Re: [RFC v2 PATCH 6/7] arm64: KVM: Handle trappable TLB instructions

2016-09-06 Thread Christoffer Dall
On Tue, Sep 06, 2016 at 04:44:11PM +0100, Punit Agrawal wrote: > Christoffer Dall writes: > > > On Mon, Sep 05, 2016 at 05:31:36PM +0100, Punit Agrawal wrote: > >> The ARMv8 architecture allows trapping of TLB maintenane instructions > >> from EL0/EL1 to higher exception levels. On encountering a

Re: [RFC v2 PATCH 6/7] arm64: KVM: Handle trappable TLB instructions

2016-09-06 Thread Punit Agrawal
Christoffer Dall writes: > On Mon, Sep 05, 2016 at 05:31:36PM +0100, Punit Agrawal wrote: >> The ARMv8 architecture allows trapping of TLB maintenane instructions >> from EL0/EL1 to higher exception levels. On encountering a trappable TLB >> instruction in a guest, an exception is taken to EL2. >

Re: [RFC v2 PATCH 6/7] arm64: KVM: Handle trappable TLB instructions

2016-09-06 Thread Christoffer Dall
On Mon, Sep 05, 2016 at 05:31:36PM +0100, Punit Agrawal wrote: > The ARMv8 architecture allows trapping of TLB maintenane instructions > from EL0/EL1 to higher exception levels. On encountering a trappable TLB > instruction in a guest, an exception is taken to EL2. > > Add functionality to handle