Re: [PATCH] riscv: Add RISCVCPUConfig.satp_mode to set sv48, sv57, etc.

On Fri, Nov 18, 2022 at 12:26 AM Alexandre Ghiti wrote: > > RISC-V specifies multiple sizes for addressable memory and Linux probes for > the machine's support at startup via the satp CSR register (done in > csr.c:validate_vm). > > As per the specification, sv64 must support sv57, which in turn

Re: [PATCH] riscv: Add RISCVCPUConfig.satp_mode to set sv48, sv57, etc.

On Wed, Nov 16, 2022 at 11:29 PM Alexandre Ghiti wrote: > > RISC-V specifies multiple sizes for addressable memory and Linux probes for > the machine's support at startup via the satp CSR register (done in > csr.c:validate_vm). > > As per the specification, sv64 must support sv57, which in turn

[PATCH] riscv: Add RISCVCPUConfig.satp_mode to set sv48, sv57, etc.

RISC-V specifies multiple sizes for addressable memory and Linux probes for the machine's support at startup via the satp CSR register (done in csr.c:validate_vm). As per the specification, sv64 must support sv57, which in turn must support sv48...etc. So we can restrict machine support by simply