Re: [PATCH v3 01/62] KVM: arm64: Explicitly treat routing entry type changes as changes

Oliver Upton
2025-06-13T19:43:31Z

On Wed, Jun 11, 2025 at 03:45:04PM -0700, Sean Christopherson wrote:
> Explicitly treat type differences as GSI routing changes, as comparing MSI
> data between two entries could get a false negative, e.g. if userspace
> changed the type but left the type-specific data as-
>
> Note, the same bug was fixed in x86 by commit bcda70c56f3e ("KVM: x86:
> Explicitly treat routing entry type changes as changes").

Yeah, I'll let you guess where I got the idea from...

> Fixes: 4bf3693d36af ("KVM: arm64: Unmap vLPIs affected by changes to GSI routing information")
> Signed-off-by: Sean Christopherson <seanjc@google.com>

Reviewed-by: Oliver Upton <oliver.upton@linux.dev>

Thanks,
Oliver