Re: [PATCH v16 02/20] KVM: selftests: Update kvm_init_vm_address_properties() for TDX

[Ackerley Tng]

Lisa Wang <wyihan@xxxxxxxxxx> writes:

> From: Isaku Yamahata <isaku.yamahata@xxxxxxxxx>
>
> Initialize the TDX S-bit and the GPA tag mask in
> kvm_init_vm_address_properties() for TDX VMs, similar to how the C-bit
> is initialized for SEV VMs.
>
> The TDX S-bit is used to distinguish between shared and private guest
> physical addresses. Its position is determined by the guest physical
> address width, which is either 48 or 52 bits for current TDX
> implementations.
>
> Co-developed-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> Co-developed-by: Sagi Shahar <sagis@xxxxxxxxxx>
> Signed-off-by: Sagi Shahar <sagis@xxxxxxxxxx>
> Signed-off-by: Isaku Yamahata <isaku.yamahata@xxxxxxxxx>
> Signed-off-by: Lisa Wang <wyihan@xxxxxxxxxx>
> Reviewed-by: Binbin Wu <binbin.wu@xxxxxxxxxxxxxxx>
> Reviewed-by: Ira Weiny <ira.weiny@xxxxxxxxx>
> Reviewed-by: Xiaoyao Li <xiaoyao.li@xxxxxxxxx>

Reviewed-by: Ackerley Tng <ackerleytng@xxxxxxxxxx>

>
> [...snip...]
>