android_kernel_motorola_sm6375/include
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Laurent Vivier 5f94c1741b KVM: Add coalesced MMIO support (common part)
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 <Laurent.Vivier@bull.net>
Signed-off-by: Akio Takebe <takebe_akio@jp.fujitsu.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20 12:42:31 +03:00
..
acpi Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2008-07-16 17:25:46 -07:00
asm-alpha
asm-arm Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc 2008-07-16 15:17:52 -07:00
asm-avr32 atmel-mci: Driver for Atmel on-chip MMC controllers 2008-07-15 14:14:49 +02:00
asm-blackfin
asm-cris
asm-frv frv: fix irqs_disabled() to return an int, not an unsigned long 2008-07-12 14:33:42 -07:00
asm-generic Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2008-07-16 17:25:46 -07:00
asm-h8300
asm-ia64 KVM: IOAPIC/LAPIC: Enable NMI support 2008-07-20 12:42:25 +03:00
asm-m32r
asm-m68k
asm-m68knommu
asm-mips Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc 2008-07-16 15:17:52 -07:00
asm-mn10300
asm-parisc
asm-powerpc Merge commit 'origin/master' 2008-07-16 11:07:59 +10:00
asm-s390 [S390] qdio: new qdio driver. 2008-07-17 17:22:10 +02:00
asm-sh
asm-sparc
asm-sparc64
asm-um
asm-v850
asm-x86 KVM: Prefixes segment functions that will be exported with "kvm_" 2008-07-20 12:42:27 +03:00
asm-xtensa
crypto crypto: hash - Move ahash functions into crypto/hash.h 2008-07-10 20:35:18 +08:00
drm drm/radeon: fixup issue with radeon and PAT support. 2008-07-15 15:48:05 +10:00
keys
linux KVM: Add coalesced MMIO support (common part) 2008-07-20 12:42:31 +03:00
math-emu
media
mtd
net
pcmcia
rdma RDMA/addr: Keep pointer to netdevice in struct rdma_dev_addr 2008-07-14 23:48:53 -07:00
rxrpc
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-07-15 18:58:04 -07:00
sound ALSA: Release v1.0.17 2008-07-14 09:54:43 +02:00
video
xen
Kbuild drm: reorganise drm tree to be more future proof. 2008-07-14 10:45:01 +10:00