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| author | Marcelo Tosatti <mtosatti@redhat.com> | 2014-12-16 09:08:14 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-01-08 22:45:18 +0100 |
| commit | 7c6a98dfa1ba9dc64a62e73624ecea9995736bbd (patch) | |
| tree | c09add5274ab7c53106ffe3c81e6e640e46f7e5e | |
| parent | b4eef9b36db461ca44832226fbca614db58c0c33 (diff) | |
| download | linux-7c6a98dfa1ba9dc64a62e73624ecea9995736bbd.tar.bz2 | |
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>
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 1 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx.c | 14 |
2 files changed, 15 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index d89c6b828c96..cb19d05af3cd 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -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); diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 6e71fac27d4e..3b97f8b3065e 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -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, |