On Fri, 10 Apr 2020 at 12:46, Dongjiu Geng <gengdongjiu@xxxxxxxxxx> 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 left a comment on patch 1. The other 3 patches unreviewed are 5, 6 and 8, which are all ACPI core code, so that's for MST, Igor or Shannon to review. Once those have been reviewed, please ping me if you want this to go via target-arm.next. thanks -- PMM
