From 8528efafcad59f0fde7e15860f19061c3af810fa Mon Sep 17 00:00:00 2001 From: Andrew Jones Date: Tue, 27 Oct 2015 18:16:04 +0100 Subject: [PATCH] qemu/kvm: dmidecode: look for 'KVM' We can check the product name for 'KVM' to determine if we're accelerated. This only works for arm/aarch64 targets boot with AAVMF and on RHEL x86 targets (which already have KVM in the cpuid leaf), but it doesn't hurt to try on all. --- Makefile.am | 6 + tests/qemu-smbios-kvm/proc/cpuinfo | 63 ++++++++++ tests/qemu-smbios-kvm/proc/self/status | 41 +++++++ tests/qemu-smbios-kvm/sbin/dmidecode | 141 ++++++++++++++++++++++ tests/qemu-smbios-kvm/sbin/uname | 2 + tests/qemu-smbios-kvm/sbin/virt-what-cpuid-helper | 2 + tests/test-qemu-smbios-kvm.sh | 34 ++++++ virt-what.in | 7 +- 8 files changed, 294 insertions(+), 2 deletions(-) create mode 100644 tests/qemu-smbios-kvm/proc/cpuinfo create mode 100644 tests/qemu-smbios-kvm/proc/self/status create mode 100755 tests/qemu-smbios-kvm/sbin/dmidecode create mode 100755 tests/qemu-smbios-kvm/sbin/uname create mode 100755 tests/qemu-smbios-kvm/sbin/virt-what-cpuid-helper create mode 100755 tests/test-qemu-smbios-kvm.sh diff --git a/Makefile.am b/Makefile.am index 0045bcb..7d87ec1 100644 --- a/Makefile.am +++ b/Makefile.am @@ -54,6 +54,7 @@ TESTS = \ tests/test-qemu.sh \ tests/test-qemu-arm.sh \ tests/test-qemu-smbios.sh \ + tests/test-qemu-smbios-kvm.sh \ tests/test-rhel5-xen-dom0.sh \ tests/test-rhel5-xen-domU-hvm.sh \ tests/test-rhel5-xen-domU-hvm-ia64.sh \ @@ -143,6 +144,11 @@ EXTRA_DIST = \ tests/qemu-smbios/sbin/dmidecode \ tests/qemu-smbios/sbin/uname \ tests/qemu-smbios/sbin/virt-what-cpuid-helper \ + tests/qemu-smbios-kvm/proc/cpuinfo \ + tests/qemu-smbios-kvm/proc/self/status \ + tests/qemu-smbios-kvm/sbin/dmidecode \ + tests/qemu-smbios-kvm/sbin/uname \ + tests/qemu-smbios-kvm/sbin/virt-what-cpuid-helper \ tests/rhel5-xen-dom0/proc/cpuinfo \ tests/rhel5-xen-dom0/proc/self/status \ tests/rhel5-xen-dom0/proc/xen/balloon \ diff --git a/tests/qemu-smbios-kvm/proc/cpuinfo b/tests/qemu-smbios-kvm/proc/cpuinfo new file mode 100644 index 0000000..b83a182 --- /dev/null +++ b/tests/qemu-smbios-kvm/proc/cpuinfo @@ -0,0 +1,63 @@ +processor : 0 +Features : fp asimd evtstrm +CPU implementer : 0x50 +CPU architecture: 8 +CPU variant : 0x0 +CPU part : 0x000 +CPU revision : 0 + +processor : 1 +Features : fp asimd evtstrm +CPU implementer : 0x50 +CPU architecture: 8 +CPU variant : 0x0 +CPU part : 0x000 +CPU revision : 0 + +processor : 2 +Features : fp asimd evtstrm +CPU implementer : 0x50 +CPU architecture: 8 +CPU variant : 0x0 +CPU part : 0x000 +CPU revision : 0 + +processor : 3 +Features : fp asimd evtstrm +CPU implementer : 0x50 +CPU architecture: 8 +CPU variant : 0x0 +CPU part : 0x000 +CPU revision : 0 + +processor : 4 +Features : fp asimd evtstrm +CPU implementer : 0x50 +CPU architecture: 8 +CPU variant : 0x0 +CPU part : 0x000 +CPU revision : 0 + +processor : 5 +Features : fp asimd evtstrm +CPU implementer : 0x50 +CPU architecture: 8 +CPU variant : 0x0 +CPU part : 0x000 +CPU revision : 0 + +processor : 6 +Features : fp asimd evtstrm +CPU implementer : 0x50 +CPU architecture: 8 +CPU variant : 0x0 +CPU part : 0x000 +CPU revision : 0 + +processor : 7 +Features : fp asimd evtstrm +CPU implementer : 0x50 +CPU architecture: 8 +CPU variant : 0x0 +CPU part : 0x000 +CPU revision : 0 diff --git a/tests/qemu-smbios-kvm/proc/self/status b/tests/qemu-smbios-kvm/proc/self/status new file mode 100644 index 0000000..751f5e7 --- /dev/null +++ b/tests/qemu-smbios-kvm/proc/self/status @@ -0,0 +1,41 @@ +Name: cat +State: R (running) +Tgid: 8307 +Ngid: 0 +Pid: 8307 +PPid: 1415 +TracerPid: 0 +Uid: 0 0 0 0 +Gid: 0 0 0 0 +FDSize: 256 +Groups: +VmPeak: 109696 kB +VmSize: 109696 kB +VmLck: 0 kB +VmPin: 0 kB +VmHWM: 832 kB +VmRSS: 832 kB +VmData: 320 kB +VmStk: 256 kB +VmExe: 