michaelh/zephyr
1
0
Fork 0
Code Releases Activity

x86: remove unused thread arch member

Browse source 
The PDPT was moved to the stack area since it has alignment
requirements, but never removed from here.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2019-10-19 12:56:56 -07:00 • committed by Andrew Boie
commit f82beb984d
1 changed files with 0 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

18
arch/x86/include/ia32/kernel_arch_thread.h
View file

@ -231,24 +231,6 @@ struct _thread_arch {
* struct without ill effect. * struct without ill effect.
*/ */
tPreempFloatReg preempFloatReg; /* volatile float register storage */ tPreempFloatReg preempFloatReg; /* volatile float register storage */
#ifdef CONFIG_USERSPACE
/* Per-thread page directory pointer table when a thread is running
* in user mode.
*
* With KPTI enabled, any privilege elevation while that thread is
* running, or ISR will switch to the master kernel pdpt at
* z_x86_kernel_pdpt; the memory domain policy will not apply at
* all.
*
* With KPTI disabled, this pdpt will be active at all times when
* the thread is running. This has implications for memory domain
* partitions that are read-only!!
*
* See #17833 for more discussion.
*/
__aligned(0x20) struct x86_mmu_pdpt user_pdpt;
#endif /* CONFIG_USERSPACE */
}; };
typedef struct _thread_arch _thread_arch_t; typedef struct _thread_arch _thread_arch_t;