From: David Gibson <david@gibson.dropbear.id.au> To: brijesh.singh@amd.com, pair@us.ibm.com, dgilbert@redhat.com, pasic@linux.ibm.com, qemu-devel@nongnu.org Cc: cohuck@redhat.com, Richard Henderson <richard.henderson@linaro.org>, Marcelo Tosatti <mtosatti@redhat.com>, David Hildenbrand <david@redhat.com>, borntraeger@de.ibm.com, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Paolo Bonzini <pbonzini@redhat.com>, mst@redhat.com, jun.nakajima@intel.com, thuth@redhat.com, pragyansri.pathi@intel.com, kvm@vger.kernel.org, Eduardo Habkost <ehabkost@redhat.com>, qemu-s390x@nongnu.org, qemu-ppc@nongnu.org, frankja@linux.ibm.com, Greg Kurz <groug@kaod.org>, mdroth@linux.vnet.ibm.com, David Gibson <david@gibson.dropbear.id.au>, berrange@redhat.com, andi.kleen@intel.com Subject: [PATCH v7 08/13] confidential guest support: Move SEV initialization into arch specific code Date: Thu, 14 Jan 2021 10:58:06 +1100 [thread overview] Message-ID: <20210113235811.1909610-9-david@gibson.dropbear.id.au> (raw) In-Reply-To: <20210113235811.1909610-1-david@gibson.dropbear.id.au> While we've abstracted some (potential) differences between mechanisms for securing guest memory, the initialization is still specific to SEV. Given that, move it into x86's kvm_arch_init() code, rather than the generic kvm_init() code. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> --- accel/kvm/kvm-all.c | 14 -------------- accel/kvm/sev-stub.c | 4 ++-- target/i386/kvm/kvm.c | 12 ++++++++++++ target/i386/sev.c | 7 ++++++- 4 files changed, 20 insertions(+), 17 deletions(-) diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index c5b0750fd0..adf27c1864 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -2177,20 +2177,6 @@ static int kvm_init(MachineState *ms) kvm_state = s; - /* - * if memory encryption object is specified then initialize the memory - * encryption context. - */ - if (ms->cgs) { - Error *local_err = NULL; - /* FIXME handle mechanisms other than SEV */ - ret = sev_kvm_init(ms->cgs, &local_err); - if (ret < 0) { - error_report_err(local_err); - goto err; - } - } - ret = kvm_arch_init(ms, s); if (ret < 0) { goto err; diff --git a/accel/kvm/sev-stub.c b/accel/kvm/sev-stub.c index 512e205f7f..9587d1b2a3 100644 --- a/accel/kvm/sev-stub.c +++ b/accel/kvm/sev-stub.c @@ -17,6 +17,6 @@ int sev_kvm_init(ConfidentialGuestSupport *cgs, Error **errp) { - /* SEV can't be selected if it's not compiled */ - g_assert_not_reached(); + /* If we get here, cgs must be some non-SEV thing */ + return 0; } diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index 6dc1ee052d..e8b9dc48a2 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -42,6 +42,7 @@ #include "hw/i386/intel_iommu.h" #include "hw/i386/x86-iommu.h" #include "hw/i386/e820_memory_layout.h" +#include "sysemu/sev.h" #include "hw/pci/pci.h" #include "hw/pci/msi.h" @@ -2135,6 +2136,17 @@ int kvm_arch_init(MachineState *ms, KVMState *s) uint64_t shadow_mem; int ret; struct utsname utsname; + Error *local_err = NULL; + + /* + * if memory encryption object is specified then initialize the + * memory encryption context (no-op otherwise) + */ + ret = sev_kvm_init(ms->cgs, &local_err); + if (ret < 0) { + error_report_err(local_err); + return ret; + } if (!kvm_check_extension(s, KVM_CAP_IRQ_ROUTING)) { error_report("kvm: KVM_CAP_IRQ_ROUTING not supported by KVM"); diff --git a/target/i386/sev.c b/target/i386/sev.c index 3d94635397..aa79cacabe 100644 --- a/target/i386/sev.c +++ b/target/i386/sev.c @@ -664,13 +664,18 @@ sev_vm_state_change(void *opaque, int running, RunState state) int sev_kvm_init(ConfidentialGuestSupport *cgs, Error **errp) { - SevGuestState *sev = SEV_GUEST(cgs); + SevGuestState *sev + = (SevGuestState *)object_dynamic_cast(OBJECT(cgs), TYPE_SEV_GUEST); char *devname; int ret, fw_error; uint32_t ebx; uint32_t host_cbitpos; struct sev_user_data_status status = {}; + if (!sev) { + return 0; + } + ret = ram_block_discard_disable(true); if (ret) { error_report("%s: cannot disable RAM discard", __func__); -- 2.29.2
WARNING: multiple messages have this Message-ID (diff)
