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s390: Use s390_cpu_physical_memory_map for tpi.

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Map the I/O interruption code before calling into css.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Cornelia Huck 2013-01-27 23:59:26 +00:00 • committed by Alexander Graf
parent 2e788490d8
commit 50c8d9bfc6
4 changed files with 24 additions and 8 deletions
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19
target-s390x/ioinst.c
View file

@ -619,16 +619,25 @@ int ioinst_handle_tpi(CPUS390XState *env, uint32_t ipb)
{
uint64_t addr;
int lowcore;
IOIntCode *int_code;
hwaddr len, orig_len;
int ret;
trace_ioinst("tpi");
addr = decode_basedisp_s(env, ipb);
lowcore = addr ? 0 : 1;
if (addr < 8192) {
addr += env->psa;
} else if ((env->psa <= addr) && (addr < env->psa + 8192)) {
addr -= env->psa;
len = lowcore ? 8 /* two words */ : 12 /* three words */;
orig_len = len;
int_code = s390_cpu_physical_memory_map(env, addr, &len, 1);
if (!int_code || (len != orig_len)) {
program_interrupt(env, PGM_SPECIFICATION, 2);
ret = -EIO;
goto out;
}
return css_do_tpi(addr, lowcore);
ret = css_do_tpi(int_code, lowcore);
out:
s390_cpu_physical_memory_unmap(env, int_code, len, 1);
return ret;
}
#define SCHM_REG1_RES(_reg) (_reg & 0x000000000ffffffc)