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    SubjectRe: [PATCH v4 1/2] KVM: arm64: Move CMOs from user_mem_abort to the fault handlers
    Hi Yanan,

    On Friday 09 Apr 2021 at 11:36:51 (+0800), Yanan Wang wrote:
    > diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
    > +static void stage2_invalidate_icache(void *addr, u64 size)
    > +{
    > + if (icache_is_aliasing()) {
    > + /* Flush any kind of VIPT icache */
    > + __flush_icache_all();
    > + } else if (is_kernel_in_hyp_mode() || !icache_is_vpipt()) {
    > + /* PIPT or VPIPT at EL2 */
    > + invalidate_icache_range((unsigned long)addr,
    > + (unsigned long)addr + size);
    > + }
    > +}
    > +

    I would recommend to try and rebase this patch on kvmarm/next because
    we've made a few changes in pgtable.c recently. It is now linked into
    the EL2 NVHE code which means there are constraints on what can be used
    from there -- you'll need a bit of extra work to make some of these
    functions available to EL2.

    Thanks,
    Quentin

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