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[PATCH v9 05/13] x86/resctrl: Detect and configure Slow Memory Bandwidth Allocation

Babu Moger posted 13 patches 2 years, 9 months ago
[PATCH v9 05/13] x86/resctrl: Detect and configure Slow Memory Bandwidth Allocation
Posted by Babu Moger 2 years, 9 months ago 
The QoS slow memory configuration details are available via
CPUID_Fn80000020_EDX_x02. Detect the available details and
initialize the rest to defaults.

Signed-off-by: Babu Moger <babu.moger@amd.com>
---
 arch/x86/include/asm/msr-index.h          |    1 +
 arch/x86/kernel/cpu/resctrl/core.c        |   36 +++++++++++++++++++++++++++--
 arch/x86/kernel/cpu/resctrl/ctrlmondata.c |    2 +-
 arch/x86/kernel/cpu/resctrl/rdtgroup.c    |    8 ++++--
 4 files changed, 41 insertions(+), 6 deletions(-)

diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 37ff47552bcb..e0a40027aa62 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -1061,6 +1061,7 @@
 
 /* - AMD: */
 #define MSR_IA32_MBA_BW_BASE		0xc0000200
+#define MSR_IA32_SMBA_BW_BASE		0xc0000280
 
 /* MSR_IA32_VMX_MISC bits */
 #define MSR_IA32_VMX_MISC_INTEL_PT                 (1ULL << 14)
diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c
index 10a8c9d96f32..b4fc851f6489 100644
--- a/arch/x86/kernel/cpu/resctrl/core.c
+++ b/arch/x86/kernel/cpu/resctrl/core.c
@@ -162,6 +162,13 @@ bool is_mba_sc(struct rdt_resource *r)
 	if (!r)
 		return rdt_resources_all[RDT_RESOURCE_MBA].r_resctrl.membw.mba_sc;
 
+	/*
+	 * The software controller support is only applicable to MBA resource.
+	 * Make sure to check for resource type.
+	 */
+	if (r->rid != RDT_RESOURCE_MBA)
+		return false;
+
 	return r->membw.mba_sc;
 }
 
@@ -225,9 +232,15 @@ static bool __rdt_get_mem_config_amd(struct rdt_resource *r)
 	struct rdt_hw_resource *hw_res = resctrl_to_arch_res(r);
 	union cpuid_0x10_3_eax eax;
 	union cpuid_0x10_x_edx edx;
-	u32 ebx, ecx;
+	u32 ebx, ecx, subleaf;
 
-	cpuid_count(0x80000020, 1, &eax.full, &ebx, &ecx, &edx.full);
+	/*
+	 * Query CPUID_Fn80000020_EDX_x01 for MBA and
+	 * CPUID_Fn80000020_EDX_x02 for SMBA
+	 */
+	subleaf = (r->rid == RDT_RESOURCE_SMBA) ? 2 :  1;
+
+	cpuid_count(0x80000020, subleaf, &eax.full, &ebx, &ecx, &edx.full);
 	hw_res->num_closid = edx.split.cos_max + 1;
 	r->default_ctrl = MAX_MBA_BW_AMD;
 
@@ -750,6 +763,19 @@ static __init bool get_mem_config(void)
 	return false;
 }
 
+static __init bool get_slow_mem_config(void)
+{
+	struct rdt_hw_resource *hw_res = &rdt_resources_all[RDT_RESOURCE_SMBA];
+
+	if (!rdt_cpu_has(X86_FEATURE_SMBA))
+		return false;
+
+	if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
+		return __rdt_get_mem_config_amd(&hw_res->r_resctrl);
+
+	return false;
+}
+
 static __init bool get_rdt_alloc_resources(void)
 {
 	struct rdt_resource *r;
@@ -780,6 +806,9 @@ static __init bool get_rdt_alloc_resources(void)
 	if (get_mem_config())
 		ret = true;
 
+	if (get_slow_mem_config())
+		ret = true;
+
 	return ret;
 }
 
@@ -869,6 +898,9 @@ static __init void rdt_init_res_defs_amd(void)
 		} else if (r->rid == RDT_RESOURCE_MBA) {
 			hw_res->msr_base = MSR_IA32_MBA_BW_BASE;
 			hw_res->msr_update = mba_wrmsr_amd;
+		} else if (r->rid == RDT_RESOURCE_SMBA) {
+			hw_res->msr_base = MSR_IA32_SMBA_BW_BASE;
+			hw_res->msr_update = mba_wrmsr_amd;
 		}
 	}
 }
diff --git a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
index 1df0e3262bca..2dd4b8c47f23 100644
--- a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
+++ b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
@@ -209,7 +209,7 @@ static int parse_line(char *line, struct resctrl_schema *s,
 	unsigned long dom_id;
 
 	if (rdtgrp->mode == RDT_MODE_PSEUDO_LOCKSETUP &&
-	    r->rid == RDT_RESOURCE_MBA) {
+	    (r->rid == RDT_RESOURCE_MBA || r->rid == RDT_RESOURCE_SMBA)) {
 		rdt_last_cmd_puts("Cannot pseudo-lock MBA resource\n");
 		return -EINVAL;
 	}
diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
index e5a48f05e787..8a3dafc0dbf7 100644
--- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
+++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
@@ -1213,7 +1213,7 @@ static bool rdtgroup_mode_test_exclusive(struct rdtgroup *rdtgrp)
 
 	list_for_each_entry(s, &resctrl_schema_all, list) {
 		r = s->res;
-		if (r->rid == RDT_RESOURCE_MBA)
+		if (r->rid == RDT_RESOURCE_MBA || r->rid == RDT_RESOURCE_SMBA)
 			continue;
 		has_cache = true;
 		list_for_each_entry(d, &r->domains, list) {
@@ -1402,7 +1402,8 @@ static int rdtgroup_size_show(struct kernfs_open_file *of,
 					ctrl = resctrl_arch_get_config(r, d,
 								       closid,
 								       type);
-				if (r->rid == RDT_RESOURCE_MBA)
+				if (r->rid == RDT_RESOURCE_MBA ||
+				    r->rid == RDT_RESOURCE_SMBA)
 					size = ctrl;
 				else
 					size = rdtgroup_cbm_to_size(r, d, ctrl);
@@ -2845,7 +2846,8 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp)
 
 	list_for_each_entry(s, &resctrl_schema_all, list) {
 		r = s->res;
-		if (r->rid == RDT_RESOURCE_MBA) {
+		if (r->rid == RDT_RESOURCE_MBA ||
+		    r->rid == RDT_RESOURCE_SMBA) {
 			rdtgroup_init_mba(r, rdtgrp->closid);
 			if (is_mba_sc(r))
 				continue;
Re: [PATCH v9 05/13] x86/resctrl: Detect and configure Slow Memory Bandwidth Allocation
Posted by Reinette Chatre 2 years, 9 months ago 
Hi Babu,

