Displaying 20 results from an estimated 38 matches for "hypervisor_pin_vcpu".
2016 Apr 01
2
[PATCH v3 5/6] virt, sched: add cpu pinning to smp_call_sync_on_phys_cpu()
...@@ -758,9 +759,14 @@ struct smp_sync_call_struct {
> static void smp_call_sync_callback(struct work_struct *work)
> {
> struct smp_sync_call_struct *sscs;
> + unsigned int cpu;
>
> sscs = container_of(work, struct smp_sync_call_struct, work);
> + cpu = get_cpu();
> + hypervisor_pin_vcpu(cpu);
> sscs->ret = sscs->func(sscs->data);
> + hypervisor_pin_vcpu(-1);
> + put_cpu();
>
> complete(&sscs->done);
> }
So I don't really like this; it adds the requirement that the function
cannot schedule, which greatly limits the utility of the constr...
2016 Apr 01
2
[PATCH v3 5/6] virt, sched: add cpu pinning to smp_call_sync_on_phys_cpu()
...@@ -758,9 +759,14 @@ struct smp_sync_call_struct {
> static void smp_call_sync_callback(struct work_struct *work)
> {
> struct smp_sync_call_struct *sscs;
> + unsigned int cpu;
>
> sscs = container_of(work, struct smp_sync_call_struct, work);
> + cpu = get_cpu();
> + hypervisor_pin_vcpu(cpu);
> sscs->ret = sscs->func(sscs->data);
> + hypervisor_pin_vcpu(-1);
> + put_cpu();
>
> complete(&sscs->done);
> }
So I don't really like this; it adds the requirement that the function
cannot schedule, which greatly limits the utility of the constr...
2016 Mar 21
0
[PATCH v2 5/6] virt, sched: add cpu pinning to smp_call_sync_on_phys_cpu()
...u)(int);
};
extern const struct hypervisor_x86 *x86_hyper;
@@ -56,6 +59,12 @@ extern const struct hypervisor_x86 x86_hyper_kvm;
extern void init_hypervisor(struct cpuinfo_x86 *c);
extern void init_hypervisor_platform(void);
extern bool hypervisor_x2apic_available(void);
+
+static inline void hypervisor_pin_vcpu(int cpu)
+{
+ if (x86_hyper->pin_vcpu)
+ x86_hyper->pin_vcpu(cpu);
+}
#else
static inline void init_hypervisor(struct cpuinfo_x86 *c) { }
static inline void init_hypervisor_platform(void) { }
diff --git a/include/linux/hypervisor.h b/include/linux/hypervisor.h
new file mode 100644
index 0...
2016 Apr 01
0
[PATCH v3 5/6] virt, sched: add cpu pinning to smp_call_sync_on_phys_cpu()
...u)(int);
};
extern const struct hypervisor_x86 *x86_hyper;
@@ -56,6 +59,12 @@ extern const struct hypervisor_x86 x86_hyper_kvm;
extern void init_hypervisor(struct cpuinfo_x86 *c);
extern void init_hypervisor_platform(void);
extern bool hypervisor_x2apic_available(void);
+
+static inline void hypervisor_pin_vcpu(int cpu)
+{
+ if (x86_hyper->pin_vcpu)
+ x86_hyper->pin_vcpu(cpu);
+}
#else
static inline void init_hypervisor(struct cpuinfo_x86 *c) { }
static inline void init_hypervisor_platform(void) { }
diff --git a/include/linux/hypervisor.h b/include/linux/hypervisor.h
new file mode 100644
index 0...
2016 Apr 05
0
[PATCH v4 3/6] smp: add function to execute a function synchronously on a cpu
...ruct completion done;
+ int (*func)(void *);
+ void *data;
+ int ret;
+ int cpu;
+};
+
+static void smp_call_on_cpu_callback(struct work_struct *work)
+{
+ struct smp_call_on_cpu_struct *sscs;
+
+ sscs = container_of(work, struct smp_call_on_cpu_struct, work);
+ if (sscs->cpu >= 0)
+ hypervisor_pin_vcpu(sscs->cpu);
+ sscs->ret = sscs->func(sscs->data);
+ if (sscs->cpu >= 0)
+ hypervisor_pin_vcpu(-1);
+
+ complete(&sscs->done);
+}
+
+int smp_call_on_cpu(unsigned int cpu, bool pin, int (*func)(void *), void *par)
+{
+ struct smp_call_on_cpu_struct sscs = {
+ .work = __WORK...
2016 Apr 06
0
[PATCH v5 3/6] smp: add function to execute a function synchronously on a cpu
...ruct completion done;
+ int (*func)(void *);
+ void *data;
+ int ret;
+ int cpu;
+};
+
+static void smp_call_on_cpu_callback(struct work_struct *work)
+{
+ struct smp_call_on_cpu_struct *sscs;
+
+ sscs = container_of(work, struct smp_call_on_cpu_struct, work);
+ if (sscs->cpu >= 0)
+ hypervisor_pin_vcpu(sscs->cpu);
+ sscs->ret = sscs->func(sscs->data);
+ if (sscs->cpu >= 0)
+ hypervisor_pin_vcpu(-1);
+
+ complete(&sscs->done);
+}
+
+int smp_call_on_cpu(unsigned int cpu, int (*func)(void *), void *par, bool phys)
+{
+ struct smp_call_on_cpu_struct sscs = {
+ .work = __WOR...
