[bazel,qemu] Enable SPI console with TX indicator test for QEMU

Enables the `ottf_console_with_gpio_tx_indicator` test target for the
QEMU execution environment, as this test exercises functionality that is
required to be supported for provisioning flows.

As QEMU does not currently implement the relevant Pinmux connections
between OpenTitan and GPIO, a minor extension is made to the test to
allow users to optionally specify which GPIO pin should be used as the
ready-indicator, rather than hardcoding to IOA5. This is then overriden
for the QEMU execution environment only.

Signed-off-by: Alex Jones <[email protected]>

Author: AlexJones0

sw/device/tests/BUILD

@@ -4382,6 +4382,7 @@ opentitan_test(
     exec_env = {
         "//hw/top_earlgrey:fpga_hyper310_rom_with_fake_keys": None,
         "//hw/top_earlgrey:fpga_cw340_rom_with_fake_keys": None,
+        "//hw/top_earlgrey:sim_qemu_rom_with_fake_keys": None,
     },
     fpga = fpga_params(
         # We run this as part of the manuf test suite as we want to run it in
@@ -4397,6 +4398,14 @@ opentitan_test(
         """,
         test_harness = "//sw/host/tests/chip/ottf_console_with_gpio_tx_indicator",
     ),
+    qemu = qemu_params(
+        test_cmd = """
+            --bootstrap="{firmware}"
+            "{firmware:elf}"
+            --console-tx-indicator-pin=0
+        """,
+        test_harness = "//sw/host/tests/chip/ottf_console_with_gpio_tx_indicator",
+    ),
     deps = [
         "//hw/top_earlgrey/sw/autogen:top_earlgrey",
         "//sw/device/lib/runtime:hart",

sw/host/tests/chip/ottf_console_with_gpio_tx_indicator/src/main.rs

@@ -34,12 +34,17 @@ struct Opts {
     /// Path to the firmware's ELF file, for querying symbol addresses.
     #[arg(value_name = "FIRMWARE_ELF")]
     firmware_elf: PathBuf,
+
+    /// Name of the SPI interface to connect to the OTTF console.
+    #[arg(long, default_value = "IOA5")]
+    console_tx_indicator_pin: String,
 }
 
 fn spi_device_console_test(opts: &Opts, transport: &TransportWrapper) -> Result<()> {
     // Setup the SPI console with the GPIO TX indicator pin.
     let spi = transport.spi(&opts.console_spi)?;
-    let device_console_tx_ready_pin = &transport.gpio_pin("IOA5")?;
+    let device_console_tx_ready_pin =
+        &transport.gpio_pin(opts.console_tx_indicator_pin.as_str())?;
     device_console_tx_ready_pin.set_mode(PinMode::Input)?;
     device_console_tx_ready_pin.set_pull_mode(PullMode::None)?;
     let spi_console_device = SpiConsoleDevice::new(