hw/arm/boot: If booting a kernel in EL2, set SCR_EL3.HCE
commitbda816f08abde5b1681b4e3ba55e42871dad96fc
authorPeter Maydell <peter.maydell@linaro.org>
Tue, 13 Mar 2018 15:34:52 +0000 (13 15:34 +0000)
committerPeter Maydell <peter.maydell@linaro.org>
Mon, 19 Mar 2018 18:23:24 +0000 (19 18:23 +0000)
treeb4d67e0eedca0ca905cedfb3c01e0c5e88d3c114
parent43118f4351c1c430aa5c32aed80dcfe0b525a1f0
hw/arm/boot: If booting a kernel in EL2, set SCR_EL3.HCE

If we're directly booting a Linux kernel and the CPU supports both
EL3 and EL2, we start the kernel in EL2, as it expects. We must also
set the SCR_EL3.HCE bit in this situation, so that the HVC
instruction is enabled rather than UNDEFing. Otherwise at least some
kernels will panic when trying to initialize KVM in the guest.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180313153458.26822-4-peter.maydell@linaro.org
hw/arm/boot.c