To initialise the timer access from EL2 when HCR_EL2.E2H is set, we must make use the CNTHCTL_EL2 formap used is appropriate. This amounts to shifting the timer/counter enable bits by 10 to the left. Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx> --- arch/arm64/include/asm/el2_setup.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/include/asm/el2_setup.h b/arch/arm64/include/asm/el2_setup.h index 668569adf4d3..fa1045f709bb 100644 --- a/arch/arm64/include/asm/el2_setup.h +++ b/arch/arm64/include/asm/el2_setup.h @@ -34,6 +34,11 @@ */ .macro __init_el2_timers mov x0, #3 // Enable EL1 physical timers + mrs x1, hcr_el2 + and x1, x1, #HCR_E2H + cbz x1, .LnVHE_\@ + lsl x0, x0, #10 +.LnVHE_\@: msr cnthctl_el2, x0 msr cntvoff_el2, xzr // Clear virtual offset .endm -- 2.34.1 _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
