On 04/25/16 13:21, Laszlo Ersek wrote: > On 04/23/16 08:39, [email protected] wrote: >> Hi everyone, >> I build the Csm16.bin from source code of seabios-1.9.2.tar.gz . And >> copy the Csm16.bin to OvmfPkg/Csm/Csm16/Csm16.bin , Build the OVMF_CODE.fd >> and OVMF_VARS.fd with command build -D CSM_ENABLE. >> Unfortunately, I test the OVMF_CODE.fd and OVMF_VARS.fd in qemu. It >> failed! >> The log is: >> ASSERT_EFI_ERROR (Status = Not Found) >> ASSERT >> /root/tianocore-edk2/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBios.c(982): >> !EFI_ERROR (Status) >> Any information you can provide me would be greatly appreciated. > > Sorry, no idea. The assert is about a memory allocation failure (you can > check the source code at the location captured in the assert): > > Status = AllocateLegacyMemory ( > AllocateAddress, > CONVENTIONAL_MEMORY_TOP - MemorySize, > EFI_SIZE_TO_PAGES (MemorySize), > &MemoryAddress > ); > ASSERT_EFI_ERROR (Status); > > I don't know why it fails. > > Perhaps you can experiment with older SeaBIOS releases and narrow it > down a little. (You could also experiment with OVMF builds at different > git commits, but I don't readily recall anything that could cause this.) > > I'm adding David, Kevin and Gerd to the CC list.
I tried this. I didn't hit this specific assert, but I hit another one: ASSERT IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBios.c(311): Private->BiosStart > Private->OptionRom The problem was that SeaBIOS had grown to 256KB in size: https://code.coreboot.org/p/seabios/source/commit/85f8fac875263 which was too big for LegacyBiosDxe. Manually lowering CONFIG_ROM_SIZE to 128 broke the SeaBIOS CSM build for me. However, setting the same to 192 resulted in a succesful SeaBIOS CSM build, and a working OVMF startup as well. (I didn't try to boot an OS, just the UEFI shell.) The SeaBIOS commit I built at is: c8e105a4d5e52e8e7539ab1f2cd07ebe0ae9033a. Commands: cat >.config <<-EOT CONFIG_CSM=y CONFIG_QEMU_HARDWARE=y CONFIG_PERMIT_UNALIGNED_PCIROM=y CONFIG_DEBUG_LEVEL=20 CONFIG_ROM_SIZE=192 EOT yes "" | make oldconfig make -j2 out/bios.bin Thanks Laszlo _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
