Thread (9 messages) 9 messages, 3 authors, 2021-10-11

Re: [PATCH 0/2] KVM: arm64: Minor improvements to RAZ register handling

From: Marc Zyngier <maz@kernel.org>
Date: 2021-10-11 10:00:58
Also in: kvmarm

Hi Alexandru,

On Mon, 27 Sep 2021 13:49:09 +0100,
Alexandru Elisei [off-list ref] wrote:
What sparked these two small patches is the series that fixed the PMU reset
values and their visibility from userspace, more specifically the
discussion around the patch that removed the PMSWINC_EL0 shadow register
[1].

The patches are straightforward cleanups without any changes in
functionality.

Tested on a rockpro64, by running kvm-unit-tests under qemu.

[1] https://www.spinics.net/lists/kvm-arm/msg47976.html

Alexandru Elisei (2):
  KVM: arm64: Return early from read_id_reg() if register is RAZ
  KVM: arm64: Use get_raz_reg() for userspace reads of PMSWINC_EL0

 arch/arm64/kvm/sys_regs.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)
If you are going to respin this one, now would be the time! :-)

Thanks,

	M.

-- 
Without deviation from the norm, progress is not possible.

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