Hi Cédric, On 3/18/22 14:28, Cédric Le Goater wrote: > The initial eMMC support from Vincent Palatin was largely reworked to > match the current SD framework. The parameters mimick a real 4GB eMMC, > but it can be set to various sizes. > > This adds a new QOM object class for EMMC devices.
That is interesting. Is RPMB emulation implemented? I doesn't look like so, although... > + sd->ext_csd[EXT_CSD_RPMB_MULT] = 0x1; /* RPMB size */ ...this indicates that the device has one block (128 KB) of RPMB if I'm not mistaken. I would be quite interested in testing and possibly helping out implement RPMB, although I must admit don't know much about QEMU internals. I have written some quick & dirty emulation code for RPMB at the Linux ioctl() level, see [1]. This code is useful for CI testing of the OP-TEE OS project [2], but having a lower level emulation in QEMU would be much better since the Linux kernel would "see" the device and report it in sysfs etc. [1] https://github.com/OP-TEE/optee_client/blob/3.16.0/tee-supplicant/src/rpmb.c#L494-L571 [2] https://github.com/OP-TEE/optee_os/ Thanks, -- Jerome
