This series is extracted from TDX QEMU v6[1] series per Paolo's request. It is originally motivated by x86 TDX to track CPUID_HT in env->features[] which requires nr_cores and nr_cores being initialized earlier than in qemu_init_vcpu().
Initialize of nr_cores and nr_threads earlier in x86's cpu_realizefn() can make it work for x86 but it's duplicated with the initialization in qemu_init_vcpu() which are used by all the ARCHes. Since initialize them earlier also work for other ARCHes, introduce qemu_init_early_vcpu() to hold the initialization of nr_cores and nr_threads and call it at the beginning in realizefn() for each ARCH. Note, I only tested it for x86 ARCH. Please help test on other ARCHes. The following patch 2 - 4 are x86 specific. [1] https://lore.kernel.org/qemu-devel/CABgObfZVxaQL4FSJX396kAJ67Qp=xhewwcmv+nqzcbdpfbv...@mail.gmail.com/ Xiaoyao Li (4): cpu: Introduce qemu_early_init_vcpu() to initialize nr_cores and nr_threads inside it i386/cpu: Set up CPUID_HT in x86_cpu_expand_features() instead of cpu_x86_cpuid() i386/cpu: Set and track CPUID_EXT3_CMP_LEG in env->features[FEAT_8000_0001_ECX] i386/cpu: Rectify the comment on order dependency on qemu_init_vcpu() accel/tcg/user-exec-stub.c | 4 +++ hw/core/cpu-common.c | 2 +- include/hw/core/cpu.h | 8 +++++ system/cpus.c | 6 +++- target/alpha/cpu.c | 2 ++ target/arm/cpu.c | 2 ++ target/avr/cpu.c | 2 ++ target/hexagon/cpu.c | 2 ++ target/hppa/cpu.c | 2 ++ target/i386/cpu.c | 61 +++++++++++++++++++------------------- target/loongarch/cpu.c | 2 ++ target/m68k/cpu.c | 2 ++ target/microblaze/cpu.c | 2 ++ target/mips/cpu.c | 2 ++ target/openrisc/cpu.c | 2 ++ target/ppc/cpu_init.c | 2 ++ target/riscv/cpu.c | 2 ++ target/rx/cpu.c | 2 ++ target/s390x/cpu.c | 2 ++ target/sh4/cpu.c | 2 ++ target/sparc/cpu.c | 2 ++ target/tricore/cpu.c | 2 ++ target/xtensa/cpu.c | 2 ++ 23 files changed, 85 insertions(+), 32 deletions(-) -- 2.34.1
