yuzu/unicorn
1
0
Fork 0
mirror of https://github.com/yuzu-emu/unicorn.git synced 2025-03-28 22:47:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

cputlb: Move probe_write out of softmmu_template.h

Browse source 
Backports commit 3b08f0a92545ba06fbdeaae929a5172480300c33 from qemu
This commit is contained in:
Richard Henderson 2018-02-27 12:25:17 -05:00 committed by Lioncash
parent 79e4c001a9
commit 5df7c9eec7
No known key found for this signature in database
GPG key ID: 4E3C3CC1031BA9C7
2 changed files with 21 additions and 23 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
qemu/cputlb.c
View file

@ -516,6 +516,27 @@ static bool victim_tlb_hit(CPUArchState *env, size_t mmu_idx, size_t index,
victim_tlb_hit(env, mmu_idx, index, offsetof(CPUTLBEntry, TY), \
(ADDR) & TARGET_PAGE_MASK)
/* Probe for whether the specified guest write access is permitted.
* If it is not permitted then an exception will be taken in the same
* way as if this were a real write access (and we will not return).
* Otherwise the function will return, and there will be a valid
* entry in the TLB for this access.
*/
void probe_write(CPUArchState *env, target_ulong addr, int mmu_idx,
uintptr_t retaddr)
{
int index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
target_ulong tlb_addr = env->tlb_table[mmu_idx][index].addr_write;
if ((addr & TARGET_PAGE_MASK)
!= (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) {
/* TLB entry is for a different page */
if (!VICTIM_TLB_HIT(addr_write, addr)) {
tlb_fill(ENV_GET_CPU(env), addr, MMU_DATA_STORE, mmu_idx, retaddr);
}
}
}
#define MMUSUFFIX _mmu
#define DATA_SIZE 1

23
qemu/softmmu_template.h
View file

@ -832,29 +832,6 @@ void helper_be_st_name(CPUArchState *env, target_ulong addr, DATA_TYPE val,
glue(glue(st, SUFFIX), _be_p)((uint8_t *)haddr, val);
}
#endif /* DATA_SIZE > 1 */
#if DATA_SIZE == 1
/* Probe for whether the specified guest write access is permitted.
* If it is not permitted then an exception will be taken in the same
* way as if this were a real write access (and we will not return).
* Otherwise the function will return, and there will be a valid
* entry in the TLB for this access.
*/
void probe_write(CPUArchState *env, target_ulong addr, int mmu_idx,
uintptr_t retaddr)
{
int index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
target_ulong tlb_addr = env->tlb_table[mmu_idx][index].addr_write;
if ((addr & TARGET_PAGE_MASK)
!= (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) {
/* TLB entry is for a different page */
if (!VICTIM_TLB_HIT(addr_write, addr)) {
tlb_fill(ENV_GET_CPU(env), addr, MMU_DATA_STORE, mmu_idx, retaddr);
}
}
}
#endif
#endif /* !defined(SOFTMMU_CODE_ACCESS) */
#undef READ_ACCESS_TYPE