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accel/tcg: Adjust probe_access call to page_check_range 

We have validated that addr+size does not cross a page boundary.
Therefore we need to validate exactly one page.  We can achieve
that passing any value 1 <= x <= size to page_check_range.

Passing 1 will simplify the next patch.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200508154359.7494-5-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2020-05-08 08:43:44 -07:00 committed by Peter Maydell
parent 857129b341
commit 7a1bfee682
1 changed files with 1 additions and 1 deletions
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2
accel/tcg/user-exec.c
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@ -211,7 +211,7 @@ void *probe_access(CPUArchState *env, target_ulong addr, int size,
g_assert_not_reached();
}
if (!guest_addr_valid(addr) || page_check_range(addr, size, flags) < 0) {
if (!guest_addr_valid(addr) || page_check_range(addr, 1, flags) < 0) {
CPUState *cpu = env_cpu(env);
CPUClass *cc = CPU_GET_CLASS(cpu);
cc->tlb_fill(cpu, addr, size, access_type, MMU_USER_IDX, false,