[PATCH v2 2/6] KVM: x86: hyperv: use defines when parsing hypercall parameters
From: Vitaly Kuznetsov
Date: Wed Apr 11 2018 - 13:21:42 EST
Avoid open-coding offsets for hypercall input parameters, we already
have defines for them.
Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
---
arch/x86/kvm/hyperv.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index 98618e397342..3cb3bb68db7e 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -1339,9 +1339,9 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
#endif
code = param & 0xffff;
- fast = (param >> 16) & 0x1;
- rep_cnt = (param >> 32) & 0xfff;
- rep_idx = (param >> 48) & 0xfff;
+ fast = !!(param & HV_HYPERCALL_FAST_BIT);
+ rep_cnt = (param >> HV_HYPERCALL_REP_COMP_OFFSET) & 0xfff;
+ rep_idx = (param >> HV_HYPERCALL_REP_START_OFFSET) & 0xfff;
trace_kvm_hv_hypercall(code, fast, rep_cnt, rep_idx, ingpa, outgpa);
--
2.14.3