From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, mpe@ellerman.id.au
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
Bharata B Rao <bharata@linux.ibm.com>
Subject: [PATCH v2 0/4] powerpc/mm/radix: Memory unplug fixes
Date: Thu, 25 Jun 2020 12:15:43 +0530 [thread overview]
Message-ID: <20200625064547.228448-1-aneesh.kumar@linux.ibm.com> (raw)
This is the next version of the fixes for memory unplug on radix.
The issues and the fix are described in the actual patches.
Changes from v1:
- Added back patch to drop split_kernel_mapping
- Most of the split_kernel_mapping related issues are now described
in the removal patch
- drop pte fragment change
- use lmb size as the max mapping size.
- Radix baremetal now use memory block size of 1G.
Changes from v0:
==============
- Rebased to latest kernel.
- Took care of p4d changes.
- Addressed Aneesh's review feedback:
- Added comments.
- Indentation fixed.
- Dropped the 1st patch (setting DRCONF_MEM_HOTREMOVABLE lmb flags) as
it is debatable if this flag should be set in the device tree by OS
and not by platform in case of hotplug. This can be looked at separately.
(The fixes in this patchset remain valid without the dropped patch)
- Dropped the last patch that removed split_kernel_mapping() to ensure
that spilitting code is available for any radix guest running on
platforms that don't set DRCONF_MEM_HOTREMOVABLE.
Aneesh Kumar K.V (2):
powerpc/mm/radix: Fix PTE/PMD fragment count for early page table
mappings
powerpc/mm/radix: Create separate mappings for hot-plugged memory
Bharata B Rao (2):
powerpc/mm/radix: Free PUD table when freeing pagetable
powerpc/mm/radix: Remove split_kernel_mapping()
arch/powerpc/include/asm/book3s/64/pgalloc.h | 16 +-
arch/powerpc/mm/book3s64/pgtable.c | 5 +-
arch/powerpc/mm/book3s64/radix_pgtable.c | 199 +++++++++++--------
arch/powerpc/mm/pgtable-frag.c | 3 +
arch/powerpc/platforms/powernv/setup.c | 10 +-
5 files changed, 144 insertions(+), 89 deletions(-)
--
2.26.2
next reply other threads:[~2020-06-25 6:48 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-25 6:45 Aneesh Kumar K.V [this message]
2020-06-25 6:45 ` [PATCH v2 1/4] powerpc/mm/radix: Fix PTE/PMD fragment count for early page table mappings Aneesh Kumar K.V
2020-06-25 11:30 ` Aneesh Kumar K.V
2020-06-25 6:45 ` [PATCH v2 2/4] powerpc/mm/radix: Free PUD table when freeing pagetable Aneesh Kumar K.V
2020-07-08 2:12 ` Michael Ellerman
2020-07-08 2:48 ` Aneesh Kumar K.V
2020-07-08 20:30 ` Reza Arbab
2020-06-25 6:45 ` [PATCH v2 3/4] powerpc/mm/radix: Remove split_kernel_mapping() Aneesh Kumar K.V
2020-06-25 6:45 ` [PATCH v2 4/4] powerpc/mm/radix: Create separate mappings for hot-plugged memory Aneesh Kumar K.V
2020-07-08 4:44 ` Michael Ellerman
2020-07-08 6:24 ` Aneesh Kumar K.V
2020-07-08 12:14 ` Michael Ellerman
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