Junaid Shahid 37f0e8fe6b kvm: x86: mmu: Do not use bit 63 for tracking special SPTEs ... MMIO SPTEs currently set both bits 62 and 63 to distinguish them as special PTEs. However, bit 63 is used as the SVE bit in Intel EPT PTEs. The SVE bit is ignored for misconfigured PTEs but not necessarily for not-Present PTEs. Since MMIO SPTEs use an EPT misconfiguration, so using bit 63 for them is acceptable. However, the upcoming fast access tracking feature adds another type of special tracking PTE, which uses not-Present PTEs and hence should not set bit 63. In order to use common bits to distinguish both type of special PTEs, we now use only bit 62 as the special bit. Signed-off-by: Junaid Shahid <junaids@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2017-01-09 14:46:10 +01:00
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asm	kvm: x86: mmu: Do not use bit 63 for tracking special SPTEs	2017-01-09 14:46:10 +01:00
uapi/asm	Small release, the most interesting stuff is x86 nested virt improvements.	2016-12-13 15:47:02 -08:00