Alison Felizzi 71d636f8b3 arm_hyp: Save and restore vtimer state on switches ... Added support for reading and writing additional virtual timer registers for vcpu hw read and write accesses. These include the compare value register (CNTV_CVAL) and offset register (CNTV_OFF), each represented as two 32 bit (high and low) registers on aarch32 and as single 64 bit registers on aarch64. Added support for explicitly saving and restoring the virtual timer registers when the vcpu is enabled and disabled. This ensures when the vcpu is switched in and out, the virtual timer registers are restored to a state that is consistent to when it was last run. By default the CNTVOFF register will be updated by the kernel to accumulate the time the VCPU is not running. From the guest this will result in the VCNT register not increasing when the VCPU is suspended. This behavior can be turned off by disabling the KernelArmVtimerUpdateVOffset config option.		2020-02-20 11:40:59 +11:00
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interfaces	trivial: arm: Improve object method docs	2020-01-06 16:14:02 +11:00
sel4/sel4_arch	arm_hyp: Save and restore vtimer state on switches	2020-02-20 11:40:59 +11:00