<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> </head> <body> <div style="color: rgb(33, 33, 33); background-color: rgb(255, 255, 255); text-align: left;" dir="auto"> Hi Alex,</div> <div style="color: rgb(33, 33, 33); background-color: rgb(255, 255, 255); text-align: left;" dir="auto"> <br> </div> <div style="color: rgb(33, 33, 33); background-color: rgb(255, 255, 255); text-align: left;" dir="auto"> So I had power cycled it multiple number of times.</div> <div style="color: rgb(33, 33, 33); background-color: rgb(255, 255, 255); text-align: left;" dir="auto"> <br> </div> <div style="color: rgb(33, 33, 33); background-color: rgb(255, 255, 255); text-align: left;" dir="auto"> Thanks,</div> <div style="color: rgb(33, 33, 33); background-color: rgb(255, 255, 255); text-align: left;" dir="auto"> Regards,</div> <div style="color: rgb(33, 33, 33); background-color: rgb(255, 255, 255); text-align: left;" dir="auto"> Venu</div> <div id="ms-outlook-mobile-signature"> <div><br> </div> Get <a href="https://aka.ms/ghei36">Outlook for Android</a></div> <div id="id-e24009d9-f5f4-411f-901a-1079ed82512f" class="ms-outlook-mobile-reference-message"> <div style="font-family: sans-serif; font-size: 13.8pt; color: rgb(0, 0, 0);"><br> </div> <hr style="display:inline-block;width:98%" tabindex="-1"> <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> </div> <br> <meta name="Generator" content="Microsoft Exchange Server"> <style></style><font size="2"><span style="font-size:11pt;"> <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> <br> </div> </span></font><br> </div> </body> </html>