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virtio,pc,pci: fixes,cleanups,features 

more CXL patches
 RSA support for crypto
 fixes, cleanups all over the place
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_upstream' of git://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging

virtio,pc,pci: fixes,cleanups,features

more CXL patches
RSA support for crypto
fixes, cleanups all over the place

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# -----BEGIN PGP SIGNATURE-----
#
# iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAmKrYLMPHG1zdEByZWRo
# YXQuY29tAAoJECgfDbjSjVRpwpwH/2IS+V7wS3q/XXPz1HndJLpUP/z+mkeu9W6+
# X1U9CJ+66Ag4eD5T/jzoN0JEjiTeET/3xM+PY5NYZCh6QTAmA7EfFZv99oNWpGd1
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# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 16 Jun 2022 09:56:19 AM PDT
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [undefined]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* tag 'for_upstream' of git://git.kernel.org/pub/scm/virt/kvm/mst/qemu:
  acpi/erst: fix fallthrough code upon validation failure
  vhost: also check queue state in the vhost_dev_set_log error routine
  crypto: Introduce RSA algorithm
  virtio-iommu: Add an assert check in translate routine
  virtio-iommu: Use recursive lock to avoid deadlock
  virtio-iommu: Add bypass mode support to assigned device
  virtio/vhost-user: Fix wrong vhost notifier GPtrArray size
  docs/cxl: Add switch documentation
  pci-bridge/cxl_downstream: Add a CXL switch downstream port
  pci-bridge/cxl_upstream: Add a CXL switch upstream port

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-06-16 11:25:01 -07:00
parent 213fda642d 8c97e4deec
commit a28498b1f9
18 changed files with 1343 additions and 158 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

