diff options
| author | Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> | 2013-06-07 10:51:24 +0200 |
|---|---|---|
| committer | Gleb Natapov <gleb@redhat.com> | 2013-06-27 13:18:15 +0200 |
| commit | f2fd125d32822ee32779551a70d256a7c27dbe40 (patch) | |
| tree | 76c09c50170f32db0587b3e5883f8e1b1b4f245e /arch/x86/kvm/mmutrace.h | |
| parent | KVM: MMU: retain more available bits on mmio spte (diff) | |
| download | linux-f2fd125d32822ee32779551a70d256a7c27dbe40.tar.xz linux-f2fd125d32822ee32779551a70d256a7c27dbe40.zip | |
KVM: MMU: store generation-number into mmio spte
Store the generation-number into bit3 ~ bit11 and bit52 ~ bit61, totally
19 bits can be used, it should be enough for nearly all most common cases
In this patch, the generation-number is always 0, it will be changed in
the later patch
[Gleb: masking generation bits from spte in get_mmio_spte_gfn() and
get_mmio_spte_access()]
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmutrace.h')
| -rw-r--r-- | arch/x86/kvm/mmutrace.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/x86/kvm/mmutrace.h b/arch/x86/kvm/mmutrace.h index eb444dd374af..ad24757041ad 100644 --- a/arch/x86/kvm/mmutrace.h +++ b/arch/x86/kvm/mmutrace.h @@ -199,23 +199,25 @@ DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_prepare_zap_page, TRACE_EVENT( mark_mmio_spte, - TP_PROTO(u64 *sptep, gfn_t gfn, unsigned access), - TP_ARGS(sptep, gfn, access), + TP_PROTO(u64 *sptep, gfn_t gfn, unsigned access, unsigned int gen), + TP_ARGS(sptep, gfn, access, gen), TP_STRUCT__entry( __field(void *, sptep) __field(gfn_t, gfn) __field(unsigned, access) + __field(unsigned int, gen) ), TP_fast_assign( __entry->sptep = sptep; __entry->gfn = gfn; __entry->access = access; + __entry->gen = gen; ), - TP_printk("sptep:%p gfn %llx access %x", __entry->sptep, __entry->gfn, - __entry->access) + TP_printk("sptep:%p gfn %llx access %x gen %x", __entry->sptep, + __entry->gfn, __entry->access, __entry->gen) ); TRACE_EVENT( |