Re: [Xen-devel] [PATCH] x86/mm: Skip the hypervisor range when walking PGD

2015-11-05 Thread Boris Ostrovsky
On 11/05/2015 05:31 PM, H. Peter Anvin wrote: On 11/05/15 10:56, Boris Ostrovsky wrote: The range between 0x8000 and 0x87ff is reserved for hypervisor and therefore we should not try to follow PGD's indexes corresponding to those addresses. While this has alsways been

Re: [Xen-devel] [PATCH] x86/mm: Skip the hypervisor range when walking PGD

2015-11-05 Thread H. Peter Anvin
On 11/05/15 10:56, Boris Ostrovsky wrote: > The range between 0x8000 and 0x87ff is reserved > for hypervisor and therefore we should not try to follow PGD's indexes > corresponding to those addresses. > > While this has alsways been a problem, with commit e1a58320a38d ("x86