diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-04 09:30:33 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-04 09:30:33 -0700 |
commit | ecefbd94b834fa32559d854646d777c56749ef1c (patch) | |
tree | ca8958900ad9e208a8e5fb7704f1b66dc76131b4 /arch/x86/kvm/timer.c | |
parent | ce57e981f2b996aaca2031003b3f866368307766 (diff) | |
parent | 3d11df7abbff013b811d5615320580cd5d9d7d31 (diff) |
Merge tag 'kvm-3.7-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Avi Kivity:
"Highlights of the changes for this release include support for vfio
level triggered interrupts, improved big real mode support on older
Intels, a streamlines guest page table walker, guest APIC speedups,
PIO optimizations, better overcommit handling, and read-only memory."
* tag 'kvm-3.7-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (138 commits)
KVM: s390: Fix vcpu_load handling in interrupt code
KVM: x86: Fix guest debug across vcpu INIT reset
KVM: Add resampling irqfds for level triggered interrupts
KVM: optimize apic interrupt delivery
KVM: MMU: Eliminate pointless temporary 'ac'
KVM: MMU: Avoid access/dirty update loop if all is well
KVM: MMU: Eliminate eperm temporary
KVM: MMU: Optimize is_last_gpte()
KVM: MMU: Simplify walk_addr_generic() loop
KVM: MMU: Optimize pte permission checks
KVM: MMU: Update accessed and dirty bits after guest pagetable walk
KVM: MMU: Move gpte_access() out of paging_tmpl.h
KVM: MMU: Optimize gpte_access() slightly
KVM: MMU: Push clean gpte write protection out of gpte_access()
KVM: clarify kvmclock documentation
KVM: make processes waiting on vcpu mutex killable
KVM: SVM: Make use of asm.h
KVM: VMX: Make use of asm.h
KVM: VMX: Make lto-friendly
KVM: x86: lapic: Clean up find_highest_vector() and count_vectors()
...
Conflicts:
arch/s390/include/asm/processor.h
arch/x86/kvm/i8259.c
Diffstat (limited to 'arch/x86/kvm/timer.c')
-rw-r--r-- | arch/x86/kvm/timer.c | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/arch/x86/kvm/timer.c b/arch/x86/kvm/timer.c deleted file mode 100644 index 6b85cc647f34..000000000000 --- a/arch/x86/kvm/timer.c +++ /dev/null @@ -1,47 +0,0 @@ -/* - * Kernel-based Virtual Machine driver for Linux - * - * This module enables machines with Intel VT-x extensions to run virtual - * machines without emulation or binary translation. - * - * timer support - * - * Copyright 2010 Red Hat, Inc. and/or its affiliates. - * - * This work is licensed under the terms of the GNU GPL, version 2. See - * the COPYING file in the top-level directory. - */ - -#include <linux/kvm_host.h> -#include <linux/kvm.h> -#include <linux/hrtimer.h> -#include <linux/atomic.h> -#include "kvm_timer.h" - -enum hrtimer_restart kvm_timer_fn(struct hrtimer *data) -{ - struct kvm_timer *ktimer = container_of(data, struct kvm_timer, timer); - struct kvm_vcpu *vcpu = ktimer->vcpu; - wait_queue_head_t *q = &vcpu->wq; - - /* - * There is a race window between reading and incrementing, but we do - * not care about potentially losing timer events in the !reinject - * case anyway. Note: KVM_REQ_PENDING_TIMER is implicitly checked - * in vcpu_enter_guest. - */ - if (ktimer->reinject || !atomic_read(&ktimer->pending)) { - atomic_inc(&ktimer->pending); - /* FIXME: this code should not know anything about vcpus */ - kvm_make_request(KVM_REQ_PENDING_TIMER, vcpu); - } - - if (waitqueue_active(q)) - wake_up_interruptible(q); - - if (ktimer->t_ops->is_periodic(ktimer)) { - hrtimer_add_expires_ns(&ktimer->timer, ktimer->period); - return HRTIMER_RESTART; - } else - return HRTIMER_NORESTART; -} |