Though tpr shadow feature can be used on i386 host, but it needs support from virtual apic access feature which hasn't been implemented yet, otherwise it will cause trouble on i386 machine which supports this feature.
This patch disables tpr shadow feature for i386 host now.
Signed-off-by: Sheng Yang <[EMAIL PROTECTED]>
Signed-off-by: Qing He <[EMAIL PROTECTED]>
---
drivers/kvm/vmx.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index 49ac609..c44c9ac 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -902,7 +902,11 @@ static __init int setup_vmcs_config(struct
vmcs_config *vmcs_conf)
CPU_BASED_USE_IO_BITMAPS |
CPU_BASED_MOV_DR_EXITING |
CPU_BASED_USE_TSC_OFFSETING;
+#ifdef CONFIG_X86_64
opt = CPU_BASED_TPR_SHADOW;
+#else
+ opt = 0;
+#endif
if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_PROCBASED_CTLS,
&_cpu_based_exec_control) < 0)
return -EIO;
--
1.5.2
0001-Prevent-setting-CPU_BASED_TPR_SHADOW-on-i386-host.patch
Description: 0001-Prevent-setting-CPU_BASED_TPR_SHADOW-on-i386-host.patch
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