Paolo Bonzini <pbonzini@xxxxxxxxxx> writes: > On 02/10/2018 12:17, Alexander Shishkin wrote: >> Ok, so this is where the host PT is disabled. >> >> So, my recommendation for this patchset is: we need to address the fact >> that we are disabling host PT without telling the host. We need to >> either stop doing it or inform the host. I don't think there need to be >> any more versions of this patchset until this issue is addressed. > > If you don't want that effect, do not enable host-guest mode. The > default is "off" in fact. One shouldn't have to enable or disable anything in KVM to stop it from breaking one's existing workflow. That makes no sense. There already are controls in perf that enable/disable guest tracing. Regards, -- Alex
