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target/i386/sev: Move qmp_sev_inject_launch_secret() to sev.c

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Move qmp_sev_inject_launch_secret() from monitor.c to sev.c
and make sev_inject_launch_secret() static. We don't need the
stub anymore, remove it.

Previously with binaries built without SEV, management layer
was getting an empty response:

  { "execute": "sev-inject-launch-secret",
    "arguments": { "packet-header": "mypkt", "secret": "mypass", "gpa": 4294959104 }
  }
  {
      "return": {
      }
  }

Now the response is explicit, mentioning the feature is disabled:

  { "execute": "sev-inject-launch-secret",
          "arguments": { "packet-header": "mypkt", "secret": "mypass", "gpa": 4294959104 }
  }
  {
      "error": {
          "class": "GenericError",
          "desc": "this feature or command is not currently supported"
      }
  }

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211007161716.453984-19-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2021-10-07 18:17:11 +02:00 • committed by Paolo Bonzini
parent 3208de1cd2
commit 11a6ed0e77
3 changed files with 34 additions and 34 deletions
Download patch file Download diff file Expand all files Collapse all files

31
target/i386/monitor.c
View file

@ -732,37 +732,6 @@ SevCapability *qmp_query_sev_capabilities(Error **errp)
return sev_get_capabilities(errp);
}
#define SEV_SECRET_GUID "4c2eb361-7d9b-4cc3-8081-127c90d3d294"
struct sev_secret_area {
uint32_t base;
uint32_t size;
};
void qmp_sev_inject_launch_secret(const char *packet_hdr,
const char *secret,
bool has_gpa, uint64_t gpa,
Error **errp)
{
if (!sev_enabled()) {
error_setg(errp, "SEV not enabled for guest");
return;
}
if (!has_gpa) {
uint8_t *data;
struct sev_secret_area *area;
if (!pc_system_ovmf_table_find(SEV_SECRET_GUID, &data, NULL)) {
error_setg(errp, "SEV: no secret area found in OVMF,"
" gpa must be specified.");
return;
}
area = (struct sev_secret_area *)data;
gpa = area->base;
}
sev_inject_launch_secret(packet_hdr, secret, gpa, errp);
}
SGXInfo *qmp_query_sgx(Error **errp)
{
return sgx_get_info(errp);

6
target/i386/sev-sysemu-stub.c
View file

@ -33,10 +33,10 @@ SevCapability *sev_get_capabilities(Error **errp)
return NULL;
}
int sev_inject_launch_secret(const char *hdr, const char *secret,
uint64_t gpa, Error **errp)
void qmp_sev_inject_launch_secret(const char *packet_header, const char *secret,
bool has_gpa, uint64_t gpa, Error **errp)
{
return 1;
error_setg(errp, "SEV is not available in this QEMU");
}
int sev_encrypt_flash(uint8_t *ptr, uint64_t len, Error **errp)

31
target/i386/sev.c
View file

@ -973,6 +973,37 @@ int sev_inject_launch_secret(const char *packet_hdr, const char *secret,
return 0;
}
#define SEV_SECRET_GUID "4c2eb361-7d9b-4cc3-8081-127c90d3d294"
struct sev_secret_area {
uint32_t base;
uint32_t size;
};
void qmp_sev_inject_launch_secret(const char *packet_hdr,
const char *secret,
bool has_gpa, uint64_t gpa,
Error **errp)
{
if (!sev_enabled()) {
error_setg(errp, "SEV not enabled for guest");
return;
}
if (!has_gpa) {
uint8_t *data;
struct sev_secret_area *area;
if (!pc_system_ovmf_table_find(SEV_SECRET_GUID, &data, NULL)) {
error_setg(errp, "SEV: no secret area found in OVMF,"
" gpa must be specified.");
return;
}
area = (struct sev_secret_area *)data;
gpa = area->base;
}
sev_inject_launch_secret(packet_hdr, secret, gpa, errp);
}
static int
sev_es_parse_reset_block(SevInfoBlock *info, uint32_t *addr)
{