Bool defaults to at least byte width. We usually only want to waste a single
bit on this. So let's move all the bool values to bitfields, potentially
saving memory.
Signed-off-by: Alexander Graf <agraf@xxxxxxx>
---
arch/powerpc/include/asm/kvm_book3s.h | 28 ++++++++++++++--------------
arch/powerpc/include/asm/kvm_host.h | 6 +++---
2 files changed, 17 insertions(+), 17 deletions(-)
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 8a6b4c5..ee79921 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -29,40 +29,40 @@ struct kvmppc_slb {
u64 vsid;
u64 orige;
u64 origv;
- bool valid;
- bool Ks;
- bool Kp;
- bool nx;
- bool large; /* PTEs are 16MB */
- bool tb; /* 1TB segment */
- bool class;
+ bool valid : 1;
+ bool Ks : 1;
+ bool Kp : 1;
+ bool nx : 1;
+ bool large : 1; /* PTEs are 16MB */
+ bool tb : 1; /* 1TB segment */
+ bool class : 1;
};
struct kvmppc_sr {
u32 raw;
u32 vsid;
- bool Ks;
- bool Kp;
- bool nx;
- bool valid;
+ bool Ks : 1;
+ bool Kp : 1;
+ bool nx : 1;
+ bool valid : 1;
};
struct kvmppc_bat {
u64 raw;
u32 bepi;
u32 bepi_mask;
- bool vs;
- bool vp;
u32 brpn;
u8 wimg;
u8 pp;
+ bool vs : 1;
+ bool vp : 1;
};
struct kvmppc_sid_map {
u64 guest_vsid;
u64 guest_esid;
u64 host_vsid;
- bool valid;
+ bool valid : 1;
};
#define SID_MAP_BITS 9
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 486f1ca..5869a48 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -127,9 +127,9 @@ struct kvmppc_pte {
u64 eaddr;
u64 vpage;
u64 raddr;
- bool may_read;
- bool may_write;
- bool may_execute;
+ bool may_read : 1;
+ bool may_write : 1;
+ bool may_execute : 1;
};
struct kvmppc_mmu {
--
1.6.0.2
--
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