Re: [PATCH 0/7] powerpc/watchpoint: 2nd DAWR kvm enablement + selftests

[Ravi Bangoria]

On 7/23/20 3:50 PM, Ravi Bangoria wrote:
> Patch #1, #2 and #3 enables p10 2nd DAWR feature for Book3S kvm guest. DAWR
> is a hypervisor resource and thus H_SET_MODE hcall is used to set/unset it.
> A new case H_SET_MODE_RESOURCE_SET_DAWR1 is introduced in H_SET_MODE hcall
> for setting/unsetting 2nd DAWR. Also, new capability KVM_CAP_PPC_DAWR1 has
> been added to query 2nd DAWR support via kvm ioctl.
>
> This feature also needs to be enabled in Qemu to really use it. I'll reply
> link to qemu patches once I post them in qemu-devel mailing list.

Qemu patches: https://lore.kernel.org/kvm/20200723104220.314671-1-ravi.bangoria@xxxxxxxxxxxxx