276
backends/cryptodev-builtin.c
View File

@ -26,6 +26,7 @@
#include "qapi/error.h"
#include "standard-headers/linux/virtio_crypto.h"
#include "crypto/cipher.h"
#include "crypto/akcipher.h"
#include "qom/object.h"
@ -42,10 +43,11 @@ typedef struct CryptoDevBackendBuiltinSession {
QCryptoCipher *cipher;
uint8_t direction; /* encryption or decryption */
uint8_t type; /* cipher? hash? aead? */
QCryptoAkCipher *akcipher;
QTAILQ_ENTRY(CryptoDevBackendBuiltinSession) next;
} CryptoDevBackendBuiltinSession;
/* Max number of symmetric sessions */
/* Max number of symmetric/asymmetric sessions */
#define MAX_NUM_SESSIONS 256
#define CRYPTODEV_BUITLIN_MAX_AUTH_KEY_LEN 512
@ -80,15 +82,17 @@ static void cryptodev_builtin_init(
backend->conf.crypto_services =
1u << VIRTIO_CRYPTO_SERVICE_CIPHER |
1u << VIRTIO_CRYPTO_SERVICE_HASH |
1u << VIRTIO_CRYPTO_SERVICE_MAC;
1u << VIRTIO_CRYPTO_SERVICE_MAC |
1u << VIRTIO_CRYPTO_SERVICE_AKCIPHER;
backend->conf.cipher_algo_l = 1u << VIRTIO_CRYPTO_CIPHER_AES_CBC;
backend->conf.hash_algo = 1u << VIRTIO_CRYPTO_HASH_SHA1;
backend->conf.akcipher_algo = 1u << VIRTIO_CRYPTO_AKCIPHER_RSA;
/*
* Set the Maximum length of crypto request.
* Why this value? Just avoid to overflow when
* memory allocation for each crypto request.
*/
backend->conf.max_size = LONG_MAX - sizeof(CryptoDevBackendSymOpInfo);
backend->conf.max_size = LONG_MAX - sizeof(CryptoDevBackendOpInfo);
backend->conf.max_cipher_key_len = CRYPTODEV_BUITLIN_MAX_CIPHER_KEY_LEN;
backend->conf.max_auth_key_len = CRYPTODEV_BUITLIN_MAX_AUTH_KEY_LEN;
@ -148,6 +152,55 @@ err:
return -1;
}
static int cryptodev_builtin_get_rsa_hash_algo(
int virtio_rsa_hash, Error **errp)
{
switch (virtio_rsa_hash) {
case VIRTIO_CRYPTO_RSA_MD5:
return QCRYPTO_HASH_ALG_MD5;
case VIRTIO_CRYPTO_RSA_SHA1:
return QCRYPTO_HASH_ALG_SHA1;
case VIRTIO_CRYPTO_RSA_SHA256:
return QCRYPTO_HASH_ALG_SHA256;
case VIRTIO_CRYPTO_RSA_SHA512:
return QCRYPTO_HASH_ALG_SHA512;
default:
error_setg(errp, "Unsupported rsa hash algo: %d", virtio_rsa_hash);
return -1;
}
}
static int cryptodev_builtin_set_rsa_options(
int virtio_padding_algo,
int virtio_hash_algo,
QCryptoAkCipherOptionsRSA *opt,
Error **errp)
{
if (virtio_padding_algo == VIRTIO_CRYPTO_RSA_PKCS1_PADDING) {
int hash_alg;
hash_alg = cryptodev_builtin_get_rsa_hash_algo(virtio_hash_algo, errp);
if (hash_alg < 0) {
return -1;
}
opt->hash_alg = hash_alg;
opt->padding_alg = QCRYPTO_RSA_PADDING_ALG_PKCS1;
return 0;
}
if (virtio_padding_algo == VIRTIO_CRYPTO_RSA_RAW_PADDING) {
opt->padding_alg = QCRYPTO_RSA_PADDING_ALG_RAW;
return 0;
}
error_setg(errp, "Unsupported rsa padding algo: %d", virtio_padding_algo);
return -1;
}
static int cryptodev_builtin_create_cipher_session(
CryptoDevBackendBuiltin *builtin,
CryptoDevBackendSymSessionInfo *sess_info,
@ -240,26 +293,89 @@ static int cryptodev_builtin_create_cipher_session(
return index;
}
static int64_t cryptodev_builtin_sym_create_session(
static int cryptodev_builtin_create_akcipher_session(
CryptoDevBackendBuiltin *builtin,
CryptoDevBackendAsymSessionInfo *sess_info,
Error **errp)
{
CryptoDevBackendBuiltinSession *sess;
QCryptoAkCipher *akcipher;
int index;
QCryptoAkCipherKeyType type;
QCryptoAkCipherOptions opts;
switch (sess_info->algo) {
case VIRTIO_CRYPTO_AKCIPHER_RSA:
opts.alg = QCRYPTO_AKCIPHER_ALG_RSA;
if (cryptodev_builtin_set_rsa_options(sess_info->u.rsa.padding_algo,
sess_info->u.rsa.hash_algo, &opts.u.rsa, errp) != 0) {
return -1;
}
break;
/* TODO support DSA&ECDSA until qemu crypto framework support these */
default:
error_setg(errp, "Unsupported akcipher alg %u", sess_info->algo);
return -1;
}
switch (sess_info->keytype) {
case VIRTIO_CRYPTO_AKCIPHER_KEY_TYPE_PUBLIC:
type = QCRYPTO_AKCIPHER_KEY_TYPE_PUBLIC;
break;
case VIRTIO_CRYPTO_AKCIPHER_KEY_TYPE_PRIVATE:
type = QCRYPTO_AKCIPHER_KEY_TYPE_PRIVATE;
break;
default:
error_setg(errp, "Unsupported akcipher keytype %u", sess_info->keytype);
return -1;
}
index = cryptodev_builtin_get_unused_session_index(builtin);
if (index < 0) {
error_setg(errp, "Total number of sessions created exceeds %u",
MAX_NUM_SESSIONS);
return -1;
}
akcipher = qcrypto_akcipher_new(&opts, type, sess_info->key,
sess_info->keylen, errp);
if (!akcipher) {
return -1;
}
sess = g_new0(CryptoDevBackendBuiltinSession, 1);
sess->akcipher = akcipher;
builtin->sessions[index] = sess;
return index;
}
static int64_t cryptodev_builtin_create_session(
CryptoDevBackend *backend,
CryptoDevBackendSymSessionInfo *sess_info,
CryptoDevBackendSessionInfo *sess_info,
uint32_t queue_index, Error **errp)
{
CryptoDevBackendBuiltin *builtin =
CRYPTODEV_BACKEND_BUILTIN(backend);
int64_t session_id = -1;
int ret;
CryptoDevBackendSymSessionInfo *sym_sess_info;
CryptoDevBackendAsymSessionInfo *asym_sess_info;
switch (sess_info->op_code) {
case VIRTIO_CRYPTO_CIPHER_CREATE_SESSION:
ret = cryptodev_builtin_create_cipher_session(
builtin, sess_info, errp);
if (ret < 0) {
return ret;
} else {
session_id = ret;
}
break;
sym_sess_info = &sess_info->u.sym_sess_info;
return cryptodev_builtin_create_cipher_session(
builtin, sym_sess_info, errp);
case VIRTIO_CRYPTO_AKCIPHER_CREATE_SESSION:
asym_sess_info = &sess_info->u.asym_sess_info;
return cryptodev_builtin_create_akcipher_session(
builtin, asym_sess_info, errp);
case VIRTIO_CRYPTO_HASH_CREATE_SESSION:
case VIRTIO_CRYPTO_MAC_CREATE_SESSION:
default:
@ -268,50 +384,44 @@ static int64_t cryptodev_builtin_sym_create_session(
return -1;
}
return session_id;
return -1;
}
static int cryptodev_builtin_sym_close_session(
static int cryptodev_builtin_close_session(
CryptoDevBackend *backend,
uint64_t session_id,
uint32_t queue_index, Error **errp)
{
CryptoDevBackendBuiltin *builtin =
CRYPTODEV_BACKEND_BUILTIN(backend);
CryptoDevBackendBuiltinSession *session;
assert(session_id < MAX_NUM_SESSIONS && builtin->sessions[session_id]);
qcrypto_cipher_free(builtin->sessions[session_id]->cipher);
g_free(builtin->sessions[session_id]);
session = builtin->sessions[session_id];
if (session->cipher) {
qcrypto_cipher_free(session->cipher);
} else if (session->akcipher) {
qcrypto_akcipher_free(session->akcipher);
}
g_free(session);
builtin->sessions[session_id] = NULL;
return 0;
}
static int cryptodev_builtin_sym_operation(
CryptoDevBackend *backend,
CryptoDevBackendSymOpInfo *op_info,
uint32_t queue_index, Error **errp)
CryptoDevBackendBuiltinSession *sess,
CryptoDevBackendSymOpInfo *op_info, Error **errp)
{
CryptoDevBackendBuiltin *builtin =
CRYPTODEV_BACKEND_BUILTIN(backend);
CryptoDevBackendBuiltinSession *sess;
int ret;
if (op_info->session_id >= MAX_NUM_SESSIONS ||
builtin->sessions[op_info->session_id] == NULL) {
error_setg(errp, "Cannot find a valid session id: %" PRIu64 "",
op_info->session_id);
return -VIRTIO_CRYPTO_INVSESS;
}
if (op_info->op_type == VIRTIO_CRYPTO_SYM_OP_ALGORITHM_CHAINING) {
error_setg(errp,
"Algorithm chain is unsupported for cryptdoev-builtin");
return -VIRTIO_CRYPTO_NOTSUPP;
}
sess = builtin->sessions[op_info->session_id];
if (op_info->iv_len > 0) {
ret = qcrypto_cipher_setiv(sess->cipher, op_info->iv,
op_info->iv_len, errp);
@ -333,9 +443,99 @@ static int cryptodev_builtin_sym_operation(
return -VIRTIO_CRYPTO_ERR;
}
}
return VIRTIO_CRYPTO_OK;
}
static int cryptodev_builtin_asym_operation(
CryptoDevBackendBuiltinSession *sess, uint32_t op_code,
CryptoDevBackendAsymOpInfo *op_info, Error **errp)
{
int ret;
switch (op_code) {
case VIRTIO_CRYPTO_AKCIPHER_ENCRYPT:
ret = qcrypto_akcipher_encrypt(sess->akcipher,
op_info->src, op_info->src_len,
op_info->dst, op_info->dst_len, errp);
break;
case VIRTIO_CRYPTO_AKCIPHER_DECRYPT:
ret = qcrypto_akcipher_decrypt(sess->akcipher,
op_info->src, op_info->src_len,
op_info->dst, op_info->dst_len, errp);
break;
case VIRTIO_CRYPTO_AKCIPHER_SIGN:
ret = qcrypto_akcipher_sign(sess->akcipher,
op_info->src, op_info->src_len,
op_info->dst, op_info->dst_len, errp);
break;
case VIRTIO_CRYPTO_AKCIPHER_VERIFY:
ret = qcrypto_akcipher_verify(sess->akcipher,
op_info->src, op_info->src_len,
op_info->dst, op_info->dst_len, errp);
break;
default:
return -VIRTIO_CRYPTO_ERR;
}
if (ret < 0) {
if (op_code == VIRTIO_CRYPTO_AKCIPHER_VERIFY) {
return -VIRTIO_CRYPTO_KEY_REJECTED;
}
return -VIRTIO_CRYPTO_ERR;
}
/* Buffer is too short, typically the driver should handle this case */
if (unlikely(ret > op_info->dst_len)) {
if (errp && !*errp) {
error_setg(errp, "dst buffer too short");
}
return -VIRTIO_CRYPTO_ERR;
}
op_info->dst_len = ret;
return VIRTIO_CRYPTO_OK;
}
static int cryptodev_builtin_operation(
CryptoDevBackend *backend,
CryptoDevBackendOpInfo *op_info,
uint32_t queue_index, Error **errp)
{
CryptoDevBackendBuiltin *builtin =
CRYPTODEV_BACKEND_BUILTIN(backend);
CryptoDevBackendBuiltinSession *sess;
CryptoDevBackendSymOpInfo *sym_op_info;
CryptoDevBackendAsymOpInfo *asym_op_info;
enum CryptoDevBackendAlgType algtype = op_info->algtype;
int ret = -VIRTIO_CRYPTO_ERR;
if (op_info->session_id >= MAX_NUM_SESSIONS ||
builtin->sessions[op_info->session_id] == NULL) {
error_setg(errp, "Cannot find a valid session id: %" PRIu64 "",
op_info->session_id);
return -VIRTIO_CRYPTO_INVSESS;
}
sess = builtin->sessions[op_info->session_id];
if (algtype == CRYPTODEV_BACKEND_ALG_SYM) {
sym_op_info = op_info->u.sym_op_info;
ret = cryptodev_builtin_sym_operation(sess, sym_op_info, errp);
} else if (algtype == CRYPTODEV_BACKEND_ALG_ASYM) {
asym_op_info = op_info->u.asym_op_info;
ret = cryptodev_builtin_asym_operation(sess, op_info->op_code,
asym_op_info, errp);
}
return ret;
}
static void cryptodev_builtin_cleanup(
CryptoDevBackend *backend,
Error **errp)
@ -348,7 +548,7 @@ static void cryptodev_builtin_cleanup(
for (i = 0; i < MAX_NUM_SESSIONS; i++) {
if (builtin->sessions[i] != NULL) {
cryptodev_builtin_sym_close_session(backend, i, 0, &error_abort);
cryptodev_builtin_close_session(backend, i, 0, &error_abort);
}
}
@ -370,9 +570,9 @@ cryptodev_builtin_class_init(ObjectClass *oc, void *data)
bc->init = cryptodev_builtin_init;
bc->cleanup = cryptodev_builtin_cleanup;
bc->create_session = cryptodev_builtin_sym_create_session;
bc->close_session = cryptodev_builtin_sym_close_session;
bc->do_sym_op = cryptodev_builtin_sym_operation;
bc->create_session = cryptodev_builtin_create_session;
bc->close_session = cryptodev_builtin_close_session;
bc->do_op = cryptodev_builtin_operation;
}
static const TypeInfo cryptodev_builtin_info = {

34
backends/cryptodev-vhost-user.c
View File

@ -259,7 +259,33 @@ static int64_t cryptodev_vhost_user_sym_create_session(
return -1;
}
static int cryptodev_vhost_user_sym_close_session(
static int64_t cryptodev_vhost_user_create_session(
CryptoDevBackend *backend,
CryptoDevBackendSessionInfo *sess_info,
uint32_t queue_index, Error **errp)
{
uint32_t op_code = sess_info->op_code;
CryptoDevBackendSymSessionInfo *sym_sess_info;
switch (op_code) {
case VIRTIO_CRYPTO_CIPHER_CREATE_SESSION:
case VIRTIO_CRYPTO_HASH_CREATE_SESSION:
case VIRTIO_CRYPTO_MAC_CREATE_SESSION:
case VIRTIO_CRYPTO_AEAD_CREATE_SESSION:
sym_sess_info = &sess_info->u.sym_sess_info;
return cryptodev_vhost_user_sym_create_session(backend, sym_sess_info,
queue_index, errp);
default:
error_setg(errp, "Unsupported opcode :%" PRIu32 "",
sess_info->op_code);
return -1;
}
return -1;
}
static int cryptodev_vhost_user_close_session(
CryptoDevBackend *backend,
uint64_t session_id,
uint32_t queue_index, Error **errp)
@ -351,9 +377,9 @@ cryptodev_vhost_user_class_init(ObjectClass *oc, void *data)
bc->init = cryptodev_vhost_user_init;
bc->cleanup = cryptodev_vhost_user_cleanup;
bc->create_session = cryptodev_vhost_user_sym_create_session;
bc->close_session = cryptodev_vhost_user_sym_close_session;
bc->do_sym_op = NULL;
bc->create_session = cryptodev_vhost_user_create_session;
bc->close_session = cryptodev_vhost_user_close_session;
bc->do_op = NULL;
object_class_property_add_str(oc, "chardev",
cryptodev_vhost_user_get_chardev,

32
backends/cryptodev.c
View File

@ -72,9 +72,9 @@ void cryptodev_backend_cleanup(
}
}
int64_t cryptodev_backend_sym_create_session(
int64_t cryptodev_backend_create_session(
CryptoDevBackend *backend,
CryptoDevBackendSymSessionInfo *sess_info,
CryptoDevBackendSessionInfo *sess_info,
uint32_t queue_index, Error **errp)
{
CryptoDevBackendClass *bc =
@ -87,7 +87,7 @@ int64_t cryptodev_backend_sym_create_session(
return -1;
}
int cryptodev_backend_sym_close_session(
int cryptodev_backend_close_session(
CryptoDevBackend *backend,
uint64_t session_id,
uint32_t queue_index, Error **errp)
@ -102,16 +102,16 @@ int cryptodev_backend_sym_close_session(
return -1;
}
static int cryptodev_backend_sym_operation(
static int cryptodev_backend_operation(
CryptoDevBackend *backend,
CryptoDevBackendSymOpInfo *op_info,
CryptoDevBackendOpInfo *op_info,
uint32_t queue_index, Error **errp)
{
CryptoDevBackendClass *bc =
CRYPTODEV_BACKEND_GET_CLASS(backend);
if (bc->do_sym_op) {
return bc->do_sym_op(backend, op_info, queue_index, errp);
if (bc->do_op) {
return bc->do_op(backend, op_info, queue_index, errp);
}
return -VIRTIO_CRYPTO_ERR;
@ -123,20 +123,18 @@ int cryptodev_backend_crypto_operation(
uint32_t queue_index, Error **errp)
{
VirtIOCryptoReq *req = opaque;
CryptoDevBackendOpInfo *op_info = &req->op_info;
enum CryptoDevBackendAlgType algtype = req->flags;
if (req->flags == CRYPTODEV_BACKEND_ALG_SYM) {
CryptoDevBackendSymOpInfo *op_info;
op_info = req->u.sym_op_info;
return cryptodev_backend_sym_operation(backend,
op_info, queue_index, errp);
} else {
if ((algtype != CRYPTODEV_BACKEND_ALG_SYM)
&& (algtype != CRYPTODEV_BACKEND_ALG_ASYM)) {
error_setg(errp, "Unsupported cryptodev alg type: %" PRIu32 "",
req->flags);
return -VIRTIO_CRYPTO_NOTSUPP;
algtype);
return -VIRTIO_CRYPTO_NOTSUPP;
}
return -VIRTIO_CRYPTO_ERR;
return cryptodev_backend_operation(backend, op_info, queue_index, errp);
}
static void

88
docs/system/devices/cxl.rst
View File

@ -118,8 +118,6 @@ and associated component register access via PCI bars.
CXL Switch
~~~~~~~~~~
Not yet implemented in QEMU.
Here we consider a simple CXL switch with only a single
virtual hierarchy. Whilst more complex devices exist, their
visibility to a particular host is generally the same as for
@ -137,6 +135,10 @@ BARs. The Upstream Port has the configuration interfaces for
the HDM decoders which route incoming memory accesses to the
appropriate downstream port.
A CXL switch is created in a similar fashion to PCI switches
by creating an upstream port (cxl-upstream) and a number of
downstream ports on the internal switch bus (cxl-downstream).
CXL Memory Devices - Type 3
~~~~~~~~~~~~~~~~~~~~~~~~~~~
CXL type 3 devices use a PCI class code and are intended to be supported
@ -240,6 +242,62 @@ Notes:
they will take the Host Physical Addresses of accesses and map
them to their own local Device Physical Address Space (DPA).
Example topology involving a switch::
|<------------------SYSTEM PHYSICAL ADDRESS MAP (1)----------------->|
| __________ __________________________________ __________ |
| | | | | | | |
| | CFMW 0 | | CXL Fixed Memory Window 1 | | CFMW 1 | |
| | HB0 only | | Configured to interleave memory | | HB1 only | |
| | | | memory accesses across HB0/HB1 | | | |
| |____x_____| |__________________________________| |__________| |
| | | |
| | | |
| | |
Interleave Decoder | | |
Matches this HB | | |
\_____________| |_____________/
__________|__________ _____|_______________
| | | |
| CXL HB 0 | | CXL HB 1 |
| HB IntLv Decoders | | HB IntLv Decoders |
| PCI/CXL Root Bus 0c | | PCI/CXL Root Bus 0d |
| | | |
|___x_________________| |_____________________|
| | | |
|
A HB 0 HDM Decoder
matches this Port
___________|___
| Root Port 0 |
| Appears in |
| PCI topology |
| As 0c:00.0 |
|___________x___|
|
|
\_____________________
|
|
---------------------------------------------------
| Switch 0 USP as PCI 0d:00.0 |
| USP has HDM decoder which direct traffic to |
| appropiate downstream port |
| Switch BUS appears as 0e |
|x__________________________________________________|
| | | |
| | | |
_____|_________ ______|______ ______|_____ ______|_______
(4)| x | | | | | | |
| CXL Type3 0 | | CXL Type3 1 | | CXL type3 2| | CLX Type 3 3 |
| | | | | | | |
| PMEM0(Vol LSA)| | PMEM1 (...) | | PMEM2 (...)| | PMEM3 (...) |
| Decoder to go | | | | | | |
| from host PA | | PCI 10:00.0 | | PCI 11:00.0| | PCI 12:00.0 |
| to device PA | | | | | | |
| PCI as 0f:00.0| | | | | | |
|_______________| |_____________| |____________| |______________|
Example command lines
---------------------
A very simple setup with just one directly attached CXL Type 3 device::
@ -279,6 +337,32 @@ the CXL Type3 device directly attached (no switches).::
-device cxl-type3,bus=root_port16,memdev=cxl-mem4,lsa=cxl-lsa4,id=cxl-pmem3 \
-M cxl-fmw.0.targets.0=cxl.1,cxl-fmw.0.targets.1=cxl.2,cxl-fmw.0.size=4G,cxl-fmw.0.interleave-granularity=8k
An example of 4 devices below a switch suitable for 1, 2 or 4 way interleave::
qemu-system-aarch64 -M virt,gic-version=3,cxl=on -m 4g,maxmem=8G,slots=8 -cpu max \
...
-object memory-backend-file,id=cxl-mem0,share=on,mem-path=/tmp/cxltest.raw,size=256M \
-object memory-backend-file,id=cxl-mem1,share=on,mem-path=/tmp/cxltest1.raw,size=256M \
-object memory-backend-file,id=cxl-mem2,share=on,mem-path=/tmp/cxltest2.raw,size=256M \
-object memory-backend-file,id=cxl-mem3,share=on,mem-path=/tmp/cxltest3.raw,size=256M \
-object memory-backend-file,id=cxl-lsa0,share=on,mem-path=/tmp/lsa0.raw,size=256M \
-object memory-backend-file,id=cxl-lsa1,share=on,mem-path=/tmp/lsa1.raw,size=256M \
-object memory-backend-file,id=cxl-lsa2,share=on,mem-path=/tmp/lsa2.raw,size=256M \
-object memory-backend-file,id=cxl-lsa3,share=on,mem-path=/tmp/lsa3.raw,size=256M \
-device pxb-cxl,bus_nr=12,bus=pcie.0,id=cxl.1 \
-device cxl-rp,port=0,bus=cxl.1,id=root_port0,chassis=0,slot=0 \
-device cxl-rp,port=1,bus=cxl.1,id=root_port1,chassis=0,slot=1 \
-device cxl-upstream,bus=root_port0,id=us0 \
-device cxl-downstream,port=0,bus=us0,id=swport0,chassis=0,slot=4 \
-device cxl-type3,bus=swport0,memdev=cxl-mem0,lsa=cxl-lsa0,id=cxl-pmem0,size=256M \
-device cxl-downstream,port=1,bus=us0,id=swport1,chassis=0,slot=5 \
-device cxl-type3,bus=swport1,memdev=cxl-mem1,lsa=cxl-lsa1,id=cxl-pmem1,size=256M \
-device cxl-downstream,port=2,bus=us0,id=swport2,chassis=0,slot=6 \
-device cxl-type3,bus=swport2,memdev=cxl-mem2,lsa=cxl-lsa2,id=cxl-pmem2,size=256M \
-device cxl-downstream,port=3,bus=us0,id=swport3,chassis=0,slot=7 \
-device cxl-type3,bus=swport3,memdev=cxl-mem3,lsa=cxl-lsa3,id=cxl-pmem3,size=256M \
-M cxl-fmw.0.targets.0=cxl.1,cxl-fmw.0.size=4G,cxl-fmw.0.interleave-granularity=4k
Kernel Configuration Options
----------------------------

3
hw/acpi/erst.c
View File

@ -440,6 +440,7 @@ static void check_erst_backend_storage(ERSTDeviceState *s, Error **errp)
(record_size >= 4096) /* PAGE_SIZE */
)) {
error_setg(errp, "ERST record_size %u is invalid", record_size);
return;
}
/* Validity check header */
@ -450,6 +451,7 @@ static void check_erst_backend_storage(ERSTDeviceState *s, Error **errp)
(le16_to_cpu(header->reserved) == 0)
)) {
error_setg(errp, "ERST backend storage header is invalid");
return;
}
/* Check storage_size against record_size */
@ -457,6 +459,7 @@ static void check_erst_backend_storage(ERSTDeviceState *s, Error **errp)
(record_size > s->storage_size)) {
error_setg(errp, "ACPI ERST requires storage size be multiple of "
"record size (%uKiB)", record_size);
return;
}
/* Compute offset of first and last record storage slot */

43
hw/cxl/cxl-host.c
View File

@ -129,8 +129,9 @@ static bool cxl_hdm_find_target(uint32_t *cache_mem, hwaddr addr,
static PCIDevice *cxl_cfmws_find_device(CXLFixedWindow *fw, hwaddr addr)
{
CXLComponentState *hb_cstate;
CXLComponentState *hb_cstate, *usp_cstate;
PCIHostState *hb;
CXLUpstreamPort *usp;
int rb_index;
uint32_t *cache_mem;
uint8_t target;
@ -164,8 +165,46 @@ static PCIDevice *cxl_cfmws_find_device(CXLFixedWindow *fw, hwaddr addr)
}
d = pci_bridge_get_sec_bus(PCI_BRIDGE(rp))->devices[0];
if (!d) {
return NULL;
}
if (!d || !object_dynamic_cast(OBJECT(d), TYPE_CXL_TYPE3)) {
if (object_dynamic_cast(OBJECT(d), TYPE_CXL_TYPE3)) {
return d;
}
/*
* Could also be a switch. Note only one level of switching currently
* supported.
*/
if (!object_dynamic_cast(OBJECT(d), TYPE_CXL_USP)) {
return NULL;
}
usp = CXL_USP(d);
usp_cstate = cxl_usp_to_cstate(usp);
if (!usp_cstate) {
return NULL;
}
cache_mem = usp_cstate->crb.cache_mem_registers;
target_found = cxl_hdm_find_target(cache_mem, addr, &target);
if (!target_found) {
return NULL;
}
d = pcie_find_port_by_pn(&PCI_BRIDGE(d)->sec_bus, target);
if (!d) {
return NULL;
}
d = pci_bridge_get_sec_bus(PCI_BRIDGE(d))->devices[0];
if (!d) {
return NULL;
}
if (!object_dynamic_cast(OBJECT(d), TYPE_CXL_TYPE3)) {
return NULL;
}

249
hw/pci-bridge/cxl_downstream.c Normal file
View File

@ -0,0 +1,249 @@
/*
* Emulated CXL Switch Downstream Port
*
* Copyright (c) 2022 Huawei Technologies.
*
* Based on xio3130_downstream.c
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "qemu/log.h"
#include "hw/pci/msi.h"
#include "hw/pci/pcie.h"
#include "hw/pci/pcie_port.h"
#include "qapi/error.h"
typedef struct CXLDownStreamPort {
/*< private >*/
PCIESlot parent_obj;
/*< public >*/
CXLComponentState cxl_cstate;
} CXLDownstreamPort;
#define TYPE_CXL_DSP "cxl-downstream"
DECLARE_INSTANCE_CHECKER(CXLDownstreamPort, CXL_DSP, TYPE_CXL_DSP)
#define CXL_DOWNSTREAM_PORT_MSI_OFFSET 0x70
#define CXL_DOWNSTREAM_PORT_MSI_NR_VECTOR 1
#define CXL_DOWNSTREAM_PORT_EXP_OFFSET 0x90
#define CXL_DOWNSTREAM_PORT_AER_OFFSET 0x100
#define CXL_DOWNSTREAM_PORT_DVSEC_OFFSET \
(CXL_DOWNSTREAM_PORT_AER_OFFSET + PCI_ERR_SIZEOF)
static void latch_registers(CXLDownstreamPort *dsp)
{
uint32_t *reg_state = dsp->cxl_cstate.crb.cache_mem_registers;
uint32_t *write_msk = dsp->cxl_cstate.crb.cache_mem_regs_write_mask;
cxl_component_register_init_common(reg_state, write_msk,
CXL2_DOWNSTREAM_PORT);
}
/* TODO: Look at sharing this code acorss all CXL port types */
static void cxl_dsp_dvsec_write_config(PCIDevice *dev, uint32_t addr,
uint32_t val, int len)
{
CXLDownstreamPort *dsp = CXL_DSP(dev);
CXLComponentState *cxl_cstate = &dsp->cxl_cstate;
if (range_contains(&cxl_cstate->dvsecs[EXTENSIONS_PORT_DVSEC], addr)) {
uint8_t *reg = &dev->config[addr];
addr -= cxl_cstate->dvsecs[EXTENSIONS_PORT_DVSEC].lob;
if (addr == PORT_CONTROL_OFFSET) {
if (pci_get_word(reg) & PORT_CONTROL_UNMASK_SBR) {
/* unmask SBR */
qemu_log_mask(LOG_UNIMP, "SBR mask control is not supported\n");
}
if (pci_get_word(reg) & PORT_CONTROL_ALT_MEMID_EN) {
/* Alt Memory & ID Space Enable */
qemu_log_mask(LOG_UNIMP,
"Alt Memory & ID space is not supported\n");
}
}
}
}
static void cxl_dsp_config_write(PCIDevice *d, uint32_t address,
uint32_t val, int len)
{
uint16_t slt_ctl, slt_sta;
pcie_cap_slot_get(d, &slt_ctl, &slt_sta);
pci_bridge_write_config(d, address, val, len);
pcie_cap_flr_write_config(d, address, val, len);
pcie_cap_slot_write_config(d, slt_ctl, slt_sta, address, val, len);
pcie_aer_write_config(d, address, val, len);
cxl_dsp_dvsec_write_config(d, address, val, len);
}
static void cxl_dsp_reset(DeviceState *qdev)
{
PCIDevice *d = PCI_DEVICE(qdev);
CXLDownstreamPort *dsp = CXL_DSP(qdev);
pcie_cap_deverr_reset(d);
pcie_cap_slot_reset(d);
pcie_cap_arifwd_reset(d);
pci_bridge_reset(qdev);
latch_registers(dsp);
}
static void build_dvsecs(CXLComponentState *cxl)
{
uint8_t *dvsec;
dvsec = (uint8_t *)&(CXLDVSECPortExtensions){ 0 };
cxl_component_create_dvsec(cxl, CXL2_DOWNSTREAM_PORT,
EXTENSIONS_PORT_DVSEC_LENGTH,
EXTENSIONS_PORT_DVSEC,
EXTENSIONS_PORT_DVSEC_REVID, dvsec);
dvsec = (uint8_t *)&(CXLDVSECPortFlexBus){
.cap = 0x27, /* Cache, IO, Mem, non-MLD */
.ctrl = 0x02, /* IO always enabled */
.status = 0x26, /* same */
.rcvd_mod_ts_data_phase1 = 0xef, /* WTF? */
};
cxl_component_create_dvsec(cxl, CXL2_DOWNSTREAM_PORT,
PCIE_FLEXBUS_PORT_DVSEC_LENGTH_2_0,
PCIE_FLEXBUS_PORT_DVSEC,
PCIE_FLEXBUS_PORT_DVSEC_REVID_2_0, dvsec);
dvsec = (uint8_t *)&(CXLDVSECPortGPF){
.rsvd = 0,
.phase1_ctrl = 1, /* 1μs timeout */
.phase2_ctrl = 1, /* 1μs timeout */
};
cxl_component_create_dvsec(cxl, CXL2_DOWNSTREAM_PORT,
GPF_PORT_DVSEC_LENGTH, GPF_PORT_DVSEC,
GPF_PORT_DVSEC_REVID, dvsec);
dvsec = (uint8_t *)&(CXLDVSECRegisterLocator){
.rsvd = 0,
.reg0_base_lo = RBI_COMPONENT_REG | CXL_COMPONENT_REG_BAR_IDX,
.reg0_base_hi = 0,
};
cxl_component_create_dvsec(cxl, CXL2_DOWNSTREAM_PORT,
REG_LOC_DVSEC_LENGTH, REG_LOC_DVSEC,
REG_LOC_DVSEC_REVID, dvsec);
}
static void cxl_dsp_realize(PCIDevice *d, Error **errp)
{
PCIEPort *p = PCIE_PORT(d);
PCIESlot *s = PCIE_SLOT(d);
CXLDownstreamPort *dsp = CXL_DSP(d);
CXLComponentState *cxl_cstate = &dsp->cxl_cstate;
ComponentRegisters *cregs = &cxl_cstate->crb;
MemoryRegion *component_bar = &cregs->component_registers;
int rc;
pci_bridge_initfn(d, TYPE_PCIE_BUS);
pcie_port_init_reg(d);
rc = msi_init(d, CXL_DOWNSTREAM_PORT_MSI_OFFSET,
CXL_DOWNSTREAM_PORT_MSI_NR_VECTOR,
true, true, errp);
if (rc) {
assert(rc == -ENOTSUP);
goto err_bridge;
}
rc = pcie_cap_init(d, CXL_DOWNSTREAM_PORT_EXP_OFFSET,
PCI_EXP_TYPE_DOWNSTREAM, p->port,
errp);
if (rc < 0) {
goto err_msi;
}
pcie_cap_flr_init(d);
pcie_cap_deverr_init(d);
pcie_cap_slot_init(d, s);
pcie_cap_arifwd_init(d);
pcie_chassis_create(s->chassis);
rc = pcie_chassis_add_slot(s);
if (rc < 0) {
error_setg(errp, "Can't add chassis slot, error %d", rc);
goto err_pcie_cap;
}
rc = pcie_aer_init(d, PCI_ERR_VER, CXL_DOWNSTREAM_PORT_AER_OFFSET,
PCI_ERR_SIZEOF, errp);
if (rc < 0) {
goto err_chassis;
}
cxl_cstate->dvsec_offset = CXL_DOWNSTREAM_PORT_DVSEC_OFFSET;
cxl_cstate->pdev = d;
build_dvsecs(cxl_cstate);
cxl_component_register_block_init(OBJECT(d), cxl_cstate, TYPE_CXL_DSP);
pci_register_bar(d, CXL_COMPONENT_REG_BAR_IDX,
PCI_BASE_ADDRESS_SPACE_MEMORY |
PCI_BASE_ADDRESS_MEM_TYPE_64,
component_bar);
return;
err_chassis:
pcie_chassis_del_slot(s);
err_pcie_cap:
pcie_cap_exit(d);
err_msi:
msi_uninit(d);
err_bridge:
pci_bridge_exitfn(d);
}
static void cxl_dsp_exitfn(PCIDevice *d)
{
PCIESlot *s = PCIE_SLOT(d);
pcie_aer_exit(d);
pcie_chassis_del_slot(s);
pcie_cap_exit(d);
msi_uninit(d);
pci_bridge_exitfn(d);
}
static void cxl_dsp_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
PCIDeviceClass *k = PCI_DEVICE_CLASS(oc);
k->is_bridge = true;
k->config_write = cxl_dsp_config_write;
k->realize = cxl_dsp_realize;
k->exit = cxl_dsp_exitfn;
k->vendor_id = 0x19e5; /* Huawei */
k->device_id = 0xa129; /* Emulated CXL Switch Downstream Port */
k->revision = 0;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
dc->desc = "CXL Switch Downstream Port";
dc->reset = cxl_dsp_reset;
}
static const TypeInfo cxl_dsp_info = {
.name = TYPE_CXL_DSP,
.instance_size = sizeof(CXLDownstreamPort),
.parent = TYPE_PCIE_SLOT,
.class_init = cxl_dsp_class_init,
.interfaces = (InterfaceInfo[]) {
{ INTERFACE_PCIE_DEVICE },
{ INTERFACE_CXL_DEVICE },
{ }
},
};
static void cxl_dsp_register_type(void)
{
type_register_static(&cxl_dsp_info);
}
type_init(cxl_dsp_register_type);

216
hw/pci-bridge/cxl_upstream.c Normal file
View File

@ -0,0 +1,216 @@
/*
* Emulated CXL Switch Upstream Port
*
* Copyright (c) 2022 Huawei Technologies.
*
* Based on xio3130_upstream.c
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "qemu/log.h"
#include "hw/pci/msi.h"
#include "hw/pci/pcie.h"
#include "hw/pci/pcie_port.h"
#define CXL_UPSTREAM_PORT_MSI_NR_VECTOR 1
#define CXL_UPSTREAM_PORT_MSI_OFFSET 0x70
#define CXL_UPSTREAM_PORT_PCIE_CAP_OFFSET 0x90
#define CXL_UPSTREAM_PORT_AER_OFFSET 0x100
#define CXL_UPSTREAM_PORT_DVSEC_OFFSET \
(CXL_UPSTREAM_PORT_AER_OFFSET + PCI_ERR_SIZEOF)
typedef struct CXLUpstreamPort {
/*< private >*/
PCIEPort parent_obj;
/*< public >*/
CXLComponentState cxl_cstate;
} CXLUpstreamPort;
CXLComponentState *cxl_usp_to_cstate(CXLUpstreamPort *usp)
{
return &usp->cxl_cstate;
}
static void cxl_usp_dvsec_write_config(PCIDevice *dev, uint32_t addr,
uint32_t val, int len)
{
CXLUpstreamPort *usp = CXL_USP(dev);
if (range_contains(&usp->cxl_cstate.dvsecs[EXTENSIONS_PORT_DVSEC], addr)) {
uint8_t *reg = &dev->config[addr];
addr -= usp->cxl_cstate.dvsecs[EXTENSIONS_PORT_DVSEC].lob;
if (addr == PORT_CONTROL_OFFSET) {
if (pci_get_word(reg) & PORT_CONTROL_UNMASK_SBR) {
/* unmask SBR */
qemu_log_mask(LOG_UNIMP, "SBR mask control is not supported\n");
}
if (pci_get_word(reg) & PORT_CONTROL_ALT_MEMID_EN) {
/* Alt Memory & ID Space Enable */
qemu_log_mask(LOG_UNIMP,
"Alt Memory & ID space is not supported\n");
}
}
}
}
static void cxl_usp_write_config(PCIDevice *d, uint32_t address,
uint32_t val, int len)
{
pci_bridge_write_config(d, address, val, len);
pcie_cap_flr_write_config(d, address, val, len);
pcie_aer_write_config(d, address, val, len);
cxl_usp_dvsec_write_config(d, address, val, len);
}
static void latch_registers(CXLUpstreamPort *usp)
{
uint32_t *reg_state = usp->cxl_cstate.crb.cache_mem_registers;
uint32_t *write_msk = usp->cxl_cstate.crb.cache_mem_regs_write_mask;
cxl_component_register_init_common(reg_state, write_msk,
CXL2_UPSTREAM_PORT);
ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY, TARGET_COUNT, 8);
}
static void cxl_usp_reset(DeviceState *qdev)
{
PCIDevice *d = PCI_DEVICE(qdev);
CXLUpstreamPort *usp = CXL_USP(qdev);
pci_bridge_reset(qdev);
pcie_cap_deverr_reset(d);
latch_registers(usp);
}
static void build_dvsecs(CXLComponentState *cxl)
{
uint8_t *dvsec;
dvsec = (uint8_t *)&(CXLDVSECPortExtensions){
.status = 0x1, /* Port Power Management Init Complete */
};
cxl_component_create_dvsec(cxl, CXL2_UPSTREAM_PORT,
EXTENSIONS_PORT_DVSEC_LENGTH,
EXTENSIONS_PORT_DVSEC,
EXTENSIONS_PORT_DVSEC_REVID, dvsec);
dvsec = (uint8_t *)&(CXLDVSECPortFlexBus){
.cap = 0x27, /* Cache, IO, Mem, non-MLD */
.ctrl = 0x27, /* Cache, IO, Mem */
.status = 0x26, /* same */
.rcvd_mod_ts_data_phase1 = 0xef, /* WTF? */
};
cxl_component_create_dvsec(cxl, CXL2_UPSTREAM_PORT,
PCIE_FLEXBUS_PORT_DVSEC_LENGTH_2_0,
PCIE_FLEXBUS_PORT_DVSEC,
PCIE_FLEXBUS_PORT_DVSEC_REVID_2_0, dvsec);
dvsec = (uint8_t *)&(CXLDVSECRegisterLocator){
.rsvd = 0,
.reg0_base_lo = RBI_COMPONENT_REG | CXL_COMPONENT_REG_BAR_IDX,
.reg0_base_hi = 0,
};
cxl_component_create_dvsec(cxl, CXL2_UPSTREAM_PORT,
REG_LOC_DVSEC_LENGTH, REG_LOC_DVSEC,
REG_LOC_DVSEC_REVID, dvsec);
}
static void cxl_usp_realize(PCIDevice *d, Error **errp)
{
PCIEPort *p = PCIE_PORT(d);
CXLUpstreamPort *usp = CXL_USP(d);
CXLComponentState *cxl_cstate = &usp->cxl_cstate;
ComponentRegisters *cregs = &cxl_cstate->crb;
MemoryRegion *component_bar = &cregs->component_registers;
int rc;
pci_bridge_initfn(d, TYPE_PCIE_BUS);
pcie_port_init_reg(d);
rc = msi_init(d, CXL_UPSTREAM_PORT_MSI_OFFSET,
CXL_UPSTREAM_PORT_MSI_NR_VECTOR, true, true, errp);
if (rc) {
assert(rc == -ENOTSUP);
goto err_bridge;
}
rc = pcie_cap_init(d, CXL_UPSTREAM_PORT_PCIE_CAP_OFFSET,
PCI_EXP_TYPE_UPSTREAM, p->port, errp);
if (rc < 0) {
goto err_msi;
}
pcie_cap_flr_init(d);
pcie_cap_deverr_init(d);
rc = pcie_aer_init(d, PCI_ERR_VER, CXL_UPSTREAM_PORT_AER_OFFSET,
PCI_ERR_SIZEOF, errp);
if (rc) {
goto err_cap;
}
cxl_cstate->dvsec_offset = CXL_UPSTREAM_PORT_DVSEC_OFFSET;
cxl_cstate->pdev = d;
build_dvsecs(cxl_cstate);
cxl_component_register_block_init(OBJECT(d), cxl_cstate, TYPE_CXL_USP);
pci_register_bar(d, CXL_COMPONENT_REG_BAR_IDX,
PCI_BASE_ADDRESS_SPACE_MEMORY |
PCI_BASE_ADDRESS_MEM_TYPE_64,
component_bar);
return;
err_cap:
pcie_cap_exit(d);
err_msi:
msi_uninit(d);
err_bridge:
pci_bridge_exitfn(d);
}
static void cxl_usp_exitfn(PCIDevice *d)
{
pcie_aer_exit(d);
pcie_cap_exit(d);
msi_uninit(d);
pci_bridge_exitfn(d);
}
static void cxl_upstream_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
PCIDeviceClass *k = PCI_DEVICE_CLASS(oc);
k->is_bridge = true;
k->config_write = cxl_usp_write_config;
k->realize = cxl_usp_realize;
k->exit = cxl_usp_exitfn;
k->vendor_id = 0x19e5; /* Huawei */
k->device_id = 0xa128; /* Emulated CXL Switch Upstream Port */
k->revision = 0;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
dc->desc = "CXL Switch Upstream Port";
dc->reset = cxl_usp_reset;
}
static const TypeInfo cxl_usp_info = {
.name = TYPE_CXL_USP,
.parent = TYPE_PCIE_PORT,
.instance_size = sizeof(CXLUpstreamPort),
.class_init = cxl_upstream_class_init,
.interfaces = (InterfaceInfo[]) {
{ INTERFACE_PCIE_DEVICE },
{ INTERFACE_CXL_DEVICE },
{ }
},
};
static void cxl_usp_register_type(void)
{
type_register_static(&cxl_usp_info);
}
type_init(cxl_usp_register_type);

