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virt-what/SOURCES/0008-Fix-support-for-Hyper-...

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From 128d73c47ef90ca871966a5417962836f9f359f1 Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Tue, 2 Jul 2024 08:45:10 +0000
Subject: [PATCH] Fix support for Hyper-V on Arm
This architecture lacks CPUID so we must fall back to looking
at DMI data instead.
Reported-by: Yuxin Sun
Thanks: Dan Berrange
Fixes: https://issues.redhat.com/browse/RHEL-45834
(cherry picked from commit 49a17ec8438d01280750d52ae661c8c5c9fe9d07)
---
configure.ac | 2 +
tests/hyperv-arm/Makefile.am | 28 +++
tests/hyperv-arm/proc/cpuinfo | 18 ++
tests/hyperv-arm/proc/self/status | 57 +++++
tests/hyperv-arm/sbin/dmidecode | 221 +++++++++++++++++++
tests/hyperv-arm/sbin/uname | 2 +
tests/hyperv-arm/sbin/virt-what-cpuid-helper | 2 +
tests/hyperv-arm/test.sh | 32 +++
virt-what.in | 16 +-
9 files changed, 374 insertions(+), 4 deletions(-)
create mode 100644 tests/hyperv-arm/Makefile.am
create mode 100644 tests/hyperv-arm/proc/cpuinfo
create mode 100644 tests/hyperv-arm/proc/self/status
create mode 100755 tests/hyperv-arm/sbin/dmidecode
create mode 100755 tests/hyperv-arm/sbin/uname
create mode 100755 tests/hyperv-arm/sbin/virt-what-cpuid-helper
create mode 100755 tests/hyperv-arm/test.sh
diff --git a/configure.ac b/configure.ac
index 632e25e91..4dd2c9731 100644
--- a/configure.ac
+++ b/configure.ac
@@ -48,6 +48,7 @@ tests="\
esx4.1 \
google-cloud \
hyperv \
+ hyperv-arm \
illumos-lx \
kvm \
kvm-explicit-cpu \
@@ -99,6 +100,7 @@ AC_CONFIG_FILES([Makefile
tests/esx4.1/Makefile
tests/google-cloud/Makefile
tests/hyperv/Makefile
+ tests/hyperv-arm/Makefile
tests/illumos-lx/Makefile
tests/kvm/Makefile
tests/kvm-explicit-cpu/Makefile
diff --git a/tests/hyperv-arm/Makefile.am b/tests/hyperv-arm/Makefile.am
new file mode 100644
index 000000000..b748df8bc
--- /dev/null
+++ b/tests/hyperv-arm/Makefile.am
@@ -0,0 +1,28 @@
+# Makefile for virt-what
+# Copyright (C) 2008-2011 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+CLEANFILES = *~
+
+TESTS = test.sh
+
+EXTRA_DIST = \
+ test.sh \
+ proc/cpuinfo \
+ proc/self/status \
+ sbin/dmidecode \
+ sbin/uname \
+ sbin/virt-what-cpuid-helper
diff --git a/tests/hyperv-arm/proc/cpuinfo b/tests/hyperv-arm/proc/cpuinfo
new file mode 100644
index 000000000..c492a0024
--- /dev/null
+++ b/tests/hyperv-arm/proc/cpuinfo
@@ -0,0 +1,18 @@
+processor : 0
+BogoMIPS : 50.00
+Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop asimddp
+CPU implementer : 0x41
+CPU architecture: 8
+CPU variant : 0x3
+CPU part : 0xd0c
+CPU revision : 1
+
+processor : 1
+BogoMIPS : 50.00
+Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop asimddp
+CPU implementer : 0x41
+CPU architecture: 8
+CPU variant : 0x3
+CPU part : 0xd0c
+CPU revision : 1
+
diff --git a/tests/hyperv-arm/proc/self/status b/tests/hyperv-arm/proc/self/status
new file mode 100644
index 000000000..129e9c2aa
--- /dev/null
+++ b/tests/hyperv-arm/proc/self/status
@@ -0,0 +1,57 @@
+Name: cat
+Umask: 0022
+State: R (running)
+Tgid: 17916
+Ngid: 0
+Pid: 17916
+PPid: 5880
+TracerPid: 0
+Uid: 1000 1000 1000 1000
+Gid: 1000 1000 1000 1000
+FDSize: 256