On 12/1/2022 7:36 AM, Babu Moger wrote:
> The QoS slow memory configuration details are available via
> CPUID_Fn80000020_EDX_x02. Detect the available details and
> initialize the rest to defaults.
> 
> Signed-off-by: Babu Moger <babu.moger@amd.com>
> ---
>  arch/x86/include/asm/msr-index.h          |    1 +
>  arch/x86/kernel/cpu/resctrl/core.c        |   36 +++++++++++++++++++++++++++--
>  arch/x86/kernel/cpu/resctrl/ctrlmondata.c |    2 +-
>  arch/x86/kernel/cpu/resctrl/rdtgroup.c    |    8 ++++--
>  4 files changed, 41 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
> index 37ff47552bcb..e0a40027aa62 100644
> --- a/arch/x86/include/asm/msr-index.h
> +++ b/arch/x86/include/asm/msr-index.h
> @@ -1061,6 +1061,7 @@
>  
>  /* - AMD: */
>  #define MSR_IA32_MBA_BW_BASE		0xc0000200
> +#define MSR_IA32_SMBA_BW_BASE		0xc0000280
>  
>  /* MSR_IA32_VMX_MISC bits */
>  #define MSR_IA32_VMX_MISC_INTEL_PT                 (1ULL << 14)
> diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c
> index 10a8c9d96f32..b4fc851f6489 100644
> --- a/arch/x86/kernel/cpu/resctrl/core.c
> +++ b/arch/x86/kernel/cpu/resctrl/core.c
> @@ -162,6 +162,13 @@ bool is_mba_sc(struct rdt_resource *r)
>  	if (!r)
>  		return rdt_resources_all[RDT_RESOURCE_MBA].r_resctrl.membw.mba_sc;
>  
> +	/*
> +	 * The software controller support is only applicable to MBA resource.
> +	 * Make sure to check for resource type.
> +	 */
> +	if (r->rid != RDT_RESOURCE_MBA)
> +		return false;
> +
>  	return r->membw.mba_sc;
>  }
>  
> @@ -225,9 +232,15 @@ static bool __rdt_get_mem_config_amd(struct rdt_resource *r)
>  	struct rdt_hw_resource *hw_res = resctrl_to_arch_res(r);
>  	union cpuid_0x10_3_eax eax;
>  	union cpuid_0x10_x_edx edx;
> -	u32 ebx, ecx;
> +	u32 ebx, ecx, subleaf;
>  
> -	cpuid_count(0x80000020, 1, &eax.full, &ebx, &ecx, &edx.full);
> +	/*
> +	 * Query CPUID_Fn80000020_EDX_x01 for MBA and
> +	 * CPUID_Fn80000020_EDX_x02 for SMBA
> +	 */
> +	subleaf = (r->rid == RDT_RESOURCE_SMBA) ? 2 :  1;
> +
> +	cpuid_count(0x80000020, subleaf, &eax.full, &ebx, &ecx, &edx.full);
>  	hw_res->num_closid = edx.split.cos_max + 1;
>  	r->default_ctrl = MAX_MBA_BW_AMD;
>  
> @@ -750,6 +763,19 @@ static __init bool get_mem_config(void)
>  	return false;
>  }
>  
> +static __init bool get_slow_mem_config(void)
> +{
> +	struct rdt_hw_resource *hw_res = &rdt_resources_all[RDT_RESOURCE_SMBA];
> +
> +	if (!rdt_cpu_has(X86_FEATURE_SMBA))
> +		return false;
> +
> +	if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
> +		return __rdt_get_mem_config_amd(&hw_res->r_resctrl);
> +
