From: Cornelia Huck <cornelia.huck@de.ibm.com>
To: Gleb Natapov <gleb@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
KVM <kvm@vger.kernel.org>,
linux-s390 <linux-s390@vger.kernel.org>,
Thomas Huth <thuth@linux.vnet.ibm.com>
Subject: [PATCH 2/7] KVM: s390: Privileged operation check for TPROT
Date: Thu, 20 Jun 2013 17:22:00 +0200 [thread overview]
Message-ID: <1371741725-53624-3-git-send-email-cornelia.huck@de.ibm.com> (raw)
In-Reply-To: <1371741725-53624-1-git-send-email-cornelia.huck@de.ibm.com>
From: Thomas Huth <thuth@linux.vnet.ibm.com>
TPROT is a privileged instruction and thus should generate a privileged
operation exception when the problem state bit is not cleared in the PSW.
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
---
arch/s390/kvm/priv.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index a21e014..04dc4a1 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -596,6 +596,9 @@ static int handle_tprot(struct kvm_vcpu *vcpu)
vcpu->stat.instruction_tprot++;
+ if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
+ return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
+
kvm_s390_get_base_disp_sse(vcpu, &address1, &address2);
/* we only handle the Linux memory detection case:
--
1.8.2.2
next prev parent reply other threads:[~2013-06-20 15:22 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-20 15:21 [PATCH 0/7] KVM: s390: further fixes for -next Cornelia Huck
2013-06-20 15:21 ` [PATCH 1/7] KVM: s390: Renamed PGM_PRIVILEGED_OPERATION Cornelia Huck
2013-06-20 15:22 ` Cornelia Huck [this message]
2013-06-20 15:22 ` [PATCH 3/7] KVM: s390: Privileged operation checks moved to instruction handlers Cornelia Huck
2013-06-20 15:22 ` [PATCH 4/7] KVM: s390: Check for PSTATE when handling DIAGNOSE Cornelia Huck
2013-06-20 15:22 ` [PATCH 5/7] KVM: s390: Check for access exceptions during TPI Cornelia Huck
2013-06-20 15:22 ` [PATCH 6/7] KVM: s390: Reworked LCTL and LCTLG instructions Cornelia Huck
2013-06-20 15:22 ` [PATCH 7/7] KVM: s390: Fixed priority of execution in STSI Cornelia Huck
2013-06-20 21:33 ` [PATCH 0/7] KVM: s390: further fixes for -next Paolo Bonzini
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1371741725-53624-3-git-send-email-cornelia.huck@de.ibm.com \
--to=cornelia.huck@de.ibm.com \
--cc=borntraeger@de.ibm.com \
--cc=gleb@redhat.com \
--cc=heiko.carstens@de.ibm.com \
--cc=kvm@vger.kernel.org \
--cc=linux-s390@vger.kernel.org \
--cc=pbonzini@redhat.com \
--cc=schwidefsky@de.ibm.com \
--cc=thuth@linux.vnet.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox