A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 10:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

KVM: arm/arm64: Split dcache/icache flushing

Browse source 
As we're about to introduce opportunistic invalidation of the icache,
let's split dcache and icache flushing.

Acked-by: Christoffer Dall <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Signed-off-by: Christoffer Dall <[email protected]>
This commit is contained in:
Marc Zyngier 2017-10-23 17:11:15 +01:00 • committed by Christoffer Dall
commit a15f693935
3 changed files with 67 additions and 26 deletions
Download patch file Download diff file Expand all files Collapse all files

20
virt/kvm/arm/mmu.c
View file

@ -1257,10 +1257,16 @@ void kvm_arch_mmu_enable_log_dirty_pt_masked(struct kvm *kvm,
kvm_mmu_write_protect_pt_masked(kvm, slot, gfn_offset, mask);
}
static void coherent_cache_guest_page(struct kvm_vcpu *vcpu, kvm_pfn_t pfn,
unsigned long size)
static void clean_dcache_guest_page(struct kvm_vcpu *vcpu, kvm_pfn_t pfn,
unsigned long size)
{
__coherent_cache_guest_page(vcpu, pfn, size);
__clean_dcache_guest_page(vcpu, pfn, size);
}
static void invalidate_icache_guest_page(struct kvm_vcpu *vcpu, kvm_pfn_t pfn,
unsigned long size)
{
__invalidate_icache_guest_page(vcpu, pfn, size);
}
static void kvm_send_hwpoison_signal(unsigned long address,
@ -1391,7 +1397,9 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
new_pmd = kvm_s2pmd_mkwrite(new_pmd);
kvm_set_pfn_dirty(pfn);
}
coherent_cache_guest_page(vcpu, pfn, PMD_SIZE);
clean_dcache_guest_page(vcpu, pfn, PMD_SIZE);
invalidate_icache_guest_page(vcpu, pfn, PMD_SIZE);
ret = stage2_set_pmd_huge(kvm, memcache, fault_ipa, &new_pmd);
} else {
pte_t new_pte = pfn_pte(pfn, mem_type);
@ -1401,7 +1409,9 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
kvm_set_pfn_dirty(pfn);
mark_page_dirty(kvm, gfn);
}
coherent_cache_guest_page(vcpu, pfn, PAGE_SIZE);
clean_dcache_guest_page(vcpu, pfn, PAGE_SIZE);
invalidate_icache_guest_page(vcpu, pfn, PAGE_SIZE);
ret = stage2_set_pte(kvm, memcache, fault_ipa, &new_pte, flags);
}