Implement all member functions of x86_page_ops strictly following the
logic of aarch64_page_ops.
This includes full support for SPARSEMEM and standard page translation
functions.
This fixes compatibility with 'lx-' commands on x86_64, preventing
AttributeErrors when using lx-pfn_to_page and others.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Seongjun Hong <[email protected]>
Cc: Jan Kiszka <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
We encounter the following issue after commit 9cce9c6c2c ("arm64: mm: Handle
LVA support as a CPU feature").
(gdb) lx-slabinfo
Python Exception <class 'gdb.error'>: No symbol "vabits_actual" in current context.
Error occurred in Python: No symbol "vabits_actual" in current context.
We set vabits_actual based on TCR_EL1 value when
VA_BITS is bigger than 48.
Link: https://lkml.kernel.org/r/[email protected]
Fixes: 9cce9c6c2c ("arm64: mm: Handle LVA support as a CPU feature")
Signed-off-by: Kuan-Ying Lee <[email protected]>
Cc: Jan Kiszka <[email protected]>
Cc: Kieran Bingham <[email protected]>
Cc: Kirill A. Shutemov <[email protected]>
Cc: Michael Ellerman <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
arc, arm64, parisc and powerpc all have their own Kconfig symbols
in place of the common CONFIG_PAGE_SIZE_4KB symbols. Change these
so the common symbols are the ones that are actually used, while
leaving the arhcitecture specific ones as the user visible
place for configuring it, to avoid breaking user configs.
Reviewed-by: Christophe Leroy <[email protected]> (powerpc32)
Acked-by: Catalin Marinas <[email protected]>
Acked-by: Helge Deller <[email protected]> # parisc
Reviewed-by: Thomas Gleixner <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
This command provides a way to traverse the entire page hierarchy by a
given virtual address on x86. In addition to qemu's commands info
tlb/info mem it provides the complete information about the paging
structure for an arbitrary virtual address. It supports 4KB/2MB/1GB and 5
level paging.
Here is an example output for 2MB success translation:
(gdb) translate-vm address
cr3:
cr3 binary data 0x1085be003
next entry physical address 0x1085be000
---
bit 3 page level write through False
bit 4 page level cache disabled False
level 4:
entry address 0xffff8881085be7f8
page entry binary data 0x800000010ac83067
next entry physical address 0x10ac83000
---
bit 0 entry present True
bit 1 read/write access allowed True
bit 2 user access allowed True
bit 3 page level write through False
bit 4 page level cache disabled False
bit 5 entry has been accessed True
bit 7 page size False
bit 11 restart to ordinary False
bit 63 execute disable True
level 3:
entry address 0xffff88810ac83a48
page entry binary data 0x101af7067
next entry physical address 0x101af7000
---
bit 0 entry present True
bit 1 read/write access allowed True
bit 2 user access allowed True
bit 3 page level write through False
bit 4 page level cache disabled False
bit 5 entry has been accessed True
bit 7 page size False
bit 11 restart to ordinary False
bit 63 execute disable False
level 2:
entry address 0xffff888101af7368
page entry binary data 0x80000001634008e7
page size 2MB
page physical address 0x163400000
---
bit 0 entry present True
bit 1 read/write access allowed True
bit 2 user access allowed True
bit 3 page level write through False
bit 4 page level cache disabled False
bit 5 entry has been accessed True
bit 7 page size True
bit 6 page dirty True
bit 8 global translation False
bit 11 restart to ordinary True
bit 12 pat False
bits (59, 62) protection key 0
bit 63 execute disable True
[[email protected]: add SPDX line, other tweaks]
Link: https://lkml.kernel.org/r/[email protected]
[[email protected]: s/physicall/physical/]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Dmitrii Bundin <[email protected]>
Acked by: Mike Rapoport (IBM) <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jan Kiszka <[email protected]>
Cc: Kieran Bingham <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Illia Ostapyshyn