64 kB +VmLib: 1536 kB +VmPTE: 192 kB +VmSwap: 0 kB +Threads: 1 +SigQ: 0/5821 +SigPnd: 0000000000000000 +ShdPnd: 0000000000000000 +SigBlk: 0000000000000000 +SigIgn: 0000000000000000 +SigCgt: 0000000000000000 +CapInh: 0000000000000000 +CapPrm: 0000003fffffffff +CapEff: 0000003fffffffff +CapBnd: 0000003fffffffff +Seccomp: 0 +Cpus_allowed: ff +Cpus_allowed_list: 0-7 +Mems_allowed: 1 +Mems_allowed_list: 0 +voluntary_ctxt_switches: 1 +nonvoluntary_ctxt_switches: 1 diff --git a/tests/qemu-smbios-kvm/sbin/dmidecode b/tests/qemu-smbios-kvm/sbin/dmidecode new file mode 100755 index 0000000..a2caabb --- /dev/null +++ b/tests/qemu-smbios-kvm/sbin/dmidecode @@ -0,0 +1,141 @@ +#!/bin/sh - +cat <<'EOF' +# dmidecode 3.0 +Getting SMBIOS data from sysfs. +SMBIOS 3.0.0 present. +Table at 0x136650000. + +Handle 0x0100, DMI type 1, 27 bytes +System Information + Manufacturer: QEMU + Product Name: KVM Virtual Machine + Version: 1.0 + Serial Number: Not Specified + UUID: 6EB70381-DF9C-4407-B6AB-9FA4452117EA + Wake-up Type: Power Switch + SKU Number: Not Specified + Family: Red Hat Enterprise Linux + +Handle 0x0300, DMI type 3, 21 bytes +Chassis Information + Manufacturer: QEMU + Type: Other + Lock: Not Present + Version: 1.0 + 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: QEMU + ID: 00 00 00 00 00 00 00 00 + Version: 1.0 + 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: 1 + Core Enabled: 1 + Thread Count: 1 + Characteristics: None + +Handle 0x0401, DMI type 4, 42 bytes +Processor Information + Socket Designation: CPU 1 + Type: Central Processor + Family: Other + Manufacturer: QEMU + ID: 00 00 00 00 00 00 00 00 + Version: 1.0 + 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: 1 + Core Enabled: 1 + 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: 4 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: 4096 MB + Form Factor: DIMM + Set: None + Locator: DIMM 0 + Bank Locator: Not Specified + Type: RAM + Type Detail: Other + Speed: Unknown + Manufacturer: QEMU + Serial Number: Not Specified + Asset Tag: Not Specified + Part Number: Not Specified + Rank: Unknown + Configured Clock 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, 24 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/qemu-smbios-kvm/sbin/uname b/tests/qemu-smbios-kvm/sbin/uname new file mode 100755 index 0000000..bd33a2d --- /dev/null +++ b/tests/qemu-smbios-kvm/sbin/uname @@ -0,0 +1,2 @@ +#!/bin/sh - +echo aarch64 diff --git a/tests/qemu-smbios-kvm/sbin/virt-what-cpuid-helper b/tests/qemu-smbios-kvm/sbin/virt-what-cpuid-helper new file mode 100755 index 0000000..77a6692 --- /dev/null +++ b/tests/qemu-smbios-kvm/sbin/virt-what-cpuid-helper @@ -0,0 +1,2 @@ +#!/bin/sh - +# nothing diff --git a/tests/test-qemu-smbios-kvm.sh b/tests/test-qemu-smbios-kvm.sh new file mode 100755 index 0000000..f4d8e38 --- /dev/null +++ b/tests/test-qemu-smbios-kvm.sh @@ -0,0 +1,34 @@ +# Test for qemu on ARM +# Copyright (C) 2015 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. + +root=tests/qemu-smbios-kvm + +output="$(./virt-what --test-root=$root 2>&1)" +expected="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 "$output" + echo "----------------------------------------" + exit 1 +fi diff --git a/virt-what.in b/virt-what.in index 355e438..776bfde 100644 --- a/virt-what.in +++ b/virt-what.in @@ -262,9 +262,12 @@ fi if ! "$skip_qemu_kvm"; then if [ "$cpuid" = "KVMKVMKVM" ]; then echo kvm + elif echo "$dmi" | grep -q 'Product Name: KVM'; then + echo kvm + skip_lkvm=true elif echo "$dmi" | grep -q 'Manufacturer: QEMU'; then - # We don't have enough information to determine if we're - # using KVM acceleration or not. + # The test for KVM above failed, so now we know we're + # not using KVM acceleration. echo qemu skip_lkvm=true elif [ "$arch" = "arm" ] || [ "$arch" = "aarch64" ]; then -- 1.8.3.1