linux_dsm_epyc7002/arch/arm64/include
Suzuki K Poulose 7665f3a849 kvm: arm64: Configure VTCR_EL2 per VM
Add support for setting the VTCR_EL2 per VM, rather than hard
coding a value at boot time per CPU. This would allow us to tune
the stage2 page table parameters per VM in the later changes.

We compute the VTCR fields based on the system wide sanitised
feature registers, except for the hardware management of Access
Flags (VTCR_EL2.HA). It is fine to run a system with a mix of
CPUs that may or may not update the page table Access Flags.
Since the bit is RES0 on CPUs that don't support it, the bit
should be ignored on them.

Suggested-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <cdall@kernel.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-10-01 13:50:29 +01:00
..
asm kvm: arm64: Configure VTCR_EL2 per VM 2018-10-01 13:50:29 +01:00
uapi/asm arm/arm64: KVM: Add KVM_GET/SET_VCPU_EVENTS 2018-07-21 16:02:30 +01:00