[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Bug 1888971] Re: SMI trigger causes hang with multiple cores
From: |
Naresh GS |
Subject: |
[Bug 1888971] Re: SMI trigger causes hang with multiple cores |
Date: |
Fri, 31 Jul 2020 06:32:31 -0000 |
I tried without specifying -bios parameter still hang is seen. But this
time it had low memory corruption.
And built seabios with more debug logs but seabios doesn't does SMM init
even when its selected in make menuconfig.
I guess fundamentally th issue is writing 0xXX in IO port 0xB2 should
trigger SMI handler in all possible core but instead it triggers SMI
only in Core#0.
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1888971
Title:
SMI trigger causes hang with multiple cores
Status in QEMU:
New
Bug description:
When using qemu , SMI trigger causes hang/reboot under following
conditions:
1. No KVM but there are more than 1 threads (-smp > 1)
2. When using KVM.
Info:
qemu-system-x86_64 --version
QEMU emulator version 2.11.1(Debian 1:2.11+dfsg-1ubuntu7.29)
Copyright (c) 2003-2017 Fabrice Bellard and the QEMU Project developers
SMI trigger was done by writing 0x00 in IO port 0xB2.
Command:
No failure in SMI trigger when using the below command:
qemu-system-x86_64 -M pc-q35-bionic -smp 1 -bios build/coreboot.rom -serial
stdio -hda ../linux.img -m 2048 | tee 1.txt
Hang/resets with below commands:
qemu-system-x86_64 -M pc-q35-bionic -smp 2 -bios build/coreboot.rom -serial
stdio -hda ../linux.img -m 2048 | tee 1.txt
sudo qemu-system-x86_64 -M pc-q35-bionic,accel=kvm -smp 1 -bios
build/coreboot.rom -serial stdio -hda ../linux.img -m 2048 | tee
1.txt
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1888971/+subscriptions