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sev/i386: finalize the SEV guest launch flow 

SEV launch flow requires us to issue LAUNCH_FINISH command before guest
is ready to run.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Brijesh Singh 2018-03-08 06:48:52 -06:00 committed by Paolo Bonzini
parent c6c89c976d
commit 5dd0df7e74
2 changed files with 30 additions and 0 deletions
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29
target/i386/sev.c
View File

@ -578,6 +578,34 @@ static Notifier sev_machine_done_notify = {
.notify = sev_launch_get_measure,
};
static void
sev_launch_finish(SEVState *s)
{
int ret, error;
trace_kvm_sev_launch_finish();
ret = sev_ioctl(sev_state->sev_fd, KVM_SEV_LAUNCH_FINISH, 0, &error);
if (ret) {
error_report("%s: LAUNCH_FINISH ret=%d fw_error=%d '%s'",
__func__, ret, error, fw_error_to_str(error));
exit(1);
}
sev_set_guest_state(SEV_STATE_RUNNING);
}
static void
sev_vm_state_change(void *opaque, int running, RunState state)
{
SEVState *s = opaque;
if (running) {
if (!sev_check_state(SEV_STATE_RUNNING)) {
sev_launch_finish(s);
}
}
}
void *
sev_guest_init(const char *id)
{
@ -656,6 +684,7 @@ sev_guest_init(const char *id)
ram_block_notifier_add(&sev_ram_notifier);
qemu_add_machine_init_done_notifier(&sev_machine_done_notify);
qemu_add_vm_change_state_handler(sev_vm_state_change, s);
return s;
err:

1
target/i386/trace-events
View File

@ -14,3 +14,4 @@ kvm_sev_change_state(const char *old, const char *new) "%s -> %s"
kvm_sev_launch_start(int policy, void *session, void *pdh) "policy 0x%x session %p pdh %p"
kvm_sev_launch_update_data(void *addr, uint64_t len) "addr %p len 0x%" PRIu64
kvm_sev_launch_measurement(const char *value) "data %s"
kvm_sev_launch_finish(void) ""