diff options
| author | Alexander Graf <agraf@suse.de> | 2010-03-24 21:48:36 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-05-17 12:17:20 +0300 |
| commit | 3ed9c6d2b5aa0ac365c52a2a3a370ac499f21e45 (patch) | |
| tree | 2b2b946d76b9e1344f98dad5542d63971a3bd288 /arch/powerpc | |
| parent | 5a1b419fc936af9f10766c889d83d80990ecd300 (diff) | |
| download | lwn-3ed9c6d2b5aa0ac365c52a2a3a370ac499f21e45.tar.gz lwn-3ed9c6d2b5aa0ac365c52a2a3a370ac499f21e45.zip | |
KVM: PPC: Make bools bitfields
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@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_book3s.h | 28 | ||||
| -rw-r--r-- | 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 8a6b4c540862..ee7992189c6e 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 486f1cafd5f7..5869a487e2e0 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 { |