On Mon, Aug 18, 2014 at 08:59:28PM -0700, Neel Natu wrote:
I wonder if a vmexit caused by the MTF could overlay with another
vmexit. With the MTF bit set, I expect the guest system to
behave exactly as without the MTF bit. Of course slower due to
single stepping :).
On my Xeon E5-2650
Hi Martin,
On Sat, Aug 16, 2014 at 12:33 PM, Martin Steegmanns
mar...@unix-users.de wrote:
On Tue, Aug 12, 2014 at 06:39:18PM -0700, Neel Natu wrote:
The VM-exit instruction length field is valid only for a subset of VM
exits. See section 27.2.4 Information for VM exits due to instruction
Hello list!
I modified bhyve to toggle the MTF bit on an UD2 instruction.
In a guest system, a program does:
__asm__ __volatile__(
UD2
NOP
xor %rax,%rax
NOP
UD2
);
On the first UD2, MTF bit is correctly set, but the second
UD2 is never reached (waited some
Hi Martin,
On Tue, Aug 12, 2014 at 2:24 AM, Martin Steegmanns mar...@unix-users.de wrote:
Hello list!
I modified bhyve to toggle the MTF bit on an UD2 instruction.
In a guest system, a program does:
__asm__ __volatile__(
UD2
NOP
xor %rax,%rax
NOP
UD2
);
On the
