No functional change, but it performs a bit better.
Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com>
---
CC: Jan Beulich <jbeul...@suse.com>
CC: Roger Pau Monné <roger....@citrix.com>
v2:
* Rebase over metadata changes.
---
xen/arch/x86/x86_64/kexec_reloc.S | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/xen/arch/x86/x86_64/kexec_reloc.S
b/xen/arch/x86/x86_64/kexec_reloc.S
index 9f40c80d7c4b..50ba454abd48 100644
--- a/xen/arch/x86/x86_64/kexec_reloc.S
+++ b/xen/arch/x86/x86_64/kexec_reloc.S
@@ -19,6 +19,7 @@
#include <xen/kimage.h>
#include <asm/asm_defns.h>
+#include <asm/cache.h>
#include <asm/msr-index.h>
#include <asm/page.h>
#include <asm/machine_kexec.h>
@@ -174,6 +175,9 @@ FUNC_LOCAL(compatibility_mode)
ud2
END(compatibility_mode)
+ /* Separate code and data into into different cache lines */
+ .balign L1_CACHE_BYTES
+
DATA_LOCAL(compat_mode_gdt_desc, 4)
.word .Lcompat_mode_gdt_end - compat_mode_gdt -1
.quad 0x0000000000000000 /* set in call_32_bit above */
--
2.39.5
