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qemu/include/hw/misc
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Daniel Bertalan f802ff1e28 hw/arm/bcm2835_property: Implement "get command line" message 
This query copies the kernel command line into the message buffer. It
was previously stubbed out to return empty, this commit makes it reflect
the arguments specified with `-append`.

I observed the following peculiarities on my Pi 3B+:
- If the buffer is shorter than the string, the response header gives
  the full length, but no data is actually copied.
- No NUL terminator is added: even if the buffer is long enough to fit
  one, the buffer's original contents are preserved past the string's
  end.
- The VC firmware adds the following extra parameters beside the
  user-supplied ones (via /boot/cmdline.txt): `video`, `vc_mem.mem_base`
  and `vc_mem.mem_size`. This is currently not implemented in qemu.

Signed-off-by: Daniel Bertalan <dani@danielbertalan.dev>
Message-id: 20230425103250.56653-1-dani@danielbertalan.dev
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: added comment about NUL and short-buffer behaviour]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-05-02 15:47:40 +01:00
..
macio input/adb: Only include header where needed 2023-02-06 11:41:39 +00:00
a9scu.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
allwinner-a10-ccm.h hw/misc: Allwinner-A10 Clock Controller Module Emulation 2023-01-12 16:50:19 +00:00
allwinner-a10-dramc.h hw/misc: Allwinner A10 DRAM Controller Emulation 2023-01-12 16:50:19 +00:00
allwinner-cpucfg.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
allwinner-h3-ccu.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
allwinner-h3-dramc.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
allwinner-h3-sysctrl.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
allwinner-sid.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
arm11scu.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
arm_integrator_debug.h arm: Update infocenter.arm.com URLs 2021-02-11 11:50:14 +00:00
armsse-cpu-pwrctrl.h hw/misc/sse-cpu-pwrctrl: Implement SSE-300 CPU<N>_PWRCTRL register block 2021-03-08 17:20:02 +00:00
armsse-cpuid.h hw/arm/mps2: Update old infocenter.arm.com URLs 2021-03-08 11:54:16 +00:00
armsse-mhu.h hw/arm/mps2: Update old infocenter.arm.com URLs 2021-03-08 11:54:16 +00:00
armv7m_ras.h arm: Move M-profile RAS register block into its own device 2021-09-01 11:08:18 +01:00
aspeed_hace.h Clean up decorations and whitespace around header guards 2022-05-11 16:50:32 +02:00
aspeed_i3c.h hw/misc/aspeed_i3c.c: Introduce a dummy AST2600 I3C model. 2022-01-20 11:47:53 +00:00
aspeed_lpc.h Don't include headers already included by qemu/osdep.h 2023-02-08 07:28:05 +01:00
aspeed_peci.h hw/misc/aspeed: Add PECI controller 2022-06-30 09:21:14 +02:00
aspeed_sbc.h aspeed: sbc: Allow per-machine settings 2022-07-14 16:24:38 +02:00
aspeed_scu.h aspeed/scu: Add AST1030 support 2022-05-02 17:03:03 +02:00
aspeed_sdmc.h Use OBJECT_DECLARE_TYPE when possible 2020-09-18 14:12:32 -04:00
aspeed_xdma.h hw/misc/aspeed_xdma: Add AST2600 support 2021-05-01 10:03:52 +02:00
auxbus.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
avr_power.h hw: Remove superfluous includes of hw/hw.h 2021-05-02 17:24:50 +02:00
bcm2835_cprman_internals.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
bcm2835_cprman.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
bcm2835_mbox_defs.h hw/arm/bcm283x: Correct the license text 2020-03-23 17:22:30 +00:00
bcm2835_mbox.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
bcm2835_mphi.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
bcm2835_powermgt.h hw/arm: Add basic power management to raspi. 2021-07-02 11:48:36 +01:00
bcm2835_property.h hw/arm/bcm2835_property: Implement "get command line" message 2023-05-02 15:47:40 +01:00
bcm2835_rng.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
bcm2835_thermal.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
cbus.h Include hw/irq.h a lot less 2019-08-16 13:31:52 +02:00
empty_slot.h hw/misc/empty_slot: Name the slots when created 2020-06-09 06:59:44 +02:00
