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authorThomas Huth <thuth@linux.vnet.ibm.com>2015-02-12 18:09:33 +0100
committerChristian Borntraeger <borntraeger@de.ibm.com>2015-02-18 09:37:15 +0100
commit14b4e13d4c74f52875d9e1456a126ae076fd2204 (patch)
tree6f2441b7a91f1a204d51ba86234fce2663036e9f
parentbffd09cd76bc800f466b47d32b35470f9ccef88c (diff)
s390x/ioinst: Rework memory access in MSCH instruction
Change the handler for MSCH to use the new logical memory access functions. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
-rw-r--r--target-s390x/ioinst.c20
1 files changed, 7 insertions, 13 deletions
diff --git a/target-s390x/ioinst.c b/target-s390x/ioinst.c
index 1ac5d61c56..1569df6913 100644
--- a/target-s390x/ioinst.c
+++ b/target-s390x/ioinst.c
@@ -1,7 +1,7 @@
/*
* I/O instructions for S/390
*
- * Copyright 2012 IBM Corp.
+ * Copyright 2012, 2015 IBM Corp.
* Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or (at
@@ -144,11 +144,10 @@ void ioinst_handle_msch(S390CPU *cpu, uint64_t reg1, uint32_t ipb)
{
int cssid, ssid, schid, m;
SubchDev *sch;
- SCHIB *schib;
+ SCHIB schib;
uint64_t addr;
int ret = -ENODEV;
int cc;
- hwaddr len = sizeof(*schib);
CPUS390XState *env = &cpu->env;
addr = decode_basedisp_s(env, ipb);
@@ -156,20 +155,18 @@ void ioinst_handle_msch(S390CPU *cpu, uint64_t reg1, uint32_t ipb)
program_interrupt(env, PGM_SPECIFICATION, 2);
return;
}
- schib = s390_cpu_physical_memory_map(env, addr, &len, 0);
- if (!schib || len != sizeof(*schib)) {
- program_interrupt(env, PGM_ADDRESSING, 2);
- goto out;
+ if (s390_cpu_virt_mem_read(cpu, addr, &schib, sizeof(schib))) {
+ return;
}
if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid) ||
- !ioinst_schib_valid(schib)) {
+ !ioinst_schib_valid(&schib)) {
program_interrupt(env, PGM_OPERAND, 2);
- goto out;
+ return;
}
trace_ioinst_sch_id("msch", cssid, ssid, schid);
sch = css_find_subch(m, cssid, ssid, schid);
if (sch && css_subch_visible(sch)) {
- ret = css_do_msch(sch, schib);
+ ret = css_do_msch(sch, &schib);
}
switch (ret) {
case -ENODEV:
@@ -186,9 +183,6 @@ void ioinst_handle_msch(S390CPU *cpu, uint64_t reg1, uint32_t ipb)
break;
}
setcc(cpu, cc);
-
-out:
- s390_cpu_physical_memory_unmap(env, schib, len, 0);
}
static void copy_orb_from_guest(ORB *dest, const ORB *src)