RE: [PATCH 00/13] arm64: KVM: GICv3 ITS emulation

Hello everybody! > The GICv3 ITS (Interrupt Translation Service) is a part of the > ARM GICv3 interrupt controller used for implementing MSIs. > It specifies a new kind of interrupts (LPIs), which are mapped to > establish a connection between a device, its MSI payload value and > the target proc

Re: [PATCH v2 09/11] KVM: arm: disable debug mode if we don't actually need it.

Hi, Will, On 2015/6/1 18:16, Will Deacon wrote: > On Sun, May 31, 2015 at 05:27:10AM +0100, Zhichao Huang wrote: >> Until now we enable debug mode all the time even if we don't >> actually need it. >> >> Inspired by the implementation in arm64, disable debug mode if >> we don't need it. And then w

Re: [PATCH v2 01/11] KVM: arm: plug guest debug exploit

Hi, Marc, On 2015/6/1 18:56, Marc Zyngier wrote: > Hi Zhichao, > > On 31/05/15 05:27, Zhichao Huang wrote: >> Hardware debugging in guests is not intercepted currently, it means >> that a malicious guest can bring down the entire machine by writing >> to the debug registers. >> >> This patch enab