[PATCH v8 RESEND 32/38] xen/x86: Remove SME feature in PV guests

Tom Lendacky
2017-06-27T15:13:35Z

Xen does not currently support SME for PV guests. Clear the SME CPU
capability in order to avoid any ambiguity.

Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
arch/x86/xen/enlighten_pv.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index f33eef4..e6ecf42 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -294,6 +294,7 @@ static void __init xen_init_capabilities(void)
setup_clear_cpu_cap(X86_FEATURE_MTRR);
setup_clear_cpu_cap(X86_FEATURE_ACC);
setup_clear_cpu_cap(X86_FEATURE_X2APIC);
+ setup_clear_cpu_cap(X86_FEATURE_SME);

if (!xen_initial_domain())
setup_clear_cpu_cap(X86_FEATURE_ACPI);