Re: [PATCH v6 21/22] KVM: x86/mmu: Use ranged-based TLB flush for dirty log memslot flush

From: Sergei Shtylyov
Date: Wed Feb 19 2020 - 04:23:24 EST


Hello!

On 19.02.2020 0:07, Sean Christopherson wrote:

Use the with_address() variant to when performing a TLB flush for a
^^ is it really needed here?

specific memslot via kvm_arch_flush_remote_tlbs_memslot(), i.e. when
flushing after clearing dirty bits during KVM_{GET,CLEAR}_DIRTY_LOG.
This aligns all dirty log memslot-specific TLB flushes to use the
with_address() variant and paves the way for consolidating the relevant
code.

Note, moving to the with_address() variant only affects functionality
when running as a HyperV guest.

Cc: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
[...]

MBR, Sergei