Commit bafddc70 authored by Sean Christopherson's avatar Sean Christopherson
Browse files

KVM: VMX: Move enable_ipiv knob to common x86 

Move enable_ipiv to common x86 so that it can be reused by SVM to control
IPI virtualization when AVIC is enabled.  SVM doesn't actually provide a
way to truly disable IPI virtualization, but KVM can get close enough by
skipping the necessary table programming.

Link: https://lore.kernel.org/r/20250611224604.313496-18-seanjc@google.com


Signed-off-by: default avatarSean Christopherson <seanjc@google.com>
parent d2943333

arch/x86/include/asm/kvm_host.h

+1 −0
Original line number Diff line number Diff line
@@ -1951,6 +1951,7 @@ struct kvm_arch_async_pf { 
extern u32 __read_mostly kvm_nr_uret_msrs;

extern bool __read_mostly allow_smaller_maxphyaddr;

extern bool __read_mostly enable_apicv;

extern bool __read_mostly enable_ipiv;

extern bool __read_mostly enable_device_posted_irqs;

extern struct kvm_x86_ops kvm_x86_ops;

arch/x86/kvm/vmx/capabilities.h

+0 −1
Original line number Diff line number Diff line
@@ -15,7 +15,6 @@ extern bool __read_mostly enable_ept; 
extern bool __read_mostly enable_unrestricted_guest;

extern bool __read_mostly enable_ept_ad_bits;

extern bool __read_mostly enable_pml;

extern bool __read_mostly enable_ipiv;

extern int __read_mostly pt_mode;



#define PT_MODE_SYSTEM		0

arch/x86/kvm/vmx/vmx.c

+0 −2
Original line number Diff line number Diff line
@@ -113,8 +113,6 @@ static bool __read_mostly fasteoi = 1; 
module_param(fasteoi, bool, 0444);



module_param(enable_apicv, bool, 0444);



bool __read_mostly enable_ipiv = true;

module_param(enable_ipiv, bool, 0444);



module_param(enable_device_posted_irqs, bool, 0444);

arch/x86/kvm/x86.c

+3 −0
Original line number Diff line number Diff line
@@ -226,6 +226,9 @@ EXPORT_SYMBOL_GPL(allow_smaller_maxphyaddr); 
bool __read_mostly enable_apicv = true;

EXPORT_SYMBOL_GPL(enable_apicv);



bool __read_mostly enable_ipiv = true;

EXPORT_SYMBOL_GPL(enable_ipiv);



bool __read_mostly enable_device_posted_irqs = true;

EXPORT_SYMBOL_GPL(enable_device_posted_irqs);