Hi Alistair, On Fri, Oct 23, 2020 at 11:44 PM Alistair Francis <alistair.fran...@wdc.com> wrote: > > The RISC-V QEMU port currently has lot of preprocessor directives that > check if we are targetting a 32-bit or 64-bit CPU. This means that the > 64-bit RISC-V target can not run 32-bit CPUs. This is different to most > other QEMU architectures and doesn't allow us to mix xlens (such as when > running Hypervisors with different xlen guests). > > This series is a step toward removing some of those to allow us to use > 32-bit CPUs on 64-bit RISC-V targets. > > Alistair Francis (16): > target/riscv: Add a TYPE_RISCV_CPU_BASE CPU > riscv: spike: Remove target macro conditionals > riscv: virt: Remove target macro conditionals > hw/riscv: boot: Remove compile time XLEN checks > hw/riscv: virt: Remove compile time XLEN checks > hw/riscv: spike: Remove compile time XLEN checks > hw/riscv: sifive_u: Remove compile time XLEN checks > target/riscv: fpu_helper: Match function defs in HELPER macros > target/riscv: Add a riscv_cpu_is_32bit() helper function > target/riscv: Specify the XLEN for CPUs > target/riscv: cpu: Remove compile time XLEN checks > target/riscv: cpu_helper: Remove compile time XLEN checks > target/riscv: csr: Remove compile time XLEN checks > target/riscv: cpu: Set XLEN independently from target > target/riscv: Convert the get/set_field() to support 64-bit values > target/riscv: Consolidate *statush registers > > include/hw/riscv/boot.h | 8 +- > include/hw/riscv/spike.h | 6 -- > include/hw/riscv/virt.h | 6 -- > target/riscv/cpu.h | 36 ++++--- > target/riscv/cpu_bits.h | 24 ++--- > hw/riscv/boot.c | 55 ++++++----- > hw/riscv/sifive_u.c | 59 ++++++------ > hw/riscv/spike.c | 50 +++++----- > hw/riscv/virt.c | 36 +++---- > target/riscv/cpu.c | 83 ++++++++++------ > target/riscv/cpu_helper.c | 47 +++------ > target/riscv/csr.c | 197 ++++++++++++++++++++------------------ > target/riscv/fpu_helper.c | 16 ++-- > target/riscv/op_helper.c | 11 +-- > 14 files changed, 328 insertions(+), 306 deletions(-)
Test result: 64-bit virt & sifive_u, boots OpenSBI and kernel. 32-bit virt boots OpenSBI and kernel. 32-bit sifive_u does not boot OpenSBI. Regards, Bin
