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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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34 lines
629 B
C
34 lines
629 B
C
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#include <asm/io.h>
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#include <asm/reboot.h>
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#include <asm/cacheflush.h>
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#include <asm/qemu.h>
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static void qemu_machine_restart(char *command)
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{
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volatile unsigned int *reg = (unsigned int *)QEMU_RESTART_REG;
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set_c0_status(ST0_BEV | ST0_ERL);
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change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
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flush_cache_all();
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write_c0_wired(0);
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*reg = 42;
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while (1)
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cpu_wait();
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}
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static void qemu_machine_halt(void)
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{
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volatile unsigned int *reg = (unsigned int *)QEMU_HALT_REG;
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*reg = 42;
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while (1)
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cpu_wait();
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}
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void qemu_reboot_setup(void)
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{
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_machine_restart = qemu_machine_restart;
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_machine_halt = qemu_machine_halt;
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}
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