Kernel/linux-next
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2024-12-29 17:22:07 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

scripts/gdb: change VA_BITS_MIN when we use 16K page

Browse Source 
Change VA_BITS_MIN when we use 16K page.

Link: https://lkml.kernel.org/r/20240619074911.100434-6-kuan-ying.lee@canonical.com
Fixes: 9684ec186f ("arm64: Enable LPA2 at boot if supported by the system")
Signed-off-by: Kuan-Ying Lee <kuan-ying.lee@canonical.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Kuan-Ying Lee 2024-06-19 15:49:10 +08:00 committed by Andrew Morton
parent 04a40baec0
commit 7d8742bf85
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
scripts/gdb/linux/mm.py
View File

@ -47,7 +47,10 @@ class aarch64_page_ops():
self.VA_BITS = constants.LX_CONFIG_ARM64_VA_BITS
if self.VA_BITS > 48:
self.VA_BITS_MIN = 48
if constants.LX_CONFIG_ARM64_16K_PAGES:
self.VA_BITS_MIN = 47
else:
self.VA_BITS_MIN = 48
tcr_el1 = gdb.execute("info registers $TCR_EL1", to_string=True)
tcr_el1 = int(tcr_el1.split()[1], 16)
self.vabits_actual = 64 - ((tcr_el1 >> 16) & 63)