+Groups: 4 190 1000
+NStgid: 17916
+NSpid: 17916
+NSpgid: 17916
+NSsid: 5880
+VmPeak: 5284 kB
+VmSize: 5284 kB
+VmLck: 0 kB
+VmPin: 0 kB
+VmHWM: 772 kB
+VmRSS: 772 kB
+RssAnon: 80 kB
+RssFile: 692 kB
+RssShmem: 0 kB
+VmData: 344 kB
+VmStk: 132 kB
+VmExe: 24 kB
+VmLib: 1736 kB
+VmPTE: 48 kB
+VmSwap: 0 kB
+HugetlbPages: 0 kB
+CoreDumping: 0
+THP_enabled: 1
+Threads: 1
+SigQ: 0/30549
+SigPnd: 0000000000000000
+ShdPnd: 0000000000000000
+SigBlk: 0000000000000000
+SigIgn: 0000000000000000
+SigCgt: 0000000000000000
+CapInh: 0000000000000000
+CapPrm: 0000000000000000
+CapEff: 0000000000000000
+CapBnd: 000001ffffffffff
+CapAmb: 0000000000000000
+NoNewPrivs: 0
+Seccomp: 0
+Seccomp_filters: 0
+Speculation_Store_Bypass: not vulnerable
+SpeculationIndirectBranch: unknown
+Cpus_allowed: 3
+Cpus_allowed_list: 0-1
+Mems_allowed: 00000000,00000001
+Mems_allowed_list: 0
+voluntary_ctxt_switches: 0
+nonvoluntary_ctxt_switches: 0
diff --git a/tests/hyperv-arm/sbin/dmidecode b/tests/hyperv-arm/sbin/dmidecode
new file mode 100755
index 000000000..38ac3feac
--- /dev/null
+++ b/tests/hyperv-arm/sbin/dmidecode
@@ -0,0 +1,221 @@
+#!/bin/sh -
+cat <<'EOF'
+# dmidecode 3.3
+Getting SMBIOS data from sysfs.
+SMBIOS 3.1.0 present.
+Table at 0x3FD63000.
+
+Handle 0x0000, DMI type 0, 26 bytes
+BIOS Information
+ Vendor: Microsoft Corporation
+ Version: Hyper-V UEFI Release v4.1
+ Release Date: 11/28/2023
+ ROM Size: 64 kB
+ Characteristics:
+ BIOS characteristics not supported
+ ACPI is supported
+ Targeted content distribution is supported
+ UEFI is supported
+ System is a virtual machine
+ BIOS Revision: 4.1
+
+Handle 0x0001, DMI type 1, 27 bytes
+System Information
+ Manufacturer: Microsoft Corporation
+ Product Name: Virtual Machine
+ Version: Hyper-V UEFI Release v4.1
+ Serial Number: 0000-0011-3798-4833-3781-8467-28
+ UUID: 9ded57c4-3ce3-4ac8-aaaf-2c4ccf6e7a59
+ Wake-up Type: Power Switch
+ SKU Number: None
+ Family: Virtual Machine
+
+Handle 0x0002, DMI type 3, 24 bytes
+Chassis Information
+ Manufacturer: Microsoft Corporation
+ Type: Desktop
+ Lock: Not Present
+ Version: Hyper-V UEFI Release v4.1
+ Serial Number: 6708-6940-4856-4751-7507-5546-20
+ Asset Tag: 7783-7084-3265-9085-8269-3286-77
+ Boot-up State: Safe
+ Power Supply State: Safe
+ Thermal State: Safe
+ Security Status: Unknown
+ OEM Information: 0x00000000
+ Height: Unspecified
+ Number Of Power Cords: Unspecified
+ Contained Elements: 0
+ SKU Number: Virtual Machine
+
+Handle 0x0003, DMI type 2, 17 bytes
+Base Board Information
+ Manufacturer: Microsoft Corporation
+ Product Name: Virtual Machine
+ Version: Hyper-V UEFI Release v4.1
+ Serial Number: 0000-0012-2990-9781-5781-3745-53
+ Asset Tag: None
+ Features:
+ Board is a hosting board
+ Location In Chassis: Virtual Machine
+ Chassis Handle: 0x0002
+ Type: Motherboard
+ Contained Object Handles: 0
+
+Handle 0x0004, DMI type 4, 48 bytes
+Processor Information
+ Socket Designation: None
+ Type: Central Processor
+ Family: ARMv8
+ Manufacturer: Ampere(R)
+ ID: 00 00 00 00 00 00 00 00
+ Version: Ampere(R) Altra(R) Processor
+ Voltage: 1.0 V
+ External Clock: 1650 MHz
+ Max Speed: 3000 MHz
+ Current Speed: 3000 MHz
+ Status: Populated, Enabled
+ Upgrade: None
