Re: [PATCH 10/14] arm64: ssbd: Add prctl interface for per-thread mitigation

2018-05-24 Thread Will Deacon
On Tue, May 22, 2018 at 04:06:44PM +0100, Marc Zyngier wrote: > If running on a system that performs dynamic SSBD mitigation, allow > userspace to request the mitigation for itself. This is implemented > as a prctl call, allowing the mitigation to be enabled or disabled at > will for this

Re: [PATCH 10/14] arm64: ssbd: Add prctl interface for per-thread mitigation

2018-05-24 Thread Mark Rutland
On Tue, May 22, 2018 at 04:06:44PM +0100, Marc Zyngier wrote: > If running on a system that performs dynamic SSBD mitigation, allow > userspace to request the mitigation for itself. This is implemented > as a prctl call, allowing the mitigation to be enabled or disabled at > will for this

Re: [PATCH 10/14] arm64: ssbd: Add prctl interface for per-thread mitigation

2018-05-22 Thread Dominik Brodowski
On Tue, May 22, 2018 at 04:06:44PM +0100, Marc Zyngier wrote: > If running on a system that performs dynamic SSBD mitigation, allow > userspace to request the mitigation for itself. This is implemented > as a prctl call, allowing the mitigation to be enabled or disabled at > will for this

Re: [PATCH 10/14] arm64: ssbd: Add prctl interface for per-thread mitigation

2018-05-22 Thread Marc Zyngier
On Tue, 22 May 2018 16:48:42 +0100, Dominik Brodowski wrote: > > > On Tue, May 22, 2018 at 04:06:44PM +0100, Marc Zyngier wrote: > > If running on a system that performs dynamic SSBD mitigation, allow > > userspace to request the mitigation for itself. This is implemented > > as a prctl call,

[PATCH 10/14] arm64: ssbd: Add prctl interface for per-thread mitigation

2018-05-22 Thread Marc Zyngier
If running on a system that performs dynamic SSBD mitigation, allow userspace to request the mitigation for itself. This is implemented as a prctl call, allowing the mitigation to be enabled or disabled at will for this particular thread. Signed-off-by: Marc Zyngier ---