linux_dsm_epyc7002/arch/s390/kvm
David Hildenbrand 261520dcfc KVM: s390: fix handling of write errors in the tpi handler
If the I/O interrupt could not be written to the guest provided
area (e.g. access exception), a program exception was injected into the
guest but "inti" wasn't freed, therefore resulting in a memory leak.

In addition, the I/O interrupt wasn't reinjected. Therefore the dequeued
interrupt is lost.

This patch fixes the problem while cleaning up the function and making the
cc and rc logic easier to handle.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org # 3.16+
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2015-03-06 13:40:33 +01:00
..
diag.c KVM: s390/cmm: Fix prefix handling for diag 10 balloon 2014-09-10 12:19:42 +02:00
gaccess.c KVM: s390: use facilities and cpu_id per KVM 2015-02-09 12:44:12 +01:00
gaccess.h KVM: s390: Enable DAT support for TPROT handler 2014-05-30 09:39:36 +02:00
guestdbg.c KVM: s390: return -EFAULT if copy_from_user() fails 2014-05-06 14:57:59 +02:00
intercept.c KVM: s390: Take addressing mode into account for MVPG interception 2015-01-23 13:25:38 +01:00
interrupt.c KVM: s390: floating irqs: fix user triggerable endless loop 2015-02-09 12:44:10 +01:00
irq.h KVM: s390: irq routing for adapter interrupts. 2014-03-21 13:43:00 +01:00
Kconfig rcu: Make SRCU optional by using CONFIG_SRCU 2015-01-06 11:04:29 -08:00
kvm-s390.c KVM: s390: non-LPAR case obsolete during facilities mask init 2015-03-04 10:33:25 +01:00
kvm-s390.h KVM: s390: include guest facilities in kvm facility test 2015-03-04 10:33:25 +01:00
Makefile KVM: s390: hardware support for guest debugging 2014-04-22 13:24:51 +02:00
priv.c KVM: s390: fix handling of write errors in the tpi handler 2015-03-06 13:40:33 +01:00
sigp.c KVM: s390: forward most SIGP orders to user space 2015-01-23 13:25:37 +01:00
trace-s390.h KVM: s390: handle stop irqs without action_bits 2015-01-23 13:25:33 +01:00
trace.h KVM: s390: interpretive execution of SIGP EXTERNAL CALL 2014-05-16 14:57:28 +02:00