linux_dsm_epyc7002/arch/powerpc
Paul Mackerras 44e5f6be62 KVM: PPC: Book3S HV: Add a mechanism for recording modified HPTEs
This uses a bit in our record of the guest view of the HPTE to record
when the HPTE gets modified.  We use a reserved bit for this, and ensure
that this bit is always cleared in HPTE values returned to the guest.

The recording of modified HPTEs is only done if other code indicates
its interest by setting kvm->arch.hpte_mod_interest to a non-zero value.
The reason for this is that when later commits add facilities for
userspace to read the HPT, the first pass of reading the HPT will be
quicker if there are no (or very few) HPTEs marked as modified,
rather than having most HPTEs marked as modified.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-06 01:33:54 +01:00
..
boot Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2012-10-06 03:16:12 +09:00
configs UAPI Disintegration 2012-10-09 2012-10-09 15:04:25 +01:00
include KVM: PPC: Book3S HV: Add a mechanism for recording modified HPTEs 2012-12-06 01:33:54 +01:00
kernel Merge commit 'origin/queue' into for-queue 2012-10-31 13:36:18 +01:00
kvm KVM: PPC: Book3S HV: Add a mechanism for recording modified HPTEs 2012-12-06 01:33:54 +01:00
lib powerpc: Fix VMX fix for memcpy case 2012-10-04 18:02:43 +10:00
math-emu powerpc/math_emu/efp: Look for errata handler when type mismatches 2011-10-06 23:36:47 -05:00
mm readahead: fault retry breaks mmap file read random detection 2012-10-09 16:22:47 +09:00
net powerpc: Start using ___PPC_RA/B/S/T where necessary 2012-07-10 19:18:25 +10:00
oprofile mm: use mm->exe_file instead of first VM_EXECUTABLE vma->vm_file 2012-10-09 16:22:18 +09:00
perf Revert "powerpc/perf: Use pmc_overflow() to detect rolled back events" 2012-10-18 10:36:11 +11:00
platforms Merge remote-tracking branch 'master' into queue 2012-10-29 19:15:32 -02:00
sysdev Merge remote-tracking branch 'master' into queue 2012-10-29 19:15:32 -02:00
xmon powerpc: Add an xmon command to dump one or all pacas 2012-09-18 15:02:36 +10:00
Kconfig Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
Kconfig.debug powerpc: IOMMU fault injection 2012-07-10 19:18:59 +10:00
Makefile crypto: nx - move nx build to driver/crypto Makefile 2012-06-27 14:42:00 +08:00
relocs_check.pl powerpc: Process dynamic relocations for kernel 2011-12-20 10:21:08 -05:00