Displaying 20 results from an estimated 136 matches for "kvm_para_has_featur".
Did you mean:
kvm_para_has_feature
2019 May 27
3
[RFC PATCH 5/6] x86/mm/tlb: Flush remote and local TLBs concurrently
...& KVM_VCPU_PREEMPTED)) {
@@ -603,7 +606,7 @@ static void kvm_flush_tlb_others(const s
}
}
- native_flush_tlb_others(flushmask, info);
+ native_flush_tlb_multi(flushmask, info);
}
static void __init kvm_guest_init(void)
@@ -628,9 +631,8 @@ static void __init kvm_guest_init(void)
if (kvm_para_has_feature(KVM_FEATURE_PV_TLB_FLUSH) &&
!kvm_para_has_hint(KVM_HINTS_REALTIME) &&
kvm_para_has_feature(KVM_FEATURE_STEAL_TIME)) {
- pv_ops.mmu.flush_tlb_others = kvm_flush_tlb_others;
+ pv_ops.mmu.flush_tlb_multi = kvm_flush_tlb_multi;
pv_ops.mmu.tlb_remove_table = tlb_remove...
2019 May 27
3
[RFC PATCH 5/6] x86/mm/tlb: Flush remote and local TLBs concurrently
...& KVM_VCPU_PREEMPTED)) {
@@ -603,7 +606,7 @@ static void kvm_flush_tlb_others(const s
}
}
- native_flush_tlb_others(flushmask, info);
+ native_flush_tlb_multi(flushmask, info);
}
static void __init kvm_guest_init(void)
@@ -628,9 +631,8 @@ static void __init kvm_guest_init(void)
if (kvm_para_has_feature(KVM_FEATURE_PV_TLB_FLUSH) &&
!kvm_para_has_hint(KVM_HINTS_REALTIME) &&
kvm_para_has_feature(KVM_FEATURE_STEAL_TIME)) {
- pv_ops.mmu.flush_tlb_others = kvm_flush_tlb_others;
+ pv_ops.mmu.flush_tlb_multi = kvm_flush_tlb_multi;
pv_ops.mmu.tlb_remove_table = tlb_remove...
2008 Apr 16
1
[PATCH] kvm: move kvmclock initialization inside kvm_guest_init
...)
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index d9121f9..5cad368 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -210,6 +210,8 @@ static void paravirt_ops_setup(void)
pv_info.name = "KVM";
pv_info.paravirt_enabled = 1;
+ kvmclock_init();
+
if (kvm_para_has_feature(KVM_FEATURE_NOP_IO_DELAY))
pv_cpu_ops.io_delay = kvm_io_delay;
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 65f3a23..029350c 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -771,10 +771,6 @@ void __init setup_arch(char **cmdline_p)...
2008 Apr 16
1
[PATCH] kvm: move kvmclock initialization inside kvm_guest_init
...)
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index d9121f9..5cad368 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -210,6 +210,8 @@ static void paravirt_ops_setup(void)
pv_info.name = "KVM";
pv_info.paravirt_enabled = 1;
+ kvmclock_init();
+
if (kvm_para_has_feature(KVM_FEATURE_NOP_IO_DELAY))
pv_cpu_ops.io_delay = kvm_io_delay;
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 65f3a23..029350c 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -771,10 +771,6 @@ void __init setup_arch(char **cmdline_p)...
