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Peter Anvin" , Larry Woodman , Jonathan Corbet , "Michael S. Tsirkin" , Ingo Molnar , Andrey Ryabinin , Dave Young , Rik van Riel , Arnd Bergmann , Borislav Petkov , Andy Lutomirski , Boris Ostrovsky , Dmitry Vyukov , Juergen Gross , xen-devel@lists.xen.org, Thomas Gleixner , Paolo Bonzini Subject: [Xen-devel] [PATCH v10 32/38] xen/x86: Remove SME feature in PV guests X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP Xen does not currently support SME for PV guests. Clear the SME CPU capability in order to avoid any ambiguity. Cc: Cc: Boris Ostrovsky Cc: Juergen Gross Reviewed-by: Borislav Petkov Reviewed-by: Juergen Gross Signed-off-by: Tom Lendacky --- 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 290bc5a..df19217 100644 --- a/arch/x86/xen/enlighten_pv.c +++ b/arch/x86/xen/enlighten_pv.c @@ -263,6 +263,7 @@ 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); /* * Xen PV would need some work to support PCID: CR3 handling as well