This is a note to let you know that I've just added the patch titled

KVM: nVMX: vmx_complete_nested_posted_interrupt() can't fail

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: kvm-nvmx-vmx_complete_nested_posted_interrupt-can-t-fail.patch and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From 6342c50ad12e8ce0736e722184a7dbdea4a3477f Mon Sep 17 00:00:00 2001

From: David Hildenbrand david@redhat.com Date: Wed, 25 Jan 2017 11:58:58 +0100 Subject: KVM: nVMX: vmx_complete_nested_posted_interrupt() can't fail

From: David Hildenbrand david@redhat.com

commit 6342c50ad12e8ce0736e722184a7dbdea4a3477f upstream.

vmx_complete_nested_posted_interrupt() can't fail, let's turn it into a void function.

Signed-off-by: David Hildenbrand david@redhat.com Signed-off-by: Paolo Bonzini pbonzini@redhat.com Signed-off-by: David Woodhouse dwmw@amazon.co.uk Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kvm/vmx.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)

--- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -4738,7 +4738,7 @@ static bool vmx_get_enable_apicv(void) return enable_apicv; }

-static int vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu) +static void vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu) { struct vcpu_vmx *vmx = to_vmx(vcpu); int max_irr; @@ -4749,13 +4749,13 @@ static int vmx_complete_nested_posted_in vmx->nested.pi_pending) { vmx->nested.pi_pending = false; if (!pi_test_and_clear_on(vmx->nested.pi_desc)) - return 0; + return;

max_irr = find_last_bit( (unsigned long *)vmx->nested.pi_desc->pir, 256);

if (max_irr == 256) - return 0; + return;

vapic_page = kmap(vmx->nested.virtual_apic_page); if (!vapic_page) { @@ -4772,7 +4772,6 @@ static int vmx_complete_nested_posted_in vmcs_write16(GUEST_INTR_STATUS, status); } } - return 0; }

static inline bool kvm_vcpu_trigger_posted_interrupt(struct kvm_vcpu *vcpu) @@ -10493,7 +10492,8 @@ static int vmx_check_nested_events(struc return 0; }

- return vmx_complete_nested_posted_interrupt(vcpu); + vmx_complete_nested_posted_interrupt(vcpu); + return 0; }

static u32 vmx_get_preemption_timer_value(struct kvm_vcpu *vcpu)

Patches currently in stable-queue which might be from david@redhat.com are

queue-4.9/kvm-nvmx-eliminate-vmcs02-pool.patch queue-4.9/kvm-nvmx-vmx_complete_nested_posted_interrupt-can-t-fail.patch