From 04b504c47e0dc43c82b0d413a253d0599ce83321 Mon Sep 17 00:00:00 2001
From: Yongkui Guo <yoguo@redhat.com>
Date: Mon, 30 Jan 2023 18:20:32 +0800
Subject: [PATCH] Add support for Alibaba cloud on aarch64
This assumes you are running RHEL or another tenant which supports
ACPI. It probably won't work for guests using device tree.
Also we assume that the hypervisor is KVM. Since the hypervisor
indicates that it is RHEL 7, this is very likely to be true, but hard
to prove since there is no CPUID on Arm.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2165285
(cherry picked from commit 805604762468b754ea60e5dc176fa26f68d211b8)
---
configure.ac | 2 +
tests/alibaba-cloud-arm/Makefile.am | 28 +++++
tests/alibaba-cloud-arm/proc/cpuinfo | 18 +++
tests/alibaba-cloud-arm/proc/self/status | 57 +++++++++
tests/alibaba-cloud-arm/sbin/dmidecode | 116 ++++++++++++++++++
tests/alibaba-cloud-arm/sbin/uname | 2 +
.../sbin/virt-what-cpuid-helper | 3 +
tests/alibaba-cloud-arm/test.sh | 33 +++++
virt-what.in | 5 +
9 files changed, 264 insertions(+)
create mode 100644 tests/alibaba-cloud-arm/Makefile.am
create mode 100644 tests/alibaba-cloud-arm/proc/cpuinfo
create mode 100644 tests/alibaba-cloud-arm/proc/self/status
create mode 100755 tests/alibaba-cloud-arm/sbin/dmidecode
create mode 100755 tests/alibaba-cloud-arm/sbin/uname
create mode 100755 tests/alibaba-cloud-arm/sbin/virt-what-cpuid-helper
create mode 100755 tests/alibaba-cloud-arm/test.sh
diff --git a/configure.ac b/configure.ac
index a80a4b6f0..cfb7ca371 100644
--- a/configure.ac
+++ b/configure.ac
@@ -34,6 +34,7 @@ AM_CONDITIONAL([HOST_CPU_IA64], [ test "x$host_cpu" = "xia64" ])
dnl List of tests.
tests="\
+ alibaba-cloud-arm \
alibaba-cloud-x86 \
aws-baremetal-x86 \
aws-kvm-arm \
@@ -83,6 +84,7 @@ AC_CONFIG_HEADERS([config.h])
AC_CONFIG_FILES([virt-what],[chmod +x virt-what])
AC_CONFIG_FILES([Makefile
tests/Makefile
+ tests/alibaba-cloud-arm/Makefile
tests/alibaba-cloud-x86/Makefile
tests/aws-baremetal-x86/Makefile
tests/aws-kvm-arm/Makefile
diff --git a/tests/alibaba-cloud-arm/Makefile.am b/tests/alibaba-cloud-arm/Makefile.am
new file mode 100644
index 000000000..09ce07861
--- /dev/null
+++ b/tests/alibaba-cloud-arm/Makefile.am
@@ -0,0 +1,28 @@
+# Makefile for virt-what
+# Copyright (C) 2008-2023 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/alibaba-cloud-arm/proc/cpuinfo b/tests/alibaba-cloud-arm/proc/cpuinfo
new file mode 100644
index 000000000..03dbb22ab
--- /dev/null
+++ b/tests/alibaba-cloud-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 ssbs
+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 ssbs
+CPU implementer : 0x41
+CPU architecture: 8
+CPU variant : 0x3
+CPU part : 0xd0c
+CPU revision : 1
+
diff --git a/tests/alibaba-cloud-arm/proc/self/status b/tests/alibaba-cloud-arm/proc/self/status
