[PATCH v4 07/10] kvm: arm64: Duplicate arm64_ssbd_callback_required for nVHE hyp
will at kernel.org
Tue Sep 29 13:37:28 EDT 2020
On Tue, Sep 22, 2020 at 09:49:07PM +0100, David Brazdil wrote:
> Hyp keeps track of which cores require SSBD callback by accessing a
> kernel-proper global variable. Create an nVHE symbol of the same name
> and copy the value from kernel proper to nVHE as KVM is being enabled
> on a core.
> Done in preparation for separating percpu memory owned by kernel
> proper and nVHE.
> Signed-off-by: David Brazdil <dbrazdil at google.com>
> arch/arm64/include/asm/kvm_mmu.h | 14 +++++++++++++-
> arch/arm64/kernel/image-vars.h | 1 -
> arch/arm64/kvm/arm.c | 3 +++
> arch/arm64/kvm/hyp/nvhe/switch.c | 3 +++
> 4 files changed, 19 insertions(+), 2 deletions(-)
Acked-by: Will Deacon <will at kernel.org>
Marc: please take a look at for-next/ghostbusters on the arm64 tree, as
that has the patches which remove this stuff entirely. I had to rebase
the branch today because I screwed up some of the SoBs but the HEAD is
now stable at 780c083a8f84.
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