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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 009a0b52-a8ca-4a30-33c2-08d643fe4a99 X-MS-Exchange-CrossTenant-originalarrivaltime: 06 Nov 2018 15:41:17.4854 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR12MB1801 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org MBA software controller support is available only on Intel. Suggested-by: Fenghua Yu Signed-off-by: Babu Moger --- arch/x86/kernel/cpu/resctrl_rdtgroup.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/resctrl_rdtgroup.c b/arch/x86/kernel/cpu/r= esctrl_rdtgroup.c index 8b6b4a8bb7ca..022a56096024 100644 --- a/arch/x86/kernel/cpu/resctrl_rdtgroup.c +++ b/arch/x86/kernel/cpu/resctrl_rdtgroup.c @@ -1878,7 +1878,10 @@ static int parse_rdtgroupfs_options(char *data) if (ret) goto out; } else if (!strcmp(token, "mba_MBps")) { - ret =3D set_mba_sc(true); + if (boot_cpu_data.x86_vendor =3D=3D X86_VENDOR_INTEL) + ret =3D set_mba_sc(true); + else + ret =3D -EINVAL; if (ret) goto out; } else { --=20 2.17.1