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-rw-r--r--debian/patches/virt-Support-detection-for-ARM64-Hyper-V-guests.patch28
1 files changed, 28 insertions, 0 deletions
diff --git a/debian/patches/virt-Support-detection-for-ARM64-Hyper-V-guests.patch b/debian/patches/virt-Support-detection-for-ARM64-Hyper-V-guests.patch
new file mode 100644
index 0000000..373a77f
--- /dev/null
+++ b/debian/patches/virt-Support-detection-for-ARM64-Hyper-V-guests.patch
@@ -0,0 +1,28 @@
+From: Boqun Feng <boqun.feng@gmail.com>
+Date: Wed, 13 Oct 2021 11:32:09 +0800
+Subject: virt: Support detection for ARM64 Hyper-V guests
+
+The detection of Microsoft Hyper-V VMs is done by cpuid currently,
+however there is no cpuid on ARM64. And since ARM64 is now a supported
+architecture for Microsoft Hyper-V guests[1], then use DMI tables to
+detect a Hyper-V guest, which is more generic and works for ARM64.
+
+[1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7aff79e297ee1aa0126924921fd87a4ae59d2467
+
+(cherry picked from commit 506bbc8569014253ea8614b680ccbc4fc2513a87)
+---
+ src/basic/virt.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/basic/virt.c b/src/basic/virt.c
+index 7d78a40..0d45ee6 100644
+--- a/src/basic/virt.c
++++ b/src/basic/virt.c
+@@ -158,6 +158,7 @@ static int detect_vm_dmi(void) {
+ { "Parallels", VIRTUALIZATION_PARALLELS },
+ /* https://wiki.freebsd.org/bhyve */
+ { "BHYVE", VIRTUALIZATION_BHYVE },
++ { "Microsoft", VIRTUALIZATION_MICROSOFT },
+ };
+ unsigned i;
+ int r;