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* [PATCH RFCv2 00/15] xen/arm: mm: Remove open-coding mappings
@ 2021-04-25 20:13 Julien Grall
  2021-04-25 20:13 ` [PATCH RFCv2 01/15] xen/arm: lpae: Rename LPAE_ENTRIES_MASK_GS to LPAE_ENTRY_MASK_GS Julien Grall
                   ` (14 more replies)
  0 siblings, 15 replies; 58+ messages in thread
From: Julien Grall @ 2021-04-25 20:13 UTC (permalink / raw)
  To: xen-devel
  Cc: Wei.Chen, Henry.Wang, Penny.Zheng, Bertrand.Marquis,
	Julien Grall, Stefano Stabellini, Julien Grall,
	Volodymyr Babchuk, Jan Beulich, Wei Liu, Andrew Cooper,
	Roger Pau Monné,
	Hongian Xia

From: Julien Grall <jgrall@amazon.com>

Hi all,

This series was originally sent as "xen/arm: mm: Add limited support
for superpages" [1] and finally has grown enough to remove most of
the open-coding mappings in the boot code.

This will help to:
    1) Get better compliance with the Arm memory model
    2) Pave the way to support other page size (64KB, 16KB)

This is not fully finished (only boot tested on Arm64) but I sent it
early to get more testing and also unblock some of the on-going work
to support static memory allocation for dom0less (see [2]).

There are still a few TODOs:
    - Add support for setting the contiguous bits
    - Remove 1GB alignment in setup_xenheap_mappings()
    - Decide whether we want to provide a common PMAP

Cheers,

[1] <20201119190751.22345-1-julien@xen.org>
[2] <PA4PR08MB6253F49C13ED56811BA5B64E92479@PA4PR08MB6253.eurprd08.prod.outlook.com>

Julien Grall (14):
  xen/arm: lpae: Rename LPAE_ENTRIES_MASK_GS to LPAE_ENTRY_MASK_GS
  xen/arm: lpae: Use the generic helpers to defined the Xen PT helpers
  xen/arm: p2m: Replace level_{orders, masks} arrays with LEVEL_{ORDER,
    MASK}
  xen/arm: mm: Allow other mapping size in xen_pt_update_entry()
  xen/arm: mm: Avoid flushing the TLBs when mapping are inserted
  xen/arm: mm: Don't open-code Xen PT update in remove_early_mappings()
  xen/arm: mm: Re-implement early_fdt_map() using map_pages_to_xen()
  xen/arm32: mm: Check if the virtual address is shared before updating
    it
  xen/arm32: mm: Re-implement setup_xenheap_mappings() using
    map_pages_to_xen()
  xen/arm: mm: Allocate xen page tables in domheap rather than xenheap
  xen/arm: mm: Allow page-table allocation from the boot allocator
  xen/arm: mm: Use the PMAP helpers in xen_{,un}map_table()
  xen/arm: mm: Rework setup_xenheap_mappings()
  xen/arm: mm: Re-implement setup_frame_table_mappings() with
    map_pages_to_xen()

Wei Liu (1):
  xen/arm: add Persistent Map (PMAP) infrastructure

 xen/arch/arm/Makefile        |   1 +
 xen/arch/arm/mm.c            | 362 +++++++++++++++++------------------
 xen/arch/arm/p2m.c           |  16 +-
 xen/arch/arm/pmap.c          | 101 ++++++++++
 xen/arch/arm/setup.c         |  10 +-
 xen/include/asm-arm/config.h |   6 +
 xen/include/asm-arm/lpae.h   |  83 ++++----
 xen/include/asm-arm/page.h   |   4 +
 xen/include/asm-arm/pmap.h   |  10 +
 9 files changed, 356 insertions(+), 237 deletions(-)
 create mode 100644 xen/arch/arm/pmap.c
 create mode 100644 xen/include/asm-arm/pmap.h

-- 
2.17.1



^ permalink raw reply	[flat|nested] 58+ messages in thread

end of thread, other threads:[~2021-07-14 17:40 UTC | newest]

