[PATCH] KVM: VMX: restore vmx_vmexit alignment

From: Jon Kohler
Date: Wed May 31 2023 - 11:59:18 EST


Commit 8bd200d23ec4 ("KVM: VMX: Flatten __vmx_vcpu_run()") changed
vmx_vmexit from SYM_FUNC_START to SYM_INNER_LABEL, accidentally
removing 16 byte alignment as SYM_FUNC_START uses SYM_A_ALIGN and
SYM_INNER_LABEL does not. Josh mentioned [1] this was unintentional.

Fix by changing to SYM_INNER_LABEL_ALIGN instead.

[1] https://lore.kernel.org/lkml/Y3adkSe%2FJ70PqUyt@p183

Fixes: 8bd200d23ec4 ("KVM: VMX: Flatten __vmx_vcpu_run()")
Signed-off-by: Jon Kohler <jon@xxxxxxxxxxx>
Suggested-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
CC: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
---
arch/x86/kvm/vmx/vmenter.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx/vmenter.S b/arch/x86/kvm/vmx/vmenter.S
index 631fd7da2bc3..07e927d4d099 100644
--- a/arch/x86/kvm/vmx/vmenter.S
+++ b/arch/x86/kvm/vmx/vmenter.S
@@ -187,7 +187,7 @@ SYM_FUNC_START(__vmx_vcpu_run)
_ASM_EXTABLE(.Lvmresume, .Lfixup)
_ASM_EXTABLE(.Lvmlaunch, .Lfixup)

-SYM_INNER_LABEL(vmx_vmexit, SYM_L_GLOBAL)
+SYM_INNER_LABEL_ALIGN(vmx_vmexit, SYM_L_GLOBAL)

/* Restore unwind state from before the VMRESUME/VMLAUNCH. */
UNWIND_HINT_RESTORE
--
2.30.1 (Apple Git-130)