<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">For HP proliant uefi bios, it should look like<div><br></div><div><ol class="ol steps" id="GUID-D7147C7F-2016-0901-0A72-00000000072B__V31396307" style="box-sizing: border-box; margin-top: 0px; margin-bottom: 10px; font-family: Arial, "Arial Unicode MS", sans-serif; font-size: 13.333333015441895px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); -webkit-text-size-adjust: 100%;"><li class="li step" id="GUID-D7147C7F-2016-0901-0A72-00000000072B__V31396308" style="box-sizing: border-box;"><span class="ph cmd" id="GUID-D7147C7F-2016-0901-0A72-00000000072B__V31396309" style="box-sizing: border-box;">From the <span class="ph uicontrol" style="box-sizing: border-box; font-weight: bold;">System Utilities</span> screen, select <span class="ph menucascade" style="box-sizing: border-box;"><span class="ph uicontrol" style="box-sizing: border-box; font-weight: bold;">System Configuration</span> > <span class="ph uicontrol" style="box-sizing: border-box; font-weight: bold;">BIOS/Platform Configuration (RBSU)</span> > <span class="ph uicontrol" style="box-sizing: border-box; font-weight: bold;">System Options</span> > <span class="ph uicontrol" style="box-sizing: border-box; font-weight: bold;">Virtualization Options</span> > <span class="ph uicontrol" style="box-sizing: border-box; font-weight: bold;">Intel (R) VT-d</span></span> and press <span class="ph uicontrol" style="box-sizing: border-box; font-weight: bold;">Enter</span>. </span></li><li class="li step" id="GUID-D7147C7F-2016-0901-0A72-00000000072B__V31396310" style="box-sizing: border-box;"><span class="ph cmd" id="GUID-D7147C7F-2016-0901-0A72-00000000072B__V31396311" style="box-sizing: border-box;">Select a setting and press <span class="ph uicontrol" style="box-sizing: border-box; font-weight: bold;">Enter</span>. </span><ol class="ol substeps" type="a" id="GUID-D7147C7F-2016-0901-0A72-00000000072B__V31396312" style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px;"><li class="li substep" id="GUID-D7147C7F-2016-0901-0A72-00000000072B__V31396313" style="box-sizing: border-box;"><span class="ph cmd" style="box-sizing: border-box;"><span class="ph uicontrol" style="box-sizing: border-box; font-weight: bold;">Enabled</span>—Enables a hypervisor or operating system supporting this option to use hardware capabilities provided by Intel’s Virtualization Technology for directed I/O. </span></li><li class="li substep" id="GUID-D7147C7F-2016-0901-0A72-00000000072B__V31396315" style="box-sizing: border-box;"><span class="ph cmd" style="box-sizing: border-box;"><span class="ph uicontrol" style="box-sizing: border-box; font-weight: bold;">Disabled</span>—Does not enable a hypervisor or operating system supporting this option to use hardware capabilities provided by Intel’s Virtualization Technology for directed I/O. </span></li></ol></li><li class="li step" id="GUID-D7147C7F-2016-0901-0A72-00000000072B__V31396317" style="box-sizing: border-box;"><span class="ph cmd" id="GUID-D7147C7F-2016-0901-0A72-00000000072B__V31396318" style="box-sizing: border-box;">Press <span class="ph uicontrol" style="box-sizing: border-box; font-weight: bold;">F10</span>.</span></li></ol><br><div dir="ltr">Yours might be a little different depending on the bios version. A de Beus<br><br><span id="signature"></span></div><div dir="ltr"><br><blockquote type="cite">On Nov 22, 2019, at 10:29, Venumadhav Josyula <vjosyula@parallelwireless.com> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
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Hi Alex,</div>
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<br>
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So I had power cycled it multiple number of times.</div>
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Thanks,</div>
