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| author | Thomas Huth <thuth@linux.vnet.ibm.com> | 2013-06-25 14:59:12 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2013-07-30 16:11:00 +0200 |
| commit | 71ed827abd57dc7947ce3316118d0e601e70fac9 (patch) | |
| tree | 9454732b113dccf5412cefaa3e1fb478f68ff5dc /target-s390x | |
| parent | 7ae5a7c0f63cc625cf31a9c9f18cc07f4049e48f (diff) | |
| download | qemu-71ed827abd57dc7947ce3316118d0e601e70fac9.zip qemu-71ed827abd57dc7947ce3316118d0e601e70fac9.tar.gz qemu-71ed827abd57dc7947ce3316118d0e601e70fac9.tar.bz2 | |
s390x/ioinst: Fixed priority of operand exceptions
Operand exceptions have a lower priority than specification and address
exceptions. Thus the checks for operand exceptions must be done later.
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'target-s390x')
| -rw-r--r-- | target-s390x/ioinst.c | 30 |
1 files changed, 13 insertions, 17 deletions
diff --git a/target-s390x/ioinst.c b/target-s390x/ioinst.c index 098bd8d..85fd285 100644 --- a/target-s390x/ioinst.c +++ b/target-s390x/ioinst.c @@ -151,11 +151,6 @@ int ioinst_handle_msch(CPUS390XState *env, uint64_t reg1, uint32_t ipb) int cc; hwaddr len = sizeof(*schib); - if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) { - program_interrupt(env, PGM_OPERAND, 2); - return -EIO; - } - trace_ioinst_sch_id("msch", cssid, ssid, schid); addr = decode_basedisp_s(env, ipb); if (addr & 3) { program_interrupt(env, PGM_SPECIFICATION, 2); @@ -167,11 +162,13 @@ int ioinst_handle_msch(CPUS390XState *env, uint64_t reg1, uint32_t ipb) cc = -EIO; goto out; } - if (!ioinst_schib_valid(schib)) { + if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid) || + !ioinst_schib_valid(schib)) { program_interrupt(env, PGM_OPERAND, 2); cc = -EIO; goto out; } + 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); @@ -226,11 +223,6 @@ int ioinst_handle_ssch(CPUS390XState *env, uint64_t reg1, uint32_t ipb) int cc; hwaddr len = sizeof(*orig_orb); - if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) { - program_interrupt(env, PGM_OPERAND, 2); - return -EIO; - } - trace_ioinst_sch_id("ssch", cssid, ssid, schid); addr = decode_basedisp_s(env, ipb); if (addr & 3) { program_interrupt(env, PGM_SPECIFICATION, 2); @@ -243,11 +235,13 @@ int ioinst_handle_ssch(CPUS390XState *env, uint64_t reg1, uint32_t ipb) goto out; } copy_orb_from_guest(&orb, orig_orb); - if (!ioinst_orb_valid(&orb)) { + if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid) || + !ioinst_orb_valid(&orb)) { program_interrupt(env, PGM_OPERAND, 2); cc = -EIO; goto out; } + trace_ioinst_sch_id("ssch", cssid, ssid, schid); sch = css_find_subch(m, cssid, ssid, schid); if (sch && css_subch_visible(sch)) { ret = css_do_ssch(sch, &orb); @@ -306,11 +300,6 @@ int ioinst_handle_stsch(CPUS390XState *env, uint64_t reg1, uint32_t ipb) SCHIB *schib; hwaddr len = sizeof(*schib); - if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) { - program_interrupt(env, PGM_OPERAND, 2); - return -EIO; - } - trace_ioinst_sch_id("stsch", cssid, ssid, schid); addr = decode_basedisp_s(env, ipb); if (addr & 3) { program_interrupt(env, PGM_SPECIFICATION, 2); @@ -322,6 +311,13 @@ int ioinst_handle_stsch(CPUS390XState *env, uint64_t reg1, uint32_t ipb) cc = -EIO; goto out; } + + if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) { + program_interrupt(env, PGM_OPERAND, 2); + cc = -EIO; + goto out; + } + trace_ioinst_sch_id("stsch", cssid, ssid, schid); sch = css_find_subch(m, cssid, ssid, schid); if (sch) { if (css_subch_visible(sch)) { |