Hi RagHu,
Really appreciate your help.
I was downloaded this software stack from git.linaro.org. This software stack include ATF, kernel, edk2 and so on.
1) What platform you are running on? Can this issue be reproduced
outside your testing environment, perhaps on FVP or QEMU?
A: I am running on ARM N1-Edge FVP platform. It can reproduced on this FVP platform.
2) What version of TF-A and StandaloneMM is being used? Preferably the
commit-id, so that we can be sure we are looking at the same code.
StandloneMM seems build from edk2 & edk2-platform. so i just put edk2 and edk2-platform version information. if anything i missed, please let me know.
3) What version of the kernel and sdei driver is being used?
The sdei driver was included in kernel, do i need to provide sdei driver version? If need please let me know.
4) I can't tell from looking at the log but do you know if writing 0x123
|
to sde_ras_poison causes a DMC620 interrupt or an SError or external
abort through memory access ?
A: Sorry, linaro only refered it will inject the DMC-620 single-bit RAS error. So I am also not sure which exception type it will trigger.
------------------原始邮件 ------------------
发件人:TF-A <tf-a-bounces@lists.trustedfirmware.org>
发送时间:Tue Apr 14 01:25:47 2020
收件人:Raghu Krishnamurthy via TF-A <tf-a@lists.trustedfirmware.org>
主题:Re: [TF-A] [RAS] BL32 UnRecognized Event - 0xC4000061 and BL31 Crashed
Hello,
>>Does BL31 need to send 0xC4000061 event to BL32 again?
I don't think it will. It is really odd that
0xC4000061(SP_EVENT_COMPLETE_AARCH64) ever reaches the BL32/MM handler.
This is from looking at the upstream code quickly but it definitely
depends on the platform you are running, what version of TF-A you are
using, build options used. Is it possible that the unhandled exception
is occurring after successful handling of the DMC620 error but there is
a following issue that occurs right after, causing the crash?
From the register dump it looks like there was an Instruction abort
exception at address 0 while running in EL3. Something seems to have
gone seriously wrong to have 0xC4000061 ever go back to BL32 and to get
an instruction abort at address 0.
>>Does current TF-A support to run RAS test? It seems BL31 will crash.
See above. The answer really depends on the factors mentioned above.
The following would be helpful to know:
1) What platform you are running on? Can this issue be reproduced
outside your testing environment, perhaps on FVP or QEMU?
2) What version of TF-A and StandaloneMM is being used? Preferably the
commit-id, so that we can be sure we are looking at the same code.
3) What version of the kernel and sdei driver is being used?
4) I can't tell from looking at the log but do you know if writing 0x123
to sde_ras_poison causes a DMC620 interrupt or an SError or external
abort through memory access ?
Thanks
Raghu
On 4/13/20 12:16 AM, 吴斌(郅隆) via TF-A wrote:
> Dear Friends,
>
> I am using TF-A to test RAS feature.
> When I triggered DMC620 RAS error in Linux(echo 0x123 >
> /sys/kernel/debug/sdei_ras_poison).
> BL32 will recieve
> UnRecognized Event - 0xC4000061(SP_EVENT_COMPLETE_AARCH64) and finally
> BL31 crashed.
>
> In my understanding, this 0xC4000061 should consumed by BL31, not send
> it to BL32 again.
>
> A piece of error log as below:
>
> *************************************
>
> CperWrite - CperAddress@0xFF610064
> CperWrite - 1 Section@FFBE91A8, Length 80, SectionType@FFBE9138
> CperWrite - Got Error Section: Platform Memory.
> MmEntryPoint Done
> Received delegated event
> X0 : 0xC4000061
> X1 : 0x0
> X2 : 0x0
> X3 : 0x0
> Received event - 0xC4000061 on cpu 0
> UnRecognized Event - 0xC4000061
> Failed delegated event 0xC4000061, Status 0x2
> Unhandled Exception in EL3.
> x30 = 0x0000000000000000
> x0 = 0x00000000ff007e00
> x1 = 0xfffffffffffffffe
> x2 = 0x00000000600003c0
> x3 = 0x0000000000000000
> x4 = 0x0000000000000000
> x5 = 0x0000000000000000
> x6 = 0x00000000ff015080
> x7 = 0x0000000000000000
> x8 = 0x00000000c4000061
> x9 = 0x0000000000000021
> x10 = 0x0000000000000040
> x11 = 0x00000000ff00f2b0
> x12 = 0x00000000ff0118c0
> x13 = 0x0000000000000002
> x14 = 0x00000000ff016b70
> x15 = 0x00000000ff003f20
> x16 = 0x0000000000000044
> x17 = 0x00000000ff010430
> x18 = 0x0000000000000e3c
> x19 = 0x0000000000000000
> More error log please refer to attachment.
>
> My question is,
> 1. Does BL31 need to send 0xC4000061 event to BL32 again?
> 2. Does current TF-A support to run RAS test? It seems BL31 will crash.
>
> Appreciate your help.
>
> BRs,
> Bin Wu
>
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