Re: [RFC PATCH 0/9] ARM: Forwarding physical interrupts to a guest VM

2014-06-26 Thread Marc Zyngier
On 26/06/14 13:58, Eric Auger wrote: > On 06/26/2014 11:31 AM, Marc Zyngier wrote: >> Hi Eric, >> >> On 25/06/14 15:52, Eric Auger wrote: >>> On 06/25/2014 11:28 AM, Marc Zyngier wrote: The GIC architecture (ARM's Generic Interrupt Controller) allows an active physical interrupt to be for

Re: [RFC PATCH 0/9] ARM: Forwarding physical interrupts to a guest VM

2014-06-26 Thread Eric Auger
On 06/26/2014 11:31 AM, Marc Zyngier wrote: > Hi Eric, > > On 25/06/14 15:52, Eric Auger wrote: >> On 06/25/2014 11:28 AM, Marc Zyngier wrote: >>> The GIC architecture (ARM's Generic Interrupt Controller) allows an >>> active physical interrupt to be forwarded to a guest, and the guest to >>> indi

Re: [RFC PATCH 0/9] ARM: Forwarding physical interrupts to a guest VM

2014-06-26 Thread Marc Zyngier
Hi Eric, On 25/06/14 15:52, Eric Auger wrote: > On 06/25/2014 11:28 AM, Marc Zyngier wrote: >> The GIC architecture (ARM's Generic Interrupt Controller) allows an >> active physical interrupt to be forwarded to a guest, and the guest to >> indirectly perform the deactivation of the interrupt by pe

Re: [RFC PATCH 0/9] ARM: Forwarding physical interrupts to a guest VM

2014-06-25 Thread Eric Auger
On 06/25/2014 11:28 AM, Marc Zyngier wrote: > The GIC architecture (ARM's Generic Interrupt Controller) allows an > active physical interrupt to be forwarded to a guest, and the guest to > indirectly perform the deactivation of the interrupt by performing an > EOI on the virtual interrupt (see for

[RFC PATCH 0/9] ARM: Forwarding physical interrupts to a guest VM

2014-06-25 Thread Marc Zyngier
The GIC architecture (ARM's Generic Interrupt Controller) allows an active physical interrupt to be forwarded to a guest, and the guest to indirectly perform the deactivation of the interrupt by performing an EOI on the virtual interrupt (see for example the GICv2 spec, 3.2.1). So far, Linux doesn