summaryrefslogtreecommitdiffstats
path: root/arch/x86/kernel/machine_kexec_64.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/kernel/machine_kexec_64.c')
-rw-r--r--arch/x86/kernel/machine_kexec_64.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
index b180d8e49..cc0f7f70b 100644
--- a/arch/x86/kernel/machine_kexec_64.c
+++ b/arch/x86/kernel/machine_kexec_64.c
@@ -295,8 +295,15 @@ void machine_kexec_cleanup(struct kimage *image)
void machine_kexec(struct kimage *image)
{
unsigned long page_list[PAGES_NR];
- void *control_page;
+ unsigned int host_mem_enc_active;
int save_ftrace_enabled;
+ void *control_page;
+
+ /*
+ * This must be done before load_segments() since if call depth tracking
+ * is used then GS must be valid to make any function calls.
+ */
+ host_mem_enc_active = cc_platform_has(CC_ATTR_HOST_MEM_ENCRYPT);
#ifdef CONFIG_KEXEC_JUMP
if (image->preserve_context)
@@ -358,7 +365,7 @@ void machine_kexec(struct kimage *image)
(unsigned long)page_list,
image->start,
image->preserve_context,
- cc_platform_has(CC_ATTR_HOST_MEM_ENCRYPT));
+ host_mem_enc_active);
#ifdef CONFIG_KEXEC_JUMP
if (image->preserve_context)