On Mon, 17 Feb 2020 at 13:10, Dongjiu Geng <gengdong...@huawei.com> wrote: > > In the ARMv8 platform, the CPU error types includes synchronous external > abort(SEA) and SError Interrupt (SEI). If exception happens in guest, host > does not know the detailed information of guest, so it is expected that guest > can do the recovery. > For example, if an exception happens in a guest user-space application, host > does > not know which application encounters errors, only guest knows it. > > For the ARMv8 SEA/SEI, KVM or host kernel delivers SIGBUS to notify userspace. > After user space gets the notification, it will record the CPER into guest > GHES > buffer and inject an exception or IRQ to guest. > > In the current implementation, if the type of SIGBUS is BUS_MCEERR_AR, we will > treat it as a synchronous exception, and notify guest with ARMv8 SEA > notification type after recording CPER into guest.
Hi; I have reviewed the remaining arm bit of this series (patch 9), and made some comments on patch 1. Still to be reviewed are patches 4, 5, 6, 8: I'm going to assume that Michael or Igor will look at those. thanks -- PMM
