user/sven/linux.git/include/linux/kvm_host.h, branch v2.6.27.8

KVM: Synchronize guest physical memory map to host virtual memory map

2008-07-29T09:33:53Z

Synchronize changes to host virtual addresses which are part of a KVM memory slot to the KVM shadow mmu. This allows pte operations like swapping, page migration, and madvise() to transparently work with KVM. Signed-off-by: Andrea Arcangeli Signed-off-by: Avi Kivity

KVM: MMU: nuke shadowed pgtable pages and ptes on memslot destruction

2008-07-20T09:42:40Z

Flush the shadow mmu before removing regions to avoid stale entries. Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity

KVM: Add coalesced MMIO support (common part)

2008-07-20T09:42:31Z

This patch adds all needed structures to coalesce MMIOs. Until an architecture uses it, it is not compiled. Coalesced MMIO introduces two ioctl() to define where are the MMIO zones that can be coalesced: - KVM_REGISTER_COALESCED_MMIO registers a coalesced MMIO zone. It requests one parameter (struct kvm_coalesced_mmio_zone) which defines a memory area where MMIOs can be coalesced until the next switch to user space. The maximum number of MMIO zones is KVM_COALESCED_MMIO_ZONE_MAX. - KVM_UNREGISTER_COALESCED_MMIO cancels all registered zones inside the given bounds (bounds are also given by struct kvm_coalesced_mmio_zone). The userspace client can check kernel coalesced MMIO availability by asking ioctl(KVM_CHECK_EXTENSION) for the KVM_CAP_COALESCED_MMIO capability. The ioctl() call to KVM_CAP_COALESCED_MMIO will return 0 if not supported, or the page offset where will be stored the ring buffer. The page offset depends on the architecture. After an ioctl(KVM_RUN), the first page of the KVM memory mapped points to a kvm_run structure. The offset given by KVM_CAP_COALESCED_MMIO is an offset to the coalesced MMIO ring expressed in PAGE_SIZE relatively to the address of the start of th kvm_run structure. The MMIO ring buffer is defined by the structure kvm_coalesced_mmio_ring. [akio: fix oops during guest shutdown] Signed-off-by: Laurent Vivier Signed-off-by: Akio Takebe Signed-off-by: Avi Kivity

KVM: kvm_io_device: extend in_range() to manage len and write attribute

2008-07-20T09:42:30Z

Modify member in_range() of structure kvm_io_device to pass length and the type of the I/O (write or read). This modification allows to use kvm_io_device with coalesced MMIO. Signed-off-by: Laurent Vivier Signed-off-by: Avi Kivity

KVM: Remove decache_vcpus_on_cpu() and related callbacks

2008-07-20T09:42:25Z

Obsoleted by the vmx-specific per-cpu list. Signed-off-by: Avi Kivity

KVM: close timer injection race window in __vcpu_run

2008-06-24T09:16:59Z

If a timer fires after kvm_inject_pending_timer_irqs() but before local_irq_disable() the code will enter guest mode and only inject such timer interrupt the next time an unrelated event causes an exit. It would be simpler if the timer->pending irq conversion could be done with IRQ's disabled, so that the above problem cannot happen. For now introduce a new vcpu requests bit to cancel guest entry. Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity

KVM: migrate PIT timer

2008-06-06T18:25:51Z

Migrate the PIT timer to the physical CPU which vcpu0 is scheduled on, similarly to what is done for the LAPIC timers, otherwise PIT interrupts will be delayed until an unrelated event causes an exit. Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity

KVM: kill file->f_count abuse in kvm

2008-04-27T15:21:46Z

Use kvm own refcounting instead of playing with ->filp->f_count. That will allow to get rid of a lot of crap in anon_inode_getfd() and kill a race in kvm_dev_ioctl_create_vm() (file might have been closed immediately by another thread, so ->filp might point to already freed struct file when we get around to setting it). Signed-off-by: Al Viro Signed-off-by: Avi Kivity

KVM: Rename debugfs_dir to kvm_debugfs_dir

2008-04-27T15:21:36Z

It's a globally exported symbol now. Signed-off-by: Hollis Blanchard Signed-off-by: Avi Kivity

KVM: add ioctls to save/store mpstate

2008-04-27T15:21:16Z

So userspace can save/restore the mpstate during migration. [avi: export the #define constants describing the value] [christian: add s390 stubs] [avi: ditto for ia64] Signed-off-by: Marcelo Tosatti Signed-off-by: Christian Borntraeger Signed-off-by: Carsten Otte Signed-off-by: Avi Kivity