> +	return false;
> +}
> +
>  static __init bool get_rdt_alloc_resources(void)
>  {
>  	struct rdt_resource *r;
> @@ -780,6 +806,9 @@ static __init bool get_rdt_alloc_resources(void)
>  	if (get_mem_config())
>  		ret = true;
>  
> +	if (get_slow_mem_config())
> +		ret = true;
> +
>  	return ret;
>  }
>  
> @@ -869,6 +898,9 @@ static __init void rdt_init_res_defs_amd(void)
>  		} else if (r->rid == RDT_RESOURCE_MBA) {
>  			hw_res->msr_base = MSR_IA32_MBA_BW_BASE;
>  			hw_res->msr_update = mba_wrmsr_amd;
> +		} else if (r->rid == RDT_RESOURCE_SMBA) {
> +			hw_res->msr_base = MSR_IA32_SMBA_BW_BASE;
> +			hw_res->msr_update = mba_wrmsr_amd;
>  		}
>  	}
>  }
> diff --git a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
> index 1df0e3262bca..2dd4b8c47f23 100644
> --- a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
> +++ b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
> @@ -209,7 +209,7 @@ static int parse_line(char *line, struct resctrl_schema *s,
>  	unsigned long dom_id;
>  
>  	if (rdtgrp->mode == RDT_MODE_PSEUDO_LOCKSETUP &&
> -	    r->rid == RDT_RESOURCE_MBA) {
> +	    (r->rid == RDT_RESOURCE_MBA || r->rid == RDT_RESOURCE_SMBA)) {
>  		rdt_last_cmd_puts("Cannot pseudo-lock MBA resource\n");
>  		return -EINVAL;
>  	}
> diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
> index e5a48f05e787..8a3dafc0dbf7 100644
> --- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
> +++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
> @@ -1213,7 +1213,7 @@ static bool rdtgroup_mode_test_exclusive(struct rdtgroup *rdtgrp)
>  
>  	list_for_each_entry(s, &resctrl_schema_all, list) {
>  		r = s->res;
> -		if (r->rid == RDT_RESOURCE_MBA)
> +		if (r->rid == RDT_RESOURCE_MBA || r->rid == RDT_RESOURCE_SMBA)
>  			continue;
>  		has_cache = true;
>  		list_for_each_entry(d, &r->domains, list) {
> @@ -1402,7 +1402,8 @@ static int rdtgroup_size_show(struct kernfs_open_file *of,
>  					ctrl = resctrl_arch_get_config(r, d,
>  								       closid,
>  								       type);
> -				if (r->rid == RDT_RESOURCE_MBA)
> +				if (r->rid == RDT_RESOURCE_MBA ||
> +				    r->rid == RDT_RESOURCE_SMBA)
>  					size = ctrl;
>  				else
>  					size = rdtgroup_cbm_to_size(r, d, ctrl);
> @@ -2845,7 +2846,8 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp)
>  
>  	list_for_each_entry(s, &resctrl_schema_all, list) {
>  		r = s->res;
> -		if (r->rid == RDT_RESOURCE_MBA) {
> +		if (r->rid == RDT_RESOURCE_MBA ||
> +		    r->rid == RDT_RESOURCE_SMBA) {
>  			rdtgroup_init_mba(r, rdtgrp->closid);
>  			if (is_mba_sc(r))
>  				continue;
> 
> 

Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>

Reinette
RE: [PATCH v9 05/13] x86/resctrl: Detect and configure Slow Memory Bandwidth Allocation
Posted by Moger, Babu 2 years, 9 months ago 
[AMD Official Use Only - General]



> -----Original Message-----
> From: Reinette Chatre <reinette.chatre@intel.com>
> Sent: Thursday, December 15, 2022 11:14 AM
> To: Moger, Babu <Babu.Moger@amd.com>; corbet@lwn.net;
> tglx@linutronix.de; mingo@redhat.com; bp@alien8.de
> Cc: fenghua.yu@intel.com; dave.hansen@linux.intel.com; x86@kernel.org;
> hpa@zytor.com; paulmck@kernel.org; akpm@linux-foundation.org;
> quic_neeraju@quicinc.com; rdunlap@infradead.org;
> damien.lemoal@opensource.wdc.com; songmuchun@bytedance.com;
> peterz@infradead.org; jpoimboe@kernel.org; pbonzini@redhat.com;
> chang.seok.bae@intel.com; pawan.kumar.gupta@linux.intel.com;
> jmattson@google.com; daniel.sneddon@linux.intel.com; Das1, Sandipan
> <Sandipan.Das@amd.com>; tony.luck@intel.com; james.morse@arm.com;
> linux-doc@vger.kernel.org; linux-kernel@vger.kernel.org;
> bagasdotme@gmail.com; eranian@google.com; christophe.leroy@csgroup.eu;
> jarkko@kernel.org; adrian.hunter@intel.com; quic_jiles@quicinc.com;
> peternewman@google.com
> Subject: Re: [PATCH v9 05/13] x86/resctrl: Detect and configure Slow Memory
> Bandwidth Allocation
> 
> Hi Babu,
> 
> On 12/1/2022 7:36 AM, Babu Moger wrote:
> > The QoS slow memory configuration details are available via
> > CPUID_Fn80000020_EDX_x02. Detect the available details and initialize
> > the rest to defaults.
> >
> > Signed-off-by: Babu Moger <babu.moger@amd.com>
> > ---
> >  arch/x86/include/asm/msr-index.h          |    1 +
> >  arch/x86/kernel/cpu/resctrl/core.c        |   36
> +++++++++++++++++++++++++++--
> >  arch/x86/kernel/cpu/resctrl/ctrlmondata.c |    2 +-
> >  arch/x86/kernel/cpu/resctrl/rdtgroup.c    |    8 ++++--
> >  4 files changed, 41 insertions(+), 6 deletions(-)
> >
> > diff --git a/arch/x86/include/asm/msr-index.h
> > b/arch/x86/include/asm/msr-index.h
> > index 37ff47552bcb..e0a40027aa62 100644
> > --- a/arch/x86/include/asm/msr-index.h
> > +++ b/arch/x86/include/asm/msr-index.h
> > @@ -1061,6 +1061,7 @@
> >
> >  /* - AMD: */
> >  #define MSR_IA32_MBA_BW_BASE		0xc0000200
> > +#define MSR_IA32_SMBA_BW_BASE		0xc0000280
> >
> >  /* MSR_IA32_VMX_MISC bits */
> >  #define MSR_IA32_VMX_MISC_INTEL_PT                 (1ULL << 14)
> > diff --git a/arch/x86/kernel/cpu/resctrl/core.c
> > b/arch/x86/kernel/cpu/resctrl/core.c
> > index 10a8c9d96f32..b4fc851f6489 100644
> > --- a/arch/x86/kernel/cpu/resctrl/core.c
> > +++ b/arch/x86/kernel/cpu/resctrl/core.c
> > @@ -162,6 +162,13 @@ bool is_mba_sc(struct rdt_resource *r)
> >  	if (!r)
> >  		return
> rdt_resources_all[RDT_RESOURCE_MBA].r_resctrl.membw.mba_sc;
> >
> > +	/*
> > +	 * The software controller support is only applicable to MBA resource.
> > +	 * Make sure to check for resource type.
> > +	 */
> > +	if (r->rid != RDT_RESOURCE_MBA)
> > +		return false;
> > +
> >  	return r->membw.mba_sc;
> >  }
> >
> > @@ -225,9 +232,15 @@ static bool __rdt_get_mem_config_amd(struct
> rdt_resource *r)
> >  	struct rdt_hw_resource *hw_res = resctrl_to_arch_res(r);
> >  	union cpuid_0x10_3_eax eax;
> >  	union cpuid_0x10_x_edx edx;
> > -	u32 ebx, ecx;
> > +	u32 ebx, ecx, subleaf;
> >
> > -	cpuid_count(0x80000020, 1, &eax.full, &ebx, &ecx, &edx.full);
> > +	/*
> > +	 * Query CPUID_Fn80000020_EDX_x01 for MBA and
> > +	 * CPUID_Fn80000020_EDX_x02 for SMBA
> > +	 */
> > +	subleaf = (r->rid == RDT_RESOURCE_SMBA) ? 2 :  1;
> > +
> > +	cpuid_count(0x80000020, subleaf, &eax.full, &ebx, &ecx, &edx.full);
