70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
/*
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* Paravirtualized PV_OPs support
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*
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* Copyright (C) 2016 MCST
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*/
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#ifndef _E2K_PARAVIRT_SYSTEM_H_
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#define _E2K_PARAVIRT_SYSTEM_H_
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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#include <asm/paravirt/pv_ops.h>
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#include <asm/kvm/guest/system.h>
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#define PV_SWITCH_IRQ_TO_UPSR(disable_sge) \
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({ \
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if (!paravirt_enabled()) { \
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NATIVE_SWITCH_IRQ_TO_UPSR(disable_sge); \
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} else { \
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KVM_SWITCH_IRQ_TO_UPSR(disable_sge); \
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} \
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})
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#define BOOT_PV_SWITCH_IRQ_TO_UPSR(disable_sge) \
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({ \
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if (!boot_paravirt_enabled()) { \
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BOOT_NATIVE_WRITE_PSR_REG_VALUE(AW(E2K_KERNEL_PSR_ENABLED)); \
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} else { \
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BOOT_KVM_WRITE_PSR_REG_VALUE(AW(E2K_KERNEL_PSR_ENABLED)); \
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} \
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})
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#define PV_INIT_KERNEL_UPSR_REG(irq_en, nmirq_dis) \
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PREFIX_INIT_KERNEL_UPSR_REG(PV, irq_en, nmirq_dis)
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#define BOOT_PV_INIT_KERNEL_UPSR_REG(irq_en, nmirq_dis) \
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BOOT_PREFIX_INIT_KERNEL_UPSR_REG(PV, irq_en, nmirq_dis)
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#define PV_SET_KERNEL_UPSR_WITH_DISABLED_NMI(disable_sge) \
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PREFIX_SET_KERNEL_UPSR_WITH_DISABLED_NMI(PV, disable_sge)
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#define BOOT_PV_SET_KERNEL_UPSR() \
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BOOT_PREFIX_SET_KERNEL_UPSR(PV)
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static inline void *
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pv_nested_kernel_return_address(int n)
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{
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return pv_cpu_ops.nested_kernel_return_address(n);
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}
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#ifdef CONFIG_PARAVIRT_GUEST
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/* it is paravirtualized host and guest kernel */
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#define INIT_KERNEL_UPSR_REG(irq_en, nmirq_dis) \
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PV_INIT_KERNEL_UPSR_REG(irq_en, nmirq_dis)
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#define BOOT_INIT_KERNEL_UPSR_REG(irq_en, nmirq_dis) \
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BOOT_PV_INIT_KERNEL_UPSR_REG(irq_en, nmirq_dis)
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#define SET_KERNEL_UPSR_WITH_DISABLED_NMI(disable_sge) \
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PV_SET_KERNEL_UPSR_WITH_DISABLED_NMI(disable_sge)
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#define BOOT_SET_KERNEL_UPSR() BOOT_PV_SET_KERNEL_UPSR()
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static inline void *
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nested_kernel_return_address(int n)
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{
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return pv_nested_kernel_return_address(n);
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}
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#endif /* CONFIG_PARAVIRT_GUEST */
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#endif /* ! __ASSEMBLY__ */
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#endif /* _E2K_PARAVIRT_SYSTEM_H_ */
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