diff options
| author | Zeng Chi <zengchi@kylinos.cn> | 2026-09-21 18:24:42 +0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-09-22 08:36:16 -0700 |
| commit | 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d (patch) | |
| tree | 660d50d4139cb750fbde1ae3432452c20726c99d /scripts/module.lds.S | |
| download | linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.tar.gz linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.zip | |
KVM: Don't pre-reserve xarray entries when storing empty/NULL attributesgrafted
Skip the xarray reservation loop when clearing all memory attributes, as
storing NULL only erases the entry and never needs to allocate, so no
reservation (and no cleanup of a failed one) is required in that case.
Suggested-by: Sean Christopherson <seanjc@google.com>
Cc: David Ballesteros <davimaba.v@proton.me>
Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com
[sean: split to separate patch]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'scripts/module.lds.S')
| -rw-r--r-- | scripts/module.lds.S | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/scripts/module.lds.S b/scripts/module.lds.S new file mode 100644 index 000000000..d0f200428 --- /dev/null +++ b/scripts/module.lds.S @@ -0,0 +1,63 @@ +/* + * Common module linker script, always used when linking a module. + * Archs are free to supply their own linker scripts. ld will + * combine them automatically. + */ + +#include <asm-generic/codetag.lds.h> + +SECTIONS { + /DISCARD/ : { + *(.discard) + *(.discard.*) + *(.export_symbol) + *(.no_trim_symbol) + } + + __ksymtab 0 : ALIGN(8) { *(SORT(___ksymtab+*)) } + __kcrctab 0 : ALIGN(4) { *(SORT(___kcrctab+*)) } + __kflagstab 0 : ALIGN(1) { *(SORT(___kflagstab+*)) } + + .ctors 0 : ALIGN(8) { *(SORT(.ctors.*)) *(.ctors) } + .init_array 0 : ALIGN(8) { *(SORT(.init_array.*)) *(.init_array) } + + .altinstructions 0 : ALIGN(8) { KEEP(*(.altinstructions)) } + __bug_table 0 : ALIGN(8) { KEEP(*(__bug_table)) } + __jump_table 0 : ALIGN(8) { KEEP(*(__jump_table)) } + __ex_table 0 : ALIGN(4) { KEEP(*(__ex_table)) } + + __patchable_function_entries 0 : { *(__patchable_function_entries) } + + .init.klp_funcs 0 : ALIGN(8) { KEEP(*(.init.klp_funcs)) } + .init.klp_objects 0 : ALIGN(8) { KEEP(*(.init.klp_objects)) } + +#ifdef CONFIG_ARCH_USES_CFI_TRAPS + __kcfi_traps 0 : { KEEP(*(.kcfi_traps)) } +#endif + +#ifndef CONFIG_ARCH_WANTS_MODULES_TEXT_SECTIONS + .text 0 : { + *(.text .text.[0-9a-zA-Z_]*) + } +#endif + + .bss 0 : { + *(.bss .bss.[0-9a-zA-Z_]*) + *(.bss..L*) + } + + .data 0 : { + *(.data .data.[0-9a-zA-Z_]*) + *(.data..L*) + } + + .rodata 0 : { + *(.rodata .rodata.[0-9a-zA-Z_]*) + *(.rodata..L*) + } + + MOD_SEPARATE_CODETAG_SECTIONS() +} + +/* bring in arch-specific sections */ +#include <asm/module.lds.h> |