Merge branch 'andrew/sev-snp-directions-follow-up' into 'master'

Touch-up SEVSNP test doc

 

See merge request dfinity-lab/public/ic!12594

Author: andrewbattat

ic-os/docs/SEVSnpTest.adoc

@@ -17,16 +17,17 @@ $ wget https://github.com/dfinity/AMDSEV/releases/download/snp-release-<date>/sn
 $ tar xvf snp-release-<date>.tar.gz
 ```
 
-* Install the linux kernel by running the install script in the release directory
+* Install the linux kernel by running the install script in the release directory:
 ```
 $ cd snp-release-<date>
 $ sudo ./install.sh
 ```
 * Reboot the machine and (if needed) choose the SNP host kernel from the grub menu
-* Run the following commands to verify that the SNP is enabled on the host
+* Run the following commands to verify that the SNP is enabled on the host:
 ```
 $ uname -r
-5.17.0-rc6-snp-guest-dfa5ba8348e4
+6.1.0-rc4-snp-host-93fa8c5918a4
+# command will output the SNP host kernel you downloaded
 
 $ sudo dmesg | grep  -i -e sev -e ccp -e rmp
 [    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.14.0-rc2-snp-host-6d4469b86f90 root=/dev/mapper/vgroot-lvroot ro mem_encrypt=on kvm_amd.sev=1 amd_iommu=on
@@ -54,19 +55,19 @@ $ cat /sys/module/kvm_amd/parameters/sev_snp
 Y
 ```
 == Prepare Guest
-* Install these utils
+* Install these utils:
 ```
-$ sudo apt install libvirt-daemon-system virtinst qemu-utils cloud-image-utils
+$ sudo apt install -y libvirt-daemon-system virtinst qemu-utils cloud-image-utils libsnappy-dev
 ```
-* Get an ubuntu image
+* Get an ubuntu image:
 ```
 $ wget https://cloud-images.ubuntu.com/focal/current/focal-server-cloudimg-amd64.img
 ```
-* Create QCOW2 image
+* Create QCOW2 image:
 ```
 $ sudo qemu-img create -b focal-server-cloudimg-amd64.img -f qcow2 -F qcow2 sev-guest.qcow2 100G
 ```
-* Create a cloud-init config file that sets a default password
+* Create a cloud-init config file that sets a default password:
 ```
 $ cat >cloud-config <<EOF
 #cloud-config
@@ -77,25 +78,26 @@ EOF
 
 $ sudo cloud-localds user-data.img cloud-config
 ```
-* Launch a (non-SNP) guest VM
+* Launch a (non-SNP) guest VM:
 ```
 sudo ./launch-qemu.sh -hda sev-guest.qcow2 -config user-data.img
 ```
-** Login with password specified in cloud-config (for this example “ubuntu/password”
-** To exit VM use `Ctrl-]`
+** Login with password specified in cloud-config (for this example, "ubuntu/password")
 
-* Download the https://github.com/dfinity/AMDSEV/releases[latest Guest kernel] from the DFINITY Github and install it:
+** Download the https://github.com/dfinity/AMDSEV/releases[latest Guest kernel] from the DFINITY Github and install it:
 ```
-wget https://github.com/dfinity/AMDSEV/releases/download/snp-release-2023-05-24/linux-image-6.1.0-rc4-snp-guest-93fa8c5918a4_6.1.0-rc4-snp-guest-93fa8c5918a4-1_amd64.deb
+$ wget https://github.com/dfinity/AMDSEV/releases/download/snp-release-2023-05-24/linux-image-6.1.0-rc4-snp-guest-93fa8c5918a4_6.1.0-rc4-snp-guest-93fa8c5918a4-1_amd64.deb
+# Assure you are downloading the latest version!
 
-sudo dpkg -i linux-image-6.1.0-rc4-snp-guest-93fa8c5918a4_6.1.0-rc4-snp-guest-93fa8c5918a4-1_amd64.deb
+$ sudo dpkg -i linux-image-6.1.0-rc4-snp-guest-93fa8c5918a4_6.1.0-rc4-snp-guest-93fa8c5918a4-1_amd64.deb
 ```
 * Shutdown the VM
-* Launch the SNP guest VM
+** To exit VM use `Ctrl-]`
+* Launch the SNP guest VM:
 ```
-sudo ./launch_qemu.sh -hda sev-guest.qcow2 -sev-snp
+$ sudo ./launch_qemu.sh -hda sev-guest.qcow2 -sev-snp
 ```
-* Verify that SNP is enabled on the VM
+* Verify that SNP is enabled on the VM:
 ```
 $ dmesg | grep -i snp
 AMD Memory Encryption Features active: SEV SEV-ES SEV-SNP