Displaying 20 results from an estimated 29 matches for "flush_tlb_info".
2019 Jun 26
2
[PATCH 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
...VOP_VCALL0(mmu.flush_tlb_user);
>> @@ -62,6 +64,12 @@ static inline void __flush_tlb_one_user(unsigned long addr)
>> PVOP_VCALL1(mmu.flush_tlb_one_user, addr);
>> }
>>
>> +static inline void flush_tlb_multi(const struct cpumask *cpumask,
>> + const struct flush_tlb_info *info)
>> +{
>> + PVOP_VCALL2(mmu.flush_tlb_multi, cpumask, info);
>> +}
>> +
>> static inline void flush_tlb_others(const struct cpumask *cpumask,
>> const struct flush_tlb_info *info)
>> {
>> diff --git a/arch/x86/include/asm/paravirt_types....
2019 Jun 26
2
[PATCH 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
...VOP_VCALL0(mmu.flush_tlb_user);
>> @@ -62,6 +64,12 @@ static inline void __flush_tlb_one_user(unsigned long addr)
>> PVOP_VCALL1(mmu.flush_tlb_one_user, addr);
>> }
>>
>> +static inline void flush_tlb_multi(const struct cpumask *cpumask,
>> + const struct flush_tlb_info *info)
>> +{
>> + PVOP_VCALL2(mmu.flush_tlb_multi, cpumask, info);
>> +}
>> +
>> static inline void flush_tlb_others(const struct cpumask *cpumask,
>> const struct flush_tlb_info *info)
>> {
>> diff --git a/arch/x86/include/asm/paravirt_types....
2019 Jun 13
4
[PATCH 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
...ed);
+
static inline void __flush_tlb(void)
{
PVOP_VCALL0(mmu.flush_tlb_user);
@@ -62,6 +64,12 @@ static inline void __flush_tlb_one_user(unsigned long addr)
PVOP_VCALL1(mmu.flush_tlb_one_user, addr);
}
+static inline void flush_tlb_multi(const struct cpumask *cpumask,
+ const struct flush_tlb_info *info)
+{
+ PVOP_VCALL2(mmu.flush_tlb_multi, cpumask, info);
+}
+
static inline void flush_tlb_others(const struct cpumask *cpumask,
const struct flush_tlb_info *info)
{
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 946f8f1f1efc..b93b3d9...
2019 Jun 13
4
[PATCH 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
...ed);
+
static inline void __flush_tlb(void)
{
PVOP_VCALL0(mmu.flush_tlb_user);
@@ -62,6 +64,12 @@ static inline void __flush_tlb_one_user(unsigned long addr)
PVOP_VCALL1(mmu.flush_tlb_one_user, addr);
}
+static inline void flush_tlb_multi(const struct cpumask *cpumask,
+ const struct flush_tlb_info *info)
+{
+ PVOP_VCALL2(mmu.flush_tlb_multi, cpumask, info);
+}
+
static inline void flush_tlb_others(const struct cpumask *cpumask,
const struct flush_tlb_info *info)
{
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 946f8f1f1efc..b93b3d9...
2019 Jul 02
0
[PATCH v2 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
...rv/mmu.c
index e65d7fe6489f..1177f863e4cd 100644
--- a/arch/x86/hyperv/mmu.c
+++ b/arch/x86/hyperv/mmu.c
@@ -50,8 +50,8 @@ static inline int fill_gva_list(u64 gva_list[], int offset,
return gva_n - offset;
}
-static void hyperv_flush_tlb_others(const struct cpumask *cpus,
- const struct flush_tlb_info *info)
+static void hyperv_flush_tlb_multi(const struct cpumask *cpus,
+ const struct flush_tlb_info *info)
{
int cpu, vcpu, gva_n, max_gvas;
struct hv_tlb_flush **flush_pcpu;
@@ -59,7 +59,7 @@ static void hyperv_flush_tlb_others(const struct cpumask *cpus,
u64 status = U64_MAX;
unsi...
2019 Jun 25
0
[PATCH 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
...oid)
> {
> PVOP_VCALL0(mmu.flush_tlb_user);
> @@ -62,6 +64,12 @@ static inline void __flush_tlb_one_user(unsigned long addr)
> PVOP_VCALL1(mmu.flush_tlb_one_user, addr);
> }
>
> +static inline void flush_tlb_multi(const struct cpumask *cpumask,
> + const struct flush_tlb_info *info)
> +{
> + PVOP_VCALL2(mmu.flush_tlb_multi, cpumask, info);
> +}
> +
> static inline void flush_tlb_others(const struct cpumask *cpumask,
> const struct flush_tlb_info *info)
> {
> diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/para...
