Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210709' into staging

target-arm queue:
 * New machine type: stm32vldiscovery
 * hw/intc/arm_gicv3_cpuif: Fix virtual irq number check in icv_[dir|eoir]_write
 * hw/gpio/pl061: Honour Luminary PL061 PUR and PDR registers
 * virt: Fix implementation of GPIO-based powerdown/shutdown mechanism
 * Correct the encoding of MDCCSR_EL0 and DBGDSCRint
 * hw/intc: Improve formatting of MEMTX_ERROR guest error message

# gpg: Signature made Fri 09 Jul 2021 17:09:10 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20210709:
  hw/intc: Improve formatting of MEMTX_ERROR guest error message
  target/arm: Correct the encoding of MDCCSR_EL0 and DBGDSCRint
  hw/arm/stellaris: Expand comment about handling of OLED chipselect
  hw/gpio/pl061: Document a shortcoming in our implementation
  hw/gpio/pl061: Convert to 3-phase reset and assert GPIO lines correctly on reset
  hw/arm/virt: Make PL061 GPIO lines pulled low, not high
  hw/gpio/pl061: Make pullup/pulldown of outputs configurable
  hw/gpio/pl061: Honour Luminary PL061 PUR and PDR registers
  hw/gpio/pl061: Document the interface of this device
  hw/gpio/pl061: Add tracepoints for register read and write
  hw/gpio/pl061: Clean up read/write offset handling logic
  hw/gpio/pl061: Convert DPRINTF to tracepoints
  hw/intc/arm_gicv3_cpuif: Fix virtual irq number check in icv_[dir|eoir]_write
  tests/boot-serial-test: Add STM32VLDISCOVERY board testcase
  docs/system: arm: Add stm32 boards description
  stm32vldiscovery: Add the STM32VLDISCOVERY Machine
  stm32f100: Add the stm32f100 SoC

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

2 files changed, 67 insertions, 0 deletions

diff --git a/docs/system/arm/stm32.rst b/docs/system/arm/stm32.rst
new file mode 100644
index 0000000000..508b92cf86
--- /dev/null
+++ b/docs/system/arm/stm32.rst
@@ -0,0 +1,66 @@
+STMicroelectronics STM32 boards (``netduino2``, ``netduinoplus2``, ``stm32vldiscovery``)
+========================================================================================
+
+The `STM32`_ chips are a family of 32-bit ARM-based microcontroller by
+STMicroelectronics.
+
+.. _STM32: https://www.st.com/en/microcontrollers-microprocessors/stm32-32-bit-arm-cortex-mcus.html
+
+The STM32F1 series is based on ARM Cortex-M3 core. The following machines are
+based on this chip :
+
+- ``stm32vldiscovery``  STM32VLDISCOVERY board with STM32F100RBT6 microcontroller
+
+The STM32F2 series is based on ARM Cortex-M3 core. The following machines are
+based on this chip :
+
+- ``netduino2``         Netduino 2 board with STM32F205RFT6 microcontroller
+
+The STM32F4 series is based on ARM Cortex-M4F core. This series is pin-to-pin
+compatible with STM32F2 series. The following machines are based on this chip :
+
+- ``netduinoplus2``     Netduino Plus 2 board with STM32F405RGT6 microcontroller
+
+There are many other STM32 series that are currently not supported by QEMU.
+
+Supported devices
+-----------------
+
+ * ARM Cortex-M3, Cortex M4F
+ * Analog to Digital Converter (ADC)
+ * EXTI interrupt
+ * Serial ports (USART)
+ * SPI controller
+ * System configuration (SYSCFG)
+ * Timer controller (TIMER)
+
+Missing devices
+---------------
+
+ * Camera interface (DCMI)
+ * Controller Area Network (CAN)
+ * Cycle Redundancy Check (CRC) calculation unit
+ * Digital to Analog Converter (DAC)
+ * DMA controller
+ * Ethernet controller
+ * Flash Interface Unit
+ * GPIO controller
+ * I2C controller
+ * Inter-Integrated Sound (I2S) controller
+ * Power supply configuration (PWR)
+ * Random Number Generator (RNG)
+ * Real-Time Clock (RTC) controller
+ * Reset and Clock Controller (RCC)
+ * Secure Digital Input/Output (SDIO) interface
+ * USB OTG
+ * Watchdog controller (IWDG, WWDG)
+
+Boot options
+------------
+
+The STM32 machines can be started using the ``-kernel`` option to load a
+firmware. Example:
+
+.. code-block:: bash
+
+  $ qemu-system-arm -M stm32vldiscovery -kernel firmware.bin
diff --git a/docs/system/target-arm.rst b/docs/system/target-arm.rst
index 13b3eeaf07..705b8835e4 100644
--- a/docs/system/target-arm.rst
+++ b/docs/system/target-arm.rst
@@ -97,6 +97,7 @@ undocumented; you can get a complete list by running
    arm/collie
    arm/sx1
    arm/stellaris
+   arm/stm32
    arm/virt
    arm/xlnx-versal-virt