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| author | Alexander Graf <agraf@suse.de> | 2012-08-03 13:56:33 +0200 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2012-08-16 14:14:53 +0200 |
| commit | 249ba1ee0f8fcb4e40caa5fbea11dafde201cc46 (patch) | |
| tree | cbe2fcf2c4e0c966afb3a7cacc785b608304a40c /arch/powerpc/include/asm/kvm_ppc.h | |
| parent | 04f995a544d1289ffb8108849cd71b1325c5af6a (diff) | |
| download | talos-op-linux-249ba1ee0f8fcb4e40caa5fbea11dafde201cc46.tar.gz talos-op-linux-249ba1ee0f8fcb4e40caa5fbea11dafde201cc46.zip | |
KVM: PPC: Add cache flush on page map
When we map a page that wasn't icache cleared before, do so when first
mapping it in KVM using the same information bits as the Linux mapping
logic. That way we are 100% sure that any page we map does not have stale
entries in the icache.
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/include/asm/kvm_ppc.h')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_ppc.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h index 0124937a23b9..e006f0bdea95 100644 --- a/arch/powerpc/include/asm/kvm_ppc.h +++ b/arch/powerpc/include/asm/kvm_ppc.h @@ -219,4 +219,16 @@ void kvmppc_claim_lpid(long lpid); void kvmppc_free_lpid(long lpid); void kvmppc_init_lpid(unsigned long nr_lpids); +static inline void kvmppc_mmu_flush_icache(pfn_t pfn) +{ + /* Clear i-cache for new pages */ + struct page *page; + page = pfn_to_page(pfn); + if (!test_bit(PG_arch_1, &page->flags)) { + flush_dcache_icache_page(page); + set_bit(PG_arch_1, &page->flags); + } +} + + #endif /* __POWERPC_KVM_PPC_H__ */ |
