From: Chris <chris.kuethe+launchpad@gmail.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [Bug 1722074] Re: warning: host doesn't support requested feature: CPUID.01H:ECX.vmx
Date: Wed, 23 May 2018 21:16:30 -0000 [thread overview]
Message-ID: <152711019088.26992.47431498318287746.malone@gac.canonical.com> (raw)
In-Reply-To: 150746661053.7454.6898170418757179619.malonedeb@wampee.canonical.com
Also reproducible
$ qemu-system-x86_64 --version
QEMU emulator version 2.11.1(Debian 1:2.11+dfsg-1ubuntu7.2)
Copyright (c) 2003-2017 Fabrice Bellard and the QEMU Project developers
$ uname -a
Linux ryzen 4.16.11-041611-generic #201805221331 SMP Tue May 22 17:34:25 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
$ head -28 /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 23
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
stepping : 2
microcode : 0x8008204
cpu MHz : 2161.008
cache size : 512 KB
physical id : 0
siblings : 16
core id : 0
cpu cores : 8
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx hw_pstate sme ssbd sev ibpb vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1 xsaves clzero irperf xsaveerptr arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif overflow_recov succor smca
bugs : sysret_ss_attrs null_seg spectre_v1 spectre_v2 spec_store_bypass
bogomips : 7399.25
TLB size : 2560 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 43 bits physical, 48 bits virtual
power management: ts ttp tm hwpstate eff_freq_ro [13] [14]
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https://bugs.launchpad.net/bugs/1722074
Title:
warning: host doesn't support requested feature: CPUID.01H:ECX.vmx
Status in QEMU:
New
Bug description:
I encountered the bug today (when using qemu to boot up images - which used to work on my Intel CPU box):
warning: host doesn't support requested feature: CPUID.01H:ECX.vmx
The bug is a show-stopper - I completely cannot load my kernel images
at all.
My Ubuntu have this version of QEMU installed:
qemu-system-x86_64 --version
QEMU emulator version 2.5.0 (Debian 1:2.5+dfsg-5ubuntu10.16),
Copyright (c) 2003-2008 Fabrice Bellard
And PC is a AMD Ryzen7 CPU built, and this is the first time I am
using it to load QEMU images. My host information:
cat /proc/cpuinfo |more
processor : 0
vendor_id : AuthenticAMD
cpu family : 23
model : 1
model name : AMD Ryzen 7 1700X Eight-Core Processor
stepping : 1
microcode : 0x800110e
cpu MHz : 2200.000
cache size : 512 KB
physical id : 0
siblings : 16
core id : 0
cpu cores : 8
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp
lm constant_tsc rep_good nopl nonstop_tsc extd_apicid aperfmperf pni pclmulqdq
monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf
_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw s
kinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_l2 mwaitx hw_pstate
vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt
xsavec xgetbv1 xsaves clzero irperf arat npt lbrv svm_lock nrip_save tsc_scale v
mcb_clean flushbyasid decodeassists pausefilter pfthreshold avic overflow_recov
succor smca
bugs : fxsave_leak sysret_ss_attrs null_seg
bogomips : 6787.24
TLB size : 2560 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm hwpstate eff_freq_ro [13] [14]
processor : 1
vendor_id : AuthenticAMD
cpu family : 23
model : 1
model name : AMD Ryzen 7 1700X Eight-Core Processor
stepping : 1
microcode : 0x800110e
cpu MHz : 2200.000
cache size : 512 KB
From other places, it can be seen that this is an AMD CPU issue:
https://www.virtualmin.com/node/52227
not sure?
The bug will also affect the host negatively: it will completely go
into a hung mode - the entire host becomes completely unsable.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1722074/+subscriptions
next prev parent reply other threads:[~2018-05-23 21:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-08 12:43 [Qemu-devel] [Bug 1722074] [NEW] warning: host doesn't support requested feature: CPUID.01H:ECX.vmx htmldeveloper
2017-10-08 12:53 ` [Qemu-devel] [Bug 1722074] " htmldeveloper
2018-05-23 21:16 ` Chris [this message]
2018-05-24 5:07 ` Christian Ehrhardt
2018-05-24 5:13 ` Christian Ehrhardt
2018-05-24 5:17 ` Christian Ehrhardt
2019-06-15 4:17 ` Ken Sharp
2019-06-17 5:43 ` Christian Ehrhardt
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