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[PATCH 07/11] x86/entry: Convert SWAPGS to swapgs in error_entry()



From: Lai Jiangshan <laijs@xxxxxxxxxxxxxxxxx>

XENPV doesn't use error_entry() anymore, so the pv-aware SWAPGS can be
changed to native swapgs.

Signed-off-by: Lai Jiangshan <laijs@xxxxxxxxxxxxxxxxx>
---
 arch/x86/entry/entry_64.S | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 383070aa9272..6100007fd03f 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -990,7 +990,7 @@ SYM_CODE_START_LOCAL(error_entry)
         * We entered from user mode or we're pretending to have entered
         * from user mode due to an IRET fault.
         */
-       SWAPGS
+       swapgs
        FENCE_SWAPGS_USER_ENTRY
        /* We have user CR3.  Change to kernel CR3. */
        SWITCH_TO_KERNEL_CR3 scratch_reg=%rax
@@ -1022,7 +1022,7 @@ SYM_CODE_START_LOCAL(error_entry)
         * gsbase and proceed.  We'll fix up the exception and land in
         * .Lgs_change's error handler with kernel gsbase.
         */
-       SWAPGS
+       swapgs
 
        /*
         * Issue an LFENCE to prevent GS speculation, regardless of whether it 
is a
@@ -1043,7 +1043,7 @@ SYM_CODE_START_LOCAL(error_entry)
         * We came from an IRET to user mode, so we have user
         * gsbase and CR3.  Switch to kernel gsbase and CR3:
         */
-       SWAPGS
+       swapgs
        FENCE_SWAPGS_USER_ENTRY
        SWITCH_TO_KERNEL_CR3 scratch_reg=%rax
 
-- 
2.19.1.6.gb485710b




 


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