Takuya Yoshikawa f64c039893 KVM: set_memory_region: Identify the requested change explicitly ... KVM_SET_USER_MEMORY_REGION forces __kvm_set_memory_region() to identify what kind of change is being requested by checking the arguments. The current code does this checking at various points in code and each condition being used there is not easy to understand at first glance. This patch consolidates these checks and introduces an enum to name the possible changes to clean up the code. Although this does not introduce any functional changes, there is one change which optimizes the code a bit: if we have nothing to change, the new code returns 0 immediately. Note that the return value for this case cannot be changed since QEMU relies on it: we noticed this when we changed it to -EINVAL and got a section mismatch error at the final stage of live migration. Signed-off-by: Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>		2013-02-04 22:00:53 -02:00
..
assigned-dev.c	kvm: deliver msi interrupts from irq handler	2012-12-05 15:10:53 +02:00
async_pf.c	KVM: do not release the error page	2012-08-06 16:04:58 +03:00
async_pf.h
coalesced_mmio.c	KVM: make checks stricter in coalesced_mmio_in_range()	2011-12-27 11:17:07 +02:00
coalesced_mmio.h	KVM: Make coalesced mmio use a device per zone	2011-09-25 19:17:57 +03:00
eventfd.c	kvm: Fix irqfd resampler list walk	2012-12-10 18:16:36 -02:00
ioapic.c	x86, apicv: add virtual interrupt delivery support	2013-01-29 10:48:19 +02:00
ioapic.h	x86, apicv: add virtual interrupt delivery support	2013-01-29 10:48:19 +02:00
iodev.h
iommu.c	kvm: Obey read-only mappings in iommu	2013-01-27 12:41:41 +02:00
irq_comm.c	x86, apicv: add virtual interrupt delivery support	2013-01-29 10:48:19 +02:00
Kconfig	KVM: Add config to support ple or cpu relax optimzation	2012-07-23 13:00:53 +03:00
kvm_main.c	KVM: set_memory_region: Identify the requested change explicitly	2013-02-04 22:00:53 -02:00