From: Cornelia Huck <cohuck@redhat.com>
To: Janosch Frank <frankja@linux.ibm.com>
Cc: thuth@redhat.com, pmorel@linux.ibm.com, david@redhat.com,
qemu-devel@nongnu.org, borntraeger@de.ibm.com,
qemu-s390x@nongnu.org, mihajlov@linux.ibm.com
Subject: Re: [PATCH 08/15] s390x: protvirt: KVM intercept changes
Date: Thu, 21 Nov 2019 15:07:04 +0100 [thread overview]
Message-ID: <20191121150704.4d5a09ef.cohuck@redhat.com> (raw)
In-Reply-To: <20191120114334.2287-9-frankja@linux.ibm.com>
On Wed, 20 Nov 2019 06:43:27 -0500
Janosch Frank <frankja@linux.ibm.com> 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, but the 108 is a notification, that something
> happened and the hypervisor might need to adjust its tracking data to
> that fact. An example for that is the set prefix notification
> interception, where KVM only reads the new prefix, but does not update
> the prefix in the state description.
>
> Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
> ---
> target/s390x/kvm.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c
> index 418154ccfe..58251c0229 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_NOT 0x6c
_NOTIF ?
>
> #define NR_LOCAL_IRQS 32
> /*
> @@ -151,6 +153,7 @@ static int cap_s390_irq;
> static int cap_ri;
> static int cap_gs;
> static int cap_hpage_1m;
> +static int cap_protvirt;
>
> static int active_cmma;
>
> @@ -336,6 +339,7 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
> cap_async_pf = kvm_check_extension(s, KVM_CAP_ASYNC_PF);
> cap_mem_op = kvm_check_extension(s, KVM_CAP_S390_MEM_OP);
> cap_s390_irq = kvm_check_extension(s, KVM_CAP_S390_INJECT_IRQ);
> + cap_protvirt = kvm_check_extension(s, KVM_CAP_S390_PROTECTED);
You don't seem to do anything with this yet?
>
> if (!kvm_check_extension(s, KVM_CAP_S390_GMAP)
> || !kvm_check_extension(s, KVM_CAP_S390_COW)) {
> @@ -1664,6 +1668,8 @@ 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_NOT:
> r = handle_instruction(cpu, run);
Doesn't handle_instruction() want to know whether it got a request for
emulation vs a notification?
> break;
> case ICPT_PROGRAM:
next prev parent reply other threads:[~2019-11-21 14:08 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-20 11:43 [PATCH 00/15] s390x: Protected Virtualization support Janosch Frank
2019-11-20 11:43 ` [PATCH 01/15] s390x: Cleanup cpu resets Janosch Frank
2019-11-21 11:10 ` Cornelia Huck
2019-11-21 11:32 ` Janosch Frank
2019-11-21 12:18 ` Cornelia Huck
2019-11-21 12:53 ` Thomas Huth
2019-11-21 13:11 ` Janosch Frank
2019-11-21 13:17 ` Thomas Huth
2019-11-20 11:43 ` [PATCH 02/15] s390x: Beautify diag308 handling Janosch Frank
2019-11-21 11:17 ` Cornelia Huck
2019-11-21 11:27 ` Janosch Frank
2019-11-21 11:21 ` David Hildenbrand
2019-11-21 11:28 ` Janosch Frank
2019-11-21 13:12 ` Thomas Huth
2019-11-21 13:20 ` Thomas Huth
2019-11-21 13:53 ` Janosch Frank
2019-11-20 11:43 ` [PATCH 03/15] s390x: protvirt: Add diag308 subcodes 8 - 10 Janosch Frank
2019-11-21 12:47 ` Cornelia Huck
2019-11-21 14:36 ` Thomas Huth
2020-02-07 7:56 ` Janosch Frank
2019-11-20 11:43 ` [PATCH 04/15] Header sync protvirt Janosch Frank
