Messages in this thread Patch in this message | | | From | Juergen Gross <> | Subject | [PATCH v3 02/11] x86/xen: don't indicate DCA support in pv domains | Date | Tue, 18 Apr 2017 08:31:10 +0200 |
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Xen doesn't support DCA (direct cache access) for pv domains. Clear the corresponding capability indicator.
Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.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 6dc922e3848a..bd69868909b4 100644 --- a/arch/x86/xen/enlighten_pv.c +++ b/arch/x86/xen/enlighten_pv.c @@ -331,6 +331,7 @@ static void __init xen_init_capabilities(void) { setup_clear_cpu_cap(X86_BUG_SYSRET_SS_ATTRS); setup_force_cpu_cap(X86_FEATURE_XENPV); + setup_clear_cpu_cap(X86_FEATURE_DCA); } static void xen_set_debugreg(int reg, unsigned long val) -- 2.12.0
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