platform/x86: intel-uncore-freq: Prevent driver loading in guests

jira LE-1907
Rebuild_History Non-Buildable kernel-4.18.0-477.27.1.el8_8
commit-author Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
commit e769cb2
Empty-Commit: Cherry-Pick Conflicts during history rebuild.
Will be included in final tarball splat. Ref for failed cherry-pick at:
ciq/ciq_backports/kernel-4.18.0-477.27.1.el8_8/e769cb20.failed

Loading this driver in guests results in unchecked MSR access error for
MSR 0x620.

There is no use of reading and modifying package/die scope uncore MSRs
in guests. So check for CPU feature X86_FEATURE_HYPERVISOR to prevent
loading of this driver in guests.

Fixes: dbce412 ("platform/x86/intel-uncore-freq: Split common and enumeration part")
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=215870
	Suggested-by: Borislav Petkov <bp@suse.de>
	Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20220427100304.2562990-1-srinivas.pandruvada@linux.intel.com
	Signed-off-by: Hans de Goede <hdegoede@redhat.com>
(cherry picked from commit e769cb2)
	Signed-off-by: Jonathan Maple <jmaple@ciq.com>

# Conflicts:
#	drivers/platform/x86/intel/uncore-frequency/uncore-frequency.c

Author: PlaidCat

ciq/ciq_backports/kernel-4.18.0-477.27.1.el8_8/e769cb20.failed

@@ -0,0 +1,30 @@
+platform/x86: intel-uncore-freq: Prevent driver loading in guests
+
+jira LE-1907
+Rebuild_History Non-Buildable kernel-4.18.0-477.27.1.el8_8
+commit-author Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
+commit e769cb20c5b7c74513b88d1aed482309bcaece71
+Empty-Commit: Cherry-Pick Conflicts during history rebuild.
+Will be included in final tarball splat. Ref for failed cherry-pick at:
+ciq/ciq_backports/kernel-4.18.0-477.27.1.el8_8/e769cb20.failed
+
+Loading this driver in guests results in unchecked MSR access error for
+MSR 0x620.
+
+There is no use of reading and modifying package/die scope uncore MSRs
+in guests. So check for CPU feature X86_FEATURE_HYPERVISOR to prevent
+loading of this driver in guests.
+
+Fixes: dbce412a7733 ("platform/x86/intel-uncore-freq: Split common and enumeration part")
+Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=215870
+	Suggested-by: Borislav Petkov <bp@suse.de>
+	Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
+Link: https://lore.kernel.org/r/20220427100304.2562990-1-srinivas.pandruvada@linux.intel.com
+	Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+(cherry picked from commit e769cb20c5b7c74513b88d1aed482309bcaece71)
+	Signed-off-by: Jonathan Maple <jmaple@ciq.com>
+
+# Conflicts:
+#	drivers/platform/x86/intel/uncore-frequency/uncore-frequency.c
+* Unmerged path drivers/platform/x86/intel/uncore-frequency/uncore-frequency.c
+* Unmerged path drivers/platform/x86/intel/uncore-frequency/uncore-frequency.c