Re: Integrating port specific syscall proxies

2024-05-30 Thread Nathan Hartman
On Wed, May 29, 2024 at 9:50 AM Gregory Nutt wrote: > On 5/29/2024 6:10 AM, Nathan Hartman wrote: > > That's a security hole in the *hardware*, not in software, right? How can > > that be fixed (unless a new chip is made)? > > No, software. > > Disclaimer: I don't do RISC-V but I do understand A

Re: Integrating port specific syscall proxies

2024-05-30 Thread Stuart Ianna
I'll provide a bit of background on our configuration, as I've understandably caused some confusion. We configure NuttX with CONFIG_BUILD_KERNEL, so we have a kernel with device drivers, and a set of userspace applications. The MMU for Litex is configured so kernel pages are only accessible while

Re: NAND Flash supported Board suggestion

2024-05-30 Thread Sebastien Lorquet
Hello, Yes, the inability to write individual bits in already programmed sectors is a HUGE constraint. We have flash like this in some high security embedded products, and it required a full redesign of our flash interface. Wear leveling is doable, but the particular bit that made us think