Re: [PATCH v9 05/14] KVM: X86: Implement ring-based dirty memory tracking

2020-05-25 Thread kbuild test robot
Hi Peter, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on vhost/linux-next] [also build test WARNING on linus/master v5.7-rc7] [cannot apply to kvm/linux-next tip/auto-latest linux/master next-20200522] [if your patch is applied to the wrong git tree, please

Re: [PATCH v9 05/14] KVM: X86: Implement ring-based dirty memory tracking

2020-05-25 Thread Peter Xu
On Mon, May 25, 2020 at 10:54:58PM +0800, kbuild test robot wrote: > Hi Peter, > > Thank you for the patch! Perhaps something to improve: > > [auto build test WARNING on vhost/linux-next] > [also build test WARNING on linus/master v5.7-rc7] > [cannot apply to kvm/linux-next tip/auto-latest

Re: [PATCH v9 05/14] KVM: X86: Implement ring-based dirty memory tracking

2020-05-25 Thread Peter Xu
On Mon, May 25, 2020 at 10:48:08AM +0800, kbuild test robot wrote: > Hi Peter, > > Thank you for the patch! Perhaps something to improve: > > [auto build test WARNING on vhost/linux-next] > [also build test WARNING on linus/master v5.7-rc7] > [cannot apply to kvm/linux-next tip/auto-latest

Re: [PATCH v9 05/14] KVM: X86: Implement ring-based dirty memory tracking

2020-05-24 Thread kbuild test robot
Hi Peter, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on vhost/linux-next] [also build test WARNING on linus/master v5.7-rc7] [cannot apply to kvm/linux-next tip/auto-latest linux/master next-20200522] [if your patch is applied to the wrong git tree, please

[PATCH v9 05/14] KVM: X86: Implement ring-based dirty memory tracking

2020-05-23 Thread Peter Xu
This patch is heavily based on previous work from Lei Cao and Paolo Bonzini . [1] KVM currently uses large bitmaps to track dirty memory. These bitmaps are copied to userspace when userspace queries KVM for its dirty page information. The use of bitmaps is mostly sufficient for live migration,