2019 Jul 22
2
[PATCH v3 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
...- smp_call_function_many(cond_cpumask, flush_tlb_func_remote,
> + __smp_call_function_many(cond_cpumask, flush_tlb_func_remote,
> + flush_tlb_func_local,
> (void *)info, 1);
> }
> }
Do we really need that _local/_remote distinction? ISTR you had a patch
that frobbed flush_tlb_info into the csd and that gave space
constraints, but I'm not seeing that here (probably a wise, get stuff
merged etc..).
struct __call_single_data {
struct llist_node llist; /* 0 8 */
smp_call_func_t func; /* 8 8 *...
2019 Jul 22
2
[PATCH v3 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
...- smp_call_function_many(cond_cpumask, flush_tlb_func_remote,
> + __smp_call_function_many(cond_cpumask, flush_tlb_func_remote,
> + flush_tlb_func_local,
> (void *)info, 1);
> }
> }
Do we really need that _local/_remote distinction? ISTR you had a patch
that frobbed flush_tlb_info into the csd and that gave space
constraints, but I'm not seeing that here (probably a wise, get stuff
merged etc..).
struct __call_single_data {
struct llist_node llist; /* 0 8 */
smp_call_func_t func; /* 8 8 *...
2019 May 25
3
[RFC PATCH 5/6] x86/mm/tlb: Flush remote and local TLBs concurrently
...ed);
+
static inline void __flush_tlb(void)
{
PVOP_VCALL0(mmu.flush_tlb_user);
@@ -62,6 +64,12 @@ static inline void __flush_tlb_one_user(unsigned long addr)
PVOP_VCALL1(mmu.flush_tlb_one_user, addr);
}
+static inline void flush_tlb_multi(const struct cpumask *cpumask,
+ const struct flush_tlb_info *info)
+{
+ PVOP_VCALL2(mmu.flush_tlb_multi, cpumask, info);
+}
+
static inline void flush_tlb_others(const struct cpumask *cpumask,
const struct flush_tlb_info *info)
{
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 946f8f1f1efc..3a156e6...
2019 May 25
3
[RFC PATCH 5/6] x86/mm/tlb: Flush remote and local TLBs concurrently
...ed);
+
static inline void __flush_tlb(void)
{
PVOP_VCALL0(mmu.flush_tlb_user);
@@ -62,6 +64,12 @@ static inline void __flush_tlb_one_user(unsigned long addr)
PVOP_VCALL1(mmu.flush_tlb_one_user, addr);
}
+static inline void flush_tlb_multi(const struct cpumask *cpumask,
+ const struct flush_tlb_info *info)
+{
+ PVOP_VCALL2(mmu.flush_tlb_multi, cpumask, info);
+}
+
static inline void flush_tlb_others(const struct cpumask *cpumask,
const struct flush_tlb_info *info)
{
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 946f8f1f1efc..3a156e6...
2019 Jul 19
0
[PATCH v3 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
...rv/mmu.c
index e65d7fe6489f..8740d8b21db3 100644
--- a/arch/x86/hyperv/mmu.c
+++ b/arch/x86/hyperv/mmu.c
@@ -50,8 +50,8 @@ static inline int fill_gva_list(u64 gva_list[], int offset,
return gva_n - offset;
}
-static void hyperv_flush_tlb_others(const struct cpumask *cpus,
- const struct flush_tlb_info *info)
+static void hyperv_flush_tlb_multi(const struct cpumask *cpus,
+ const struct flush_tlb_info *info)
{
int cpu, vcpu, gva_n, max_gvas;
struct hv_tlb_flush **flush_pcpu;
@@ -59,7 +59,7 @@ static void hyperv_flush_tlb_others(const struct cpumask *cpus,
u64 status = U64_MAX;
unsi...
2019 Jul 02
2
[PATCH v2 0/9] x86: Concurrent TLB flushes
Currently, local and remote TLB flushes are not performed concurrently,
which introduces unnecessary overhead - each INVLPG can take 100s of
cycles. This patch-set allows TLB flushes to be run concurrently: first
request the remote CPUs to initiate the flush, then run it locally, and
finally wait for the remote CPUs to finish their work.
In addition, there are various small optimizations to avoid
2019 May 31
2
[RFC PATCH v2 04/12] x86/mm/tlb: Flush remote and local TLBs concurrently
...ed);
+
static inline void __flush_tlb(void)
{
PVOP_VCALL0(mmu.flush_tlb_user);
@@ -62,6 +64,12 @@ static inline void __flush_tlb_one_user(unsigned long addr)
PVOP_VCALL1(mmu.flush_tlb_one_user, addr);
}
+static inline void flush_tlb_multi(const struct cpumask *cpumask,
+ const struct flush_tlb_info *info)
+{
+ PVOP_VCALL2(mmu.flush_tlb_multi, cpumask, info);
+}
+
static inline void flush_tlb_others(const struct cpumask *cpumask,
const struct flush_tlb_info *info)
{
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 946f8f1f1efc..3a156e6...
