Re: [PATCH v4 3/5] KVM: PPC: mmio: Reject instructions that access more than mmio.data size

2022-01-24 Thread Nicholas Piggin
Excerpts from Fabiano Rosas's message of January 22, 2022 8:26 am: > The MMIO interface between the kernel and userspace uses a structure > that supports a maximum of 8-bytes of data. Instructions that access > more than that need to be emulated in parts. > > We currently don't have generic

[PATCH v4 3/5] KVM: PPC: mmio: Reject instructions that access more than mmio.data size

2022-01-21 Thread Fabiano Rosas
The MMIO interface between the kernel and userspace uses a structure that supports a maximum of 8-bytes of data. Instructions that access more than that need to be emulated in parts. We currently don't have generic support for splitting the emulation in parts and each set of instructions needs to