[PATCHv2 0/4] x86: Reduce code duplication on page table initialization

Kirill A. Shutemov
2024-08-14T12:46:20Z

Use kernel_ident_mapping_init() to initialize kernel page tables where
possible, replacing manual initialization, reducing code duplication.

v2:
- A separate patch to change what PA is mapped at relocate_kernel() VA.
- Improve commit messages;
- Add Reveiwed-by from Kai;

Kirill A. Shutemov (4):
x86/mm/ident_map: Fix virtual address wrap to zero
x86/acpi: Replace manual page table initialization with
kernel_ident_mapping_init()
x86/64/kexec: Map original relocate_kernel() in
init_transition_pgtable()
x86/64/kexec: Rewrite init_transition_pgtable() with
kernel_ident_mapping_init()

arch/x86/include/asm/kexec.h | 5 +-
arch/x86/kernel/acpi/madt_wakeup.c | 73 +++++-------------------
arch/x86/kernel/machine_kexec_64.c | 89 +++++++++++-------------------
arch/x86/mm/ident_map.c | 14 +----
4 files changed, 50 insertions(+), 131 deletions(-)

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2.43.0