On 12.01.2018 13:07, Christoffer Dall wrote:
There is no need to enable/disable traps to FP registers on every switch
to/from the VM, because the host kernel does not use this resource
without calling vcpu_put. We can therefore move things around enough
that we still always write FPEXC32_EL2 before programming CPTR_EL2 but
only program these during vcpu load/put.
Signed-off-by: Christoffer Dall <christoffer.d...@linaro.org>
---
arch/arm64/include/asm/kvm_hyp.h | 6 +++++
arch/arm64/kvm/hyp/switch.c | 51 +++++++++++++++++++++++++++++-----------
arch/arm64/kvm/hyp/sysreg-sr.c | 12 ++++++++--
3 files changed, 53 insertions(+), 16 deletions(-)
[...]
-static void __hyp_text __deactivate_traps_nvhe(void)
-{
+static void __hyp_text __deactivate_traps_nvhe(void) {
Nit: unrelated change.
Thanks,
Tomasz
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