| Summary: | Warning occur when emulate AMD CPU by cmd "/usr/libexec/qemu-kvm -cpu host" | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | aihua liang <aliang> |
| Component: | qemu-kvm-rhev | Assignee: | Radim Krčmář <rkrcmar> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 7.3 | CC: | aliang, hhuang, juzhang, meyang, mrezanin, ngu, pingl, shuang, virt-maint, wei, xutian |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | qemu-kvm-rhev-2.6.0-1.el7 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2017-06-13 04:00:51 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
Patch posted upstream, http://lists.nongnu.org/archive/html/qemu-devel/2016-04/msg02597.html This bug has been fixed patch 9997cf7bdac0 ("target-i386: Set AMD alias bits after filtering CPUID data") that was included in rebase to QEMU 2.6.
Aihua, Could you help to verify the bug after the fix? Then we can set the bug status to be verified. Thanks! Nini (In reply to Gu Nini from comment #4) > Aihua, > > Could you help to verify the bug after the fix? Then we can set the bug > status to be verified. > > Thanks! > Nini Nini, Will reply next week for no resource now... aliang Has verified, the problem has been resolved, so please update its status.. Verified Environment: kernel version:3.10.0-475.el7.x86_64 qemu-kvm-rhev version:qemu-kvm-rhev-2.6.0-11.el7.x86_64 seabios version:seabios-1.9.1-4.el7.x86_64 Verified CMDs: /usr/libexec/qemu-kvm \ -name rhel7.1-4 \ -machine pc \ -cpu host \ -m 4096 \ -smp 1,sockets=1 \ -uuid 1534fa42-4818-4493-9f67-eee5ba758385 \ -no-user-config -nodefaults \ -chardev socket,id=qmp_id_catch_monitor,path=/var/tmp/test1,server,nowait \ -mon chardev=qmp_id_catch_monitor,id=monitor,mode=control \ -boot menu=on,splash-time=12000 \ -device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x5 \ -drive file=/home/se_test.qcow2,if=none,id=drive-ide0-0-0,format=qcow2,aio=threads \ -device scsi-hd,bus=scsi0.0,drive=drive-ide0-0-0,id=scsi0-0-1,bootindex=1 \ -enable-kvm \ -vga qxl \ -vnc 0:2 \ -monitor stdio \ |
Description of problem: When emulate AMD CPU via qemu-kvm param "-cpu host", warning occur. When set param "-cpu Opteron_G3",qemu-kvm works well. Version-Release number of selected component (if applicable): host kernel:3.10.0-371.el7.x86_64 qemu-kvm version:qemu-kvm-rhev-2.5.0-4.el7 seabios version:seabios-1.9.1-2.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1.Start VM by following cmd: /usr/libexec/qemu-kvm -name rhel7.1-4 \ -machine pc \ -cpu host \ -m 4096 \ -smp 1,sockets=1 \ -uuid 1534fa42-4818-4493-9f67-eee5ba758385 \ -no-user-config -nodefaults \ -chardev socket,id=qmp_id_catch_monitor,path=/var/tmp/test1,server,nowait \ -mon chardev=qmp_id_catch_monitor,id=monitor,mode=control \ -boot menu=on,splash-time=12000 \ -device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x5 \ -drive file=/home/target1.qcow2,if=none,id=drive-ide0-0-0,format=qcow2,aio=threads \ -device scsi-hd,bus=scsi0.0,drive=drive-ide0-0-0,id=scsi0-0-1,bootindex=1 \ -enable-kvm \ -spice port=3008,ipv4,disable-ticketing \ -vga qxl \ -vnc 0:2 \ -monitor stdio Actual results: 1. VM Started with warnings: warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 1] warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 2] warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 3] warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 4] warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 5] warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 6] warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 7] warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 8] warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 9] warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 12] warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 13] warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 14] warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 15] warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 16] warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 17] warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 23] warning: host doesn't support requested feature: CPUID.80000001H:EDX [bit 24] 2. Check Host CPU info: #lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 64 On-line CPU(s) list: 0-63 Thread(s) per core: 2 Core(s) per socket: 8 座： 4 NUMA 节点： 8 厂商 ID： AuthenticAMD CPU 系列： 21 型号： 2 型号名称： AMD Opteron(tm) Processor 6376 步进： 0 CPU MHz： 2294.286 BogoMIPS： 4588.00 虚拟化： AMD-V L1d 缓存： 16K L1i 缓存： 64K L2 缓存： 2048K L3 缓存： 6144K NUMA 节点0 CPU： 0,4,8,12,16,20,24,28 NUMA 节点1 CPU： 32,36,40,44,48,52,56,60 NUMA 节点2 CPU： 1,5,9,13,17,21,25,29 NUMA 节点3 CPU： 33,37,41,45,49,53,57,61 NUMA 节点4 CPU： 2,6,10,14,18,22,26,30 NUMA 节点5 CPU： 34,38,42,46,50,54,58,62 NUMA 节点6 CPU： 35,39,43,47,51,55,59,63 NUMA 节点7 CPU： 3,7,11,15,19,23,27,31 Summary:qemu-kvm can't translate param "-cpu host" to the correct AMD CPU. Expected results: Qemu-kvm can emulate AMD CPU via param "-cpu host" correctly. Additional info: