On 1/27/22 15:15, Steffen Eiden wrote:
Adds an invalid command test for attestation in the uv-host.
Signed-off-by: Steffen Eiden <seiden@xxxxxxxxxxxxx>
Reviewed-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
---
lib/s390x/asm/uv.h | 24 +++++++++++++++++++++++-
s390x/uv-host.c | 3 ++-
2 files changed, 25 insertions(+), 2 deletions(-)
diff --git a/lib/s390x/asm/uv.h b/lib/s390x/asm/uv.h
index 97c90e81..38c322bf 100644
--- a/lib/s390x/asm/uv.h
+++ b/lib/s390x/asm/uv.h
@@ -1,10 +1,11 @@
/*
* s390x Ultravisor related definitions
*
- * Copyright (c) 2020 IBM Corp
+ * Copyright (c) 2020, 2022 IBM Corp
I'm not sure when we actually need/want to update this.
*
* Authors:
* Janosch Frank <frankja@xxxxxxxxxxxxx>
+ * Steffen Eiden <seiden@xxxxxxxxxxxxx>
I usually add myself to this list once I made significant contributions
to the file (or if I create the file). If you have a look at the
kernel's kvm-s390.c you'll see that I'm not yet on the list of its authors.
But, as visible in other discussions we're currently having, I'm not
aware of a definite guideline for this. Looks like we should find an
agreement within IBM and write it down.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2.
@@ -47,6 +48,7 @@
#define UVC_CMD_UNPIN_PAGE_SHARED 0x0342
#define UVC_CMD_SET_SHARED_ACCESS 0x1000
#define UVC_CMD_REMOVE_SHARED_ACCESS 0x1001
+#define UVC_CMD_ATTESTATION 0x1020
/* Bits in installed uv calls */
enum uv_cmds_inst {
@@ -71,6 +73,7 @@ enum uv_cmds_inst {
BIT_UVC_CMD_UNSHARE_ALL = 20,
BIT_UVC_CMD_PIN_PAGE_SHARED = 21,
BIT_UVC_CMD_UNPIN_PAGE_SHARED = 22,
+ BIT_UVC_CMD_ATTESTATION = 28,
};
struct uv_cb_header {
@@ -178,6 +181,25 @@ struct uv_cb_cfs {
u64 paddr;
} __attribute__((packed)) __attribute__((aligned(8)));
+/* Retrieve Attestation Measurement */
+struct uv_cb_attest {
+ struct uv_cb_header header; /* 0x0000 */
+ u64 reserved08[2]; /* 0x0008 */
+ u64 arcb_addr; /* 0x0018 */
+ u64 continuation_token; /* 0x0020 */
+ u8 reserved28[6]; /* 0x0028 */
+ u16 user_data_length; /* 0x002e */
+ u8 user_data[256]; /* 0x0030 */
+ u32 reserved130[3]; /* 0x0130 */
+ u32 measurement_length; /* 0x013c */
+ u64 measurement_address; /* 0x0140 */
+ u8 config_uid[16]; /* 0x0148 */
+ u32 reserved158; /* 0x0158 */
+ u32 add_data_length; /* 0x015c */
+ u64 add_data_address; /* 0x0160 */
+ u64 reserved168[4]; /* 0x0168 */
+} __attribute__((packed)) __attribute__((aligned(8)));
+
/* Set Secure Config Parameter */
struct uv_cb_ssc {
struct uv_cb_header header;
diff --git a/s390x/uv-host.c b/s390x/uv-host.c
index 92a41069..0f8ab94a 100644
--- a/s390x/uv-host.c
+++ b/s390x/uv-host.c
@@ -2,7 +2,7 @@
/*
* Guest Ultravisor Call tests
*
- * Copyright (c) 2021 IBM Corp
+ * Copyright (c) 2021, 2022 IBM Corp
*
* Authors:
* Janosch Frank <frankja@xxxxxxxxxxxxx>
@@ -418,6 +418,7 @@ static struct cmd_list invalid_cmds[] = {
{ "bogus", 0x4242, sizeof(struct uv_cb_header), -1},
{ "share", UVC_CMD_SET_SHARED_ACCESS, sizeof(struct uv_cb_share), BIT_UVC_CMD_SET_SHARED_ACCESS },
{ "unshare", UVC_CMD_REMOVE_SHARED_ACCESS, sizeof(struct uv_cb_share), BIT_UVC_CMD_REMOVE_SHARED_ACCESS },
+ { "attest", UVC_CMD_ATTESTATION, sizeof(struct uv_cb_attest), BIT_UVC_CMD_ATTESTATION },
{ NULL, 0, 0 },
};
