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kvm: vmx: fix oops with explicit flexpriority=0 option 

A function pointer was not NULLed, causing kvm_vcpu_reload_apic_access_page to
go down the wrong path and OOPS when doing put_page(NULL).

This did not happen on old processors, only when setting the module option
explicitly.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2015-01-30 16:18:49 +01:00
parent 8a395363e2
commit ad15a29647
1 changed files with 7 additions and 7 deletions
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14
arch/x86/kvm/vmx.c
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@ -5879,16 +5879,16 @@ static __init int hardware_setup(void)
if (!cpu_has_vmx_unrestricted_guest())
enable_unrestricted_guest = 0;
if (!cpu_has_vmx_flexpriority()) {
if (!cpu_has_vmx_flexpriority())
flexpriority_enabled = 0;
/*
* set_apic_access_page_addr() is used to reload apic access
* page upon invalidation. No need to do anything if the
* processor does not have the APIC_ACCESS_ADDR VMCS field.
*/
/*
* set_apic_access_page_addr() is used to reload apic access
* page upon invalidation. No need to do anything if not
* using the APIC_ACCESS_ADDR VMCS field.
*/
if (!flexpriority_enabled)
kvm_x86_ops->set_apic_access_page_addr = NULL;
}
if (!cpu_has_vmx_tpr_shadow())
kvm_x86_ops->update_cr8_intercept = NULL;