> >  	hw_res->num_closid = edx.split.cos_max + 1;
> >  	r->default_ctrl = MAX_MBA_BW_AMD;
> >
> > @@ -750,6 +763,19 @@ static __init bool get_mem_config(void)
> >  	return false;
> >  }
> >
> > +static __init bool get_slow_mem_config(void) {
> > +	struct rdt_hw_resource *hw_res =
> > +&rdt_resources_all[RDT_RESOURCE_SMBA];
> > +
> > +	if (!rdt_cpu_has(X86_FEATURE_SMBA))
> > +		return false;
> > +
> > +	if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
> > +		return __rdt_get_mem_config_amd(&hw_res->r_resctrl);
> > +
> > +	return false;
> > +}
> > +
> >  static __init bool get_rdt_alloc_resources(void)  {
> >  	struct rdt_resource *r;
> > @@ -780,6 +806,9 @@ static __init bool get_rdt_alloc_resources(void)
> >  	if (get_mem_config())
> >  		ret = true;
> >
> > +	if (get_slow_mem_config())
> > +		ret = true;
> > +
> >  	return ret;
> >  }
> >
> > @@ -869,6 +898,9 @@ static __init void rdt_init_res_defs_amd(void)
> >  		} else if (r->rid == RDT_RESOURCE_MBA) {
> >  			hw_res->msr_base = MSR_IA32_MBA_BW_BASE;
> >  			hw_res->msr_update = mba_wrmsr_amd;
> > +		} else if (r->rid == RDT_RESOURCE_SMBA) {
> > +			hw_res->msr_base = MSR_IA32_SMBA_BW_BASE;
> > +			hw_res->msr_update = mba_wrmsr_amd;
> >  		}
> >  	}
> >  }
> > diff --git a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
> > b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
> > index 1df0e3262bca..2dd4b8c47f23 100644
> > --- a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
> > +++ b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
> > @@ -209,7 +209,7 @@ static int parse_line(char *line, struct resctrl_schema
> *s,
> >  	unsigned long dom_id;
> >
> >  	if (rdtgrp->mode == RDT_MODE_PSEUDO_LOCKSETUP &&
> > -	    r->rid == RDT_RESOURCE_MBA) {
> > +	    (r->rid == RDT_RESOURCE_MBA || r->rid ==
> RDT_RESOURCE_SMBA)) {
> >  		rdt_last_cmd_puts("Cannot pseudo-lock MBA resource\n");
> >  		return -EINVAL;
> >  	}
> > diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
> > b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
> > index e5a48f05e787..8a3dafc0dbf7 100644
> > --- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
> > +++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
> > @@ -1213,7 +1213,7 @@ static bool rdtgroup_mode_test_exclusive(struct
> > rdtgroup *rdtgrp)
> >
> >  	list_for_each_entry(s, &resctrl_schema_all, list) {
> >  		r = s->res;
> > -		if (r->rid == RDT_RESOURCE_MBA)
> > +		if (r->rid == RDT_RESOURCE_MBA || r->rid ==
> RDT_RESOURCE_SMBA)
> >  			continue;
> >  		has_cache = true;
> >  		list_for_each_entry(d, &r->domains, list) { @@ -1402,7
> +1402,8 @@
> > static int rdtgroup_size_show(struct kernfs_open_file *of,
> >  					ctrl = resctrl_arch_get_config(r, d,
> >  								       closid,
> >  								       type);
> > -				if (r->rid == RDT_RESOURCE_MBA)
> > +				if (r->rid == RDT_RESOURCE_MBA ||
> > +				    r->rid == RDT_RESOURCE_SMBA)
> >  					size = ctrl;
> >  				else
> >  					size = rdtgroup_cbm_to_size(r, d, ctrl);
> @@ -2845,7 +2846,8 @@
> > static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp)
> >
> >  	list_for_each_entry(s, &resctrl_schema_all, list) {
> >  		r = s->res;
> > -		if (r->rid == RDT_RESOURCE_MBA) {
> > +		if (r->rid == RDT_RESOURCE_MBA ||
> > +		    r->rid == RDT_RESOURCE_SMBA) {
> >  			rdtgroup_init_mba(r, rdtgrp->closid);
> >  			if (is_mba_sc(r))
> >  				continue;
> >
> >
> 
> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>

Thank you
Babu
> 
> Reinette

Patchew 2.1-devel-b67e4c2

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