x86: adds paravirt hook for swapgs

This patch adds paravirt hook for swapgs operation, which is a privileged
operation in x86_64.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 072c1a08efe6..e7c17cc4a99e 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -390,6 +390,7 @@ struct pv_cpu_ops pv_cpu_ops = {
 
         .irq_enable_syscall_ret = native_irq_enable_syscall_ret,
         .iret = native_iret,
+        .swapgs = native_swapgs,
 
         .set_iopl_mask = native_set_iopl_mask,
         .io_delay = native_io_delay,