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softmmu: Add probe_write()

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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.

Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
This commit is contained in:
Yongbok Kim 2015-06-01 12:13:23 +01:00 • committed by Leon Alrae
parent be3a8c53b4
commit 3b4afc9e75
2 changed files with 24 additions and 0 deletions
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2
include/exec/exec-all.h
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@ -105,6 +105,8 @@ void tlb_set_page_with_attrs(CPUState *cpu, target_ulong vaddr,
hwaddr paddr, MemTxAttrs attrs,
int prot, int mmu_idx, target_ulong size);
void tb_invalidate_phys_addr(AddressSpace *as, hwaddr addr);
void probe_write(CPUArchState *env, target_ulong addr, int mmu_idx,
uintptr_t retaddr);
#else
static inline void tlb_flush_page(CPUState *cpu, target_ulong addr)
{