2
hw/pci-bridge/meson.build
View File

@ -6,7 +6,7 @@ pci_ss.add(when: 'CONFIG_PCIE_PORT', if_true: files('pcie_root_port.c', 'gen_pci
pci_ss.add(when: 'CONFIG_PXB', if_true: files('pci_expander_bridge.c'),
if_false: files('pci_expander_bridge_stubs.c'))
pci_ss.add(when: 'CONFIG_XIO3130', if_true: files('xio3130_upstream.c', 'xio3130_downstream.c'))
pci_ss.add(when: 'CONFIG_CXL', if_true: files('cxl_root_port.c'))
pci_ss.add(when: 'CONFIG_CXL', if_true: files('cxl_root_port.c', 'cxl_upstream.c', 'cxl_downstream.c'))
# NewWorld PowerMac
pci_ss.add(when: 'CONFIG_DEC_PCI', if_true: files('dec.c'))

1
hw/virtio/trace-events
View File

@ -124,6 +124,7 @@ virtio_iommu_remap(const char *name, uint64_t virt_start, uint64_t virt_end, uin
virtio_iommu_set_page_size_mask(const char *name, uint64_t old, uint64_t new) "mr=%s old_mask=0x%"PRIx64" new_mask=0x%"PRIx64
virtio_iommu_notify_flag_add(const char *name) "add notifier to mr %s"
virtio_iommu_notify_flag_del(const char *name) "del notifier from mr %s"
virtio_iommu_switch_address_space(uint8_t bus, uint8_t slot, uint8_t fn, bool on) "Device %02x:%02x.%x switching address space (iommu enabled=%d)"
# virtio-mem.c
virtio_mem_send_response(uint16_t type) "type=%" PRIu16

2
hw/virtio/vhost-user.c
View File

@ -1525,7 +1525,7 @@ static VhostUserHostNotifier *fetch_or_create_notifier(VhostUserState *u,
{
VhostUserHostNotifier *n = NULL;
if (idx >= u->notifiers->len) {
g_ptr_array_set_size(u->notifiers, idx);
g_ptr_array_set_size(u->notifiers, idx + 1);
}
n = g_ptr_array_index(u->notifiers, idx);

4
hw/virtio/vhost.c
View File

@ -886,6 +886,10 @@ static int vhost_dev_set_log(struct vhost_dev *dev, bool enable_log)
err_vq:
for (; i >= 0; --i) {
idx = dev->vhost_ops->vhost_get_vq_index(dev, dev->vq_index + i);
addr = virtio_queue_get_desc_addr(dev->vdev, idx);
if (!addr) {
continue;
}
vhost_virtqueue_set_addr(dev, dev->vqs + i, idx,
dev->log_enabled);
}

319
hw/virtio/virtio-crypto.c
View File

@ -83,7 +83,8 @@ virtio_crypto_create_sym_session(VirtIOCrypto *vcrypto,
struct iovec *iov, unsigned int out_num)
{
VirtIODevice *vdev = VIRTIO_DEVICE(vcrypto);
CryptoDevBackendSymSessionInfo info;
CryptoDevBackendSessionInfo info;
CryptoDevBackendSymSessionInfo *sym_info;
int64_t session_id;
int queue_index;
uint32_t op_type;
@ -92,11 +93,13 @@ virtio_crypto_create_sym_session(VirtIOCrypto *vcrypto,
memset(&info, 0, sizeof(info));
op_type = ldl_le_p(&sess_req->op_type);
info.op_type = op_type;
info.op_code = opcode;
sym_info = &info.u.sym_sess_info;
sym_info->op_type = op_type;
if (op_type == VIRTIO_CRYPTO_SYM_OP_CIPHER) {
ret = virtio_crypto_cipher_session_helper(vdev, &info,
ret = virtio_crypto_cipher_session_helper(vdev, sym_info,
&sess_req->u.cipher.para,
&iov, &out_num);
if (ret < 0) {
@ -105,47 +108,47 @@ virtio_crypto_create_sym_session(VirtIOCrypto *vcrypto,
} else if (op_type == VIRTIO_CRYPTO_SYM_OP_ALGORITHM_CHAINING) {
size_t s;
/* cipher part */
ret = virtio_crypto_cipher_session_helper(vdev, &info,
ret = virtio_crypto_cipher_session_helper(vdev, sym_info,
&sess_req->u.chain.para.cipher_param,
&iov, &out_num);
if (ret < 0) {
goto err;
}
/* hash part */
info.alg_chain_order = ldl_le_p(
sym_info->alg_chain_order = ldl_le_p(
&sess_req->u.chain.para.alg_chain_order);
info.add_len = ldl_le_p(&sess_req->u.chain.para.aad_len);
info.hash_mode = ldl_le_p(&sess_req->u.chain.para.hash_mode);
if (info.hash_mode == VIRTIO_CRYPTO_SYM_HASH_MODE_AUTH) {
info.hash_alg = ldl_le_p(&sess_req->u.chain.para.u.mac_param.algo);
info.auth_key_len = ldl_le_p(
sym_info->add_len = ldl_le_p(&sess_req->u.chain.para.aad_len);
sym_info->hash_mode = ldl_le_p(&sess_req->u.chain.para.hash_mode);
if (sym_info->hash_mode == VIRTIO_CRYPTO_SYM_HASH_MODE_AUTH) {
sym_info->hash_alg =
ldl_le_p(&sess_req->u.chain.para.u.mac_param.algo);
sym_info->auth_key_len = ldl_le_p(
&sess_req->u.chain.para.u.mac_param.auth_key_len);
info.hash_result_len = ldl_le_p(
sym_info->hash_result_len = ldl_le_p(
&sess_req->u.chain.para.u.mac_param.hash_result_len);
if (info.auth_key_len > vcrypto->conf.max_auth_key_len) {
if (sym_info->auth_key_len > vcrypto->conf.max_auth_key_len) {
error_report("virtio-crypto length of auth key is too big: %u",
info.auth_key_len);
sym_info->auth_key_len);
ret = -VIRTIO_CRYPTO_ERR;
goto err;
}
/* get auth key */
if (info.auth_key_len > 0) {
DPRINTF("auth_keylen=%" PRIu32 "\n", info.auth_key_len);
info.auth_key = g_malloc(info.auth_key_len);
s = iov_to_buf(iov, out_num, 0, info.auth_key,
info.auth_key_len);
if (unlikely(s != info.auth_key_len)) {
if (sym_info->auth_key_len > 0) {
sym_info->auth_key = g_malloc(sym_info->auth_key_len);
s = iov_to_buf(iov, out_num, 0, sym_info->auth_key,
sym_info->auth_key_len);
if (unlikely(s != sym_info->auth_key_len)) {
virtio_error(vdev,
"virtio-crypto authenticated key incorrect");
ret = -EFAULT;
goto err;
}
iov_discard_front(&iov, &out_num, info.auth_key_len);
iov_discard_front(&iov, &out_num, sym_info->auth_key_len);
}
} else if (info.hash_mode == VIRTIO_CRYPTO_SYM_HASH_MODE_PLAIN) {
info.hash_alg = ldl_le_p(
} else if (sym_info->hash_mode == VIRTIO_CRYPTO_SYM_HASH_MODE_PLAIN) {
sym_info->hash_alg = ldl_le_p(
&sess_req->u.chain.para.u.hash_param.algo);
info.hash_result_len = ldl_le_p(
sym_info->hash_result_len = ldl_le_p(
&sess_req->u.chain.para.u.hash_param.hash_result_len);
} else {
/* VIRTIO_CRYPTO_SYM_HASH_MODE_NESTED */
@ -161,13 +164,10 @@ virtio_crypto_create_sym_session(VirtIOCrypto *vcrypto,
}
queue_index = virtio_crypto_vq2q(queue_id);
session_id = cryptodev_backend_sym_create_session(
session_id = cryptodev_backend_create_session(
vcrypto->cryptodev,
&info, queue_index, &local_err);
if (session_id >= 0) {
DPRINTF("create session_id=%" PRIu64 " successfully\n",
session_id);
ret = session_id;
} else {
if (local_err) {
@ -177,11 +177,78 @@ virtio_crypto_create_sym_session(VirtIOCrypto *vcrypto,
}
err:
g_free(info.cipher_key);
g_free(info.auth_key);
g_free(sym_info->cipher_key);
g_free(sym_info->auth_key);
return ret;
}
static int64_t
virtio_crypto_create_asym_session(VirtIOCrypto *vcrypto,
struct virtio_crypto_akcipher_create_session_req *sess_req,
uint32_t queue_id, uint32_t opcode,
struct iovec *iov, unsigned int out_num)
{
VirtIODevice *vdev = VIRTIO_DEVICE(vcrypto);
CryptoDevBackendSessionInfo info = {0};
CryptoDevBackendAsymSessionInfo *asym_info;
int64_t session_id;
int queue_index;
uint32_t algo, keytype, keylen;
g_autofree uint8_t *key = NULL;
Error *local_err = NULL;
algo = ldl_le_p(&sess_req->para.algo);
keytype = ldl_le_p(&sess_req->para.keytype);
keylen = ldl_le_p(&sess_req->para.keylen);
if ((keytype != VIRTIO_CRYPTO_AKCIPHER_KEY_TYPE_PUBLIC)
&& (keytype != VIRTIO_CRYPTO_AKCIPHER_KEY_TYPE_PRIVATE)) {
error_report("unsupported asym keytype: %d", keytype);
return -VIRTIO_CRYPTO_NOTSUPP;
}
if (keylen) {
key = g_malloc(keylen);
if (iov_to_buf(iov, out_num, 0, key, keylen) != keylen) {
virtio_error(vdev, "virtio-crypto asym key incorrect");
return -EFAULT;
}
iov_discard_front(&iov, &out_num, keylen);
}
info.op_code = opcode;
asym_info = &info.u.asym_sess_info;
asym_info->algo = algo;
asym_info->keytype = keytype;
asym_info->keylen = keylen;
asym_info->key = key;
switch (asym_info->algo) {
case VIRTIO_CRYPTO_AKCIPHER_RSA:
asym_info->u.rsa.padding_algo =
ldl_le_p(&sess_req->para.u.rsa.padding_algo);
asym_info->u.rsa.hash_algo =
ldl_le_p(&sess_req->para.u.rsa.hash_algo);
break;
/* TODO DSA&ECDSA handling */
default:
return -VIRTIO_CRYPTO_ERR;
}
queue_index = virtio_crypto_vq2q(queue_id);
session_id = cryptodev_backend_create_session(vcrypto->cryptodev, &info,
queue_index, &local_err);
if (session_id < 0) {
if (local_err) {
error_report_err(local_err);
}
return -VIRTIO_CRYPTO_ERR;
}
return session_id;
}
static uint8_t
virtio_crypto_handle_close_session(VirtIOCrypto *vcrypto,
struct virtio_crypto_destroy_session_req *close_sess_req,
@ -195,7 +262,7 @@ virtio_crypto_handle_close_session(VirtIOCrypto *vcrypto,
session_id = ldq_le_p(&close_sess_req->session_id);
DPRINTF("close session, id=%" PRIu64 "\n", session_id);
ret = cryptodev_backend_sym_close_session(
ret = cryptodev_backend_close_session(
vcrypto->cryptodev, session_id, queue_id, &local_err);
if (ret == 0) {
status = VIRTIO_CRYPTO_OK;
@ -260,13 +327,22 @@ static void virtio_crypto_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq)
opcode = ldl_le_p(&ctrl.header.opcode);
queue_id = ldl_le_p(&ctrl.header.queue_id);
memset(&input, 0, sizeof(input));
switch (opcode) {
case VIRTIO_CRYPTO_CIPHER_CREATE_SESSION:
memset(&input, 0, sizeof(input));
session_id = virtio_crypto_create_sym_session(vcrypto,
&ctrl.u.sym_create_session,
queue_id, opcode,
out_iov, out_num);
goto check_session;
case VIRTIO_CRYPTO_AKCIPHER_CREATE_SESSION:
session_id = virtio_crypto_create_asym_session(vcrypto,
&ctrl.u.akcipher_create_session,
queue_id, opcode,
out_iov, out_num);
check_session:
/* Serious errors, need to reset virtio crypto device */
if (session_id == -EFAULT) {
virtqueue_detach_element(vq, elem, 0);
@ -290,10 +366,12 @@ static void virtio_crypto_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq)
virtqueue_push(vq, elem, sizeof(input));
virtio_notify(vdev, vq);
break;
case VIRTIO_CRYPTO_CIPHER_DESTROY_SESSION:
case VIRTIO_CRYPTO_HASH_DESTROY_SESSION:
case VIRTIO_CRYPTO_MAC_DESTROY_SESSION:
case VIRTIO_CRYPTO_AEAD_DESTROY_SESSION:
case VIRTIO_CRYPTO_AKCIPHER_DESTROY_SESSION:
status = virtio_crypto_handle_close_session(vcrypto,
&ctrl.u.destroy_session, queue_id);
/* The status only occupy one byte, we can directly use it */
