From: liang yan <liangy@hpe.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] Could not boot a guest vm from kvm mode based on APM X-Gene Host and latest qemu
Date: Mon, 14 Sep 2015 18:03:48 -0600 [thread overview]
Message-ID: <55F76064.8010504@hpe.com> (raw)
Hello, All,
I am trying to enable kvm for a guest vm on an APM X-Gene Host with
latest qemu, but could not make it work.
The host is APM X-Gene 8-core, Linux kernel is 4.1.0-rc7-1-arm64,
Guest kernel is linux-3.16rc3
QEMU is latest version
Host has these dmesg info
[ 2.708259] kvm [1]: GICH base=0x780c0000, GICV base=0x780e0000, IRQ=25
[ 2.708327] kvm [1]: timer IRQ30
[ 2.708335] kvm [1]: Hyp mode initialized successfully
Host has dev/kvm.
command-line is
aarch64-softmmu/qemu-system-aarch64 -machine virt,kernel_irqchip=off
-cpu cortex-a57 -machine accel=kvm -nographic -smp 1 -m 2048 -kernel
aarch64-linux-3.16rc3-buildroot.img --append "console=ttyAMA0"
when using cpu "cortex-a57", got the error "kvm_init_vcpu failed:
Invalid argument"
when using cpu "host", got the error "Failed to retrieve host CPU features!"
By the way, all the command line works well under "tcg" mode.
Anyone has a quick idea? Thanks in advance.
Best,
Liang
next reply other threads:[~2015-09-15 0:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-15 0:03 liang yan [this message]
2015-09-16 9:24 ` [Qemu-devel] Could not boot a guest vm from kvm mode based on APM X-Gene Host and latest qemu Tushar Jagad
2015-09-16 23:32 ` liang yan
2015-09-16 9:55 ` Peter Maydell
2015-09-16 14:34 ` Alex Bennée
2015-09-16 15:29 ` Marc Zyngier
2015-09-16 17:33 ` Marc Zyngier
2015-09-17 0:02 ` liang yan
2015-09-17 7:44 ` Alex Bennée
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