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7def875482
Prepare for SoCs such as the ASPEED AST2600 whose firmware configures CNTFRQ to values significantly larger than the static 62.5MHz value currently derived from GTIMER_SCALE. As the OS potentially derives its timer periods from the CNTFRQ value the lack of support for running QEMUTimers at the appropriate rate leads to sticky behaviour in the guest. Substitute the GTIMER_SCALE constant with use of a helper to derive the period from gt_cntfrq_hz stored in struct ARMCPU. Initially set gt_cntfrq_hz to the frequency associated with GTIMER_SCALE so current behaviour is maintained. Signed-off-by: Andrew Jeffery <andrew@aj.id.au> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 40bd8df043f66e1ccfb3e9482999d099ac72bb2e.1576215453.git-series.andrew@aj.id.au Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
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