Add more info

Signed-off-by: Tommy <[email protected]>

README.md

@@ -12,11 +12,84 @@ It is recommended that you follow the docs [here](https://www.qubes-os.org/doc/v
 
 ## Laptop Recommendations
 
-Qubes AEM currently still requires legacy boot. Officially, the last generation of Intel CPUs with VBIOS to support legacy boot Coffee Lake. However, I have found that certain Comet Lake Thinkpads still have legacy support.
+Qubes AEM currently still requires legacy boot. Officially, the last generation of Intel CPUs with VBIOS to support legacy boot is Coffee Lake. However, I have found that certain Comet Lake Thinkpads still have legacy support. Unfortunately, all of them seems to only support U series CPU. You should check the exact laptop model's firmware with the [Lenovo's BIOS simulator](https://download.lenovo.com/bsco/index.html#/).
 
-I recommend that you look though [Lenovo's BIOS simulator](https://download.lenovo.com/bsco/index.html#/) to find a suitable Comet Lake Thinkpad. These will have the longest remaining support lifecycle. Personally, I use a Thinkpad T14 gen 1.
+Alternatively, you should consider Coffee Lake mobile workstation Thinkpads. These should have the longest support life cycle outside of the affomentioned Comet Lake Thinkpads, and support much more powerful H series CPUs. Perrsonally, I am using a P53 with the i9-9880H CPU.
 
-## Lenovo ePrivacy
+### Thinkpad P53 IOMMU groups:
+
+```
+IOMMU Group 0:
+	00:02.0 VGA compatible controller [0300]: Intel Corporation CoffeeLake-H GT2 [UHD Graphics 630] [8086:3e9b] (rev 02)
+IOMMU Group 1:
+	00:00.0 Host bridge [0600]: Intel Corporation Device [8086:3e20] (rev 0d)
+IOMMU Group 2:
+	00:01.0 PCI bridge [0604]: Intel Corporation 6th-10th Gen Core Processor PCIe Controller (x16) [8086:1901] (rev 0d)
+	01:00.0 VGA compatible controller [0300]: NVIDIA Corporation TU104GLM [Quadro RTX 4000 Mobile / Max-Q] [10de:1eb6] (rev a1)
+	01:00.1 Audio device [0403]: NVIDIA Corporation TU104 HD Audio Controller [10de:10f8] (rev a1)
+	01:00.2 USB controller [0c03]: NVIDIA Corporation TU104 USB 3.1 Host Controller [10de:1ad8] (rev a1)
+	01:00.3 Serial bus controller [0c80]: NVIDIA Corporation TU104 USB Type-C UCSI Controller [10de:1ad9] (rev a1)
+IOMMU Group 3:
+	00:04.0 Signal processing controller [1180]: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem [8086:1903] (rev 0d)
+IOMMU Group 4:
+	00:08.0 System peripheral [0880]: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model [8086:1911]
+IOMMU Group 5:
+	00:12.0 Signal processing controller [1180]: Intel Corporation Cannon Lake PCH Thermal Controller [8086:a379] (rev 10)
+IOMMU Group 6:
+	00:14.0 USB controller [0c03]: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller [8086:a36d] (rev 10)
+	00:14.2 RAM memory [0500]: Intel Corporation Cannon Lake PCH Shared SRAM [8086:a36f] (rev 10)
+IOMMU Group 7:
+	00:15.0 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH Serial IO I2C Controller #0 [8086:a368] (rev 10)
+	00:15.1 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH Serial IO I2C Controller #1 [8086:a369] (rev 10)
+IOMMU Group 8:
+	00:16.0 Communication controller [0780]: Intel Corporation Cannon Lake PCH HECI Controller [8086:a360] (rev 10)
+IOMMU Group 9:
+	00:1b.0 PCI bridge [0604]: Intel Corporation Cannon Lake PCH PCI Express Root Port #17 [8086:a340] (rev f0)
+IOMMU Group 10:
+	00:1b.4 PCI bridge [0604]: Intel Corporation Cannon Lake PCH PCI Express Root Port #21 [8086:a32c] (rev f0)
+IOMMU Group 11:
+	00:1c.0 PCI bridge [0604]: Intel Corporation Cannon Lake PCH PCI Express Root Port #1 [8086:a338] (rev f0)
+IOMMU Group 12:
+	00:1c.5 PCI bridge [0604]: Intel Corporation Cannon Lake PCH PCI Express Root Port #6 [8086:a33d] (rev f0)
+IOMMU Group 13:
+	00:1c.7 PCI bridge [0604]: Intel Corporation Cannon Lake PCH PCI Express Root Port #8 [8086:a33f] (rev f0)
+IOMMU Group 14:
+	00:1d.0 PCI bridge [0604]: Intel Corporation Cannon Lake PCH PCI Express Root Port #9 [8086:a330] (rev f0)
+IOMMU Group 15:
+	00:1e.0 Communication controller [0780]: Intel Corporation Cannon Lake PCH Serial IO UART Host Controller [8086:a328] (rev 10)
+IOMMU Group 16:
+	00:1f.0 ISA bridge [0601]: Intel Corporation Cannon Lake LPC Controller [8086:a30e] (rev 10)
+	00:1f.3 Audio device [0403]: Intel Corporation Cannon Lake PCH cAVS [8086:a348] (rev 10)
+	00:1f.4 SMBus [0c05]: Intel Corporation Cannon Lake PCH SMBus Controller [8086:a323] (rev 10)
+	00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH SPI Controller [8086:a324] (rev 10)
+	00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (7) I219-LM [8086:15bb] (rev 10)
+IOMMU Group 17:
+	02:00.0 Non-Volatile memory controller [0108]: Micron Technology Inc 3500 NVMe SSD [1344:5415] (rev 01)
+IOMMU Group 18:
+	03:00.0 Non-Volatile memory controller [0108]: Micron Technology Inc 3500 NVMe SSD [1344:5415] (rev 01)
+IOMMU Group 19:
+	04:00.0 PCI bridge [0604]: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] [8086:15ea] (rev 06)
+IOMMU Group 20:
+	05:00.0 PCI bridge [0604]: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] [8086:15ea] (rev 06)
+IOMMU Group 21:
+	05:01.0 PCI bridge [0604]: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] [8086:15ea] (rev 06)
+IOMMU Group 22:
+	05:02.0 PCI bridge [0604]: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] [8086:15ea] (rev 06)
+IOMMU Group 23:
+	05:04.0 PCI bridge [0604]: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] [8086:15ea] (rev 06)
+IOMMU Group 24:
+	06:00.0 System peripheral [0880]: Intel Corporation JHL7540 Thunderbolt 3 NHI [Titan Ridge 4C 2018] [8086:15eb] (rev 06)
+IOMMU Group 25:
+	2c:00.0 USB controller [0c03]: Intel Corporation JHL7540 Thunderbolt 3 USB Controller [Titan Ridge 4C 2018] [8086:15ec] (rev 06)
+IOMMU Group 26:
+	52:00.0 Network controller [0280]: Intel Corporation Wi-Fi 6 AX200 [8086:2723] (rev 1a)
+IOMMU Group 27:
+	54:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader [10ec:525a] (rev 01)
+IOMMU Group 28:
+	55:00.0 Non-Volatile memory controller [0108]: Micron Technology Inc 3500 NVMe SSD [1344:5415] (rev 01)
+```
+
+### Lenovo ePrivacy
 
 Lenovo ePrivacy can be controlled through `/proc/acpi/ibm/lcdshadow`. I use the following shortcuts: