Some times we want to know what is the really mean of one cpu option.
For example, in RISC-V, we usually specify a cpu in this way:
-cpu rv64,v=on
If we don't look into the source code, we can't get the ISA extensions
of this -cpu command line.
In this patch set, we add one list_cpu_props API for common cores. It
will output the enabled ISA extensions.
In the near future, I will also list all possible user configurable
options and all possible extensions for this cpu.
In order to reuse the options parse code, I also add a QemuOptsList
for cpu.
After this patch, we can output the extensions for cpu,
"""
./qemu-system-riscv64 -cpu rv64,help
Enabled extensions:
rv64imafdch_zicbom_zicboz_zicsr_zifencei_zihintpause_zawrs_zfa_zba_zbb_zbc_zbs_sstc_svadu
To get all configuable options for this cpu, use -device rv64-riscv-cpu,help
"""
v1->v2:
1) Give a hint to use -device cpu,help for configualbe options on cpu
2) Support list_cpu_props for linux user mode
3) Add default to some properties to make -device cpu,help output better
Todo:
1) Fix Daniel comments on KVM and cpu option check
2) Add support for other archs
3) Move qdev help function from qdev-monitor to qdev-property
LIU Zhiwei (6):
cpu: Add new API cpu_type_by_name
target/riscv: Add API list_cpu_props
softmmu/vl: Add qemu_cpu_opts QemuOptsList
target/riscv: Add default value for misa property
target/riscv: Add defalut value for string property
linux-user: Move qemu_cpu_opts to cpu.c
cpu.c | 63 +++++++++++++++++++++++++++++-------
hw/core/qdev-prop-internal.h | 2 ++
hw/core/qdev-properties.c | 7 ++++
include/exec/cpu-common.h | 3 ++
include/hw/core/cpu.h | 11 +++++++
include/hw/qdev-properties.h | 8 +++++
linux-user/main.c | 10 ++++++
softmmu/vl.c | 11 +++++++
target/riscv/cpu.c | 30 +++++++++++++----
target/riscv/cpu.h | 2 ++
10 files changed, 128 insertions(+), 19 deletions(-)
--
2.17.1
