[ck] [PATCH openEuler v1 070/119] openEuler: arm64/mpam: print mpam caps info when booting

From: Xie XiuQi <xiexiuqi(a)huawei.com> commit 6330b3511142934199dfbd9d273e2c5a13c59a23 openEuler-1.0 hulk inclusion category: feature bugzilla: 5510 CVE: NA Signed-off-by: Xie XiuQi <xiexiuqi(a)huawei.com> Reviewed-by: Hanjun Guo <guohanjun(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> Signed-off-by: Xin Hao <haoxing990(a)gmail.com> --- arch/arm64/kernel/mpam.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kernel/mpam.c b/arch/arm64/kernel/mpam.c index b83fd581fca7..4261c64f2a12 100644 --- a/arch/arm64/kernel/mpam.c +++ b/arch/arm64/kernel/mpam.c @@ -406,8 +406,10 @@ static __init bool get_rdt_mon_resources(void) static __init bool get_resctrl_resources(void) { - if (!cpus_have_const_cap(ARM64_HAS_MPAM)) + if (!cpus_have_const_cap(ARM64_HAS_MPAM)) { + pr_info("This cpu don't support MPAM feature: pfr0: %016llx\n", read_sysreg_s(SYS_ID_AA64PFR0_EL1)); return false; + } rdt_alloc_capable = get_rdt_alloc_resources(); rdt_mon_capable = get_rdt_mon_resources(); -- 2.31.0