Paul Mackerras a1b4a0f606 KVM: PPC: Book3S HV: Make HPT reading code notice R/C bit changes ... At present, the code that determines whether a HPT entry has changed, and thus needs to be sent to userspace when it is copying the HPT, doesn't consider a hardware update to the reference and change bits (R and C) in the HPT entries to constitute a change that needs to be sent to userspace. This adds code to check for changes in R and C when we are scanning the HPT to find changed entries, and adds code to set the changed flag for the HPTE when we update the R and C bits in the guest view of the HPTE. Since we now need to set the HPTE changed flag in book3s_64_mmu_hv.c as well as book3s_hv_rm_mmu.c, we move the note_hpte_modification() function into kvm_book3s_64.h. Current Linux guest kernels don't use the hardware updates of R and C in the HPT, so this change won't affect them. Linux (or other) kernels might in future want to use the R and C bits and have them correctly transferred across when a guest is migrated, so it is better to correct this deficiency. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Alexander Graf <agraf@suse.de>		2013-04-26 20:27:12 +02:00
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asm	KVM: PPC: Book3S HV: Make HPT reading code notice R/C bit changes	2013-04-26 20:27:12 +02:00
uapi/asm	KVM: PPC: e500: Add support for EPTCFG register	2013-04-26 20:27:08 +02:00