2019 May 31
2
[RFC PATCH v2 04/12] x86/mm/tlb: Flush remote and local TLBs concurrently
...ed);
+
static inline void __flush_tlb(void)
{
PVOP_VCALL0(mmu.flush_tlb_user);
@@ -62,6 +64,12 @@ static inline void __flush_tlb_one_user(unsigned long addr)
PVOP_VCALL1(mmu.flush_tlb_one_user, addr);
}
+static inline void flush_tlb_multi(const struct cpumask *cpumask,
+ const struct flush_tlb_info *info)
+{
+ PVOP_VCALL2(mmu.flush_tlb_multi, cpumask, info);
+}
+
static inline void flush_tlb_others(const struct cpumask *cpumask,
const struct flush_tlb_info *info)
{
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 946f8f1f1efc..3a156e6...
2019 Jul 19
5
[PATCH v3 0/9] x86: Concurrent TLB flushes
[ Cover-letter is identical to v2, including benchmark results,
excluding the change log. ]
Currently, local and remote TLB flushes are not performed concurrently,
which introduces unnecessary overhead - each INVLPG can take 100s of
cycles. This patch-set allows TLB flushes to be run concurrently: first
request the remote CPUs to initiate the flush, then run it locally, and
finally wait for
2019 Jun 26
0
[PATCH 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
On 6/25/19 7:35 PM, Nadav Amit wrote:
>>> const struct flush_tlb_info *f = info;
>>> + enum tlb_flush_reason reason;
>>> +
>>> + reason = (f->mm == NULL) ? TLB_LOCAL_SHOOTDOWN : TLB_LOCAL_MM_SHOOTDOWN;
>>
>> Should we just add the "reason" to flush_tlb_info? It's OK-ish to imply
>> it like this, but seems...
2019 Jul 22
0
[PATCH v3 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
...pumask, flush_tlb_func_remote,
>> + __smp_call_function_many(cond_cpumask, flush_tlb_func_remote,
>> + flush_tlb_func_local,
>> (void *)info, 1);
>> }
>> }
>
> Do we really need that _local/_remote distinction? ISTR you had a patch
> that frobbed flush_tlb_info into the csd and that gave space
> constraints, but I'm not seeing that here (probably a wise, get stuff
> merged etc..).
>
> struct __call_single_data {
> struct llist_node llist; /* 0 8 */
> smp_call_func_t func;...
2019 Jul 03
2
[PATCH v2 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
...e481e6e904 100644
> --- a/arch/x86/xen/mmu_pv.c
> +++ b/arch/x86/xen/mmu_pv.c
> @@ -1355,8 +1355,8 @@ static void xen_flush_tlb_one_user(unsigned long addr)
> preempt_enable();
> }
>
> -static void xen_flush_tlb_others(const struct cpumask *cpus,
> - const struct flush_tlb_info *info)
> +static void xen_flush_tlb_multi(const struct cpumask *cpus,
> + const struct flush_tlb_info *info)
> {
> struct {
> struct mmuext_op op;
> @@ -1366,7 +1366,7 @@ static void xen_flush_tlb_others(const struct cpumask *cpus,
> const size_t mc_entry_size =...
2019 Jul 03
2
[PATCH v2 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
...e481e6e904 100644
> --- a/arch/x86/xen/mmu_pv.c
> +++ b/arch/x86/xen/mmu_pv.c
> @@ -1355,8 +1355,8 @@ static void xen_flush_tlb_one_user(unsigned long addr)
> preempt_enable();
> }
>
> -static void xen_flush_tlb_others(const struct cpumask *cpus,
> - const struct flush_tlb_info *info)
> +static void xen_flush_tlb_multi(const struct cpumask *cpus,
> + const struct flush_tlb_info *info)
> {
> struct {
> struct mmuext_op op;
> @@ -1366,7 +1366,7 @@ static void xen_flush_tlb_others(const struct cpumask *cpus,
> const size_t mc_entry_size =...
2019 May 27
3
[RFC PATCH 5/6] x86/mm/tlb: Flush remote and local TLBs concurrently
.../kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -580,7 +580,7 @@ static void __init kvm_apf_trap_init(voi
static DEFINE_PER_CPU(cpumask_var_t, __pv_tlb_mask);
-static void kvm_flush_tlb_others(const struct cpumask *cpumask,
+static void kvm_flush_tlb_multi(const struct cpumask *cpumask,
const struct flush_tlb_info *info)
{
u8 state;
@@ -594,6 +594,9 @@ static void kvm_flush_tlb_others(const s
* queue flush_on_enter for pre-empted vCPUs
*/
for_each_cpu(cpu, flushmask) {
+ if (cpu == smp_processor_id())
+ continue;
+
src = &per_cpu(steal_time, cpu);
state = READ_ONCE(src->preempted);...