2009 Nov 18
1
[PATCH] Replace kvm io delay pv-ops with linux magic
...AY */
-
#ifdef CONFIG_KVM_MMU
#define MMU_QUEUE_SIZE 1024
@@ -201,13 +192,12 @@ static void kvm_leave_lazy_mmu(void)
static void __init paravirt_ops_setup(void)
{
+ extern int io_delay_type;
pv_info.name = "KVM";
pv_info.paravirt_enabled = 1;
-#ifdef CONFIG_KVM_IODELAY
- if (kvm_para_has_feature(KVM_FEATURE_NOP_IO_DELAY))
- pv_cpu_ops.io_delay = kvm_io_delay;
-#endif
+ /* Disable IO delay */
+ io_delay_type = CONFIG_IO_DELAY_TYPE_NONE;
#ifdef CONFIG_KVM_MMU
if (kvm_para_has_feature(KVM_FEATURE_MMU_OP)) {
--
1.6.0.2
2009 Nov 18
1
[PATCH] Replace kvm io delay pv-ops with linux magic
...AY */
-
#ifdef CONFIG_KVM_MMU
#define MMU_QUEUE_SIZE 1024
@@ -201,13 +192,12 @@ static void kvm_leave_lazy_mmu(void)
static void __init paravirt_ops_setup(void)
{
+ extern int io_delay_type;
pv_info.name = "KVM";
pv_info.paravirt_enabled = 1;
-#ifdef CONFIG_KVM_IODELAY
- if (kvm_para_has_feature(KVM_FEATURE_NOP_IO_DELAY))
- pv_cpu_ops.io_delay = kvm_io_delay;
-#endif
+ /* Disable IO delay */
+ io_delay_type = CONFIG_IO_DELAY_TYPE_NONE;
#ifdef CONFIG_KVM_MMU
if (kvm_para_has_feature(KVM_FEATURE_MMU_OP)) {
--
1.6.0.2
2019 May 27
0
[RFC PATCH 5/6] x86/mm/tlb: Flush remote and local TLBs concurrently
...tatic void kvm_flush_tlb_others(const s
> }
> }
>
> - native_flush_tlb_others(flushmask, info);
> + native_flush_tlb_multi(flushmask, info);
> }
>
> static void __init kvm_guest_init(void)
> @@ -628,9 +631,8 @@ static void __init kvm_guest_init(void)
> if (kvm_para_has_feature(KVM_FEATURE_PV_TLB_FLUSH) &&
> !kvm_para_has_hint(KVM_HINTS_REALTIME) &&
> kvm_para_has_feature(KVM_FEATURE_STEAL_TIME)) {
> - pv_ops.mmu.flush_tlb_others = kvm_flush_tlb_others;
> + pv_ops.mmu.flush_tlb_multi = kvm_flush_tlb_multi;
> pv_ops.mmu.tlb_...
2016 Nov 15
2
[PATCH v7 06/11] x86, paravirt: Add interface to support kvm/xen vcpu preempted check
...0, 0);
}
-static bool kvm_vcpu_is_preempted(int cpu)
-{
- struct kvm_steal_time *src;
-
- src = &per_cpu(steal_time, cpu);
-
- return !!src->preempted;
-}
-
#ifdef CONFIG_SMP
static void __init kvm_smp_prepare_boot_cpu(void)
{
@@ -480,9 +471,6 @@ void __init kvm_guest_init(void)
if (kvm_para_has_feature(KVM_FEATURE_STEAL_TIME)) {
has_steal_clock = 1;
pv_time_ops.steal_clock = kvm_steal_clock;
-#ifdef CONFIG_PARAVIRT_SPINLOCKS
- pv_lock_ops.vcpu_is_preempted = kvm_vcpu_is_preempted;
-#endif
}
if (kvm_para_has_feature(KVM_FEATURE_PV_EOI))
@@ -604,6 +592,14 @@ static void kvm_wait(u8 *p...
2016 Nov 15
2
[PATCH v7 06/11] x86, paravirt: Add interface to support kvm/xen vcpu preempted check
...0, 0);
}
-static bool kvm_vcpu_is_preempted(int cpu)
-{
- struct kvm_steal_time *src;
-
- src = &per_cpu(steal_time, cpu);
-
- return !!src->preempted;
-}
-
#ifdef CONFIG_SMP
static void __init kvm_smp_prepare_boot_cpu(void)
{
@@ -480,9 +471,6 @@ void __init kvm_guest_init(void)
if (kvm_para_has_feature(KVM_FEATURE_STEAL_TIME)) {
has_steal_clock = 1;
pv_time_ops.steal_clock = kvm_steal_clock;
-#ifdef CONFIG_PARAVIRT_SPINLOCKS
- pv_lock_ops.vcpu_is_preempted = kvm_vcpu_is_preempted;
-#endif
}
if (kvm_para_has_feature(KVM_FEATURE_PV_EOI))
@@ -604,6 +592,14 @@ static void kvm_wait(u8 *p...
