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Re: [Qemu-devel] [PATCH v10 11/28] sev/i386: add command to initialize t
From: |
Laszlo Ersek |
Subject: |
Re: [Qemu-devel] [PATCH v10 11/28] sev/i386: add command to initialize the memory encryption context |
Date: |
Mon, 5 Mar 2018 14:37:57 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 |
Hi Brijesh,
I triggered an assertion failure here:
On 02/28/18 22:10, Brijesh Singh wrote:
> When memory encryption is enabled, KVM_SEV_INIT command is used to
> initialize the platform. The command loads the SEV related persistent
> data from non-volatile storage and initializes the platform context.
> This command should be first issued before invoking any other guest
> commands provided by the SEV firmware.
>
> Cc: Paolo Bonzini <address@hidden>
> Cc: Richard Henderson <address@hidden>
> Cc: Eduardo Habkost <address@hidden>
> Signed-off-by: Brijesh Singh <address@hidden>
> ---
> accel/kvm/kvm-all.c | 15 ++++
> include/sysemu/sev.h | 22 +++++
> stubs/Makefile.objs | 1 +
> stubs/sev.c | 21 +++++
> target/i386/Makefile.objs | 2 +-
> target/i386/monitor.c | 11 ++-
> target/i386/sev-stub.c | 41 +++++++++
> target/i386/sev.c | 222
> ++++++++++++++++++++++++++++++++++++++++++++++
> target/i386/sev_i386.h | 29 ++++++
> target/i386/trace-events | 3 +
> 10 files changed, 364 insertions(+), 3 deletions(-)
> create mode 100644 include/sysemu/sev.h
> create mode 100644 stubs/sev.c
> create mode 100644 target/i386/sev-stub.c
[...]
> @@ -1636,6 +1640,17 @@ static int kvm_init(MachineState *ms)
>
> kvm_state = s;
>
> + /*
> + * if memory encryption object is specified then initialize the memory
> + * encryption context.
> + */
> + if (ms->memory_encryption) {
> + kvm_state->memcrypt_handle = sev_guest_init(ms->memory_encryption);
> + if (!kvm_state->memcrypt_handle) {
> + goto err;
> + }
> + }
> +
You should set the "err" variable to a negative error code; otherwise
the assertion at the "err" label will trigger:
err:
assert(ret < 0);
Thanks
Laszlo
- Re: [Qemu-devel] [PATCH v10 11/28] sev/i386: add command to initialize the memory encryption context,
Laszlo Ersek <=