On 2020/4/17 21:32, Peter Maydell wrote: > 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. Ping MST, Igor and Shannon, sorry for the noise. > > Once those have been reviewed, please ping me if you want this > to go via target-arm.next. > > thanks > -- PMM > > . >