Thread overview: 58+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-25 20:13 [PATCH RFCv2 00/15] xen/arm: mm: Remove open-coding mappings Julien Grall
2021-04-25 20:13 ` [PATCH RFCv2 01/15] xen/arm: lpae: Rename LPAE_ENTRIES_MASK_GS to LPAE_ENTRY_MASK_GS Julien Grall
2021-05-11 22:12   ` Stefano Stabellini
2021-04-25 20:13 ` [PATCH RFCv2 02/15] xen/arm: lpae: Use the generic helpers to defined the Xen PT helpers Julien Grall
2021-05-11 22:26   ` Stefano Stabellini
2021-05-12 14:26     ` Julien Grall
2021-05-12 21:30       ` Stefano Stabellini
2021-05-12 22:16         ` Julien Grall
2021-05-13 22:44           ` Stefano Stabellini
2021-07-03 17:32             ` Julien Grall
2021-07-13 20:53               ` Stefano Stabellini
2021-07-14 17:40                 ` Julien Grall
2021-04-25 20:13 ` [PATCH RFCv2 03/15] xen/arm: p2m: Replace level_{orders, masks} arrays with LEVEL_{ORDER, MASK} Julien Grall
2021-05-11 22:33   ` Stefano Stabellini
2021-05-12 14:39     ` Julien Grall
2021-04-25 20:13 ` [PATCH RFCv2 04/15] xen/arm: mm: Allow other mapping size in xen_pt_update_entry() Julien Grall
2021-05-11 22:42   ` Stefano Stabellini
2021-04-25 20:13 ` [PATCH RFCv2 05/15] xen/arm: mm: Avoid flushing the TLBs when mapping are inserted Julien Grall
2021-05-11 22:51   ` Stefano Stabellini
2021-04-25 20:13 ` [PATCH RFCv2 06/15] xen/arm: mm: Don't open-code Xen PT update in remove_early_mappings() Julien Grall
2021-05-11 22:58   ` Stefano Stabellini
2021-04-25 20:13 ` [PATCH RFCv2 07/15] xen/arm: mm: Re-implement early_fdt_map() using map_pages_to_xen() Julien Grall
2021-05-12 21:41   ` Stefano Stabellini
2021-05-12 22:18     ` Julien Grall
2021-04-25 20:13 ` [PATCH RFCv2 08/15] xen/arm32: mm: Check if the virtual address is shared before updating it Julien Grall
2021-05-12 22:00   ` Stefano Stabellini
2021-05-12 22:23     ` Julien Grall
2021-05-13 22:32       ` Stefano Stabellini
2021-05-13 22:59         ` Julien Grall
2021-05-14  1:04           ` Stefano Stabellini
2021-04-25 20:13 ` [PATCH RFCv2 09/15] xen/arm32: mm: Re-implement setup_xenheap_mappings() using map_pages_to_xen() Julien Grall
2021-05-12 22:07   ` Stefano Stabellini
2021-05-13 17:55     ` Julien Grall
2021-04-25 20:13 ` [PATCH RFCv2 10/15] xen/arm: mm: Allocate xen page tables in domheap rather than xenheap Julien Grall
2021-05-12 22:44   ` Stefano Stabellini
2021-05-13 18:09     ` Julien Grall
2021-05-13 22:27       ` Stefano Stabellini
2021-05-15  8:48         ` Julien Grall
2021-05-18  0:37           ` Stefano Stabellini
2021-04-25 20:13 ` [PATCH RFCv2 11/15] xen/arm: mm: Allow page-table allocation from the boot allocator Julien Grall
2021-05-13 22:58   ` Stefano Stabellini
2021-04-25 20:13 ` [PATCH RFCv2 12/15] xen/arm: add Persistent Map (PMAP) infrastructure Julien Grall
2021-04-26  9:41   ` Xia, Hongyan
2021-07-03 17:57     ` Julien Grall
2021-04-28 21:47   ` Wei Liu
2021-05-14 23:25   ` Stefano Stabellini
2021-05-15  8:54     ` Julien Grall
2021-04-25 20:13 ` [PATCH RFCv2 13/15] xen/arm: mm: Use the PMAP helpers in xen_{,un}map_table() Julien Grall
2021-05-14 23:35   ` Stefano Stabellini
2021-05-15  9:03     ` Julien Grall
2021-04-25 20:13 ` [PATCH RFCv2 14/15] xen/arm: mm: Rework setup_xenheap_mappings() Julien Grall
2021-05-14 23:51   ` Stefano Stabellini
2021-05-15  9:21     ` Julien Grall
2021-05-18  0:50       ` Stefano Stabellini
2021-04-25 20:13 ` [PATCH RFCv2 15/15] xen/arm: mm: Re-implement setup_frame_table_mappings() with map_pages_to_xen() Julien Grall
2021-05-15  0:02   ` Stefano Stabellini
2021-05-15  9:25     ` Julien Grall
2021-05-18  0:51       ` Stefano Stabellini

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