diff options
Diffstat (limited to 'arch/um/sys-x86_64/syscalls.c')
| -rw-r--r-- | arch/um/sys-x86_64/syscalls.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c index dd9914642b8..6f44f40204e 100644 --- a/arch/um/sys-x86_64/syscalls.c +++ b/arch/um/sys-x86_64/syscalls.c @@ -15,6 +15,7 @@ #include "asm/unistd.h" #include "asm/prctl.h" /* XXX This should get the constants from libc */ #include "choose-mode.h" +#include "kern.h" asmlinkage long sys_uname64(struct new_utsname __user * name) { @@ -132,23 +133,27 @@ static long arch_prctl_tt(int code, unsigned long addr) #ifdef CONFIG_MODE_SKAS +/* XXX: Must also call arch_prctl in the host, beside saving the segment bases! */ static long arch_prctl_skas(int code, unsigned long addr) { long ret = 0; switch(code){ - case ARCH_SET_GS: - current->thread.regs.regs.skas.regs[GS_BASE / sizeof(unsigned long)] = addr; - break; case ARCH_SET_FS: current->thread.regs.regs.skas.regs[FS_BASE / sizeof(unsigned long)] = addr; break; + case ARCH_SET_GS: + current->thread.regs.regs.skas.regs[GS_BASE / sizeof(unsigned long)] = addr; + break; case ARCH_GET_FS: - ret = put_user(current->thread.regs.regs.skas.regs[GS / sizeof(unsigned long)], &addr); + ret = put_user(current->thread.regs.regs.skas. + regs[FS_BASE / sizeof(unsigned long)], + (unsigned long __user *)addr); break; case ARCH_GET_GS: - ret = put_user(current->thread.regs.regs.skas.regs[FS / sizeof(unsigned \ -long)], &addr); + ret = put_user(current->thread.regs.regs.skas. + regs[GS_BASE / sizeof(unsigned long)], + (unsigned long __user *)addr); break; default: ret = -EINVAL; |