From: Boqun Feng <boqun.feng@gmail.com>
Date: Wed, 13 Oct 2021 03:32:09 +0000 (+0800)
Subject: virt: Support detection for ARM64 Hyper-V guests
X-Git-Tag: v250-rc1~508
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=506bbc8569014253ea8614b680ccbc4fc2513a87;p=thirdparty%2Fsystemd.git

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
---

diff --git a/src/basic/virt.c b/src/basic/virt.c
index 745a8557795..64581ad2e10 100644
--- a/src/basic/virt.c
+++ b/src/basic/virt.c
@@ -165,6 +165,7 @@ static int detect_vm_dmi_vendor(void) {
                 { "Parallels",           VIRTUALIZATION_PARALLELS },
                 /* https://wiki.freebsd.org/bhyve */
                 { "BHYVE",               VIRTUALIZATION_BHYVE     },
+                { "Microsoft",           VIRTUALIZATION_MICROSOFT },
         };
         int r;