Re: Re: [PATCH v5 1/3] RISC-V: KVM: Support runtime configuration for per-VM's HGATP mode

[fangyu.yu@linux.alibaba.com]

>> diff --git a/arch/riscv/kvm/vmid.c b/arch/riscv/kvm/vmid.c
>> index cf34d448289d..c15bdb1dd8be 100644
>> --- a/arch/riscv/kvm/vmid.c
>> +++ b/arch/riscv/kvm/vmid.c
>> @@ -26,7 +26,8 @@ static DEFINE_SPINLOCK(vmid_lock);
>>  void __init kvm_riscv_gstage_vmid_detect(void)
>>  {
>>         /* Figure-out number of VMID bits in HW */
>> -       csr_write(CSR_HGATP, (kvm_riscv_gstage_mode << HGATP_MODE_SHIFT) | HGATP_VMID);
>> +       csr_write(CSR_HGATP, (kvm_riscv_gstage_mode(kvm_riscv_gstage_max_pgd_levels) <<
>> +                             HGATP_MODE_SHIFT) | HGATP_VMID);
>>         vmid_bits = csr_read(CSR_HGATP);
>>         vmid_bits = (vmid_bits & HGATP_VMID) >> HGATP_VMID_SHIFT;
>>         vmid_bits = fls_long(vmid_bits);
>> --
>> 2.50.1
>>
>>
>
>Regards,
>Anup

Hi Anup:

Thanks for the review.

I'll incorporate all of the above changes and post an updated version (v6) shortly.

Thanks,
Fangyu