grlib_ahb_apb_pnp.h hw: Replace anti-social QOM type names 2021-03-19 15:18:43 +01:00
imx6_ccm.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
imx6_src.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
imx6ul_ccm.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
imx7_ccm.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
imx7_gpr.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
imx7_snvs.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
imx25_ccm.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
imx31_ccm.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
imx_ccm.h Use OBJECT_DECLARE_TYPE when possible 2020-09-18 14:12:32 -04:00
imx_rngc.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
iotkit-secctl.h hw/misc/iotkit-secctl.c: Implement SSE-300 PID register values 2021-03-08 17:20:01 +00:00
iotkit-sysctl.h hw/misc/iotkit-sysctl: Handle SSE-300 changes to PDCM_PD_*_SENSE registers 2021-03-08 17:20:02 +00:00
iotkit-sysinfo.h hw/misc/iotkit-sysinfo.c: Implement SYS_CONFIG1 and IIDR 2021-03-08 17:20:01 +00:00
ivshmem.h ivshmem: add check on protocol version in QEMU 2015-10-24 18:03:18 +02:00
lasi.h lasi: fix RTC migration 2023-04-20 11:17:35 +02:00
led.h hw/misc/led: Add yellow LED 2021-03-15 00:39:30 +01:00
mac_via.h input/adb: Only include header where needed 2023-02-06 11:41:39 +00:00
mchp_pfsoc_dmc.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
mchp_pfsoc_ioscb.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
mchp_pfsoc_sysreg.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
mips_cmgcr.h hw/mips: Declare all length properties as unsigned 2023-03-08 00:37:48 +01:00
mips_cpc.h hw/mips: Fix Lesser GPL version number 2020-11-03 16:51:13 +01:00
mips_itu.h hw/mips/itu: Pass SAAR using QOM link property 2023-03-08 00:37:48 +01:00
mos6522.h input/adb: Only include header where needed 2023-02-06 11:41:39 +00:00
mps2-fpgaio.h hw/misc/mps2-fpgaio: Support AN547 DBGCTRL register 2021-03-08 17:20:03 +00:00
mps2-scc.h hw/misc/mps2-scc: Support using CFG0 bit 0 for remapping 2021-05-10 17:21:54 +01:00
msf2-sysreg.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
npcm7xx_clk.h hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
npcm7xx_gcr.h hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
npcm7xx_mft.h hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
npcm7xx_pwm.h hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
npcm7xx_rng.h hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
nrf51_rng.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
pca9552_regs.h misc: add pca9552 LED blinker model 2018-06-08 13:15:32 +01:00
pca9552.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
pvpanic.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
sifive_e_prci.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
sifive_test.h sifive: Use DECLARE_*CHECKER* macros 2020-09-18 13:49:48 -04:00
sifive_u_otp.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
sifive_u_prci.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
stm32f2xx_syscfg.h hw/misc/stm32f2xx_syscfg: Remove extraneous IRQ 2020-11-10 11:03:48 +00:00
stm32f4xx_exti.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
stm32f4xx_syscfg.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
tz-mpc.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
tz-msc.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
tz-ppc.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
unimp.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
virt_ctrl.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
vmcoreinfo.h qom: fix objects with improper parent type 2020-10-12 11:50:22 -04:00
xlnx-versal-crl.h hw/misc: Add a model of the Xilinx Versal CRL 2022-04-21 11:37:03 +01:00
xlnx-versal-pmc-iou-slcr.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
xlnx-versal-xramc.h hw/misc: versal: Add a model of the XRAM controller 2021-03-12 12:40:09 +00:00
xlnx-zynqmp-apu-ctrl.h hw/misc: Move some arm-related files from specific_ss into softmmu_ss 2022-12-15 17:37:47 +00:00
xlnx-zynqmp-crf.h hw/misc: Add a model of the Xilinx ZynqMP CRF 2022-03-18 11:31:20 +00:00