Re: [PATCH v6 15/64] KVM: arm64: nv: Handle HCR_EL2.E2H specially
From: "Russell King (Oracle)" <linux@armlinux.org.uk>
Date: 2022-02-01 16:53:16
Also in:
kvm, kvmarm
On Fri, Jan 28, 2022 at 12:18:23PM +0000, Marc Zyngier wrote:
HCR_EL2.E2H is nasty, as a flip of this bit completely changes the way we deal with a lot of the state. So when the guest flips this bit (sysregs are live), do the put/load dance so that we have a consistent state. Yes, this is slow. Don't do it.
I'd hope this is very unlikely!
Suggested-by: Alexandru Elisei <redacted> Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Russell King (Oracle) <redacted> -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last! _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel