Hi, Is there any information on which mainboards and CPUs will work with tboot and flicker? We currently have aDQ57TM and i7-860 combo with latest BIOS version. It is supposed to support TPM,TXT and VT-d. But tboot just freezes after SENTER. Flicker comes back from senter with general protection fault and PCRs are not extended. We observe similar behavior for MSI P55A-G55(for which MSI kindly provided a BIOS patch that sets the MSR_IA32_FEATURE_CONTROL to enable SMX).

Hi,

I'm looking to buy a new laptop to run my benchmarks. The goal is that only cpuid and the vmx-instructions will cause VM-exits. The only thing that is missing on present hardware is that it doesn't allow me to disable "cr3 load/store exiting". Therefor I was thinking about replacing my laptop with one equipped with one of these processors:

http://ark.intel.com/Compare.aspx?ids=49666,49652,49653,43544,47341

Aftersuccessfully launching a guest, the code does not stop in my guest entry function at "INT 3", function that I supplied into the GUEST RIP field of the VMCS. Does anyone have an idea why this is happening? Here is a VMCS dump on my Intel Core2 CPU 6300 @1.86Ghz with Windows 7 x64: (Some of the fields here are not supported by the processor, although i've printed them out as well. The guest shares resources with the host for now. ) *** Host State *** HOST_CR0: 0x80050031 HOST_CR3: 0x187000 HOST_CR4: 0x26f8 HOST_RSP: 0xfffffa800420ef50 HOST_RIP: 0xfffff8800485e749

I'm working on a hypervisor that is using the EPT mechanism to demand page guest memory in and out of physical memory (over-commit, though thats not exactly my point here). I was hoping to be able to use VT-d to enable the guests to continue to directly 'own' devices. Though to provide some sort of general purpose DMA remapping I (think at least) I need some means to handle arbitrary guest physical addresses that may be involved in a DMA operation that are presently not mapped to physical pages (i.e. I would mark both the EPT and remapping table entries as invalid for a given GPA).