diff options
| author | Marc Zyngier <maz@kernel.org> | 2020-06-05 15:08:13 +0200 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-06-09 11:59:52 +0200 |
| commit | 07da1ffaa1373f99331712faa67a00b5b807dfe8 (patch) | |
| tree | c3c5e732314aabf8e6e3a33abdcd05fe99048cd6 /arch/arm64/include/asm | |
| parent | KVM: arm64: Stop sparse from moaning at __hyp_this_cpu_ptr (diff) | |
| download | linux-07da1ffaa1373f99331712faa67a00b5b807dfe8.tar.xz linux-07da1ffaa1373f99331712faa67a00b5b807dfe8.zip | |
KVM: arm64: Remove host_cpu_context member from vcpu structure
For very long, we have kept this pointer back to the per-cpu
host state, despite having working per-cpu accessors at EL2
for some time now.
Recent investigations have shown that this pointer is easy
to abuse in preemptible context, which is a sure sign that
it would better be gone. Not to mention that a per-cpu
pointer is faster to access at all times.
Reported-by: Andrew Scull <ascull@google.com>
Acked-by: Mark Rutland <mark.rutland@arm.com
Reviewed-by: Andrew Scull <ascull@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm')
| -rw-r--r-- | arch/arm64/include/asm/kvm_host.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 59029e90b557..ada1faa92211 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -284,9 +284,6 @@ struct kvm_vcpu_arch { struct kvm_guest_debug_arch vcpu_debug_state; struct kvm_guest_debug_arch external_debug_state; - /* Pointer to host CPU context */ - struct kvm_cpu_context *host_cpu_context; - struct thread_info *host_thread_info; /* hyp VA */ struct user_fpsimd_state *host_fpsimd_state; /* hyp VA */ |