we have machine with VT-d and EPT-capable CPU:
Intel(R) Xeon(R) CPU E5504 [1]

The system is FreeBSD 11.0-CURRENT r282694 installed from ftp.freebsd.org iso.

But dom0 fails to boot at this hardware with "iommu must be enabled for PVH hardware domain" [2]. VT-d support is indeed not detected at kernel level. Here is dmesg with VT-d enabled in BIOS [3] and dmesg with VT-d disabled in BIOS [4]. It's look like there is no difference on both outputs. Here is the proofpic of that the system is VT-d capable and the support is enabled in BIOS [5]. Here is acpidump -t output [6]

Any suggestions what may be wrong? Thanks.

[1] http://ark.intel.com/products/40711/Intel-Xeon-Processor-E5504-4M-Cache-2_00-GHz-4_80-GTs-Intel-QPI
[2] https://people.freebsd.org/~rm/vt-d_on_proliant/dom0_fails_to_boot.mov
[3] https://people.freebsd.org/~rm/vt-d_on_proliant/vt-d_enabled_in_bios.txt
[4] https://people.freebsd.org/~rm/vt-d_on_proliant/vt-d_disabled_in_bios.txt [5] https://people.freebsd.org/~rm/vt-d_on_proliant/there_is_vt-d_option_in_vios.jpg
[6] https://people.freebsd.org/~rm/vt-d_on_proliant/acpidump-t.txt


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