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[Qemu-devel] [PATCH v2 08/13] misc.json: add migrate-set-sev-info comman
From: |
Singh, Brijesh |
Subject: |
[Qemu-devel] [PATCH v2 08/13] misc.json: add migrate-set-sev-info command |
Date: |
Wed, 10 Jul 2019 20:23:06 +0000 |
The command can be used by the hypervisor to specify the target Platform
Diffie-Hellman key (PDH) and certificate chain before starting the SEV
guest migration. The values passed through the command will be used while
creating the outgoing encryption context.
Signed-off-by: Brijesh Singh <address@hidden>
---
qapi/misc-target.json | 18 ++++++++++++++++++
target/i386/monitor.c | 10 ++++++++++
target/i386/sev-stub.c | 5 +++++
target/i386/sev.c | 11 +++++++++++
target/i386/sev_i386.h | 9 ++++++++-
5 files changed, 52 insertions(+), 1 deletion(-)
diff --git a/qapi/misc-target.json b/qapi/misc-target.json
index a00fd821eb..938dcaea14 100644
--- a/qapi/misc-target.json
+++ b/qapi/misc-target.json
@@ -266,3 +266,21 @@
##
{ 'command': 'query-gic-capabilities', 'returns': ['GICCapability'],
'if': 'defined(TARGET_ARM)' }
+
+##
+# @migrate-set-sev-info:
+#
+# The command is used to provide the target host information used during the
+# SEV guest.
+#
+# @pdh the target host platform diffie-hellman key encoded in base64
+#
+# @plat-cert the target host platform certificate chain encoded in base64
+#
+# @amd-cert AMD certificate chain which include ASK and OCA encoded in base64
+#
+# Since 4.2
+#
+##
+{ 'command': 'migrate-set-sev-info',
+ 'data': { 'pdh': 'str', 'plat-cert': 'str', 'amd-cert' : 'str' }}
diff --git a/target/i386/monitor.c b/target/i386/monitor.c
index 1f3b532fc2..4a5f50fb45 100644
--- a/target/i386/monitor.c
+++ b/target/i386/monitor.c
@@ -736,3 +736,13 @@ SevCapability *qmp_query_sev_capabilities(Error **errp)
return data;
}
+
+void qmp_migrate_set_sev_info(const char *pdh, const char *plat_cert,
+ const char *amd_cert, Error **errp)
+{
+ if (sev_enabled()) {
+ sev_set_migrate_info(pdh, plat_cert, amd_cert);
+ } else {
+ error_setg(errp, "SEV is not enabled");
+ }
+}
diff --git a/target/i386/sev-stub.c b/target/i386/sev-stub.c
index e5ee13309c..173bfa6374 100644
--- a/target/i386/sev-stub.c
+++ b/target/i386/sev-stub.c
@@ -48,3 +48,8 @@ SevCapability *sev_get_capabilities(void)
{
return NULL;
}
+
+void sev_set_migrate_info(const char *pdh, const char *plat_cert,
+ const char *amd_cert)
+{
+}
diff --git a/target/i386/sev.c b/target/i386/sev.c
index 49baf8fef0..6c902d0be8 100644
--- a/target/i386/sev.c
+++ b/target/i386/sev.c
@@ -825,6 +825,17 @@ sev_encrypt_data(void *handle, uint8_t *ptr, uint64_t len)
return 0;
}
+void sev_set_migrate_info(const char *pdh, const char *plat_cert,
+ const char *amd_cert)
+{
+ SEVState *s = sev_state;
+
+ s->remote_pdh = g_base64_decode(pdh, &s->remote_pdh_len);
+ s->remote_plat_cert = g_base64_decode(plat_cert,
+ &s->remote_plat_cert_len);
+ s->amd_cert = g_base64_decode(amd_cert, &s->amd_cert_len);
+}
+
static void
sev_register_types(void)
{
diff --git a/target/i386/sev_i386.h b/target/i386/sev_i386.h
index 55313441ae..3f3449b346 100644
--- a/target/i386/sev_i386.h
+++ b/target/i386/sev_i386.h
@@ -39,7 +39,8 @@ extern uint32_t sev_get_cbit_position(void);
extern uint32_t sev_get_reduced_phys_bits(void);
extern char *sev_get_launch_measurement(void);
extern SevCapability *sev_get_capabilities(void);
-
+extern void sev_set_migrate_info(const char *pdh, const char *plat_cert,
+ const char *amd_cert);
typedef struct QSevGuestInfo QSevGuestInfo;
typedef struct QSevGuestInfoClass QSevGuestInfoClass;
@@ -81,6 +82,12 @@ struct SEVState {
int sev_fd;
SevState state;
gchar *measurement;
+ guchar *remote_pdh;
+ size_t remote_pdh_len;
+ guchar *remote_plat_cert;
+ size_t remote_plat_cert_len;
+ guchar *amd_cert;
+ size_t amd_cert_len;
};
typedef struct SEVState SEVState;
--
2.17.1
- [Qemu-devel] [PATCH v2 05/13] doc: update AMD SEV API spec web link, (continued)
- [Qemu-devel] [PATCH v2 05/13] doc: update AMD SEV API spec web link, Singh, Brijesh, 2019/07/10
- [Qemu-devel] [PATCH v2 06/13] doc: update AMD SEV to include Live migration flow, Singh, Brijesh, 2019/07/10
- [Qemu-devel] [PATCH v2 04/13] kvm: add support to sync the page encryption state bitmap, Singh, Brijesh, 2019/07/10
- [Qemu-devel] [PATCH v2 07/13] target/i386: sev: do not create launch context for an incoming guest, Singh, Brijesh, 2019/07/10
- [Qemu-devel] [PATCH v2 08/13] misc.json: add migrate-set-sev-info command,
Singh, Brijesh <=
- [Qemu-devel] [PATCH v2 09/13] target/i386: sev: add support to encrypt the outgoing page, Singh, Brijesh, 2019/07/10
[Qemu-devel] [PATCH v2 13/13] target/i386: sev: remove migration blocker, Singh, Brijesh, 2019/07/10
[Qemu-devel] [PATCH v2 10/13] target/i386: sev: add support to load incoming encrypted page, Singh, Brijesh, 2019/07/10