Re: [PATCH 0/2] Fix issue with not starting nesting guests on my system

2020-05-27 Thread Paolo Bonzini
On 23/05/20 18:14, Maxim Levitsky wrote: > On my AMD machine I noticed that I can't start any nested guests, > because nested KVM (everything from master git branches) complains > that it can't find msr MSR_IA32_UMWAIT_CONTROL which my system doesn't support > at all anyway. > > I traced it to the

Re: [PATCH 0/2] Fix issue with not starting nesting guests on my system

2020-05-27 Thread Maxim Levitsky
On Tue, 2020-05-26 at 18:13 -0700, Sean Christopherson wrote: > On Sat, May 23, 2020 at 07:14:53PM +0300, Maxim Levitsky wrote: > > On my AMD machine I noticed that I can't start any nested guests, > > because nested KVM (everything from master git branches) complains > > that it can't find msr MSR

Re: [PATCH 0/2] Fix issue with not starting nesting guests on my system

2020-05-27 Thread Maxim Levitsky
On Tue, 2020-05-26 at 18:13 -0700, Sean Christopherson wrote: > On Sat, May 23, 2020 at 07:14:53PM +0300, Maxim Levitsky wrote: > > On my AMD machine I noticed that I can't start any nested guests, > > because nested KVM (everything from master git branches) complains > > that it can't find msr MSR

Re: [PATCH 0/2] Fix issue with not starting nesting guests on my system

2020-05-26 Thread Sean Christopherson
On Tue, May 26, 2020 at 06:03:32PM -0700, Krish Sadhukhan wrote: > > On 5/23/20 9:14 AM, Maxim Levitsky wrote: > >On my AMD machine I noticed that I can't start any nested guests, > >because nested KVM (everything from master git branches) complains > >that it can't find msr MSR_IA32_UMWAIT_CONTRO

Re: [PATCH 0/2] Fix issue with not starting nesting guests on my system

2020-05-26 Thread Sean Christopherson
On Sat, May 23, 2020 at 07:14:53PM +0300, Maxim Levitsky wrote: > On my AMD machine I noticed that I can't start any nested guests, > because nested KVM (everything from master git branches) complains > that it can't find msr MSR_IA32_UMWAIT_CONTROL which my system doesn't support > at all anyway.

Re: [PATCH 0/2] Fix issue with not starting nesting guests on my system

2020-05-26 Thread Krish Sadhukhan
On 5/23/20 9:14 AM, Maxim Levitsky wrote: On my AMD machine I noticed that I can't start any nested guests, because nested KVM (everything from master git branches) complains that it can't find msr MSR_IA32_UMWAIT_CONTROL which my system doesn't support at all anyway. I traced it to the recent

[PATCH 0/2] Fix issue with not starting nesting guests on my system

2020-05-23 Thread Maxim Levitsky
On my AMD machine I noticed that I can't start any nested guests, because nested KVM (everything from master git branches) complains that it can't find msr MSR_IA32_UMWAIT_CONTROL which my system doesn't support at all anyway. I traced it to the recently added UMWAIT support to qemu and kvm. The k