2019-11-21 12:59 ` Cornelia Huck
2019-11-21 13:12 ` Janosch Frank
2019-11-21 13:17 ` Cornelia Huck
2019-11-20 11:43 ` [PATCH 05/15] s390x: protvirt: Sync PV state Janosch Frank
2019-11-21 13:25 ` Cornelia Huck
2019-11-21 13:43 ` Janosch Frank
2019-11-21 14:43 ` Thomas Huth
2019-11-20 11:43 ` [PATCH 06/15] s390x: protvirt: Support unpack facility Janosch Frank
2019-11-20 13:43 ` Cornelia Huck
2019-11-21 11:33 ` Janosch Frank
2019-11-21 11:27 ` David Hildenbrand
2019-11-21 14:25 ` Janosch Frank
2019-11-21 14:28 ` David Hildenbrand
2019-11-21 14:31 ` Christian Borntraeger
2019-11-21 14:32 ` Janosch Frank
2019-11-22 13:39 ` Cornelia Huck
2019-11-22 13:49 ` Janosch Frank
2019-11-28 14:07 ` Thomas Huth
2019-11-28 14:20 ` Janosch Frank
2019-11-20 11:43 ` [PATCH 07/15] s390x: protvirt: Handle diag 308 subcodes 0,1,3,4 Janosch Frank
2019-11-21 13:50 ` Cornelia Huck
2019-11-21 14:00 ` Janosch Frank
2019-11-21 14:04 ` Janosch Frank
2019-11-21 14:17 ` Cornelia Huck
2019-11-21 14:23 ` Janosch Frank
2019-11-20 11:43 ` [PATCH 08/15] s390x: protvirt: KVM intercept changes Janosch Frank
2019-11-21 14:07 ` Cornelia Huck [this message]
2019-11-21 14:29 ` Janosch Frank
2019-11-21 15:11 ` Thomas Huth
2019-11-28 16:38 ` Janosch Frank
2019-11-28 16:45 ` Cornelia Huck
2019-11-28 16:54 ` Janosch Frank
2019-11-20 11:43 ` [PATCH 09/15] s390x: protvirt: SCLP interpretation Janosch Frank
2019-11-21 14:11 ` Cornelia Huck
2019-11-21 14:24 ` Janosch Frank
2019-11-22 13:48 ` Pierre Morel
2019-11-20 11:43 ` [PATCH 10/15] s390x: protvirt: Add new VCPU reset functions Janosch Frank
2019-11-20 11:43 ` [PATCH 11/15] RFC: s390x: Exit on vcpu reset error Janosch Frank
2019-11-21 12:14 ` David Hildenbrand
2019-11-21 12:19 ` Janosch Frank
2019-11-21 12:22 ` David Hildenbrand
2019-11-20 11:43 ` [PATCH 12/15] s390x: protvirt: Set guest IPL PSW Janosch Frank
2019-11-28 14:30 ` Thomas Huth
2019-11-28 15:39 ` Janosch Frank
2019-11-20 11:43 ` [PATCH 13/15] s390x: protvirt: Move diag 308 data over SIDAD Janosch Frank
2019-11-28 14:40 ` Thomas Huth
2019-11-28 16:08 ` Janosch Frank
2019-11-28 16:14 ` David Hildenbrand
2019-11-20 11:43 ` [PATCH 14/15] s390x: protvirt: Disable address checks for PV guest IO emulation Janosch Frank
2019-11-28 15:28 ` Thomas Huth
2019-11-28 15:36 ` Janosch Frank
2019-11-28 16:10 ` Janosch Frank
2019-11-28 16:18 ` Cornelia Huck
2019-11-28 16:24 ` Janosch Frank
2019-11-28 20:08 ` Thomas Huth
2019-11-20 11:43 ` [PATCH 15/15] s390x: protvirt: Handle SIGP store status correctly Janosch Frank
2019-11-21 11:24 ` David Hildenbrand
2019-11-21 11:29 ` Janosch Frank
2019-11-28 15:30 ` Thomas Huth
2019-11-20 13:26 ` [PATCH 00/15] s390x: Protected Virtualization support Cornelia Huck
2019-11-20 13:33 ` Janosch Frank
2019-11-21 9:13 ` Janosch Frank
2019-11-21 9:39 ` Cornelia Huck
2019-11-29 11:08 ` Daniel P. Berrangé
2019-11-29 12:14 ` Janosch Frank
2019-11-29 12:35 ` Daniel P. Berrangé
2019-11-29 14:02 ` Janosch Frank
2019-11-29 14:30 ` Viktor Mihajlovski
2019-12-03 10:49 ` Daniel P. Berrangé
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