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| author | Yanan Wang <wangyanan55@huawei.com> | 2021-06-17 13:58:23 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-06-18 14:35:35 +0300 |
| commit | 378e6a9c78a02b4b609846aa0afccf34d3038977 (patch) | |
| tree | ab613e32ee12b86f79f822ee286632eee66d4772 /arch/arm64/kvm | |
| parent | a4d5ca5c7cd8fe85056b8cb838fbcb7e5a05f356 (diff) | |
| download | linux-378e6a9c78a02b4b609846aa0afccf34d3038977.tar.xz | |
KVM: arm64: Tweak parameters of guest cache maintenance functions
Adjust the parameter "kvm_pfn_t pfn" of __clean_dcache_guest_page
and __invalidate_icache_guest_page to "void *va", which paves the
way for converting these two guest CMO functions into callbacks in
structure kvm_pgtable_mm_ops. No functional change.
Reviewed-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Yanan Wang <wangyanan55@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210617105824.31752-4-wangyanan55@huawei.com
Diffstat (limited to 'arch/arm64/kvm')
| -rw-r--r-- | arch/arm64/kvm/mmu.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c index c10207fed2f3..0a5a5b098a4a 100644 --- a/arch/arm64/kvm/mmu.c +++ b/arch/arm64/kvm/mmu.c @@ -126,6 +126,16 @@ static void *kvm_host_va(phys_addr_t phys) return __va(phys); } +static void clean_dcache_guest_page(void *va, size_t size) +{ + __clean_dcache_guest_page(va, size); +} + +static void invalidate_icache_guest_page(void *va, size_t size) +{ + __invalidate_icache_guest_page(va, size); +} + /* * Unmapping vs dcache management: * @@ -693,16 +703,6 @@ 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 clean_dcache_guest_page(kvm_pfn_t pfn, unsigned long size) -{ - __clean_dcache_guest_page(pfn, size); -} - -static void invalidate_icache_guest_page(kvm_pfn_t pfn, unsigned long size) -{ - __invalidate_icache_guest_page(pfn, size); -} - static void kvm_send_hwpoison_signal(unsigned long address, short lsb) { send_sig_mceerr(BUS_MCEERR_AR, (void __user *)address, lsb, current); @@ -972,11 +972,13 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa, prot |= KVM_PGTABLE_PROT_W; if (fault_status != FSC_PERM && !device) - clean_dcache_guest_page(pfn, vma_pagesize); + clean_dcache_guest_page(page_address(pfn_to_page(pfn)), + vma_pagesize); if (exec_fault) { prot |= KVM_PGTABLE_PROT_X; - invalidate_icache_guest_page(pfn, vma_pagesize); + invalidate_icache_guest_page(page_address(pfn_to_page(pfn)), + vma_pagesize); } if (device) @@ -1178,7 +1180,7 @@ bool kvm_set_spte_gfn(struct kvm *kvm, struct kvm_gfn_range *range) * We've moved a page around, probably through CoW, so let's treat it * just like a translation fault and clean the cache to the PoC. */ - clean_dcache_guest_page(pfn, PAGE_SIZE); + clean_dcache_guest_page(page_address(pfn_to_page(pfn)), PAGE_SIZE); /* * The MMU notifiers will have unmapped a huge PMD before calling |