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| author | David Gibson <david@gibson.dropbear.id.au> | 2020-12-04 12:51:51 +1100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2021-02-08 16:57:38 +1100 |
| commit | e0292d7c62673546c01d5c6b245735fdfef81840 (patch) | |
| tree | 299d7c5c221b67eede72de51c7c7ec6a83b90d08 /accel/kvm | |
| parent | 6e6a6ca7d9097d1aa68089379cdaa7553dad7a25 (diff) | |
| download | qemu-e0292d7c62673546c01d5c6b245735fdfef81840.zip qemu-e0292d7c62673546c01d5c6b245735fdfef81840.tar.gz qemu-e0292d7c62673546c01d5c6b245735fdfef81840.tar.bz2 | |
confidential guest support: Rework the "memory-encryption" property
Currently the "memory-encryption" property is only looked at once we
get to kvm_init(). Although protection of guest memory from the
hypervisor isn't something that could really ever work with TCG, it's
not conceptually tied to the KVM accelerator.
In addition, the way the string property is resolved to an object is
almost identical to how a QOM link property is handled.
So, create a new "confidential-guest-support" link property which sets
this QOM interface link directly in the machine. For compatibility we
keep the "memory-encryption" property, but now implemented in terms of
the new property.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'accel/kvm')
| -rw-r--r-- | accel/kvm/kvm-all.c | 5 | ||||
| -rw-r--r-- | accel/kvm/sev-stub.c | 5 |
2 files changed, 6 insertions, 4 deletions
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 3526e88..88a6b8c 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -2184,8 +2184,9 @@ static int kvm_init(MachineState *ms) * if memory encryption object is specified then initialize the memory * encryption context. */ - if (ms->memory_encryption) { - ret = sev_guest_init(ms->memory_encryption); + if (ms->cgs) { + /* FIXME handle mechanisms other than SEV */ + ret = sev_kvm_init(ms->cgs); if (ret < 0) { goto err; } diff --git a/accel/kvm/sev-stub.c b/accel/kvm/sev-stub.c index 5db9ab8..3d4787a 100644 --- a/accel/kvm/sev-stub.c +++ b/accel/kvm/sev-stub.c @@ -15,7 +15,8 @@ #include "qemu-common.h" #include "sysemu/sev.h" -int sev_guest_init(const char *id) +int sev_kvm_init(ConfidentialGuestSupport *cgs) { - return -1; + /* SEV can't be selected if it's not compiled */ + g_assert_not_reached(); } |