2016 Apr 01
8
[PATCH v3 0/6] Support calling functions on dedicated physical cpu
Some hardware (e.g. Dell Studio laptops) require special functions to
be called on physical cpu 0 in order to avoid occasional hangs. When
running as dom0 under Xen this could be achieved only via special boot
parameters (vcpu pinning) limiting the hypervisor in it's scheduling
decisions.
This patch series is adding a generic function to be able to temporarily
pin a (virtual) cpu to a
2016 Apr 01
8
[PATCH v3 0/6] Support calling functions on dedicated physical cpu
Some hardware (e.g. Dell Studio laptops) require special functions to
be called on physical cpu 0 in order to avoid occasional hangs. When
running as dom0 under Xen this could be achieved only via special boot
parameters (vcpu pinning) limiting the hypervisor in it's scheduling
decisions.
This patch series is adding a generic function to be able to temporarily
pin a (virtual) cpu to a
2016 Apr 01
0
[PATCH v3 5/6] virt, sched: add cpu pinning to smp_call_sync_on_phys_cpu()
...sync_call_struct {
>> static void smp_call_sync_callback(struct work_struct *work)
>> {
>> struct smp_sync_call_struct *sscs;
>> + unsigned int cpu;
>>
>> sscs = container_of(work, struct smp_sync_call_struct, work);
>> + cpu = get_cpu();
>> + hypervisor_pin_vcpu(cpu);
>> sscs->ret = sscs->func(sscs->data);
>> + hypervisor_pin_vcpu(-1);
>> + put_cpu();
>>
>> complete(&sscs->done);
>> }
>
> So I don't really like this; it adds the requirement that the function
> cannot schedule, which g...
2016 Apr 01
2
[PATCH v3 5/6] virt, sched: add cpu pinning to smp_call_sync_on_phys_cpu()
...void smp_call_sync_callback(struct work_struct *work)
> >> {
> >> struct smp_sync_call_struct *sscs;
> >> + unsigned int cpu;
> >>
> >> sscs = container_of(work, struct smp_sync_call_struct, work);
> >> + cpu = get_cpu();
> >> + hypervisor_pin_vcpu(cpu);
> >> sscs->ret = sscs->func(sscs->data);
> >> + hypervisor_pin_vcpu(-1);
> >> + put_cpu();
> >>
> >> complete(&sscs->done);
> >> }
> >
> > So I don't really like this; it adds the requirement that th...
2016 Apr 01
2
[PATCH v3 5/6] virt, sched: add cpu pinning to smp_call_sync_on_phys_cpu()
...void smp_call_sync_callback(struct work_struct *work)
> >> {
> >> struct smp_sync_call_struct *sscs;
> >> + unsigned int cpu;
> >>
> >> sscs = container_of(work, struct smp_sync_call_struct, work);
> >> + cpu = get_cpu();
> >> + hypervisor_pin_vcpu(cpu);
> >> sscs->ret = sscs->func(sscs->data);
> >> + hypervisor_pin_vcpu(-1);
> >> + put_cpu();
> >>
> >> complete(&sscs->done);
> >> }
> >
> > So I don't really like this; it adds the requirement that th...
2016 Mar 21
8
[PATCH v2 0/6] Support calling functions on dedicated physical cpu
Some hardware (e.g. Dell Studio laptops) require special functions to
be called on physical cpu 0 in order to avoid occasional hangs. When
running as dom0 under Xen this could be achieved only via special boot
parameters (vcpu pinning) limiting the hypervisor in it's scheduling
decisions.
This patch series is adding a generic function to be able to temporarily
pin a (virtual) cpu to a
2016 Mar 21
8
[PATCH v2 0/6] Support calling functions on dedicated physical cpu
Some hardware (e.g. Dell Studio laptops) require special functions to
be called on physical cpu 0 in order to avoid occasional hangs. When
running as dom0 under Xen this could be achieved only via special boot
parameters (vcpu pinning) limiting the hypervisor in it's scheduling
decisions.
This patch series is adding a generic function to be able to temporarily
pin a (virtual) cpu to a
2016 Apr 06
0
[PATCH v5 2/6] virt, sched: add generic vcpu pinning support
...(*pin_vcpu)(int);
};
extern const struct hypervisor_x86 *x86_hyper;
@@ -56,6 +59,7 @@ extern const struct hypervisor_x86 x86_hyper_kvm;
extern void init_hypervisor(struct cpuinfo_x86 *c);
extern void init_hypervisor_platform(void);
extern bool hypervisor_x2apic_available(void);
+extern void hypervisor_pin_vcpu(int cpu);
#else
static inline void init_hypervisor(struct cpuinfo_x86 *c) { }
static inline void init_hypervisor_platform(void) { }
diff --git a/arch/x86/kernel/cpu/hypervisor.c b/arch/x86/kernel/cpu/hypervisor.c
index 73d391a..ff108f8 100644
--- a/arch/x86/kernel/cpu/hypervisor.c
+++ b/arch/x86...
