| Message ID | 20200220125638.7241-7-frankja@linux.ibm.com |
|---|---|
| State | New |
| Headers | show |
| Series | s390x: Protected Virtualization support | expand |
On 20.02.20 13:56, Janosch Frank wrote: > Secure guests no longer intercept with code 4 for an instruction > interception. Instead they have codes 104 and 108 for secure > instruction interception and secure instruction notification > respectively. > > The 104 mirrors the 4 interception. > > The 108 is a notification interception to let KVM and QEMU know that > something changed and we need to update tracking information or > perform specific tasks. It's currently taken for the following > instructions: > > * stpx (To inform about the changed prefix location) > * sclp (On incorrect SCCB values, so we can inject a IRQ) > * sigp (All but "stop and store status") > * diag308 (Subcodes 0/1) > > Signed-off-by: Janosch Frank <frankja@linux.ibm.com> > --- > target/s390x/kvm.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c > index 1d6fd6a27b..eec0b92479 100644 > --- a/target/s390x/kvm.c > +++ b/target/s390x/kvm.c > @@ -115,6 +115,8 @@ > #define ICPT_CPU_STOP 0x28 > #define ICPT_OPEREXC 0x2c > #define ICPT_IO 0x40 > +#define ICPT_PV_INSTR 0x68 > +#define ICPT_PV_INSTR_NOTIFICATION 0x6c > > #define NR_LOCAL_IRQS 32 > /* > @@ -1693,6 +1695,8 @@ static int handle_intercept(S390CPU *cpu) > (long)cs->kvm_run->psw_addr); > switch (icpt_code) { > case ICPT_INSTRUCTION: > + case ICPT_PV_INSTR: > + case ICPT_PV_INSTR_NOTIFICATION: > r = handle_instruction(cpu, run); > break; > case ICPT_PROGRAM: > Reviewed-by: David Hildenbrand <david@redhat.com>
On 2/25/20 11:01 AM, David Hildenbrand wrote: > On 20.02.20 13:56, Janosch Frank wrote: >> Secure guests no longer intercept with code 4 for an instruction >> interception. Instead they have codes 104 and 108 for secure >> instruction interception and secure instruction notification >> respectively. >> >> The 104 mirrors the 4 interception. >> >> The 108 is a notification interception to let KVM and QEMU know that >> something changed and we need to update tracking information or >> perform specific tasks. It's currently taken for the following >> instructions: >> >> * stpx (To inform about the changed prefix location) >> * sclp (On incorrect SCCB values, so we can inject a IRQ) >> * sigp (All but "stop and store status") >> * diag308 (Subcodes 0/1) >> >> Signed-off-by: Janosch Frank <frankja@linux.ibm.com> >> --- >> target/s390x/kvm.c | 4 ++++ >> 1 file changed, 4 insertions(+) >> >> diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c >> index 1d6fd6a27b..eec0b92479 100644 >> --- a/target/s390x/kvm.c >> +++ b/target/s390x/kvm.c >> @@ -115,6 +115,8 @@ >> #define ICPT_CPU_STOP 0x28 >> #define ICPT_OPEREXC 0x2c >> #define ICPT_IO 0x40 >> +#define ICPT_PV_INSTR 0x68 >> +#define ICPT_PV_INSTR_NOTIFICATION 0x6c >> >> #define NR_LOCAL_IRQS 32 >> /* >> @@ -1693,6 +1695,8 @@ static int handle_intercept(S390CPU *cpu) >> (long)cs->kvm_run->psw_addr); >> switch (icpt_code) { >> case ICPT_INSTRUCTION: >> + case ICPT_PV_INSTR: >> + case ICPT_PV_INSTR_NOTIFICATION: >> r = handle_instruction(cpu, run); >> break; >> case ICPT_PROGRAM: >> > > Reviewed-by: David Hildenbrand <david@redhat.com> > Thanks!
diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c index 1d6fd6a27b..eec0b92479 100644 --- a/target/s390x/kvm.c +++ b/target/s390x/kvm.c @@ -115,6 +115,8 @@ #define ICPT_CPU_STOP 0x28 #define ICPT_OPEREXC 0x2c #define ICPT_IO 0x40 +#define ICPT_PV_INSTR 0x68 +#define ICPT_PV_INSTR_NOTIFICATION 0x6c #define NR_LOCAL_IRQS 32 /* @@ -1693,6 +1695,8 @@ static int handle_intercept(S390CPU *cpu) (long)cs->kvm_run->psw_addr); switch (icpt_code) { case ICPT_INSTRUCTION: + case ICPT_PV_INSTR: + case ICPT_PV_INSTR_NOTIFICATION: r = handle_instruction(cpu, run); break; case ICPT_PROGRAM:
Secure guests no longer intercept with code 4 for an instruction interception. Instead they have codes 104 and 108 for secure instruction interception and secure instruction notification respectively. The 104 mirrors the 4 interception. The 108 is a notification interception to let KVM and QEMU know that something changed and we need to update tracking information or perform specific tasks. It's currently taken for the following instructions: * stpx (To inform about the changed prefix location) * sclp (On incorrect SCCB values, so we can inject a IRQ) * sigp (All but "stop and store status") * diag308 (Subcodes 0/1) Signed-off-by: Janosch Frank <frankja@linux.ibm.com> --- target/s390x/kvm.c | 4 ++++ 1 file changed, 4 insertions(+)