Guillaume Thouvenin wrote: > Hello, > > This patch should solve the problem observed during protected mode > transitions that appears for example during the installation of > openSuse-10.3. Unfortunately there is an issue that crashes > kvm-userspace. I'm not sure if it's a problem introduced by the > patch or if the patch is good and raises a new issue. >
You still aren't emulating the instructions correctly I think. Running your patch, I see: [ 979.755349] Failed vm entry (exit reason 0x21) invalid guest state [ 979.755354] emulation at (46e4b) rip 6e0b: ea 10 6e 18 [ 979.755358] successfully emulated instruction [ 979.756105] Failed vm entry (exit reason 0x21) invalid guest state [ 979.756109] emulation at (46e50) rip 6e10: 66 b8 20 00 [ 979.756111] successfully emulated instruction [ 979.756749] Failed vm entry (exit reason 0x21) invalid guest state [ 979.756752] emulation at (46e54) rip 6e14: 8e d8 8c d0 [ 979.756755] successfully emulated instruction [ 979.757427] Failed vm entry (exit reason 0x21) invalid guest state [ 979.757430] emulation at (46e56) rip 6e16: 8c d0 81 e4 [ 979.757433] successfully emulated instruction [ 979.758074] Failed vm entry (exit reason 0x21) invalid guest state [ 979.758077] emulation at (46e58) rip 6e18: 81 e4 ff ff The corresponding gfxboot code is: 16301 00006E0B EA[106E]1800 jmp pm_seg.prog_c32:switch_to_pm_20 16302 switch_to_pm_20: 16303 16304 bits 32 16305 16306 00006E10 66B82000 mov ax,pm_seg.prog_d16 16307 00006E14 8ED8 mov ds,ax 16308 16309 00006E16 8CD0 mov eax,ss 16310 00006E18 81E4FFFF0000 and esp,0ffffh The VT state should be correct after executing instruction an RIP 6E16 (mov eax, ss). The next instruction should not cause a vmentry failure. The fact that it is for you indicates that you're not updating guest state correctly. My guess would be that load_segment_descriptor is not updating the values within the VMCS. Regards, Anthony Liguori ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
