Alexander Graf wrote:
I have successfully built the latest kvm, kvm-userspace from git.
I loaded the kvm_amd module with the nested=1 option.
The kvm guest that I am working with has an older version
of kvm (Ubuntu 8.10 + kvm package) and during boot I get:
[ 23.673107] Pid: 4278, comm: modprobe Tainted: G S
2.6.27-7-generic #1
[ 23.673107] RIP: 0010:[<ffffffff8022d35a>] [<ffffffff8022d35a>]
native_write_msr_safe+0xa/0x10
[ 23.673107] RSP: 0018:ffff880018dc3dd8 EFLAGS: 00010002
[ 23.673107] RAX: 0000000000001d01 RBX: ffff880018dc3e04 RCX:
00000000c0000080
Maybe it is just that a newer version of KVM is needed?
I will also try to build a newer version of KVM and test.
Thanks for any comments.
Your guest is writing to an MSR that is unknown to the kvm msr
emulation. What does dmesg on the host say?
You can actually see that it's writing to EFER (rcx = 0xc00000080). But
that should always be implemented on AMD. It's probably complaining
about the svme bit, but that can only happen if nested=0?
--
error compiling committee.c: too many arguments to function
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