2016 Nov 16
0
[PATCH v7 06/11] x86, paravirt: Add interface to support kvm/xen vcpu preempted check
...> - struct kvm_steal_time *src;
> -
> - src = &per_cpu(steal_time, cpu);
> -
> - return !!src->preempted;
> -}
> -
> #ifdef CONFIG_SMP
> static void __init kvm_smp_prepare_boot_cpu(void)
> {
> @@ -480,9 +471,6 @@ void __init kvm_guest_init(void)
> if (kvm_para_has_feature(KVM_FEATURE_STEAL_TIME)) {
> has_steal_clock = 1;
> pv_time_ops.steal_clock = kvm_steal_clock;
> -#ifdef CONFIG_PARAVIRT_SPINLOCKS
> - pv_lock_ops.vcpu_is_preempted = kvm_vcpu_is_preempted;
> -#endif
> }
>
> if (kvm_para_has_feature(KVM_FEATURE_PV_EOI))
> @@ -...
2014 Feb 26
1
[PATCH RFC v5 5/8] pvqspinlock, x86: Enable unfair queue spinlock in a KVM guest
...> +
> +#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
> +/*
> + * Enable unfair lock if running in a real para-virtualized environment
> + */
> +static __init int kvm_unfair_locks_init_jump(void)
> +{
> + if (!kvm_para_available())
> + return 0;
I think you also need to check for !kvm_para_has_feature(KVM_FEATURE_PV_UNHALT)?
Otherwise you might enable this, but the kicker function won't be
enabled.
> +
> + static_key_slow_inc(¶virt_unfairlocks_enabled);
> + printk(KERN_INFO "KVM setup unfair spinlock\n");
> +
> + return 0;
> +}
> +early_initcall(kvm_un...
2014 Mar 13
2
[PATCH RFC v6 10/11] pvqspinlock, x86: Enable qspinlock PV support for KVM
Il 12/03/2014 19:54, Waiman Long ha scritto:
> @@ -807,8 +889,13 @@ void __init kvm_spinlock_init(void)
> if (!kvm_para_has_feature(KVM_FEATURE_PV_UNHALT))
> return;
>
> +#ifdef CONFIG_QUEUE_SPINLOCK
> + pv_lock_ops.kick_cpu = kvm_kick_cpu_type;
> + pv_lock_ops.hibernate = kvm_hibernate;
> +#else
> pv_lock_ops.lock_spinning = PV_CALLEE_SAVE(kvm_lock_spinning);
> pv_lock_ops.unlock_kick = kvm_unlo...
2014 Feb 26
1
[PATCH RFC v5 5/8] pvqspinlock, x86: Enable unfair queue spinlock in a KVM guest
...> +
> +#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
> +/*
> + * Enable unfair lock if running in a real para-virtualized environment
> + */
> +static __init int kvm_unfair_locks_init_jump(void)
> +{
> + if (!kvm_para_available())
> + return 0;
I think you also need to check for !kvm_para_has_feature(KVM_FEATURE_PV_UNHALT)?
Otherwise you might enable this, but the kicker function won't be
enabled.
> +
> + static_key_slow_inc(¶virt_unfairlocks_enabled);
> + printk(KERN_INFO "KVM setup unfair spinlock\n");
> +
> + return 0;
> +}
> +early_initcall(kvm_un...
2014 Mar 13
2
[PATCH RFC v6 10/11] pvqspinlock, x86: Enable qspinlock PV support for KVM
Il 12/03/2014 19:54, Waiman Long ha scritto:
> @@ -807,8 +889,13 @@ void __init kvm_spinlock_init(void)
> if (!kvm_para_has_feature(KVM_FEATURE_PV_UNHALT))
> return;
>
> +#ifdef CONFIG_QUEUE_SPINLOCK
> + pv_lock_ops.kick_cpu = kvm_kick_cpu_type;
> + pv_lock_ops.hibernate = kvm_hibernate;
> +#else
> pv_lock_ops.lock_spinning = PV_CALLEE_SAVE(kvm_lock_spinning);
> pv_lock_ops.unlock_kick = kvm_unlo...
2019 May 25
3
[RFC PATCH 5/6] x86/mm/tlb: Flush remote and local TLBs concurrently
...#define flush_tlb_others(mask, info) \
native_flush_tlb_others(mask, info)
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 3f0cc828cc36..c1c2b88ea3f1 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -643,6 +643,7 @@ static void __init kvm_guest_init(void)
kvm_para_has_feature(KVM_FEATURE_STEAL_TIME)) {
pv_ops.mmu.flush_tlb_others = kvm_flush_tlb_others;
pv_ops.mmu.tlb_remove_table = tlb_remove_table;
+ static_key_disable(&flush_tlb_multi_enabled.key);
}
if (kvm_para_has_feature(KVM_FEATURE_PV_EOI))
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/ker...
