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| author | Vegard Nossum <vegard.nossum@oracle.com> | 2023-12-19 16:11:59 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2023-12-20 10:57:51 +0100 |
| commit | 3b184b71dfcb156e08246f8fbe0cd088c6a6efed (patch) | |
| tree | f04555f977d624f3c6a076ef06484080d42a1015 /arch/x86/kernel/head64.c | |
| parent | 1445f6e15f7ddd80311307475191e34c0b2312e8 (diff) | |
| download | linux-3b184b71dfcb156e08246f8fbe0cd088c6a6efed.tar.gz linux-3b184b71dfcb156e08246f8fbe0cd088c6a6efed.tar.bz2 linux-3b184b71dfcb156e08246f8fbe0cd088c6a6efed.zip | |
x86/asm: Always set A (accessed) flag in GDT descriptors
We have no known use for having the CPU track whether GDT descriptors
have been accessed or not.
Simplify the code by adding the flag to the common flags and removing
it everywhere else.
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20231219151200.2878271-5-vegard.nossum@oracle.com
Diffstat (limited to 'arch/x86/kernel/head64.c')
| -rw-r--r-- | arch/x86/kernel/head64.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index 00dbddfdfece..dc0956067944 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -71,9 +71,9 @@ EXPORT_SYMBOL(vmemmap_base); * GDT used on the boot CPU before switching to virtual addresses. */ static struct desc_struct startup_gdt[GDT_ENTRIES] __initdata = { - [GDT_ENTRY_KERNEL32_CS] = GDT_ENTRY_INIT(DESC_CODE32 | _DESC_ACCESSED, 0, 0xfffff), - [GDT_ENTRY_KERNEL_CS] = GDT_ENTRY_INIT(DESC_CODE64 | _DESC_ACCESSED, 0, 0xfffff), - [GDT_ENTRY_KERNEL_DS] = GDT_ENTRY_INIT(DESC_DATA64 | _DESC_ACCESSED, 0, 0xfffff), + [GDT_ENTRY_KERNEL32_CS] = GDT_ENTRY_INIT(DESC_CODE32, 0, 0xfffff), + [GDT_ENTRY_KERNEL_CS] = GDT_ENTRY_INIT(DESC_CODE64, 0, 0xfffff), + [GDT_ENTRY_KERNEL_DS] = GDT_ENTRY_INIT(DESC_DATA64, 0, 0xfffff), }; /* |