Re: [PATCH v2 11/11] KVM: riscv: selftests: Add get-reg-list test

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On Fri, May 26, 2023 at 1:18 AM Andrew Jones <ajones@xxxxxxxxxxxxxxxx> wrote:
>

> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(mode),
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_REG(sstatus),
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_REG(sie),
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_REG(stvec),
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_REG(sscratch),
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_REG(sepc),
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_REG(scause),
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_REG(stval),
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_REG(sip),
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_REG(satp),
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_REG(scounteren),
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_TIMER | KVM_REG_RISCV_TIMER_REG(frequency),
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_TIMER | KVM_REG_RISCV_TIMER_REG(time),
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_TIMER | KVM_REG_RISCV_TIMER_REG(compare),
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_TIMER | KVM_REG_RISCV_TIMER_REG(state),
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_ISA_EXT | KVM_RISCV_ISA_EXT_A,
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_ISA_EXT | KVM_RISCV_ISA_EXT_C,
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_ISA_EXT | KVM_RISCV_ISA_EXT_D,
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_ISA_EXT | KVM_RISCV_ISA_EXT_F,
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_ISA_EXT | KVM_RISCV_ISA_EXT_H,
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_ISA_EXT | KVM_RISCV_ISA_EXT_I,
> > +     KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_ISA_EXT | KVM_RISCV_ISA_EXT_M,
>
> I think all the above should have the size KVM_REG_SIZE_ULONG. Please also
> test with a 32-bit host.
>

Hi Andrew,

Just noticed the RISC-V 32-bit kvm selftests was not supported currently.
Even though I tried to remove the below check for 32-bit, there were
still many warning and error messages during compiling.
It seems 32-bit KVM selftests was not supported either for ARM/x86. Do
we have a plan to support it on risc-v?

Regards,
Haibo

diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h
b/tools/testing/selftests/kvm/include/kvm_util_base.h
index ac4aaa21deee..a32ccc06435b 100644
--- a/tools/testing/selftests/kvm/include/kvm_util_base.h
+++ b/tools/testing/selftests/kvm/include/kvm_util_base.h
@@ -205,9 +205,9 @@ extern enum vm_guest_mode vm_mode_default;

 #elif defined(__riscv)

-#if __riscv_xlen == 32
-#error "RISC-V 32-bit kvm selftests not supported"
-#endif
+//#if __riscv_xlen == 32
+//#error "RISC-V 32-bit kvm selftests not supported"
+//#endif

>
> Thanks,
> drew




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