mirror of https://gitee.com/openkylin/linux.git
x86/boot: Annotate data appropriately
Use the new SYM_DATA, SYM_DATA_START, and SYM_DATA_END* macros for data,
so that the data in the object file look sane:
Value Size Type Bind Vis Ndx Name
0000 10 OBJECT GLOBAL DEFAULT 3 efi32_boot_gdt
000a 10 OBJECT LOCAL DEFAULT 3 save_gdt
0014 8 OBJECT LOCAL DEFAULT 3 func_rt_ptr
001c 48 OBJECT GLOBAL DEFAULT 3 efi_gdt64
004c 0 OBJECT LOCAL DEFAULT 3 efi_gdt64_end
0000 48 OBJECT LOCAL DEFAULT 3 gdt
0030 0 OBJECT LOCAL DEFAULT 3 gdt_end
0030 8 OBJECT LOCAL DEFAULT 3 efi_config
0038 49 OBJECT GLOBAL DEFAULT 3 efi32_config
0069 49 OBJECT GLOBAL DEFAULT 3 efi64_config
All have correct size and type now.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Allison Randal <allison@lohutok.net>
Cc: Cao jin <caoj.fnst@cn.fujitsu.com>
Cc: Enrico Weigelt <info@metux.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: linux-arch@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wei Huang <wei@redhat.com>
Cc: x86-ml <x86@kernel.org>
Cc: Xiaoyao Li <xiaoyao.li@linux.intel.com>
Link: https://lkml.kernel.org/r/20191011115108.12392-13-jslaby@suse.cz
This commit is contained in:
Jiri Slaby
Borislav Petkov
parent
b1bd27b9ad
commit
b8c3f9b554
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@ -176,16 +176,19 @@ ENDPROC(efi_enter32)
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.data
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.balign 8
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.global efi32_boot_gdt
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efi32_boot_gdt: .word 0
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.quad 0
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SYM_DATA_START(efi32_boot_gdt)
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.word 0
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.quad 0
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SYM_DATA_END(efi32_boot_gdt)
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save_gdt: .word 0
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.quad 0
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func_rt_ptr: .quad 0
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SYM_DATA_START_LOCAL(save_gdt)
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.word 0
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.quad 0
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SYM_DATA_END(save_gdt)
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.global efi_gdt64
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efi_gdt64:
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SYM_DATA_LOCAL(func_rt_ptr, .quad 0)
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SYM_DATA_START(efi_gdt64)
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.word efi_gdt64_end - efi_gdt64
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.long 0 /* Filled out by user */
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.word 0
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@ -194,4 +197,4 @@ efi_gdt64:
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.quad 0x00cf92000000ffff /* __KERNEL_DS */
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.quad 0x0080890000000000 /* TS descriptor */
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.quad 0x0000000000000000 /* TS continued */
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efi_gdt64_end:
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SYM_DATA_END_LABEL(efi_gdt64, SYM_L_LOCAL, efi_gdt64_end)
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@ -659,11 +659,12 @@ SYM_FUNC_END(.Lno_longmode)
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#include "../../kernel/verify_cpu.S"
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.data
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gdt64:
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SYM_DATA_START_LOCAL(gdt64)
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.word gdt_end - gdt
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.quad 0
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SYM_DATA_END(gdt64)
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.balign 8
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gdt:
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SYM_DATA_START_LOCAL(gdt)
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.word gdt_end - gdt
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.long gdt
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.word 0
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@ -672,25 +673,24 @@ gdt:
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.quad 0x00cf92000000ffff /* __KERNEL_DS */
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.quad 0x0080890000000000 /* TS descriptor */
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.quad 0x0000000000000000 /* TS continued */
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gdt_end:
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SYM_DATA_END_LABEL(gdt, SYM_L_LOCAL, gdt_end)
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#ifdef CONFIG_EFI_STUB
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efi_config:
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.quad 0
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SYM_DATA_LOCAL(efi_config, .quad 0)
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#ifdef CONFIG_EFI_MIXED
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.global efi32_config
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efi32_config:
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SYM_DATA_START(efi32_config)
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.fill 5,8,0
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.quad efi64_thunk
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.byte 0
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SYM_DATA_END(efi32_config)
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#endif
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.global efi64_config
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efi64_config:
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SYM_DATA_START(efi64_config)
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.fill 5,8,0
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.quad efi_call
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.byte 1
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SYM_DATA_END(efi64_config)
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#endif /* CONFIG_EFI_STUB */
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/*
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@ -698,23 +698,21 @@ efi64_config:
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*/
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.bss
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.balign 4
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boot_heap:
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.fill BOOT_HEAP_SIZE, 1, 0
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boot_stack:
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SYM_DATA_LOCAL(boot_heap, .fill BOOT_HEAP_SIZE, 1, 0)
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SYM_DATA_START_LOCAL(boot_stack)
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.fill BOOT_STACK_SIZE, 1, 0
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boot_stack_end:
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SYM_DATA_END_LABEL(boot_stack, SYM_L_LOCAL, boot_stack_end)
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/*
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* Space for page tables (not in .bss so not zeroed)
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*/
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.section ".pgtable","a",@nobits
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.balign 4096
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pgtable:
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.fill BOOT_PGT_SIZE, 1, 0
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SYM_DATA_LOCAL(pgtable, .fill BOOT_PGT_SIZE, 1, 0)
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/*
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* The page table is going to be used instead of page table in the trampoline
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* memory.
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*/
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top_pgtable:
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.fill PAGE_SIZE, 1, 0
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SYM_DATA_LOCAL(top_pgtable, .fill PAGE_SIZE, 1, 0)
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@ -96,6 +96,5 @@ ENDPROC(set_sev_encryption_mask)
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#ifdef CONFIG_AMD_MEM_ENCRYPT
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.balign 8
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GLOBAL(sme_me_mask)
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.quad 0
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SYM_DATA(sme_me_mask, .quad 0)
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#endif
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@ -171,8 +171,8 @@ END(wakeup_gdt)
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/* This is the standard real-mode IDT */
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.balign 16
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.Lwakeup_idt:
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SYM_DATA_START_LOCAL(.Lwakeup_idt)
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.word 0xffff /* limit */
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.long 0 /* address */
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.word 0
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END(.Lwakeup_idt)
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SYM_DATA_END(.Lwakeup_idt)
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