From: Janosch Frank <frankja@linux.ibm.com>
To: Cornelia Huck <cohuck@redhat.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 06/15] s390x: protvirt: Support unpack facility
Date: Thu, 21 Nov 2019 12:33:32 +0100 [thread overview]
Message-ID: <7d070c85-936a-f1e4-470c-f5c9be1e4157@linux.ibm.com> (raw)
In-Reply-To: <20191120144327.0c9e22cb.cohuck@redhat.com>
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On 11/20/19 2:43 PM, Cornelia Huck wrote:
> On Wed, 20 Nov 2019 06:43:25 -0500
> Janosch Frank <frankja@linux.ibm.com> wrote:
>
>> When a guest has saved a ipib of type 5 and call diagnose308 with
>> subcode 10, we have to setup the protected processing environment via
>> Ultravisor calls. The calls are done by KVM and are exposed via an API.
>>
>> The following steps are necessary:
>> 1. Create a VM (register it with the Ultravisor)
>> 2. Create secure CPUs for all of our current cpus
>> 3. Forward the secure header to the Ultravisor (has all information on
>> how to decrypt the image and VM information)
>> 4. Protect image pages from the host and decrypt them
>> 5. Verify the image integrity
>>
>> Only after step 5 a protected VM is allowed to run.
>>
>> Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
>> ---
>> hw/s390x/Makefile.objs | 1 +
>> hw/s390x/ipl.c | 33 ++++++++
>> hw/s390x/ipl.h | 2 +
>> hw/s390x/pv.c | 118 ++++++++++++++++++++++++++++
>> hw/s390x/pv.h | 26 ++++++
>> hw/s390x/s390-virtio-ccw.c | 45 ++++++++---
>> target/s390x/cpu_features_def.inc.h | 1 +
>> 7 files changed, 216 insertions(+), 10 deletions(-)
>> create mode 100644 hw/s390x/pv.c
>> create mode 100644 hw/s390x/pv.h
>>
>> diff --git a/hw/s390x/Makefile.objs b/hw/s390x/Makefile.objs
>> index 94e57113d8..568bab9711 100644
>> --- a/hw/s390x/Makefile.objs
>> +++ b/hw/s390x/Makefile.objs
>> @@ -31,6 +31,7 @@ obj-y += tod-qemu.o
>> obj-$(CONFIG_KVM) += tod-kvm.o
>> obj-$(CONFIG_KVM) += s390-skeys-kvm.o
>> obj-$(CONFIG_KVM) += s390-stattrib-kvm.o s390-mchk.o
>> +obj-$(CONFIG_KVM) += pv.o
>
> As this is kvm only...
>
>> obj-y += s390-ccw.o
>> obj-y += ap-device.o
>> obj-y += ap-bridge.o
>> diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c
>> index a077926f36..50501fcd27 100644
>> --- a/hw/s390x/ipl.c
>> +++ b/hw/s390x/ipl.c
>> @@ -33,6 +33,7 @@
>> #include "qemu/cutils.h"
>> #include "qemu/option.h"
>> #include "exec/exec-all.h"
>> +#include "pv.h"
>>
>> #define KERN_IMAGE_START 0x010000UL
>> #define LINUX_MAGIC_ADDR 0x010008UL
>> @@ -668,6 +669,38 @@ static void s390_ipl_prepare_qipl(S390CPU *cpu)
>> cpu_physical_memory_unmap(addr, len, 1, len);
>> }
>>
>> +int s390_ipl_prepare_pv_header(void)
>> +{
>> + int rc;
>> + IplParameterBlock *iplb = s390_ipl_get_iplb_secure();
>> + IPLBlockPV *ipib_pv = &iplb->pv;
>> + void *hdr = g_malloc(ipib_pv->pv_header_len);
>> +
>> + cpu_physical_memory_read(ipib_pv->pv_header_addr, hdr,
>> + ipib_pv->pv_header_len);
>> + rc = s390_pv_set_sec_parms((uint64_t)hdr,
>> + ipib_pv->pv_header_len);
>> + g_free(hdr);
>> + return rc;
>> +}
>> +
>> +int s390_ipl_pv_unpack(void)
>> +{
>> + int i, rc;
>> + IplParameterBlock *iplb = s390_ipl_get_iplb_secure();
>> + IPLBlockPV *ipib_pv = &iplb->pv;
>> +
>> + for (i = 0; i < ipib_pv->num_comp; i++) {
>> + rc = s390_pv_unpack(ipib_pv->components[i].addr,
>> + TARGET_PAGE_ALIGN(ipib_pv->components[i].size),
>> + ipib_pv->components[i].tweak_pref);
>
> ...you probably need a stub version of the pv functions as well, right?
Yes, I'm working on it
>
>> + if (rc) {
>> + return rc;
>> + }
>> + }
>> + return rc;
>> +}
>> +
>> void s390_ipl_prepare_cpu(S390CPU *cpu)
>> {
>> S390IPLState *ipl = get_ipl_device();
>
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next prev parent reply other threads:[~2019-11-21 11:36 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 [this message]
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
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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