On 06/03/2013 09:35 PM, Konrad Rzeszutek Wilk wrote:
On Sun, Jun 02, 2013 at 12:56:45AM +0530, Raghavendra K T wrote:
kvm hypervisor: Add directed yield in vcpu block path
From: Raghavendra K T <raghavendra.kt@xxxxxxxxxxxxxxxxxx>
We use the improved PLE handler logic in vcpu block patch for
scheduling rather than plain schedule, so that we can make
intelligent decisions
You are missing '.' there, and
Yep.
Signed-off-by: Raghavendra K T <raghavendra.kt@xxxxxxxxxxxxxxxxxx>
---
arch/ia64/include/asm/kvm_host.h | 5 +++++
arch/powerpc/include/asm/kvm_host.h | 5 +++++
arch/s390/include/asm/kvm_host.h | 5 +++++
arch/x86/include/asm/kvm_host.h | 2 +-
arch/x86/kvm/x86.c | 8 ++++++++
include/linux/kvm_host.h | 2 +-
virt/kvm/kvm_main.c | 6 ++++--
7 files changed, 29 insertions(+), 4 deletions(-)
diff --git a/arch/ia64/include/asm/kvm_host.h b/arch/ia64/include/asm/kvm_host.h
index 989dd3f..999ab15 100644
--- a/arch/ia64/include/asm/kvm_host.h
+++ b/arch/ia64/include/asm/kvm_host.h
@@ -595,6 +595,11 @@ int kvm_emulate_halt(struct kvm_vcpu *vcpu);
int kvm_pal_emul(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
void kvm_sal_emul(struct kvm_vcpu *vcpu);
+static inline void kvm_do_schedule(struct kvm_vcpu *vcpu)
+{
+ schedule();
+}
+
#define __KVM_HAVE_ARCH_VM_ALLOC 1
struct kvm *kvm_arch_alloc_vm(void);
void kvm_arch_free_vm(struct kvm *kvm);
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index af326cd..1aeecc0 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -628,4 +628,9 @@ struct kvm_vcpu_arch {
#define __KVM_HAVE_ARCH_WQP
#define __KVM_HAVE_CREATE_DEVICE
+static inline void kvm_do_schedule(struct kvm_vcpu *vcpu)
+{
+ schedule();
+}
+
#endif /* __POWERPC_KVM_HOST_H__ */
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 16bd5d1..db09a56 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -266,4 +266,9 @@ struct kvm_arch{
};
extern int sie64a(struct kvm_s390_sie_block *, u64 *);
+static inline void kvm_do_schedule(struct kvm_vcpu *vcpu)
+{
+ schedule();
+}
+
#endif
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 95702de..72ff791 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1042,5 +1042,5 @@ int kvm_pmu_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info);
int kvm_pmu_read_pmc(struct kvm_vcpu *vcpu, unsigned pmc, u64 *data);
void kvm_handle_pmu_event(struct kvm_vcpu *vcpu);
void kvm_deliver_pmi(struct kvm_vcpu *vcpu);
-
+void kvm_do_schedule(struct kvm_vcpu *vcpu);
#endif /* _ASM_X86_KVM_HOST_H */
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index b963c86..d26c4be 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7281,6 +7281,14 @@ bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu)
kvm_x86_ops->interrupt_allowed(vcpu);
}
+void kvm_do_schedule(struct kvm_vcpu *vcpu)
+{
+ /* We try to yield to a kikced vcpu else do a schedule */
s/kikced/kicked/
:(. Thanks .. will change that.
[...]
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