Re: [Xen-devel] [PATCH] x86/vmx: Fix injection of #DB traps following XSA-165

2015-12-29 Thread Andrew Cooper
On 25/12/2015 01:36, Tian, Kevin wrote: From: Andrew Cooper [mailto:andrew.coop...@citrix.com] Sent: Friday, December 25, 2015 2:23 AM Most debug exceptions are traps rather than faults. Blindly re-injecting them as hardware exception causes the instruction pointer in the exception frame to poi

Re: [Xen-devel] [PATCH] x86/vmx: Fix injection of #DB traps following XSA-165

2015-12-24 Thread Tian, Kevin
> From: Andrew Cooper [mailto:andrew.coop...@citrix.com] > Sent: Friday, December 25, 2015 2:23 AM > > Most debug exceptions are traps rather than faults. Blindly re-injecting them > as hardware exception causes the instruction pointer in the exception frame > to point at the target instruct, rat