On 03/16/16 01:55, Ni, Ruiyu wrote: > > > Regards, > Ray > > >> -----Original Message----- >> From: Paolo Bonzini [mailto:pbonz...@redhat.com] >> Sent: Wednesday, March 16, 2016 12:06 AM >> To: Ni, Ruiyu <ruiyu...@intel.com> >> Cc: Laszlo Ersek <ler...@redhat.com>; Justen, Jordan L >> <jordan.l.jus...@intel.com>; edk2-devel@lists.01.org >> <edk2-de...@ml01.01.org> >> Subject: Re: [edk2] Software SMI STS bit is not set when writing port B2 in >> QEMU Q35 >> >> >> >> On 15/03/2016 16:48, Ni, Ruiyu wrote: >>> I don't think CSM matters and the bin I am using cannot be >>> distributed. Does the qemu build steps matters? I ran configure >>> --target-list=x86_64-softmmu. I traced the code and found the code >>> hung when SMM is relocating. The code was waiting for mRebased flag >>> be set. >> >> First of all, can you reproduce the problem without CSM? > > Yes. I also attached the OVMF_CODE.fd and OVMF_VARS.fd > (in OVMF.zip). > Can you help to try whether it can boot to shell in your qemu? > I can confirm when accel=tcg the OVMF can boot well. > But when accel=kvm it cannot. > SMM emulation over KVM has certain requirements for > HOST PC which I am not aware of?
Your binary works for me (it boots to the UEFI shell) on KVM. As far as I understand, for the host kernel (= KVM), the requirement is Linux 4.4 or later. I'm not using an upstream host kernel; at the moment I'm using one of Paolo's RHEL-7 backport kernels. So, my testing didn't repeat that part of your setup. I can see from your earlier email that you upgraded your host kernel to 4.4.1 and you rebooted your PC with it. Is this an upstream kernel that you built, or is it packaged by Ubuntu? As far as I can see, the latest release for Ubuntu 14.04 is 14.04.4. By default it comes with a 4.2 based kernel: https://wiki.ubuntu.com/TrustyTahr/ReleaseNotes#Updated_Packages I think something is wrong with your host kernel. Based on the information available, I cannot decide if it is actually a Ubuntu kernel that is simply too old, or an upstream 4.4.1 stable kernel release that you built yourself, and maybe 4.4.1 regressed relative to 4.4.0. If you built the host kernel manually, why did you pick 4.4.1 exactly? As far as I can see, 4.4.5 is also available from stable git: http://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-4.4.y&id=62e21959dc6f25c5fce0c1a0934e4a9d982bf99b Hmm, I googled "Ubuntu" and "4.4.1" together, and the only relevant hits I seem to be getting are from: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.1-wily/ I wouldn't recommend using those -- PPA means "Personal Package Archives", plus the "wily" suffix implies the 15.10 release of Ubuntu, not 14.04. If you insist on using Ubuntu, please at least try 16.04 LTS ("Xenial Xerus"), which is apparently based on 4.4 *officially*. Thanks Laszlo _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
