New snphost CI PR test workflow

Added snphost CI PR test workflow to perform snphost cargo tests on the self-hosted runner for a new PR, updated PR or after SNP kernel update on the self-hosted runner

Signed-off-by: Harika Nittala <[email protected]>

Author: LakshmiSaiHarika

.github/workflows/snphost_ci_test.yaml

@@ -0,0 +1,74 @@
+name: snphost CI PR test
+
+on:
+  pull_request_target:
+    types:
+      - reopened
+      - opened
+      - edited
+      - synchronize
+  workflow_dispatch:
+    inputs:
+      pull_request_number:
+        description: 'Specify the pull request number'
+      pull_request_branch:
+        description: 'Specify pull request source branch'
+
+jobs:
+  host_firmware_tests:
+    runs-on: self-hosted
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v3
+
+      - name: Verify if SNP is enabled on the host
+        run: |
+              source ./.github/workflows/snp_function_declarations.sh
+              verify_snp_host
+
+      - name: Set the PR number and PR branch environment based on GH Action event type
+        run: |
+            event_pr_number=''
+            event_pr_branch=''
+
+            if [ ${{ github.event_name }} == "pull_request_target" ]; then
+              event_pr_number=${{ github.event.pull_request.number }}
+              event_pr_branch=${{ github.event.pull_request.head.ref }}
+            elif [ ${{ github.event_name }} == "workflow_dispatch" ]; then
+              event_pr_number=${{ github.event.inputs.pull_request_number }}
+              event_pr_branch=${{ github.event.inputs.pull_request_branch }}
+            fi
+
+            echo "pr_number=${event_pr_number}" >> $GITHUB_ENV
+            echo "pr_branch=${event_pr_branch}" >> $GITHUB_ENV
+
+      - name: Show the GH environment variable current values
+        run: |
+            echo "GH Action PR number = ${{ env.pr_number }}"
+            echo "GH Action PR branch = ${{ env.pr_branch }}"
+
+      - name: Run snphost cargo test on the host
+        run: |
+              set -e
+
+              # Check and install dependencies on the host
+              source ./.github/workflows/snp_function_declarations.sh
+              check_rust_on_host
+
+              cd ${HOME}/
+              git clone https://github.com/LakshmiSaiHarika/snphost.git
+              cd ./snphost
+
+              # Checkout the PR branch
+              if [[ ${{ github.event_name }} == "pull_request_target" || ${{ github.event_name }} == "workflow_dispatch" ]]; then
+                git fetch origin pull/${{ env.pr_number }}/head:${{ env.pr_branch }}
+                git switch ${{ env.pr_branch }}
+              fi
+
+              # Perform cargo test on the host
+              cargo test
+
+      - name: snphost post cleanup tasks
+        if: always()
+        run: rm -rf ${HOME}/snphost
+