mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 13:05:10 +07:00
5ce941ee42
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
68 lines
1.8 KiB
C
68 lines
1.8 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. 2008
|
|
*
|
|
* Authors: Hollis Blanchard <hollisb@us.ibm.com>
|
|
*/
|
|
|
|
#ifndef __ASM_44X_H__
|
|
#define __ASM_44X_H__
|
|
|
|
#include <linux/kvm_host.h>
|
|
|
|
#define PPC44x_TLB_SIZE 64
|
|
|
|
/* If the guest is expecting it, this can be as large as we like; we'd just
|
|
* need to find some way of advertising it. */
|
|
#define KVM44x_GUEST_TLB_SIZE 64
|
|
|
|
struct kvmppc_44x_tlbe {
|
|
u32 tid; /* Only the low 8 bits are used. */
|
|
u32 word0;
|
|
u32 word1;
|
|
u32 word2;
|
|
};
|
|
|
|
struct kvmppc_44x_shadow_ref {
|
|
struct page *page;
|
|
u16 gtlb_index;
|
|
u8 writeable;
|
|
u8 tid;
|
|
};
|
|
|
|
struct kvmppc_vcpu_44x {
|
|
/* Unmodified copy of the guest's TLB. */
|
|
struct kvmppc_44x_tlbe guest_tlb[KVM44x_GUEST_TLB_SIZE];
|
|
|
|
/* References to guest pages in the hardware TLB. */
|
|
struct kvmppc_44x_shadow_ref shadow_refs[PPC44x_TLB_SIZE];
|
|
|
|
/* State of the shadow TLB at guest context switch time. */
|
|
struct kvmppc_44x_tlbe shadow_tlb[PPC44x_TLB_SIZE];
|
|
u8 shadow_tlb_mod[PPC44x_TLB_SIZE];
|
|
|
|
struct kvm_vcpu vcpu;
|
|
};
|
|
|
|
static inline struct kvmppc_vcpu_44x *to_44x(struct kvm_vcpu *vcpu)
|
|
{
|
|
return container_of(vcpu, struct kvmppc_vcpu_44x, vcpu);
|
|
}
|
|
|
|
void kvmppc_44x_tlb_put(struct kvm_vcpu *vcpu);
|
|
void kvmppc_44x_tlb_load(struct kvm_vcpu *vcpu);
|
|
|
|
#endif /* __ASM_44X_H__ */
|