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0c389d90eb
On non-VHE systems we need to save the ELR_EL2 and SPSR_EL2 so that we can return to the host in EL1 in the same state and location where we issued a hypercall to EL2, but on VHE ELR_EL2 and SPSR_EL2 are not useful because we never enter a guest as a result of an exception entry that would be directly handled by KVM. The kernel entry code already saves ELR_EL1/SPSR_EL1 on exception entry, which is enough. Therefore, factor out these registers into separate save/restore functions, making it easy to exclude them from the VHE world-switch path later on. Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> |
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| boot | ||
| configs | ||
| crypto | ||
| include | ||
| kernel | ||
| kvm | ||
| lib | ||
| mm | ||
| net | ||
| xen | ||
| Kconfig | ||
| Kconfig.debug | ||
| Kconfig.platforms | ||
| Makefile | ||