kernel/x86: add ability to set GS segment base from userland

Needed for Wine. Co-authored-by: Jérôme Duval <[email protected]> Change-Id: I13f6a5802fce04fd2ebb4cc01ecd2f12c90830db Reviewed-on: https://review.haiku-os.org/c/haiku/+/4839 Reviewed-by: Jérôme Duval <[email protected]> Reviewed-by: X512 <[email protected]> Reviewed-by: Fredrik Holmqvist <[email protected]> Reviewed-by: waddlesplash <[email protected]> Tested-by: Commit checker robot <[email protected]>
2022-03-09 18:28:00 +00:00
parent 397102c17d
commit b19f5c839b
4 changed files with 48 additions and 0 deletions
@@ -48,6 +48,8 @@ struct arch_thread {

 	uintptr_t*		current_stack;
 	uintptr_t		instruction_pointer;
+
+	uint64			user_gs_base;
 #else
 	struct farcall	current_stack;
 	struct farcall	interrupt_stack;