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target/ppc: introduce mmu-books.h

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Intrudoce a header common to all BookS MMUs, that can hold code that is
common to hash32 and book3s-v3 MMUs.

Suggested-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Bruno Larsen (billionai) <bruno.larsen@eldorado.org.br>
Message-Id: <20210706150316.21005-2-bruno.larsen@eldorado.org.br>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Bruno Larsen (billionai) 2021-07-06 12:03:15 -03:00 committed by David Gibson
parent 03695a9870
commit a97c4d3c1e
2 changed files with 31 additions and 13 deletions
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14
target/ppc/mmu-book3s-v3.h
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@ -21,6 +21,7 @@
#define PPC_MMU_BOOK3S_V3_H
#include "mmu-hash64.h"
#include "mmu-books.h"
#ifndef CONFIG_USER_ONLY
@ -47,19 +48,6 @@ struct prtb_entry {
uint64_t prtbe0, prtbe1;
};
/*
* These correspond to the mmu_idx values computed in
* hreg_compute_hflags_value. See the tables therein
*
* They are here because some bits are inverted for BookE MMUs
* not necessarily because they only work for BookS. However,
* we only needed to change BookS MMUs, we left the functions
* here to avoid other possible bugs for untested MMUs
*/
static inline bool mmuidx_pr(int idx) { return !(idx & 1); }
static inline bool mmuidx_real(int idx) { return idx & 2; }
static inline bool mmuidx_hv(int idx) { return idx & 4; }
#ifdef TARGET_PPC64
static inline bool ppc64_use_proc_tbl(PowerPCCPU *cpu)

30
target/ppc/mmu-books.h Normal file
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@ -0,0 +1,30 @@
/*
* PowerPC BookS emulation generic mmu definitions for qemu.
*
* Copyright (c) 2021 Instituto de Pesquisas Eldorado (eldorado.org.br)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PPC_MMU_BOOKS_H
#define PPC_MMU_BOOKS_H
/*
* These correspond to the mmu_idx values computed in
* hreg_compute_hflags_value. See the tables therein
*/
static inline bool mmuidx_pr(int idx) { return !(idx & 1); }
static inline bool mmuidx_real(int idx) { return idx & 2; }
static inline bool mmuidx_hv(int idx) { return idx & 4; }
#endif /* PPC_MMU_BOOKS_H */