| Message ID | 1371521861-372-2-git-send-email-christoffer.dall@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, Jun 18, 2013 at 03:17:41AM +0100, Christoffer Dall wrote: > When KVM 32-bit adds THP support the build of KVM/arm64 will break > because we rename some definition to be more sane and change the > interface to coherent_icache_guest_page. > > Huge pages are not supported on arm64 and the pgtable predicates will > always return false, so this shouldn't change any functionality on the > 64-bit side. FYI, huge pages will be supported on arm64 starting with 3.11-rc1. Given that it's -rc6 now, I would suggest you aim the kvm patches at 3.12.
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 644d739..f5d73dc 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -38,8 +38,8 @@ /* We don't currently support large pages. */ #define KVM_HPAGE_GFN_SHIFT(x) 0 -#define KVM_NR_PAGE_SIZES 1 -#define KVM_PAGES_PER_HPAGE(x) (1UL<<31) +#define KVM_HPAGE_SIZE 1 +#define KVM_PAGES_PER_HPAGE (1UL<<31) struct kvm_vcpu; int kvm_target_cpu(void); diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h index efe609c..c86749e 100644 --- a/arch/arm64/include/asm/kvm_mmu.h +++ b/arch/arm64/include/asm/kvm_mmu.h @@ -118,11 +118,11 @@ static inline void kvm_set_s2pte_writable(pte_t *pte) struct kvm; -static inline void coherent_icache_guest_page(struct kvm *kvm, gfn_t gfn) +static inline void coherent_icache_guest_page(struct kvm *kvm, hva_t hva, + size_t size) { if (!icache_is_aliasing()) { /* PIPT */ - unsigned long hva = gfn_to_hva(kvm, gfn); - flush_icache_range(hva, hva + PAGE_SIZE); + flush_icache_range(hva, hva + size); } else if (!icache_is_aivivt()) { /* non ASID-tagged VIVT */ /* any kind of VIPT cache */ __flush_icache_all();
When KVM 32-bit adds THP support the build of KVM/arm64 will break because we rename some definition to be more sane and change the interface to coherent_icache_guest_page. Huge pages are not supported on arm64 and the pgtable predicates will always return false, so this shouldn't change any functionality on the 64-bit side. Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> --- arch/arm64/include/asm/kvm_host.h | 4 ++-- arch/arm64/include/asm/kvm_mmu.h | 6 +++--- 2 files changed, 5 insertions(+), 5 deletions(-)