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1a15311a12
The overhead for the OpenBMC firmware images using the a custom U-Boot is around 2 seconds, which is fine, but with a U-Boot from mainline, it takes an extra 50 seconds or so to reach Linux. A quick survey on the number of reads performed on the flash memory region gives the following figures : OpenBMC U-Boot 922478 (~ 3.5 MBytes) Mainline U-Boot 20569977 (~ 80 MBytes) QEMU must be trashing the TCG TBs and reloading text very often. Some addresses are read more than 250.000 times. Until we find a solution to improve boot time, execution from MMIO is not activated by default. Setting this option also breaks migration compatibility. Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200114103433.30534-5-clg@kaod.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
/*
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* Aspeed Machines
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*
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* Copyright 2018 IBM Corp.
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*
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* This code is licensed under the GPL version 2 or later. See
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* the COPYING file in the top-level directory.
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*/
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#ifndef ARM_ASPEED_H
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#define ARM_ASPEED_H
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#include "hw/boards.h"
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typedef struct AspeedBoardState AspeedBoardState;
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#define TYPE_ASPEED_MACHINE MACHINE_TYPE_NAME("aspeed")
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#define ASPEED_MACHINE(obj) \
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OBJECT_CHECK(AspeedMachine, (obj), TYPE_ASPEED_MACHINE)
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typedef struct AspeedMachine {
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MachineState parent_obj;
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bool mmio_exec;
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} AspeedMachine;
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#define ASPEED_MACHINE_CLASS(klass) \
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OBJECT_CLASS_CHECK(AspeedMachineClass, (klass), TYPE_ASPEED_MACHINE)
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#define ASPEED_MACHINE_GET_CLASS(obj) \
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OBJECT_GET_CLASS(AspeedMachineClass, (obj), TYPE_ASPEED_MACHINE)
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typedef struct AspeedMachineClass {
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MachineClass parent_obj;
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const char *name;
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const char *desc;
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const char *soc_name;
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uint32_t hw_strap1;
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uint32_t hw_strap2;
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const char *fmc_model;
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const char *spi_model;
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uint32_t num_cs;
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void (*i2c_init)(AspeedBoardState *bmc);
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} AspeedMachineClass;
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#endif
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