2019 May 25
3
[RFC PATCH 5/6] x86/mm/tlb: Flush remote and local TLBs concurrently
...#define flush_tlb_others(mask, info) \
native_flush_tlb_others(mask, info)
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 3f0cc828cc36..c1c2b88ea3f1 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -643,6 +643,7 @@ static void __init kvm_guest_init(void)
kvm_para_has_feature(KVM_FEATURE_STEAL_TIME)) {
pv_ops.mmu.flush_tlb_others = kvm_flush_tlb_others;
pv_ops.mmu.tlb_remove_table = tlb_remove_table;
+ static_key_disable(&flush_tlb_multi_enabled.key);
}
if (kvm_para_has_feature(KVM_FEATURE_PV_EOI))
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/ker...
2014 Feb 27
1
[PATCH RFC v5 5/8] pvqspinlock, x86: Enable unfair queue spinlock in a KVM guest
...zed environment
> + */
> +static __init int kvm_unfair_locks_init_jump(void)
> +{
> + if (!kvm_para_available())
> + return 0;
> +
kvm_kick_cpu_type() in patch 8 assumes that host has support for kick
hypercall (KVM_HC_KICK_CPU).
I think for that we need explicit check of this
kvm_para_has_feature(KVM_FEATURE_PV_UNHALT).
otherwise things may break for unlikely case of running a new guest on
a old host?
> + static_key_slow_inc(¶virt_unfairlocks_enabled);
> + printk(KERN_INFO "KVM setup unfair spinlock\n");
> +
> + return 0;
> +}
> +early_initcall(kvm_un...
2014 Feb 27
1
[PATCH RFC v5 5/8] pvqspinlock, x86: Enable unfair queue spinlock in a KVM guest
...zed environment
> + */
> +static __init int kvm_unfair_locks_init_jump(void)
> +{
> + if (!kvm_para_available())
> + return 0;
> +
kvm_kick_cpu_type() in patch 8 assumes that host has support for kick
hypercall (KVM_HC_KICK_CPU).
I think for that we need explicit check of this
kvm_para_has_feature(KVM_FEATURE_PV_UNHALT).
otherwise things may break for unlikely case of running a new guest on
a old host?
> + static_key_slow_inc(¶virt_unfairlocks_enabled);
> + printk(KERN_INFO "KVM setup unfair spinlock\n");
> +
> + return 0;
> +}
> +early_initcall(kvm_un...
2016 Oct 20
0
[PATCH v5 6/9] x86, kvm: support vcpu preempted check
...0, 0);
}
+static bool kvm_vcpu_is_preempted(int cpu)
+{
+ struct kvm_steal_time *src;
+
+ src = &per_cpu(steal_time, cpu);
+
+ return !!src->preempted;
+}
+
#ifdef CONFIG_SMP
static void __init kvm_smp_prepare_boot_cpu(void)
{
@@ -471,6 +480,9 @@ void __init kvm_guest_init(void)
if (kvm_para_has_feature(KVM_FEATURE_STEAL_TIME)) {
has_steal_clock = 1;
pv_time_ops.steal_clock = kvm_steal_clock;
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+ pv_lock_ops.vcpu_is_preempted = kvm_vcpu_is_preempted;
+#endif
}
if (kvm_para_has_feature(KVM_FEATURE_PV_EOI))
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/...
2017 Feb 10
3
[PATCH v2] x86/paravirt: Don't make vcpu_is_preempted() a callee-save function
...nt cpu)
return !!src->preempted;
}
-PV_CALLEE_SAVE_REGS_THUNK(__kvm_vcpu_is_preempted);
/*
* Setup pv_lock_ops to exploit KVM_FEATURE_PV_UNHALT if present.
@@ -614,10 +613,8 @@ void __init kvm_spinlock_init(void)
pv_lock_ops.wait = kvm_wait;
pv_lock_ops.kick = kvm_kick_cpu;
- if (kvm_para_has_feature(KVM_FEATURE_STEAL_TIME)) {
- pv_lock_ops.vcpu_is_preempted =
- PV_CALLEE_SAVE(__kvm_vcpu_is_preempted);
- }
+ if (kvm_para_has_feature(KVM_FEATURE_STEAL_TIME))
+ pv_lock_ops.vcpu_is_preempted = __kvm_vcpu_is_preempted;
}
#endif /* CONFIG_PARAVIRT_SPINLOCKS */
diff --git a/arch/x86/kernel/p...