Hi Stefan,

On 14/7/23 17:41, Stefan Berger wrote:
The ppi command line option for the TIS device on sysbus never worked
and caused an immediate segfault. Remove support for it since it also
needs support in the firmware and needs testing inside the VM.

Reproducer with the ppi=on option passed:

qemu-system-aarch64 \
    -machine virt,gic-version=3 \
    -m 4G  \
    -nographic -no-acpi \
    -chardev socket,id=chrtpm,path=/tmp/mytpm1/swtpm-sock \
    -tpmdev emulator,id=tpm0,chardev=chrtpm \
    -device tpm-tis-device,tpmdev=tpm0,ppi=on
[...]
Segmentation fault (core dumped)

Signed-off-by: Stefan Berger <stef...@linux.ibm.com>
Reviewed-by: Eric Auger <eric.au...@redhat.com>
Message-id: 20230713171955.149236-1-stef...@linux.ibm.com
---
  hw/tpm/tpm_tis_sysbus.c | 1 -
  1 file changed, 1 deletion(-)

diff --git a/hw/tpm/tpm_tis_sysbus.c b/hw/tpm/tpm_tis_sysbus.c
index 45e63efd63..6724b3d4f6 100644
--- a/hw/tpm/tpm_tis_sysbus.c
+++ b/hw/tpm/tpm_tis_sysbus.c
@@ -93,7 +93,6 @@ static void tpm_tis_sysbus_reset(DeviceState *dev)
  static Property tpm_tis_sysbus_properties[] = {
      DEFINE_PROP_UINT32("irq", TPMStateSysBus, state.irq_num, TPM_TIS_IRQ),
      DEFINE_PROP_TPMBE("tpmdev", TPMStateSysBus, state.be_driver),
-    DEFINE_PROP_BOOL("ppi", TPMStateSysBus, state.ppi_enabled, false),

Since properties are user-facing, shouldn't we deprecate their
removal? I'm not sure so I ask :) Otherwise we could register
the property with object_class_property_add_bool() and have
the setter display a warning. Anyhow I suppose now setting
"ppi" triggers some error, which is better than a abort.

      DEFINE_PROP_END_OF_LIST(),
  };


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