c hw: Directly use "qemu/units.h" instead of "qemu/cutils.h" 2018-07-02 15:41:12 +02:00
musicpal.c Change references to serial_hds[] to serial_hd() 2018-04-26 13:57:00 +01:00
netduino2.c arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly 2017-09-19 09:09:32 -03:00
nrf51_soc.c arm: Add Nordic Semiconductor nRF51 SoC 2018-09-25 14:14:07 +01:00
nseries.c hw: Do not include "sysemu/block-backend.h" if it is not necessary 2018-06-01 14:15:10 +02:00
omap1.c hw/arm/omap1: Use qemu_log_mask(GUEST_ERROR) instead of fprintf 2018-06-26 17:50:40 +01:00
omap2.c hw: Do not include "sysemu/blockdev.h" if it is not necessary 2018-06-01 14:15:10 +02:00
omap_sx1.c hw: Do not include "sysemu/block-backend.h" if it is not necessary 2018-06-01 14:15:10 +02:00
palm.c Replace all occurances of __FUNCTION__ with __func__ 2018-01-22 09:46:18 +01:00
pxa2xx_gpio.c Replace all occurances of __FUNCTION__ with __func__ 2018-01-22 09:46:18 +01:00
pxa2xx_pic.c Replace all occurances of __FUNCTION__ with __func__ 2018-01-22 09:46:18 +01:00
pxa2xx.c fix "Missing break in switch" coverity reports 2018-08-23 13:32:50 +02:00
raspi.c hw/arm/raspi: Don't bother setting default_cpu_type 2018-04-26 11:04:39 +01:00
realview.c scsi: move lsi53c8xx_create() callers to lsi53c8xx_handle_legacy_cmdline() 2018-09-25 11:12:25 +10:00
sabrelite.c hw/arm: Set ignore_memory_transaction_failures for most ARM boards 2017-09-07 13:54:54 +01:00
smmu-common.c hw/arm/smmu-common: Fix the name of the iommu memory regions 2018-09-25 14:14:07 +01:00
smmu-internal.h hw/arm/smmu-common: VMSAv8-64 page table walk 2018-05-04 18:05:51 +01:00
smmuv3-internal.h hw/arm/smmuv3: fix eventq recording and IRQ triggerring 2018-09-25 15:13:24 +01:00
smmuv3.c hw/arm/smmuv3: fix eventq recording and IRQ triggerring 2018-09-25 15:13:24 +01:00
spitz.c hw/arm/spitz: Move problematic nand_init() code to realize function 2018-07-23 15:21:26 +01:00
stellaris.c hw/arm: make bitbanded IO optional on ARMv7-M 2018-08-16 14:05:28 +01:00
stm32f205_soc.c hw/arm: make bitbanded IO optional on ARMv7-M 2018-08-16 14:05:28 +01:00
strongarm.c Change references to serial_hds[] to serial_hd() 2018-04-26 13:57:00 +01:00
strongarm.h Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
sysbus-fdt.c hw/arm/sysbus-fdt: Fix assertion in copy_properties_from_host() 2018-07-30 14:47:32 +01:00
tosa.c hw: Do not include "sysemu/block-backend.h" if it is not necessary 2018-03-12 16:12:46 +01:00
trace-events hw/arm/smmuv3: Add notifications on invalidation 2018-06-26 17:50:42 +01:00
versatilepb.c scsi: move lsi53c8xx_create() callers to lsi53c8xx_handle_legacy_cmdline() 2018-09-25 11:12:25 +10:00
vexpress.c hw/arm/vexpress: Add "virtualization" property controlling presence of EL2 2018-08-24 13:17:35 +01:00
virt-acpi-build.c hw/arm/virt-acpi-build: Add a check for memory-less NUMA nodes 2018-09-25 14:14:07 +01:00
virt.c virt: Suppress external aborts on virt-2.10 and earlier 2018-10-08 14:55:02 +01:00
xilinx_zynq.c hw: Do not include "sysemu/block-backend.h" if it is not necessary 2018-06-01 14:15:10 +02:00
xlnx-zcu102.c xlnx-zynqmp: Swap Cortex-R5 for Cortex-R5F 2018-06-22 13:28:38 +01:00
xlnx-zynqmp.c xlnx-zynqmp: Improve GIC wiring and MMIO mapping 2018-08-14 17:17:21 +01:00
z2.c hw: Do not include "sysemu/block-backend.h" if it is not necessary 2018-06-01 14:15:10 +02:00