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From: David Hildenbrand <david@redhat.com>
To: Janosch Frank <frankja@linux.ibm.com>, qemu-devel@nongnu.org
Cc: qemu-s390x@nongnu.org, mihajlov@linux.ibm.com, cohuck@redhat.com
Subject: Re: [PATCH v4 06/16] s390x: protvirt: KVM intercept changes
Date: Tue, 25 Feb 2020 11:01:03 +0100	[thread overview]
Message-ID: <2f1aabd4-426c-6314-0dd9-1817853adbc3@redhat.com> (raw)
In-Reply-To: <20200220125638.7241-7-frankja@linux.ibm.com>

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,

David / dhildenb



  reply	other threads:[~2020-02-25 10:02 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-20 12:56 [PATCH v4 00/16] s390x: Protected Virtualization support Janosch Frank
2020-02-20 12:56 ` [PATCH v4 01/16] Sync pv Janosch Frank
2020-02-25  9:42   ` David Hildenbrand
2020-02-25 11:10     ` Janosch Frank
2020-02-20 12:56 ` [PATCH v4 02/16] s390x: protvirt: Add diag308 subcodes 8 - 10 Janosch Frank
2020-02-21  9:49   ` Cornelia Huck
2020-02-21 11:42     ` Janosch Frank
2020-02-20 12:56 ` [PATCH v4 03/16] s390x: protvirt: Support unpack facility Janosch Frank
2020-02-24 14:13   ` Christian Borntraeger
2020-02-24 14:25     ` Janosch Frank
2020-02-20 12:56 ` [PATCH v4 04/16] s390x: protvirt: Add migration blocker Janosch Frank
2020-02-25  9:50   ` David Hildenbrand
2020-02-25 11:21     ` Janosch Frank
2020-02-20 12:56 ` [PATCH v4 05/16] s390x: protvirt: Handle diag 308 subcodes 0,1,3,4 Janosch Frank
2020-02-20 12:56 ` [PATCH v4 06/16] s390x: protvirt: KVM intercept changes Janosch Frank
2020-02-25 10:01   ` David Hildenbrand [this message]
2020-02-25 11:33     ` Janosch Frank
2020-02-20 12:56 ` [PATCH v4 07/16] s390x: Add SIDA memory ops Janosch Frank
2020-02-25  9:59   ` David Hildenbrand
2020-02-25 11:27     ` Janosch Frank
2020-02-20 12:56 ` [PATCH v4 08/16] s390x: protvirt: Move STSI data over SIDAD Janosch Frank
2020-02-25 10:05   ` David Hildenbrand
2020-02-20 12:56 ` [PATCH v4 09/16] s390x: protvirt: SCLP interpretation Janosch Frank
2020-02-20 12:56 ` [PATCH v4 10/16] s390x: protvirt: Set guest IPL PSW Janosch Frank
2020-02-20 12:56 ` [PATCH v4 11/16] s390x: protvirt: Move diag 308 data over SIDAD Janosch Frank
2020-02-20 12:56 ` [PATCH v4 12/16] s390x: protvirt: Disable address checks for PV guest IO emulation Janosch Frank
2020-02-20 12:56 ` [PATCH v4 13/16] s390x: protvirt: Move IO control structures over SIDA Janosch Frank
2020-02-20 12:56 ` [PATCH v4 14/16] s390x: protvirt: Handle SIGP store status correctly Janosch Frank
2020-02-20 12:56 ` [PATCH v4 15/16] s390x: Add unpack feature to GA1 Janosch Frank
2020-02-25  9:53   ` David Hildenbrand
2020-02-20 12:56 ` [PATCH v4 16/16] docs: Add protvirt docs Janosch Frank
2020-02-21 10:00   ` Cornelia Huck

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