From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Thu, 18 Sep 2014 21:24:57 +0000 (-0300)
Subject: KVM: nested VMX: disable perf cpuid reporting
X-Git-Tag: fixes-for-v3.18-merge-window~23^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bc6134942dbbf31c25e9bd7c876be5da81c9e1ce;p=pandora-kernel.git

KVM: nested VMX: disable perf cpuid reporting

Initilization of L2 guest with -cpu host, on L1 guest with -cpu host
triggers:

(qemu) KVM: entry failed, hardware error 0x7
...
nested_vmx_run: VMCS MSR_{LOAD,STORE} unsupported

Nested VMX MSR load/store support is not sufficient to
allow perf for L2 guest.

Until properly fixed, trap CPUID and disable function 0xA.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

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