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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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8
linux-user/hppa/cpu_loop.c
View file

@ -35,7 +35,7 @@ static abi_ulong hppa_lws(CPUHPPAState *env)
return -TARGET_ENOSYS;
case 0: /* elf32 atomic 32bit cmpxchg */
if ((addr & 3) || !access_ok(VERIFY_WRITE, addr, 4)) {
if ((addr & 3) || !access_ok(cs, VERIFY_WRITE, addr, 4)) {
return -TARGET_EFAULT;
}
old = tswap32(old);
@ -50,9 +50,9 @@ static abi_ulong hppa_lws(CPUHPPAState *env)
return -TARGET_ENOSYS;
}
if (((addr | old | new) & ((1 << size) - 1))
|| !access_ok(VERIFY_WRITE, addr, 1 << size)
|| !access_ok(VERIFY_READ, old, 1 << size)
|| !access_ok(VERIFY_READ, new, 1 << size)) {
|| !access_ok(cs, VERIFY_WRITE, addr, 1 << size)
|| !access_ok(cs, VERIFY_READ, old, 1 << size)
|| !access_ok(cs, VERIFY_READ, new, 1 << size)) {
return -TARGET_EFAULT;
}
/* Note that below we use host-endian loads so that the cmpxchg