Re: [Xen-devel] [PATCH] xen/x86: don't lose event interrupts

2016-05-02 Thread Roger Pau Monné
On Thu, Apr 21, 2016 at 02:34:25PM +0100, Stefano Stabellini wrote: > xen/x86: don't lose event interrupts > > On slow platforms with unreliable TSC, such as QEMU emulated machines, > it is possible for the FreeBSD kernel to request the next event in the > past. In that case, in the current implem

Re: [Xen-devel] [PATCH] xen/x86: don't lose event interrupts

2016-04-25 Thread Stefano Stabellini
On Thu, 21 Apr 2016, Juergen Gross wrote: > On 16/04/16 03:23, Stefano Stabellini wrote: > > On slow platforms with unreliable TSC, such as QEMU emulated machines, > > it is possible for the kernel to request the next event in the past. In > > that case, in the current implementation of xen_vcpuop_

Re: [Xen-devel] [PATCH] xen/x86: don't lose event interrupts

2016-04-21 Thread Juergen Gross
On 16/04/16 03:23, Stefano Stabellini wrote: > On slow platforms with unreliable TSC, such as QEMU emulated machines, > it is possible for the kernel to request the next event in the past. In > that case, in the current implementation of xen_vcpuop_clockevent, we > simply return -ETIME. To be preci