40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
#include "qemu/osdep.h"
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#include "qemu/log.h"
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#include "cpu.h"
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#include "exec/exec-all.h"
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#include "qemu/host-utils.h"
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#include "exec/helper-proto.h"
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static int e2k_probe_access(CPUE2KState *env, target_ulong addr, int size,
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MMUAccessType access_type, int mmu_idx)
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{
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target_ulong addr_end = addr + size - 1;
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int flags;
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void *ignore;
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flags = probe_access_flags(env, addr, access_type, mmu_idx,
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true, &ignore, 0);
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if (flags & TLB_INVALID_MASK) {
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return 0;
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} else if ((addr & TARGET_PAGE_MASK) != (addr_end & TARGET_PAGE_MASK)) {
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flags = probe_access_flags(env, addr_end, access_type, mmu_idx, true,
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&ignore, 0);
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return !(flags & TLB_INVALID_MASK);
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}
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return 1;
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}
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int HELPER(probe_read_access)(CPUE2KState *env, target_ulong addr,
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int size, int mmu_idx)
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{
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return e2k_probe_access(env, addr, size, MMU_DATA_LOAD, mmu_idx);
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}
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int HELPER(probe_write_access)(CPUE2KState *env, target_ulong addr,
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int size, int mmu_idx)
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{
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return e2k_probe_access(env, addr, size, MMU_DATA_STORE, mmu_idx);
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}
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