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-rw-r--r--arch/x86/kernel/cpu/amd.c3
-rw-r--r--arch/x86/kernel/sev.c11
2 files changed, 10 insertions, 4 deletions
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index a7eab05e5f29..f322ebd053a9 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -1320,6 +1320,9 @@ static void zenbleed_check_cpu(void *unused)
void amd_check_microcode(void)
{
+ if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD)
+ return;
+
on_each_cpu(zenbleed_check_cpu, NULL, 1);
}
diff --git a/arch/x86/kernel/sev.c b/arch/x86/kernel/sev.c
index 70472eebe719..c67285824e82 100644
--- a/arch/x86/kernel/sev.c
+++ b/arch/x86/kernel/sev.c
@@ -1234,10 +1234,6 @@ void setup_ghcb(void)
if (!cc_platform_has(CC_ATTR_GUEST_STATE_ENCRYPT))
return;
- /* First make sure the hypervisor talks a supported protocol. */
- if (!sev_es_negotiate_protocol())
- sev_es_terminate(SEV_TERM_SET_GEN, GHCB_SEV_ES_GEN_REQ);
-
/*
* Check whether the runtime #VC exception handler is active. It uses
* the per-CPU GHCB page which is set up by sev_es_init_vc_handling().
@@ -1255,6 +1251,13 @@ void setup_ghcb(void)
}
/*
+ * Make sure the hypervisor talks a supported protocol.
+ * This gets called only in the BSP boot phase.
+ */
+ if (!sev_es_negotiate_protocol())
+ sev_es_terminate(SEV_TERM_SET_GEN, GHCB_SEV_ES_GEN_REQ);
+
+ /*
* Clear the boot_ghcb. The first exception comes in before the bss
* section is cleared.
*/