new file mode 100644
index 000000000..08c63e9cb
--- /dev/null
+++ b/tests/alibaba-cloud-arm/proc/self/status
@@ -0,0 +1,57 @@
+Name: cat
+Umask: 0022
+State: R (running)
+Tgid: 6341
+Ngid: 0
+Pid: 6341
+PPid: 1588
+TracerPid: 0
+Uid: 0 0 0 0
+Gid: 0 0 0 0
+FDSize: 256
+Groups: 0
+NStgid: 6341
+NSpid: 6341
+NSpgid: 6341
+NSsid: 1588
+VmPeak: 2352 kB
+VmSize: 2352 kB
+VmLck: 0 kB
+VmPin: 0 kB
+VmHWM: 768 kB
+VmRSS: 768 kB
+RssAnon: 80 kB
+RssFile: 688 kB
+RssShmem: 0 kB
+VmData: 348 kB
+VmStk: 132 kB
+VmExe: 24 kB
+VmLib: 1728 kB
+VmPTE: 44 kB
+VmSwap: 0 kB
+HugetlbPages: 0 kB
+CoreDumping: 0
+THP_enabled: 1
+Threads: 1
+SigQ: 0/29002
+SigPnd: 0000000000000000
+ShdPnd: 0000000000000000
+SigBlk: 0000000000000000
+SigIgn: 0000000000000000
+SigCgt: 0000000000000000
+CapInh: 0000000000000000
+CapPrm: 000001ffffffffff
+CapEff: 000001ffffffffff
+CapBnd: 000001ffffffffff
+CapAmb: 0000000000000000
+NoNewPrivs: 0
+Seccomp: 0
+Seccomp_filters: 0
+Speculation_Store_Bypass: thread 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/alibaba-cloud-arm/sbin/dmidecode b/tests/alibaba-cloud-arm/sbin/dmidecode
new file mode 100755
index 000000000..89fa9a34b
--- /dev/null
+++ b/tests/alibaba-cloud-arm/sbin/dmidecode
@@ -0,0 +1,116 @@
+#!/bin/sh -
+cat <<'EOF'
+# dmidecode 3.3
+Getting SMBIOS data from sysfs.
+SMBIOS 3.0.0 present.
+Table at 0x2348C0000.
+
+Handle 0x0100, DMI type 1, 27 bytes
+System Information
+ Manufacturer: Alibaba Cloud
+ Product Name: Alibaba Cloud ECS
+ Version: virt-rhel7.6.0
+ Serial Number: 8c43355a-242e-42c2-bdf7-9fae99316221
+ UUID: 8c43355a-242e-42c2-bdf7-9fae99316221
+ Wake-up Type: Power Switch
+ SKU Number: Not Specified
+ Family: Red Hat Enterprise Linux
+
+Handle 0x0300, DMI type 3, 21 bytes
+Chassis Information
+ Manufacturer: Alibaba Cloud
+ Type: Other
+ Lock: Not Present
+ Version: virt-rhel7.6.0
+ Serial Number: Not Specified
+ Asset Tag: Not Specified
+ 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
+
+Handle 0x0400, DMI type 4, 42 bytes
+Processor Information
+ Socket Designation: CPU 0
+ Type: Central Processor
+ Family: Other
+ Manufacturer: Alibaba Cloud
+ ID: 00 00 00 00 00 00 00 00
+ Version: virt-rhel7.6.0
+ Voltage: Unknown
+ External Clock: Unknown
+ Max Speed: 2000 MHz
+ Current Speed: 2000 MHz
+ Status: Populated, Enabled
+ Upgrade: Other
+ L1 Cache Handle: Not Provided
+ L2 Cache Handle: Not Provided
+ L3 Cache Handle: Not Provided
+ Serial Number: Not Specified
+ Asset Tag: Not Specified
+ Part Number: Not Specified
+ Core Count: 2
+ Core Enabled: 2
+ Thread Count: 1
+ Characteristics: None
+
+Handle 0x1000, DMI type 16, 23 bytes
+Physical Memory Array
+ Location: Other
+ Use: System Memory
+ Error Correction Type: Multi-bit ECC
+ Maximum Capacity: 8 GB
+ Error Information Handle: Not Provided
