87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
|
/*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License, version 2, as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program; if not, write to the Free Software
|
||
|
|
* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
||
|
|
*
|
||
|
|
* Copyright IBM Corp. 2007
|
||
|
|
*
|
||
|
|
* Authors: Hollis Blanchard <hollisb@us.ibm.com>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __KVM_POWERPC_TLB_H__
|
||
|
|
#define __KVM_POWERPC_TLB_H__
|
||
|
|
|
||
|
|
#include <linux/kvm_host.h>
|
||
|
|
#include <asm/mmu-44x.h>
|
||
|
|
|
||
|
|
extern int kvmppc_44x_tlb_index(struct kvm_vcpu *vcpu, gva_t eaddr,
|
||
|
|
unsigned int pid, unsigned int as);
|
||
|
|
|
||
|
|
extern int kvmppc_44x_emul_tlbsx(struct kvm_vcpu *vcpu, u8 rt, u8 ra, u8 rb,
|
||
|
|
u8 rc);
|
||
|
|
extern int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws);
|
||
|
|
|
||
|
|
/* TLB helper functions */
|
||
|
|
static inline unsigned int get_tlb_size(const struct kvmppc_44x_tlbe *tlbe)
|
||
|
|
{
|
||
|
|
return (tlbe->word0 >> 4) & 0xf;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline gva_t get_tlb_eaddr(const struct kvmppc_44x_tlbe *tlbe)
|
||
|
|
{
|
||
|
|
return tlbe->word0 & 0xfffffc00;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline gva_t get_tlb_bytes(const struct kvmppc_44x_tlbe *tlbe)
|
||
|
|
{
|
||
|
|
unsigned int pgsize = get_tlb_size(tlbe);
|
||
|
|
return 1 << 10 << (pgsize << 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline gva_t get_tlb_end(const struct kvmppc_44x_tlbe *tlbe)
|
||
|
|
{
|
||
|
|
return get_tlb_eaddr(tlbe) + get_tlb_bytes(tlbe) - 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline u64 get_tlb_raddr(const struct kvmppc_44x_tlbe *tlbe)
|
||
|
|
{
|
||
|
|
u64 word1 = tlbe->word1;
|
||
|
|
return ((word1 & 0xf) << 32) | (word1 & 0xfffffc00);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline unsigned int get_tlb_tid(const struct kvmppc_44x_tlbe *tlbe)
|
||
|
|
{
|
||
|
|
return tlbe->tid & 0xff;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline unsigned int get_tlb_ts(const struct kvmppc_44x_tlbe *tlbe)
|
||
|
|
{
|
||
|
|
return (tlbe->word0 >> 8) & 0x1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline unsigned int get_tlb_v(const struct kvmppc_44x_tlbe *tlbe)
|
||
|
|
{
|
||
|
|
return (tlbe->word0 >> 9) & 0x1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline unsigned int get_mmucr_stid(const struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
return vcpu->arch.mmucr & 0xff;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline unsigned int get_mmucr_sts(const struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
return (vcpu->arch.mmucr >> 16) & 0x1;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* __KVM_POWERPC_TLB_H__ */
|