Commits
Xiaoyao Li committed 2238246ff8d
x86/boot: Make the GDT 8-byte aligned The segment descriptors are loaded with an implicitly LOCK-ed instruction, which could trigger the split lock #AC exception if the variable is not properly aligned and crosses a cache line. Align the GDT properly so the descriptors are all 8 byte aligned. Signed-off-by: Xiaoyao Li <xiaoyao.li@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Link: https://lkml.kernel.org/r/20190627045525.105266-1-xiaoyao.li@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>