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KVM: x86: add method to test PIR bitmap vector 

kvm_x86_ops->test_posted_interrupt() returns true/false depending
whether 'vector' is set.

Next patch makes use of this interface.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Marcelo Tosatti 2014-12-16 09:08:14 -05:00 committed by Paolo Bonzini
parent b4eef9b36d
commit 7c6a98dfa1
2 changed files with 15 additions and 0 deletions
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1
arch/x86/include/asm/kvm_host.h
View File

@ -753,6 +753,7 @@ struct kvm_x86_ops {
void (*set_virtual_x2apic_mode)(struct kvm_vcpu *vcpu, bool set);
void (*set_apic_access_page_addr)(struct kvm_vcpu *vcpu, hpa_t hpa);
void (*deliver_posted_interrupt)(struct kvm_vcpu *vcpu, int vector);
bool (*test_posted_interrupt)(struct kvm_vcpu *vcpu, int vector);
void (*sync_pir_to_irr)(struct kvm_vcpu *vcpu);
int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
int (*get_tdp_level)(void);

14
arch/x86/kvm/vmx.c
View File

@ -435,6 +435,11 @@ static int pi_test_and_set_pir(int vector, struct pi_desc *pi_desc)
return test_and_set_bit(vector, (unsigned long *)pi_desc->pir);
}
static int pi_test_pir(int vector, struct pi_desc *pi_desc)
{
return test_bit(vector, (unsigned long *)pi_desc->pir);
}
struct vcpu_vmx {
struct kvm_vcpu vcpu;
unsigned long host_rsp;
@ -5897,6 +5902,7 @@ static __init int hardware_setup(void)
kvm_x86_ops->hwapic_irr_update = NULL;
kvm_x86_ops->hwapic_isr_update = NULL;
kvm_x86_ops->deliver_posted_interrupt = NULL;
kvm_x86_ops->test_posted_interrupt = NULL;
kvm_x86_ops->sync_pir_to_irr = vmx_sync_pir_to_irr_dummy;
}
@ -6968,6 +6974,13 @@ static int handle_invvpid(struct kvm_vcpu *vcpu)
return 1;
}
static bool vmx_test_pir(struct kvm_vcpu *vcpu, int vector)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
return pi_test_pir(vector, &vmx->pi_desc);
}
/*
* The exit handlers return 1 if the exit was handled fully and guest execution
* may resume. Otherwise they set the kvm_run parameter to indicate what needs
@ -9562,6 +9575,7 @@ static struct kvm_x86_ops vmx_x86_ops = {
.hwapic_isr_update = vmx_hwapic_isr_update,
.sync_pir_to_irr = vmx_sync_pir_to_irr,
.deliver_posted_interrupt = vmx_deliver_posted_interrupt,
.test_posted_interrupt = vmx_test_pir,
.set_tss_addr = vmx_set_tss_addr,
.get_tdp_level = get_ept_level,