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KVM: VMX: Make flexpriority module parameter reflect hardware capability

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If the hardware does not support flexpriority, zero the module parameter.

Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity
2009-03-24 14:27:47 +02:00
parent 78646121e9
commit 7d433b9f94
1 changed files with 4 additions and 3 deletions
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7
arch/x86/kvm/vmx.c
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@@ -237,9 +237,7 @@ static inline int cpu_has_secondary_exec_ctrls(void)
static inline bool cpu_has_vmx_virtualize_apic_accesses(void) static inline bool cpu_has_vmx_virtualize_apic_accesses(void)
{ {
return flexpriority_enabled return flexpriority_enabled;
&& (vmcs_config.cpu_based_2nd_exec_ctrl &
SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES);
} }
static inline int cpu_has_vmx_invept_individual_addr(void) static inline int cpu_has_vmx_invept_individual_addr(void)
@@ -1203,6 +1201,9 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
if (!cpu_has_vmx_ept()) if (!cpu_has_vmx_ept())
enable_ept = 0; enable_ept = 0;
if (!(vmcs_config.cpu_based_2nd_exec_ctrl & SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES))
flexpriority_enabled = 0;
min = 0; min = 0;
#ifdef CONFIG_X86_64 #ifdef CONFIG_X86_64
min |= VM_EXIT_HOST_ADDR_SPACE_SIZE; min |= VM_EXIT_HOST_ADDR_SPACE_SIZE;