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Regards,</div>
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Venu</div>
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<div id="divRplyFwdMsg"><strong>From:</strong> Alex Williamson <alex.williamson@redhat.com><br>
<strong>Sent:</strong> Friday, 22 November, 2019, 10:30 pm<br>
<strong>To:</strong> Venumadhav Josyula<br>
<strong>Cc:</strong> vfio-users@redhat.com; Venumadhav Josyula<br>
<strong>Subject:</strong> Re: [vfio-users] No IOMMU Groups seen in /sys/kernel/iommu_groups/<br>
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<div class="PlainText">On Fri, 22 Nov 2019 22:13:32 +0530<br>
Venumadhav Josyula <vjosyula@gmail.com> wrote:<br>
<br>
> So in the bios I need I check for ACPI :DMAR ?<br>
<br>
It's likely not represented that way, what I'm saying is that the list<br>
of ACPI tables from your dmesg below should include one named "DMAR".<br>
It currently does not and until it does, VT-d is not going to work. A<br>
BIOS setting to enable the "IOMMU" or "VT-d" is typically required to<br>
enable support for this table, but I don't know exactly how your BIOS<br>
exposes it. If such an option is already enabled in your BIOS, a power<br>
cycle may be required to complete the process. Thanks,<br>
<br>
Alex<br>
<br>
[ 0.000000] ACPI: RSDP 000000007b7fe014 00024 (v02 HP )<br>
[ 0.000000] ACPI: XSDT 000000007b7e8188 000EC (v01 HP ProLiant 00000001 01000013)<br>
[ 0.000000] ACPI: FACP 000000007b7f5000 0010C (v05 HP ProLiant 00000001 HP 00000001)<br>
[ 0.000000] ACPI: DSDT 000000007b7e4000 03577 (v02 HP DSDT 00000002 HPAG 00020000)<br>
[ 0.000000] ACPI: FACS 000000007b5dd000 00040<br>
[ 0.000000] ACPI: UEFI 000000007b5f3000 00042 (v01 HP ProLiant 00000000 00000000)<br>
[ 0.000000] ACPI: MCEJ 000000007b7fc000 00130 (v01 HP ProLiant 00000001 INTL 0100000D)<br>
[ 0.000000] ACPI: SSDT 000000007b7fb000 00064 (v02 HP SpsNvs 00000002 INTL 20130328)<br>
[ 0.000000] ACPI: HEST 000000007b7fa000 000A8 (v01 HP ProLiant 00000001 INTL 00000001)<br>
[ 0.000000] ACPI: BERT 000000007b7f9000 00030 (v01 HP ProLiant 00000001 INTL 00000001)<br>
[ 0.000000] ACPI: ERST 000000007b7f8000 00230 (v01 HP ProLiant 00000001 INTL 00000001)<br>
[ 0.000000] ACPI: EINJ 000000007b7f7000 00150 (v01 HP ProLiant 00000001 INTL 00000001)<br>
[ 0.000000] ACPI: BGRT 000000007b7f6000 00038 (v01 HP ProLiant 00000002 HP 01000013)<br>
[ 0.000000] ACPI: HPET 000000007b7f4000 00038 (v01 HP ProLiant 00000001 HP 00000001)<br>
[ 0.000000] ACPI: PMCT 000000007b7f3000 00064 (v01 HP ProLiant 00000001 HP 00000001)<br>
[ 0.000000] ACPI: WDDT 000000007b7f2000 00040 (v01 HP ProLiant 00000001 HP 00000001)<br>
[ 0.000000] ACPI: APIC 000000007b7f1000 0014A (v03 HP ProLiant 00000001 HP 00000001)<br>
[ 0.000000] ACPI: MCFG 000000007b7f0000 0003C (v01 HP ProLiant 00000001 HP 00000001)<br>
[ 0.000000] ACPI: SLIT 000000007b7ef000 00030 (v01 HP ProLiant 00000001 HP 00000001)<br>
[ 0.000000] ACPI: SRAT 000000007b7ee000 00140 (v03 HP ProLiant 00000001 HP 00000001)<br>
[ 0.000000] ACPI: SPMI 000000007b7ed000 00041 (v05 HP ProLiant 00000001 HP 00000001)<br>
[ 0.000000] ACPI: RASF 000000007b7ec000 00030 (v01 HP ProLiant 00000001 HP 00000001)<br>
[ 0.000000] ACPI: SPCR 000000007b7eb000 00050 (v01 HP ProLiant 00000001 HP 00000001)<br>
[ 0.000000] ACPI: MSCT 000000007b7ea000 00064 (v01 HP ProLiant 00000001 HP 00000001)<br>
[ 0.000000] ACPI: BDAT 000000007b7e9000 00030 (v01 HP ProLiant 00000001 HP 00000001)<br>
[ 0.000000] ACPI: PCCT 000000007b7fd000 0006E (v01 HP ProLiant 00000001 HP 00000001)<br>
[ 0.000000] ACPI: SSDT 000000007b7dd000 0657A (v02 HP PCISSDT 00000002 HPAG 00020000)<br>
[ 0.000000] ACPI: SSDT 000000007b7dc000 001CB (v02 HP TIMESSDT 00000002 HPAG 00020000)<br>
[ 0.000000] ACPI: SSDT 000000007b7db000 002F2 (v01 HP pmab 00000001 INTL 20130328)<br>
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