+ L1 Cache Handle: Not Provided
+ L2 Cache Handle: Not Provided
+ L3 Cache Handle: Not Provided
+ Serial Number: None
+ Asset Tag: None
+ Part Number: None
+ Core Count: 2
+ Core Enabled: 2
+ Thread Count: 1
+ Characteristics:
+ 64-bit capable
+ Multi-Core
+ Power/Performance Control
+ 128-bit Capable
+ Arm64 SoC ID
+
+Handle 0x0005, DMI type 11, 5 bytes
+OEM Strings
+ String 1: [MS_VM_CERT/SHA1/9b80ca0d5dd061ec9da4e494f4c3fd1196270c22]
+ String 2: 00000000000000000000000000000000
+ String 3: To be filled by OEM
+
+Handle 0x0006, DMI type 16, 23 bytes
+Physical Memory Array
+ Location: System Board Or Motherboard
+ Use: System Memory
+ Error Correction Type: None
+ Maximum Capacity: 0 bytes
+ Error Information Handle: Not Provided
+ Number Of Devices: 2
+
+Handle 0x0007, DMI type 17, 92 bytes
+Memory Device
+ Array Handle: 0x0006
+ Error Information Handle: Not Provided
+ Total Width: Unknown
+ Data Width: Unknown
+ Size: 1 GB
+ Form Factor: Unknown
+ Set: None
+ Locator: M0001
+ Bank Locator: None
+ Type: Unknown
+ Type Detail: Unknown
+ Speed: Unknown
+ Manufacturer: Microsoft Corporation
+ Serial Number: None
+ Asset Tag: None
+ Part Number: None
+ Rank: Unknown
+ Configured Memory Speed: Unknown
+ Minimum Voltage: Unknown
+ Maximum Voltage: Unknown
+ Configured Voltage: Unknown
+ Memory Technology: <OUT OF SPEC>
+ Memory Operating Mode Capability: None
+ Firmware Version: Not Specified
+ Module Manufacturer ID: Unknown
+ Module Product ID: Unknown
+ Memory Subsystem Controller Manufacturer ID: Unknown
+ Memory Subsystem Controller Product ID: Unknown
+ Non-Volatile Size: None
+ Volatile Size: None
+ Cache Size: None
+ Logical Size: None
+
+Handle 0x0008, DMI type 19, 31 bytes
+Memory Array Mapped Address
+ Starting Address: 0x00000000000
+ Ending Address: 0x000400003FF
+ Range Size: 1 GB
+ Physical Array Handle: 0x0006
+ Partition Width: 0
+
+Handle 0x0009, DMI type 20, 35 bytes
+Memory Device Mapped Address
+ Starting Address: 0x00000000000
+ Ending Address: 0x000400003FF
+ Range Size: 1 GB
+ Physical Device Handle: 0x0007
+ Memory Array Mapped Address Handle: 0x0008
+ Partition Row Position: Unknown
+
+Handle 0x000A, DMI type 17, 92 bytes
+Memory Device
+ Array Handle: 0x0006
+ Error Information Handle: Not Provided
+ Total Width: Unknown
+ Data Width: Unknown
+ Size: 7 GB
+ Form Factor: Unknown
+ Set: None
+ Locator: M0002
+ Bank Locator: None
+ Type: Unknown
+ Type Detail: Unknown
+ Speed: Unknown
+ Manufacturer: Microsoft Corporation
+ Serial Number: None
+ Asset Tag: None
+ Part Number: None
+ Rank: Unknown
+ Configured Memory Speed: Unknown
+ Minimum Voltage: Unknown
+ Maximum Voltage: Unknown
+ Configured Voltage: Unknown
+ Memory Technology: <OUT OF SPEC>
+ Memory Operating Mode Capability: None
+ Firmware Version: Not Specified
+ Module Manufacturer ID: Unknown
+ Module Product ID: Unknown
+ Memory Subsystem Controller Manufacturer ID: Unknown
+ Memory Subsystem Controller Product ID: Unknown
+ Non-Volatile Size: None
+ Volatile Size: None
+ Cache Size: None
+ Logical Size: None
+
+Handle 0x000B, DMI type 19, 31 bytes
+Memory Array Mapped Address
+ Starting Address: 0x00100000000
+ Ending Address: 0x002C00003FF
+ Range Size: 7 GB