From: David Gibson <david@gibson.dropbear.id.au> To: brijesh.singh@amd.com, pair@us.ibm.com, dgilbert@redhat.com, pasic@linux.ibm.com, qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org, thuth@redhat.com, Marcelo Tosatti <mtosatti@redhat.com>, berrange@redhat.com, jun.nakajima@intel.com, kvm@vger.kernel.org, David Hildenbrand <david@redhat.com>, cohuck@redhat.com, Richard Henderson <richard.henderson@linaro.org>, Greg Kurz <groug@kaod.org>, mdroth@linux.vnet.ibm.com, borntraeger@de.ibm.com, qemu-s390x@nongnu.org, frankja@linux.ibm.com, mst@redhat.com, pragyansri.pathi@intel.com, andi.kleen@intel.com, Paolo Bonzini <pbonzini@redhat.com>, David Gibson <david@gibson.dropbear.id.au>, Eduardo Habkost <ehabkost@redhat.com> Subject: [PATCH v7 08/13] confidential guest support: Move SEV initialization into arch specific code Date: Thu, 14 Jan 2021 10:58:06 +1100 [thread overview] Message-ID: <20210113235811.1909610-9-david@gibson.dropbear.id.au> (raw) In-Reply-To: <20210113235811.1909610-1-david@gibson.dropbear.id.au> While we've abstracted some (potential) differences between mechanisms for securing guest memory, the initialization is still specific to SEV. Given that, move it into x86's kvm_arch_init() code, rather than the generic kvm_init() code. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> --- accel/kvm/kvm-all.c | 14 -------------- accel/kvm/sev-stub.c | 4 ++-- target/i386/kvm/kvm.c | 12 ++++++++++++ target/i386/sev.c | 7 ++++++- 4 files changed, 20 insertions(+), 17 deletions(-) diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index c5b0750fd0..adf27c1864 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -2177,20 +2177,6 @@ static int kvm_init(MachineState *ms) kvm_state = s; - /* - * if memory encryption object is specified then initialize the memory - * encryption context. - */ - if (ms->cgs) { - Error *local_err = NULL; - /* FIXME handle mechanisms other than SEV */ - ret = sev_kvm_init(ms->cgs, &local_err); - if (ret < 0) { - error_report_err(local_err); - goto err; - } - } - ret = kvm_arch_init(ms, s); if (ret < 0) { goto err; diff --git a/accel/kvm/sev-stub.c b/accel/kvm/sev-stub.c index 512e205f7f..9587d1b2a3 100644 --- a/accel/kvm/sev-stub.c +++ b/accel/kvm/sev-stub.c @@ -17,6 +17,6 @@ int sev_kvm_init(ConfidentialGuestSupport *cgs, Error **errp) { - /* SEV can't be selected if it's not compiled */ - g_assert_not_reached(); + /* If we get here, cgs must be some non-SEV thing */ + return 0; } diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index 6dc1ee052d..e8b9dc48a2 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -42,6 +42,7 @@ #include "hw/i386/intel_iommu.h" #include "hw/i386/x86-iommu.h" #include "hw/i386/e820_memory_layout.h" +#include "sysemu/sev.h" #include "hw/pci/pci.h" #include "hw/pci/msi.h" @@ -2135,6 +2136,17 @@ int kvm_arch_init(MachineState *ms, KVMState *s) uint64_t shadow_mem; int ret; struct utsname utsname; + Error *local_err = NULL; + + /* + * if memory encryption object is specified then initialize the + * memory encryption context (no-op otherwise) + */ + ret = sev_kvm_init(ms->cgs, &local_err); + if (ret < 0) { + error_report_err(local_err); + return ret; + } if (!kvm_check_extension(s, KVM_CAP_IRQ_ROUTING)) { error_report("kvm: KVM_CAP_IRQ_ROUTING not supported by KVM"); diff --git a/target/i386/sev.c b/target/i386/sev.c index 3d94635397..aa79cacabe 100644 --- a/target/i386/sev.c +++ b/target/i386/sev.c @@ -664,13 +664,18 @@ sev_vm_state_change(void *opaque, int running, RunState state) int sev_kvm_init(ConfidentialGuestSupport *cgs, Error **errp) { - SevGuestState *sev = SEV_GUEST(cgs); + SevGuestState *sev + = (SevGuestState *)object_dynamic_cast(OBJECT(cgs), TYPE_SEV_GUEST); char *devname; int ret, fw_error; uint32_t ebx; uint32_t host_cbitpos; struct sev_user_data_status status = {}; + if (!sev) { + return 0; + } + ret = ram_block_discard_disable(true); if (ret) { error_report("%s: cannot disable RAM discard", __func__); -- 2.29.2