+ Number Of Devices: 1
+
+Handle 0x1100, DMI type 17, 40 bytes
+Memory Device
+ Array Handle: 0x1000
+ Error Information Handle: Not Provided
+ Total Width: Unknown
+ Data Width: Unknown
+ Size: 8 GB
+ Form Factor: DIMM
+ Set: None
+ Locator: DIMM 0
+ Bank Locator: Not Specified
+ Type: RAM
+ Type Detail: Other
+ Speed: Unknown
+ Manufacturer: Alibaba Cloud
+ Serial Number: Not Specified
+ Asset Tag: Not Specified
+ Part Number: Not Specified
+ Rank: Unknown
+ Configured Memory Speed: Unknown
+ Minimum Voltage: Unknown
+ Maximum Voltage: Unknown
+ Configured Voltage: Unknown
+
+Handle 0x2000, DMI type 32, 11 bytes
+System Boot Information
+ Status: No errors detected
+
+Handle 0x0000, DMI type 0, 26 bytes
+BIOS Information
+ Vendor: EFI Development Kit II / OVMF
+ Version: 0.0.0
+ Release Date: 02/06/2015
+ Address: 0xE8000
+ Runtime Size: 96 kB
+ ROM Size: 64 kB
+ Characteristics:
+ BIOS characteristics not supported
+ Targeted content distribution is supported
+ UEFI is supported
+ System is a virtual machine
+ BIOS Revision: 0.0
+
+Handle 0xFEFF, DMI type 127, 4 bytes
+End Of Table
+
+EOF
diff --git a/tests/alibaba-cloud-arm/sbin/uname b/tests/alibaba-cloud-arm/sbin/uname
new file mode 100755
index 000000000..bd33a2d73
--- /dev/null
+++ b/tests/alibaba-cloud-arm/sbin/uname
@@ -0,0 +1,2 @@
+#!/bin/sh -
+echo aarch64
diff --git a/tests/alibaba-cloud-arm/sbin/virt-what-cpuid-helper b/tests/alibaba-cloud-arm/sbin/virt-what-cpuid-helper
new file mode 100755
index 000000000..08e293436
--- /dev/null
+++ b/tests/alibaba-cloud-arm/sbin/virt-what-cpuid-helper
@@ -0,0 +1,3 @@
+#!/bin/sh -
+# Arm, so no cpuid.
+# No output, exits with 0.
diff --git a/tests/alibaba-cloud-arm/test.sh b/tests/alibaba-cloud-arm/test.sh
new file mode 100755
index 000000000..1e7360931
--- /dev/null
+++ b/tests/alibaba-cloud-arm/test.sh
@@ -0,0 +1,33 @@
+# Test for Alibaba Cloud
+# Copyright (C) 2018-2023 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=../..:$PATH virt-what --test-root=. 2>&1)"
+expected="alibaba_cloud
+kvm"
+
+if [ "$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 "$output"
+ echo "----------------------------------------"
+ exit 1
+fi
diff --git a/virt-what.in b/virt-what.in
index 102e23f67..fbf8c54c5 100644
--- a/virt-what.in
+++ b/virt-what.in
@@ -354,6 +354,11 @@ if ! "$skip_qemu_kvm"; then
# This is for AWS Graviton (Arm) systems which don't have CPUID.
echo kvm
skip_lkvm=true
+ elif echo "$dmi" | grep -q 'Manufacturer: Alibaba Cloud' &&
+ echo "$dmi" | grep -q 'System is a virtual machine'; then
+ # This is for Alibaba Arm systems which don't have CPUID.
+ echo kvm
+ skip_lkvm=true
elif echo "$dmi" | grep -q 'Manufacturer: QEMU'; then
# The test for KVM above failed, so now we know we're
# not using KVM acceleration.
--
2.31.1