[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH v24 00/10] Add ARMv8 RAS virtualization support in QEMU
From: |
gengdongjiu |
Subject: |
Re: [PATCH v24 00/10] Add ARMv8 RAS virtualization support in QEMU |
Date: |
Mon, 24 Feb 2020 16:37:44 +0800 |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 |
On 2020/2/21 22:09, Peter Maydell wrote:
> On Mon, 17 Feb 2020 at 13:10, Dongjiu Geng <address@hidden> 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 very much for Peter's review.
Michael/Igor, hope you can review patches 4, 5, 6, 8, thank you very much in
advance.
>
> thanks
> -- PMM
>
> .
>
- Re: [PATCH v24 04/10] ACPI: Build related register address fields via hardware error fw_cfg blob, (continued)
- [PATCH v24 03/10] docs: APEI GHES generation and CPER record description, Dongjiu Geng, 2020/02/17
- [PATCH v24 08/10] ACPI: Record Generic Error Status Block(GESB) table, Dongjiu Geng, 2020/02/17
- [PATCH v24 06/10] ACPI: Record the Generic Error Status Block address, Dongjiu Geng, 2020/02/17
- [PATCH v24 10/10] MAINTAINERS: Add ACPI/HEST/GHES entries, Dongjiu Geng, 2020/02/17
- [PATCH v24 09/10] target-arm: kvm64: handle SIGBUS signal from kernel or KVM, Dongjiu Geng, 2020/02/17
- Re: [PATCH v24 00/10] Add ARMv8 RAS virtualization support in QEMU, Peter Maydell, 2020/02/21
- Re: [PATCH v24 00/10] Add ARMv8 RAS virtualization support in QEMU,
gengdongjiu <=