Displaying 4 results from an estimated 4 matches for "__kvm_vcpu_is_".
2017 Feb 16
1
[PATCH v4 2/2] x86/kvm: Provide optimized version of vcpu_is_preempted() for x86-64
...IRT_SPINLOCKS
+ OFFSET(KVM_STEAL_TIME_preempted, kvm_steal_time, preempted);
+ BLANK();
+#endif
+#endif
+
#define ENTRY(entry) OFFSET(pt_regs_ ## entry, pt_regs, entry)
ENTRY(bx);
ENTRY(cx);
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -600,22 +600,21 @@ PV_CALLEE_SAVE_REGS_THUNK(__kvm_vcpu_is_
#else
+#include <asm/asm-offsets.h>
+
extern bool __raw_callee_save___kvm_vcpu_is_preempted(long);
/*
* Hand-optimize version for x86-64 to avoid 8 64-bit register saving and
- * restoring to/from the stack. It is assumed that the preempted value
- * is at an offset of 16 from the...
2017 Feb 16
1
[PATCH v4 2/2] x86/kvm: Provide optimized version of vcpu_is_preempted() for x86-64
...IRT_SPINLOCKS
+ OFFSET(KVM_STEAL_TIME_preempted, kvm_steal_time, preempted);
+ BLANK();
+#endif
+#endif
+
#define ENTRY(entry) OFFSET(pt_regs_ ## entry, pt_regs, entry)
ENTRY(bx);
ENTRY(cx);
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -600,22 +600,21 @@ PV_CALLEE_SAVE_REGS_THUNK(__kvm_vcpu_is_
#else
+#include <asm/asm-offsets.h>
+
extern bool __raw_callee_save___kvm_vcpu_is_preempted(long);
/*
* Hand-optimize version for x86-64 to avoid 8 64-bit register saving and
- * restoring to/from the stack. It is assumed that the preempted value
- * is at an offset of 16 from the...
2017 Feb 15
4
[PATCH v4 0/2] x86/kvm: Reduce vcpu_is_preempted() overhead
v3->v4:
- Fix x86-32 build error.
v2->v3:
- Provide an optimized __raw_callee_save___kvm_vcpu_is_preempted()
in assembly as suggested by PeterZ.
- Add a new patch to change vcpu_is_preempted() argument type to long
to ease the writing of the assembly code.
v1->v2:
- Rerun the fio test on a different system on both bare-metal and a
KVM guest. Both sockets were utilized in th...
2017 Feb 15
4
[PATCH v4 0/2] x86/kvm: Reduce vcpu_is_preempted() overhead
v3->v4:
- Fix x86-32 build error.
v2->v3:
- Provide an optimized __raw_callee_save___kvm_vcpu_is_preempted()
in assembly as suggested by PeterZ.
- Add a new patch to change vcpu_is_preempted() argument type to long
to ease the writing of the assembly code.
v1->v2:
- Rerun the fio test on a different system on both bare-metal and a
KVM guest. Both sockets were utilized in th...