Re: [Devel] [vz7.7 PATCH] x86/kvm/vmx: do not use vm-exit instruction length for fast MMIO when running nested

2018-02-13 Thread Denis V. Lunev
On 02/13/2018 12:49 PM, Roman Kagan wrote: > From: Vitaly Kuznetsov > > I was investigating an issue with seabios >= 1.10 which stopped working > for nested KVM on Hyper-V. The problem appears to be in > handle_ept_violation() function: when we do fast mmio we need to skip >

[Devel] [vz7.7 PATCH] x86/kvm/vmx: do not use vm-exit instruction length for fast MMIO when running nested

2018-02-13 Thread Roman Kagan
From: Vitaly Kuznetsov I was investigating an issue with seabios >= 1.10 which stopped working for nested KVM on Hyper-V. The problem appears to be in handle_ept_violation() function: when we do fast mmio we need to skip the instruction so we do