lkml.org 
[lkml]   [2019]   [Dec]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 2/5] KVM: x86: Move bit() helper to cpuid.h
Date
Move bit() to cpuid.h in preparation for incorporating the reverse_cpuid
array in bit() build-time assertions. Opportunistically use the BIT()
macro instead of open-coding the shift.

No functional change intended.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
arch/x86/kvm/cpuid.h | 5 +++++
arch/x86/kvm/x86.h | 5 -----
2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index d78a61408243..a631329ebec7 100644
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -55,6 +55,11 @@ static const struct cpuid_reg reverse_cpuid[] = {
[CPUID_7_EDX] = { 7, 0, CPUID_EDX},
};

+static inline u32 bit(int bitno)
+{
+ return BIT(bitno & 31);
+}
+
static __always_inline struct cpuid_reg x86_feature_cpuid(unsigned x86_feature)
{
unsigned x86_leaf = x86_feature / 32;
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
index cab5e71f0f0f..5f6b8f9a385c 100644
--- a/arch/x86/kvm/x86.h
+++ b/arch/x86/kvm/x86.h
@@ -144,11 +144,6 @@ static inline bool is_pae_paging(struct kvm_vcpu *vcpu)
return !is_long_mode(vcpu) && is_pae(vcpu) && is_paging(vcpu);
}

-static inline u32 bit(int bitno)
-{
- return 1 << (bitno & 31);
-}
-
static inline u8 vcpu_virt_addr_bits(struct kvm_vcpu *vcpu)
{
return kvm_read_cr4_bits(vcpu, X86_CR4_LA57) ? 57 : 48;
--
2.24.1
\
 
 \ /
  Last update: 2019-12-17 22:33    [W:0.040 / U:14.184 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site