next prev parent reply other threads:[~2021-01-14 1:53 UTC|newest] Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-01-13 23:57 [PATCH v7 00/13] Generalize memory encryption models David Gibson 2021-01-13 23:57 ` David Gibson 2021-01-13 23:57 ` [PATCH v7 01/13] qom: Allow optional sugar props David Gibson 2021-01-13 23:57 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 02/13] confidential guest support: Introduce new confidential guest support class David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-14 9:34 ` Daniel P. Berrangé 2021-01-14 9:34 ` Daniel P. Berrangé 2021-01-14 10:42 ` David Gibson 2021-01-14 10:42 ` David Gibson 2021-01-18 18:51 ` Dr. David Alan Gilbert 2021-01-18 18:51 ` Dr. David Alan Gilbert 2021-01-21 1:06 ` David Gibson 2021-01-21 1:06 ` David Gibson 2021-01-21 9:08 ` Dr. David Alan Gilbert 2021-01-21 9:08 ` Dr. David Alan Gilbert 2021-01-29 2:32 ` David Gibson 2021-01-29 2:32 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 03/13] sev: Remove false abstraction of flash encryption David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-15 12:54 ` Cornelia Huck 2021-01-15 12:54 ` Cornelia Huck 2021-01-18 2:59 ` David Gibson 2021-01-18 2:59 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 04/13] confidential guest support: Move side effect out of machine_set_memory_encryption() David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-15 12:56 ` Cornelia Huck 2021-01-15 12:56 ` Cornelia Huck 2021-01-13 23:58 ` [PATCH v7 05/13] confidential guest support: Rework the "memory-encryption" property David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-15 13:06 ` Cornelia Huck 2021-01-15 13:06 ` Cornelia Huck 2021-01-13 23:58 ` [PATCH v7 06/13] sev: Add Error ** to sev_kvm_init() David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 07/13] confidential guest support: Introduce cgs "ready" flag David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-14 8:55 ` Greg Kurz 2021-01-14 8:55 ` Greg Kurz 2021-01-15 13:12 ` Cornelia Huck 2021-01-15 13:12 ` Cornelia Huck 2021-01-18 19:47 ` Dr. David Alan Gilbert 2021-01-18 19:47 ` Dr. David Alan Gilbert 2021-01-19 8:16 ` Cornelia Huck 2021-01-19 8:16 ` Cornelia Huck 2021-02-02 1:41 ` David Gibson 2021-02-02 1:41 ` David Gibson 2021-01-29 6:30 ` David Gibson 2021-01-13 23:58 ` David Gibson [this message] 2021-01-13 23:58 ` [PATCH v7 08/13] confidential guest support: Move SEV initialization into arch specific code David Gibson 2021-01-15 13:24 ` Cornelia Huck 2021-01-15 13:24 ` Cornelia Huck 2021-01-18 3:03 ` David Gibson 2021-01-18 3:03 ` David Gibson 2021-01-18 8:03 ` Cornelia Huck 2021-01-18 8:03 ` Cornelia Huck 2021-01-29 3:12 ` David Gibson 2021-01-29 3:12 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 09/13] confidential guest support: Update documentation David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-14 10:07 ` Greg Kurz 2021-01-14 10:07 ` Greg Kurz 2021-01-15 15:36 ` Cornelia Huck 2021-01-15 15:36 ` Cornelia Huck 2021-01-29 2:36 ` David Gibson 2021-01-29 2:36 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 10/13] spapr: Add PEF based confidential guest support David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-14 10:39 ` Greg Kurz 2021-01-29 6:23 ` David Gibson 2021-01-15 15:41 ` Cornelia Huck 2021-01-15 15:41 ` Cornelia Huck 2021-01-29 2:43 ` David Gibson 2021-01-29 2:43 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 11/13] spapr: PEF: prevent migration David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 12/13] confidential guest support: Alter virtio default properties for protected guests David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 13/13] s390: Recognize confidential-guest-support option David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-14 9:10 ` Christian Borntraeger 2021-01-14 9:10 ` Christian Borntraeger 2021-01-14 9:19 ` Christian Borntraeger 2021-01-14 9:19 ` Christian Borntraeger 2021-01-14 9:24 ` Christian Borntraeger 2021-01-14 9:24 ` Christian Borntraeger 2021-01-15 0:13 ` David Gibson 2021-01-15 0:13 ` David Gibson 2021-01-14 11:45 ` David Gibson 2021-01-14 11:45 ` David Gibson 2021-01-15 16:36 ` Cornelia Huck 2021-01-15 16:36 ` Cornelia Huck 2021-01-18 17:06 ` Christian Borntraeger 2021-01-18 17:06 ` Christian Borntraeger
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