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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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dfd4d47e9a
Decrementers are now properly driven by TCR/TSR, and the guest has full read/write access to these registers. The decrementer keeps ticking (and setting the TSR bit) regardless of whether the interrupts are enabled with TCR. The decrementer stops at zero, rather than going negative. Decrementers (and FITs, once implemented) are delivered as level-triggered interrupts -- dequeued when the TSR bit is cleared, not on delivery. Signed-off-by: Liu Yu <yu.liu@freescale.com> [scottwood@freescale.com: significant changes] Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, version 2, as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright IBM Corp. 2008
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*
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* Authors: Hollis Blanchard <hollisb@us.ibm.com>
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*/
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#ifndef __KVM_BOOKE_H__
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#define __KVM_BOOKE_H__
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#include <linux/types.h>
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#include <linux/kvm_host.h>
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#include <asm/kvm_ppc.h>
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#include "timing.h"
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/* interrupt priortity ordering */
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#define BOOKE_IRQPRIO_DATA_STORAGE 0
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#define BOOKE_IRQPRIO_INST_STORAGE 1
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#define BOOKE_IRQPRIO_ALIGNMENT 2
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#define BOOKE_IRQPRIO_PROGRAM 3
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#define BOOKE_IRQPRIO_FP_UNAVAIL 4
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#define BOOKE_IRQPRIO_SPE_UNAVAIL 5
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#define BOOKE_IRQPRIO_SPE_FP_DATA 6
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#define BOOKE_IRQPRIO_SPE_FP_ROUND 7
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#define BOOKE_IRQPRIO_SYSCALL 8
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#define BOOKE_IRQPRIO_AP_UNAVAIL 9
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#define BOOKE_IRQPRIO_DTLB_MISS 10
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#define BOOKE_IRQPRIO_ITLB_MISS 11
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#define BOOKE_IRQPRIO_MACHINE_CHECK 12
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#define BOOKE_IRQPRIO_DEBUG 13
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#define BOOKE_IRQPRIO_CRITICAL 14
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#define BOOKE_IRQPRIO_WATCHDOG 15
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#define BOOKE_IRQPRIO_EXTERNAL 16
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#define BOOKE_IRQPRIO_FIT 17
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#define BOOKE_IRQPRIO_DECREMENTER 18
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#define BOOKE_IRQPRIO_PERFORMANCE_MONITOR 19
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/* Internal pseudo-irqprio for level triggered externals */
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#define BOOKE_IRQPRIO_EXTERNAL_LEVEL 20
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#define BOOKE_IRQPRIO_MAX 20
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extern unsigned long kvmppc_booke_handlers;
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void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr);
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void kvmppc_mmu_msr_notify(struct kvm_vcpu *vcpu, u32 old_msr);
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void kvmppc_set_tcr(struct kvm_vcpu *vcpu, u32 new_tcr);
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void kvmppc_set_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits);
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void kvmppc_clr_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits);
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int kvmppc_booke_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
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unsigned int inst, int *advance);
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int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt);
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int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs);
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/* low-level asm code to transfer guest state */
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void kvmppc_load_guest_spe(struct kvm_vcpu *vcpu);
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void kvmppc_save_guest_spe(struct kvm_vcpu *vcpu);
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/* high-level function, manages flags, host state */
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void kvmppc_vcpu_disable_spe(struct kvm_vcpu *vcpu);
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#endif /* __KVM_BOOKE_H__ */
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