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linux-user: Use cpu_untagged_addr in access_ok; split out *_untagged

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Provide both tagged and untagged versions of access_ok.
In a few places use thread_cpu, as the user is several
callees removed from do_syscall1.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210212184902.1251044-17-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson
2021-02-12 10:48:47 -08:00
committed by Peter Maydell
parent 46b12f461c
commit c7169b022b
6 changed files with 24 additions and 13 deletions
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2
linux-user/i386/cpu_loop.c
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@@ -99,7 +99,7 @@ static bool write_ok_or_segv(CPUX86State *env, abi_ptr addr, size_t len)
* For all the vsyscalls, NULL means "don't write anything" not
* "write it at address 0".
*/
if (addr == 0 || access_ok(VERIFY_WRITE, addr, len)) {
if (addr == 0 || access_ok(env_cpu(env), VERIFY_WRITE, addr, len)) {
return true;
}