Re: [PATCH 1/3] kvm,x86: Force sync fault if previous attempts failed

On Wed, Jun 17, 2020 at 03:02:10PM +0200, Vitaly Kuznetsov wrote: > Vivek Goyal writes: > > > Page fault error handling behavior in kvm seems little inconsistent when > > page fault reports error. If we are doing fault synchronously > > then we capture error (-EFAULT) returned by

Re: [PATCH 1/3] kvm,x86: Force sync fault if previous attempts failed

Vivek Goyal writes: > Page fault error handling behavior in kvm seems little inconsistent when > page fault reports error. If we are doing fault synchronously > then we capture error (-EFAULT) returned by __gfn_to_pfn_memslot() and > exit to user space and qemu reports error, "error: kvm run

[PATCH 1/3] kvm,x86: Force sync fault if previous attempts failed

Page fault error handling behavior in kvm seems little inconsistent when page fault reports error. If we are doing fault synchronously then we capture error (-EFAULT) returned by __gfn_to_pfn_memslot() and exit to user space and qemu reports error, "error: kvm run failed Bad address". But if we