On Fri, May 04, 2018 at 11:11:21AM +0200, Christian Borntraeger wrote: > you should also add the arm/mips/power maintainers so that they can review their > struct kvm_arch if any of the content is passed directly to the hardware (e.g. with > __pa). A quick looks seems to indicate that there is no issue. MIPS has additional restrictions because it has a software managed TLB, so we have to be careful where we access vmalloc'd memory, especially around entry point code which may not expect to receive a TLB refill exception. I'll have a deeper look later to see if it would obviously break anything. Thanks James > > On 05/03/2018 07:59 PM, Marc Orr wrote: > > The kvm struct is (currently) tens of kilo-bytes, which turns out to be a > > large amount of memory to allocate contiguously via kzalloc. Thus, this > > patch changes the kzalloc to a vzalloc, so that the memory allocation is > > less likely to fail in resource-constrained environments. > > > > Signed-off-by: Marc Orr <marcorr@xxxxxxxxxx>
