Avi Kivity wrote: > On 11/02/2009 02:51 PM, Alexander Graf wrote: >> Anthony Liguori wrote: >> >>> Hi, >>> >>> I just wanted to let everyone know that I've switched the PC machine >>> type to SeaBIOS and gPXE. SeaBIOS is a port of the Bochs BIOS to GCC, >>> by Kevin O'Conner, along with quite a lot of clean up and new feature >>> work. >>> >>> gPXE is the new development tree of etherboot which is now >>> deprecated. We've done a lot of testing of and while there are a few >>> outstanding issues, almost everything seems to be working okay. >>> >>> Some known issues: >>> o e1000 pxe booting doesn't seem to work >>> o gPXE does not like the slirp tftp server >>> o SeaBIOS doesn't support CPU hotplug (not an issue for upstream qemu) >>> >>> I've renamed the old pcbios to pcbios.bin. If you suspect a bug in >>> SeaBIOS, you can use "-bios pcbios.bin" to try with the old BIOS in an >>> effort to debug. >>> >>> I want to thank everyone who helped make this all happen. It was a >>> big effort and I think it's going to be a really nice feature for the >>> 0.12.0 release! >>> >>> >> -kernel (w/ Linux) breaks. >> > > What do the dumps mean? when are they taken? >
They are taken with -d in_asm,cpu,int after doing: $ ./x86_64-softmmu/qemu-system-x86_64 -kernel ../kvm/arch/x86/boot/bzImage with a fresh checkout from your kvm kernel tree (make defconfig) and a fresh git checkout of qemu (./configure --target-list=x86_64-softmmu) They basically mean that with SeaBIOS the Linux loading code is trying to jump off to zeros while at the same place there is useful data using pcbios.bin. Alex
