Commit a18a0f6850d4 ("x86, microcode: Don't initialize microcode code on
paravirt") added a paravirt test in microcode_init(), primarily to avoid
making mc_bp_resume()->load_ucode_ap()->check_loader_disabled_ap() calls
On 32-bit kernels this callchain ends up using __pa_nodebug() macro
which is invalid for Xen PV guests.
A subsequent commit, fbae4ba8c4a3 ("x86, microcode: Reload microcode on
resume"), eliminated this callchain thus making a18a0f6850d4
unnecessary.
Signed-off-by: Boris Ostrovsky <boris.ostrov...@oracle.com>
---
arch/x86/kernel/cpu/microcode/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/microcode/core.c
b/arch/x86/kernel/cpu/microcode/core.c
index cea8552..ac360bf 100644
--- a/arch/x86/kernel/cpu/microcode/core.c
+++ b/arch/x86/kernel/cpu/microcode/core.c
@@ -623,7 +623,7 @@ int __init microcode_init(void)
struct cpuinfo_x86 *c = &boot_cpu_data;
int error;
- if (paravirt_enabled() || dis_ucode_ldr)
+ if (dis_ucode_ldr)
return -EINVAL;
if (c->x86_vendor == X86_VENDOR_INTEL)
--
2.1.0
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