2016 Aug 29
6
[PATCH v6 0/6] Support calling functions on dedicated physical cpu
Some hardware (e.g. Dell Studio laptops) require special functions to
be called on physical cpu 0 in order to avoid occasional hangs. When
running as dom0 under Xen this could be achieved only via special boot
parameters (vcpu pinning) limiting the hypervisor in it's scheduling
decisions.
This patch series is adding a generic function to be able to temporarily
pin a (virtual) cpu to a
2016 Aug 29
6
[PATCH v6 0/6] Support calling functions on dedicated physical cpu
Some hardware (e.g. Dell Studio laptops) require special functions to
be called on physical cpu 0 in order to avoid occasional hangs. When
running as dom0 under Xen this could be achieved only via special boot
parameters (vcpu pinning) limiting the hypervisor in it's scheduling
decisions.
This patch series is adding a generic function to be able to temporarily
pin a (virtual) cpu to a
2017 Dec 22
0
[PATCH 4.14 064/159] x86/virt, x86/platform: Merge struct x86_hyper into struct x86_platform and struct x86_init
...x86_hyper_runtime runtime;
};
extern const struct hypervisor_x86 *x86_hyper;
@@ -58,17 +53,7 @@ extern const struct hypervisor_x86 x86_h
extern const struct hypervisor_x86 x86_hyper_kvm;
extern void init_hypervisor_platform(void);
-extern bool hypervisor_x2apic_available(void);
-extern void hypervisor_pin_vcpu(int cpu);
-
-static inline void hypervisor_init_mem_mapping(void)
-{
- if (x86_hyper && x86_hyper->init_mem_mapping)
- x86_hyper->init_mem_mapping();
-}
#else
static inline void init_hypervisor_platform(void) { }
-static inline bool hypervisor_x2apic_available(void) { return false;...
2018 Jan 22
0
[PATCH 1/6] jailhouse: Provide detection for non-x86 systems
...clude/linux/hypervisor.h b/include/linux/hypervisor.h
index b19563f9a8eb..fc08b433c856 100644
--- a/include/linux/hypervisor.h
+++ b/include/linux/hypervisor.h
@@ -8,15 +8,28 @@
*/
#ifdef CONFIG_X86
+
+#include <asm/jailhouse_para.h>
#include <asm/x86_init.h>
+
static inline void hypervisor_pin_vcpu(int cpu)
{
x86_platform.hyper.pin_vcpu(cpu);
}
-#else
+
+#else /* !CONFIG_X86 */
+
+#include <linux/of.h>
+
static inline void hypervisor_pin_vcpu(int cpu)
{
}
-#endif
+
+static inline bool jailhouse_paravirt(void)
+{
+ return of_find_compatible_node(NULL, NULL, "jailhouse,cell&qu...
2018 Mar 01
0
[PATCH v3 1/6] jailhouse: Provide detection for non-x86 systems
...clude/linux/hypervisor.h b/include/linux/hypervisor.h
index b19563f9a8eb..fc08b433c856 100644
--- a/include/linux/hypervisor.h
+++ b/include/linux/hypervisor.h
@@ -8,15 +8,28 @@
*/
#ifdef CONFIG_X86
+
+#include <asm/jailhouse_para.h>
#include <asm/x86_init.h>
+
static inline void hypervisor_pin_vcpu(int cpu)
{
x86_platform.hyper.pin_vcpu(cpu);
}
-#else
+
+#else /* !CONFIG_X86 */
+
+#include <linux/of.h>
+
static inline void hypervisor_pin_vcpu(int cpu)
{
}
-#endif
+
+static inline bool jailhouse_paravirt(void)
+{
+ return of_find_compatible_node(NULL, NULL, "jailhouse,cell&qu...
2018 Mar 04
0
[PATCH v4 1/7] jailhouse: Provide detection for non-x86 systems
...clude/linux/hypervisor.h b/include/linux/hypervisor.h
index b19563f9a8eb..fc08b433c856 100644
--- a/include/linux/hypervisor.h
+++ b/include/linux/hypervisor.h
@@ -8,15 +8,28 @@
*/
#ifdef CONFIG_X86
+
+#include <asm/jailhouse_para.h>
#include <asm/x86_init.h>
+
static inline void hypervisor_pin_vcpu(int cpu)
{
x86_platform.hyper.pin_vcpu(cpu);
}
-#else
+
+#else /* !CONFIG_X86 */
+
+#include <linux/of.h>
+
static inline void hypervisor_pin_vcpu(int cpu)
{
}
-#endif
+
+static inline bool jailhouse_paravirt(void)
+{
+ return of_find_compatible_node(NULL, NULL, "jailhouse,cell&qu...