Takuya Yoshikawa 75d61fbcf5 KVM: set_memory_region: Disallow changing read-only attribute later ... As Xiao pointed out, there are a few problems with it: - kvm_arch_commit_memory_region() write protects the memory slot only for GET_DIRTY_LOG when modifying the flags. - FNAME(sync_page) uses the old spte value to set a new one without checking KVM_MEM_READONLY flag. Since we flush all shadow pages when creating a new slot, the simplest fix is to disallow such problematic flag changes: this is safe because no one is doing such things. Reviewed-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp> Cc: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Cc: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>		2013-02-04 22:56:47 -02:00
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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	KVM: Halt vcpu if page it tries to access is swapped out	2011-01-12 11:21:39 +02:00
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	KVM: remove in_range from io devices	2009-09-10 08:33:05 +03:00
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: Disallow changing read-only attribute later	2013-02-04 22:56:47 -02:00