+ Physical Array Handle: 0x0006
+ Partition Width: 0
+
+Handle 0x000C, DMI type 20, 35 bytes
+Memory Device Mapped Address
+ Starting Address: 0x00100000000
+ Ending Address: 0x002C00003FF
+ Range Size: 7 GB
+ Physical Device Handle: 0x000A
+ Memory Array Mapped Address Handle: 0x000B
+ Partition Row Position: Unknown
+
+Handle 0x000D, DMI type 32, 11 bytes
+System Boot Information
+ Status: No errors detected
+
+Handle 0xFEFF, DMI type 127, 4 bytes
+End Of Table
+
+EOF
diff --git a/tests/hyperv-arm/sbin/uname b/tests/hyperv-arm/sbin/uname
new file mode 100755
index 000000000..bd33a2d73
--- /dev/null
+++ b/tests/hyperv-arm/sbin/uname
@@ -0,0 +1,2 @@
+#!/bin/sh -
+echo aarch64
diff --git a/tests/hyperv-arm/sbin/virt-what-cpuid-helper b/tests/hyperv-arm/sbin/virt-what-cpuid-helper
new file mode 100755
index 000000000..77a669235
--- /dev/null
+++ b/tests/hyperv-arm/sbin/virt-what-cpuid-helper
@@ -0,0 +1,2 @@
+#!/bin/sh -
+# nothing
diff --git a/tests/hyperv-arm/test.sh b/tests/hyperv-arm/test.sh
new file mode 100755
index 000000000..50fca7431
--- /dev/null
+++ b/tests/hyperv-arm/test.sh
@@ -0,0 +1,32 @@
+# Test for Microsoft HyperV.
+# Copyright (C) 2008-2024 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+output="$(PATH=../..:$PATH virt-what --test-root=. 2>&1)"
+expected="hyperv"
+
+if [ "$output" != "$expected" ]; then
+ echo "$0: test failed because output did not match expected"
+ echo "Expected output was:"
+ echo "----------------------------------------"
+ echo "$expected"
+ echo "----------------------------------------"
+ echo "But the actual output of the program was:"
+ echo "----------------------------------------"
+ echo "$output"
+ echo "----------------------------------------"
+ exit 1
+fi
diff --git a/virt-what.in b/virt-what.in
index 5c5b54b92..77b385f91 100644
--- a/virt-what.in
+++ b/virt-what.in
@@ -1,6 +1,6 @@
#!/bin/sh -
# @configure_input@
-# Copyright (C) 2008-2022 Red Hat Inc.
+# Copyright (C) 2008-2024 Red Hat Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -136,14 +136,22 @@ fi
# http://blogs.msdn.com/b/sqlosteam/archive/2010/10/30/is-this-real-the-metaphysics-of-hardware-virtualization.aspx
if [ "$cpuid" = "Microsoft Hv" ]; then
echo hyperv
+# Hyper-V on ARM doesn't have CPUID. Use the information in dmidecode
+# instead. Note this is similar to VirtualPC below.
+elif echo "$dmi" | grep -q 'Manufacturer: Microsoft Corporation' &&
+ echo "$dmi" | grep -q 'Product Name: Virtual Machine' &&
+ echo "$dmi" | grep -q 'Version: Hyper-V'; then
+ echo hyperv
fi
# Check for VirtualPC.
-# The negative check for cpuid is to distinguish this from Hyper-V
-# which also has the same manufacturer string in the SM-BIOS data.
+# The negative check for cpuid & Hyper-V is to distinguish this from
+# Hyper-V above which also has the same manufacturer string in the
+# SM-BIOS data.
if [ "$cpuid" != "Microsoft Hv" ] &&
echo "$dmi" | grep -q 'Manufacturer: Microsoft Corporation' &&
- echo "$dmi" | grep -q 'Product Name: Virtual Machine'; then
+ echo "$dmi" | grep -q 'Product Name: Virtual Machine' &&
+ ! echo "$dmi" | grep -q 'Version: Hyper-V'; then
echo virtualpc
fi
--
2.43.0
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