On 06/26/2017 05:03 PM, Andrew Jones wrote:
On Tue, Dec 13, 2016 at 01:20:50PM +0000, Peter Maydell wrote:
On 14 November 2016 at 14:32, Alexander Graf <agraf@xxxxxxx> wrote:
When running with KVM enabled, you can choose between emulating the
gic in kernel or user space. If the kernel supports in-kernel virtualization
of the interrupt controller, it will default to that. If not, if will
default to user space emulation.
Unfortunately when running in user mode gic emulation, we miss out on
timer events which are only available from kernel space. This patch leverages
the new kernel/user space pending line synchronization for those timer events.
Signed-off-by: Alexander Graf <agraf@xxxxxxx>
Reviewed-by: Peter Maydell <peter.maydell@xxxxxxxxxx>
Hi everyone,
I probably missed a refresh of this patch, but as I didn't see anything,
I picked this one up today in order to test the KVM support recently
merged. Tweaking this patch a bit to fit the new ABI allowed me to
instantiate a KVM guest without the in-kernel irqchip (tested on a
mustang). So, FWIW, this is report of a successful test. Is there a
refreshed version of this patch someone can point me to, which I should
test instead?
Sorry, this did fall the cracks way too many times now. I've sent a
respin that hopefully is slightly more future proof than this RFC :)
If your tests passed with this patch, please extend them to also cover
SMP support, as that was broken with this RFC.
Alex
