From: Juergen Gross <jgross@suse.com>
To: linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org
Cc: boris.ostrovsky@oracle.com, Juergen Gross <jgross@suse.com>
Subject: [PATCH v2 02/11] x86/xen: don't indicate DCA support in pv domains
Date: Thu, 13 Apr 2017 12:11:07 +0200 [thread overview]
Message-ID: <20170413101116.723-3-jgross@suse.com> (raw)
In-Reply-To: <20170413101116.723-1-jgross@suse.com>
Xen doesn't support DCA (direct cache access) for pv domains. Clear
the corresponding capability indicator.
Signed-off-by: Juergen Gross <jgross@suse.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
next prev parent reply other threads:[~2017-04-13 10:14 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-13 10:11 [PATCH v2 00/11] x86: xen cpuid() cleanup Juergen Gross
2017-04-13 10:11 ` [PATCH v2 01/11] xen: set cpu capabilities from xen_start_kernel() Juergen Gross
2017-04-13 10:11 ` Juergen Gross [this message]
2017-04-13 10:11 ` [PATCH v2 03/11] x86/xen: use capabilities instead of fake cpuid values for aperf Juergen Gross
2017-04-13 10:11 ` [PATCH v2 04/11] x86/xen: use capabilities instead of fake cpuid values for mtrr Juergen Gross
2017-04-13 10:11 ` [PATCH v2 05/11] x86/xen: use capabilities instead of fake cpuid values for acc Juergen Gross
2017-04-13 10:11 ` [PATCH v2 06/11] x86/xen: use capabilities instead of fake cpuid values for acpi Juergen Gross
2017-04-13 10:11 ` [PATCH v2 07/11] x86/xen: use capabilities instead of fake cpuid values for mwait Juergen Gross
2017-04-13 10:11 ` [PATCH v2 08/11] x86/xen: use capabilities instead of fake cpuid values for x2apic Juergen Gross
2017-04-13 10:11 ` [PATCH v2 09/11] x86/xen: use capabilities instead of fake cpuid values for xsave Juergen Gross
2017-04-13 10:35 ` [Xen-devel] " Andrew Cooper
2017-04-13 10:11 ` [PATCH v2 10/11] vmware: set cpu capabilities during platform initialization Juergen Gross
2017-04-13 10:29 ` Alok Kataria
2017-04-13 10:11 ` [PATCH v2 11/11] x86/cpu: remove hypervisor specific set_cpu_features Juergen Gross
2017-04-13 13:39 ` [PATCH v2 00/11] x86: xen cpuid() cleanup Boris Ostrovsky
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