Mark Brown cccb78ce89 arm64/sve: Rework SVE access trap to convert state in registers ... When we enable SVE usage in userspace after taking a SVE access trap we need to ensure that the portions of the register state that are not shared with the FPSIMD registers are zeroed. Currently we do this by forcing the FPSIMD registers to be saved to the task struct and converting them there. This is wasteful in the common case where the task state is loaded into the registers and we will immediately return to userspace since we can initialise the SVE state directly in registers instead of accessing multiple copies of the register state in memory. Instead in that common case do the conversion in the registers and update the task metadata so that we can return to userspace without spilling the register state to memory unless there is some other reason to do so. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20210312190313.24598-1-broonie@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>		2021-04-08 17:43:43 +01:00
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asm	arm64/sve: Rework SVE access trap to convert state in registers	2021-04-08 17:43:43 +01:00
uapi/asm	KVM: arm64: Move 'struct kvm_arch_memory_slot' out of uapi/	2020-11-27 18:59:05 +00:00