linux_dsm_epyc7002/arch/powerpc
Alexey Kardashevskiy 687414bebe KVM: PPC: Book3S HV: Fix dirty map for hugepages
The dirty map that we construct for the KVM_GET_DIRTY_LOG ioctl has
one bit per system page (4K/64K).  Currently, we only set one bit in
the map for each HPT entry with the Change bit set, even if the HPT is
for a large page (e.g., 16MB).  Userspace then considers only the
first system page dirty, though in fact the guest may have modified
anywhere in the large page.

To fix this, we make kvm_test_clear_dirty() return the actual number
of pages that are dirty (and rename it to kvm_test_clear_dirty_npages()
to emphasize that that's what it returns).  In kvmppc_hv_get_dirty_log()
we then set that many bits in the dirty map.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-05-30 14:26:29 +02:00
..
boot powerpc: T4240: Add ina220 node in dts 2014-03-19 16:57:25 -05:00
configs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2014-04-12 14:49:50 -07:00
crypto powerpc: Fix compile of sha1-powerpc-asm.S on 32-bit 2013-03-05 16:56:26 +11:00
include KVM: PPC: Book3S: Move KVM_REG_PPC_WORT to an unused register number 2014-05-30 14:26:28 +02:00
kernel PPC: ePAPR: Fix hypercall on LE guest 2014-05-30 14:26:26 +02:00
kvm KVM: PPC: Book3S HV: Fix dirty map for hugepages 2014-05-30 14:26:29 +02:00
lib selftests/powerpc: Import Anton's memcpy / copy_tofrom_user tests 2014-03-07 15:53:12 +11:00
math-emu powerpc: Correct emulated mtfsf instruction 2014-04-07 10:33:11 +10:00
mm power, sched: stop updating inside arch_update_cpu_topology() when nothing to be update 2014-04-09 12:54:17 +10:00
net net: filter: add jited flag to indicate jit compiled filters 2014-03-31 00:45:08 -04:00
oprofile cpufreq: remove unused notifier: CPUFREQ_{SUSPENDCHANGE|RESUMECHANGE} 2014-03-19 14:10:24 +01:00
perf powerpc/perf: Fix handling of L3 events with bank == 1 2014-03-24 09:48:33 +11:00
platforms More ACPI and power management fixes and updates for 3.15-rc1 2014-04-11 13:20:04 -07:00
sysdev Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2014-04-09 08:35:31 -07:00
xmon powerpc: Fix xmon disassembler for little-endian 2014-03-07 15:50:12 +11:00
Kconfig Merge git://git.infradead.org/users/eparis/audit 2014-04-12 12:38:53 -07:00
Kconfig.debug Merge branch 'kconfig-diet' from Dave Hansen 2013-07-04 11:25:51 -07:00
Makefile powerpc/le: Avoid creatng R_PPC64_TOCSAVE relocations for modules. 2014-04-09 12:53:44 +10:00
relocs_check.pl Fix warning typo "CONFIG_RELCOATABLE" 2013-05-29 15:11:30 +02:00