@ -311,7 +389,6 @@ static void virtio_crypto_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq)
case VIRTIO_CRYPTO_AEAD_CREATE_SESSION:
default:
error_report("virtio-crypto unsupported ctrl opcode: %d", opcode);
memset(&input, 0, sizeof(input));
stl_le_p(&input.status, VIRTIO_CRYPTO_NOTSUPP);
s = iov_from_buf(in_iov, in_num, 0, &input, sizeof(input));
if (unlikely(s != sizeof(input))) {
@ -339,28 +416,39 @@ static void virtio_crypto_init_request(VirtIOCrypto *vcrypto, VirtQueue *vq,
req->in_num = 0;
req->in_len = 0;
req->flags = CRYPTODEV_BACKEND_ALG__MAX;
req->u.sym_op_info = NULL;
memset(&req->op_info, 0x00, sizeof(req->op_info));
}
static void virtio_crypto_free_request(VirtIOCryptoReq *req)
{
if (req) {
if (req->flags == CRYPTODEV_BACKEND_ALG_SYM) {
size_t max_len;
CryptoDevBackendSymOpInfo *op_info = req->u.sym_op_info;
if (!req) {
return;
}
max_len = op_info->iv_len +
op_info->aad_len +
op_info->src_len +
op_info->dst_len +
op_info->digest_result_len;
if (req->flags == CRYPTODEV_BACKEND_ALG_SYM) {
size_t max_len;
CryptoDevBackendSymOpInfo *op_info = req->op_info.u.sym_op_info;
/* Zeroize and free request data structure */
memset(op_info, 0, sizeof(*op_info) + max_len);
max_len = op_info->iv_len +
op_info->aad_len +
op_info->src_len +
op_info->dst_len +
op_info->digest_result_len;
/* Zeroize and free request data structure */
memset(op_info, 0, sizeof(*op_info) + max_len);
g_free(op_info);
} else if (req->flags == CRYPTODEV_BACKEND_ALG_ASYM) {
CryptoDevBackendAsymOpInfo *op_info = req->op_info.u.asym_op_info;
if (op_info) {
g_free(op_info->src);
g_free(op_info->dst);
memset(op_info, 0, sizeof(*op_info));
g_free(op_info);
}
g_free(req);
}
g_free(req);
}
static void
@ -397,6 +485,35 @@ virtio_crypto_sym_input_data_helper(VirtIODevice *vdev,
}
}
static void
virtio_crypto_akcipher_input_data_helper(VirtIODevice *vdev,
VirtIOCryptoReq *req, int32_t status,
CryptoDevBackendAsymOpInfo *asym_op_info)
{
size_t s, len;
if (status != VIRTIO_CRYPTO_OK) {
return;
}
len = asym_op_info->dst_len;
if (!len) {
return;
}
s = iov_from_buf(req->in_iov, req->in_num, 0, asym_op_info->dst, len);
if (s != len) {
virtio_error(vdev, "virtio-crypto asym dest data incorrect");
return;
}
iov_discard_front(&req->in_iov, &req->in_num, len);
/* For akcipher, dst_len may be changed after operation */
req->in_len = sizeof(struct virtio_crypto_inhdr) + asym_op_info->dst_len;
}
static void virtio_crypto_req_complete(VirtIOCryptoReq *req, uint8_t status)
{
VirtIOCrypto *vcrypto = req->vcrypto;
@ -404,7 +521,10 @@ static void virtio_crypto_req_complete(VirtIOCryptoReq *req, uint8_t status)
if (req->flags == CRYPTODEV_BACKEND_ALG_SYM) {
virtio_crypto_sym_input_data_helper(vdev, req, status,
req->u.sym_op_info);
req->op_info.u.sym_op_info);
} else if (req->flags == CRYPTODEV_BACKEND_ALG_ASYM) {
virtio_crypto_akcipher_input_data_helper(vdev, req, status,
req->op_info.u.asym_op_info);
}
stb_p(&req->in->status, status);
virtqueue_push(req->vq, &req->elem, req->in_len);
@ -543,41 +663,100 @@ err:
static int
virtio_crypto_handle_sym_req(VirtIOCrypto *vcrypto,
struct virtio_crypto_sym_data_req *req,
CryptoDevBackendSymOpInfo **sym_op_info,
CryptoDevBackendOpInfo *op_info,
struct iovec *iov, unsigned int out_num)
{
VirtIODevice *vdev = VIRTIO_DEVICE(vcrypto);
CryptoDevBackendSymOpInfo *sym_op_info;
uint32_t op_type;
CryptoDevBackendSymOpInfo *op_info;
op_type = ldl_le_p(&req->op_type);
if (op_type == VIRTIO_CRYPTO_SYM_OP_CIPHER) {
op_info = virtio_crypto_sym_op_helper(vdev, &req->u.cipher.para,
sym_op_info = virtio_crypto_sym_op_helper(vdev, &req->u.cipher.para,
NULL, iov, out_num);
if (!op_info) {
if (!sym_op_info) {
return -EFAULT;
}
op_info->op_type = op_type;
} else if (op_type == VIRTIO_CRYPTO_SYM_OP_ALGORITHM_CHAINING) {
op_info = virtio_crypto_sym_op_helper(vdev, NULL,
sym_op_info = virtio_crypto_sym_op_helper(vdev, NULL,
&req->u.chain.para,
iov, out_num);
if (!op_info) {
if (!sym_op_info) {
return -EFAULT;
}
op_info->op_type = op_type;
} else {
/* VIRTIO_CRYPTO_SYM_OP_NONE */
error_report("virtio-crypto unsupported cipher type");
return -VIRTIO_CRYPTO_NOTSUPP;
}
*sym_op_info = op_info;
sym_op_info->op_type = op_type;
op_info->u.sym_op_info = sym_op_info;
return 0;
}
static int
virtio_crypto_handle_asym_req(VirtIOCrypto *vcrypto,
struct virtio_crypto_akcipher_data_req *req,
CryptoDevBackendOpInfo *op_info,
struct iovec *iov, unsigned int out_num)
{
VirtIODevice *vdev = VIRTIO_DEVICE(vcrypto);
CryptoDevBackendAsymOpInfo *asym_op_info;
uint32_t src_len;
uint32_t dst_len;
uint32_t len;
uint8_t *src = NULL;
uint8_t *dst = NULL;
asym_op_info = g_malloc0(sizeof(CryptoDevBackendAsymOpInfo));
src_len = ldl_le_p(&req->para.src_data_len);
dst_len = ldl_le_p(&req->para.dst_data_len);
if (src_len > 0) {
src = g_malloc0(src_len);
len = iov_to_buf(iov, out_num, 0, src, src_len);
if (unlikely(len != src_len)) {
virtio_error(vdev, "virtio-crypto asym src data incorrect"
"expected %u, actual %u", src_len, len);
goto err;
}
iov_discard_front(&iov, &out_num, src_len);
}
if (dst_len > 0) {
dst = g_malloc0(dst_len);
if (op_info->op_code == VIRTIO_CRYPTO_AKCIPHER_VERIFY) {
len = iov_to_buf(iov, out_num, 0, dst, dst_len);
if (unlikely(len != dst_len)) {
virtio_error(vdev, "virtio-crypto asym dst data incorrect"
"expected %u, actual %u", dst_len, len);
goto err;
}
iov_discard_front(&iov, &out_num, dst_len);
}
}
asym_op_info->src_len = src_len;
asym_op_info->dst_len = dst_len;
asym_op_info->src = src;
asym_op_info->dst = dst;
op_info->u.asym_op_info = asym_op_info;
return 0;
err:
g_free(asym_op_info);
g_free(src);
g_free(dst);
return -EFAULT;
}
static int
virtio_crypto_handle_request(VirtIOCryptoReq *request)
{
@ -595,8 +774,7 @@ virtio_crypto_handle_request(VirtIOCryptoReq *request)
unsigned out_num;
uint32_t opcode;
uint8_t status = VIRTIO_CRYPTO_ERR;
uint64_t session_id;
CryptoDevBackendSymOpInfo *sym_op_info = NULL;
CryptoDevBackendOpInfo *op_info = &request->op_info;
Error *local_err = NULL;
if (elem->out_num < 1 || elem->in_num < 1) {
@ -639,15 +817,28 @@ virtio_crypto_handle_request(VirtIOCryptoReq *request)
request->in_iov = in_iov;
opcode = ldl_le_p(&req.header.opcode);
session_id = ldq_le_p(&req.header.session_id);
op_info->session_id = ldq_le_p(&req.header.session_id);
op_info->op_code = opcode;
switch (opcode) {
case VIRTIO_CRYPTO_CIPHER_ENCRYPT:
case VIRTIO_CRYPTO_CIPHER_DECRYPT:
op_info->algtype = request->flags = CRYPTODEV_BACKEND_ALG_SYM;
ret = virtio_crypto_handle_sym_req(vcrypto,
&req.u.sym_req,
&sym_op_info,
&req.u.sym_req, op_info,
out_iov, out_num);
goto check_result;
case VIRTIO_CRYPTO_AKCIPHER_ENCRYPT:
case VIRTIO_CRYPTO_AKCIPHER_DECRYPT:
case VIRTIO_CRYPTO_AKCIPHER_SIGN:
case VIRTIO_CRYPTO_AKCIPHER_VERIFY:
op_info->algtype = request->flags = CRYPTODEV_BACKEND_ALG_ASYM;
ret = virtio_crypto_handle_asym_req(vcrypto,
&req.u.akcipher_req, op_info,
out_iov, out_num);
check_result:
/* Serious errors, need to reset virtio crypto device */
if (ret == -EFAULT) {
return -1;
@ -655,11 +846,8 @@ virtio_crypto_handle_request(VirtIOCryptoReq *request)
virtio_crypto_req_complete(request, VIRTIO_CRYPTO_NOTSUPP);
virtio_crypto_free_request(request);
} else {
sym_op_info->session_id = session_id;
/* Set request's parameter */
request->flags = CRYPTODEV_BACKEND_ALG_SYM;
request->u.sym_op_info = sym_op_info;
ret = cryptodev_backend_crypto_operation(vcrypto->cryptodev,
request, queue_index, &local_err);
if (ret < 0) {
@ -674,6 +862,7 @@ virtio_crypto_handle_request(VirtIOCryptoReq *request)
virtio_crypto_free_request(request);
}
break;
case VIRTIO_CRYPTO_HASH:
case VIRTIO_CRYPTO_MAC:
case VIRTIO_CRYPTO_AEAD_ENCRYPT:
@ -779,6 +968,7 @@ static void virtio_crypto_init_config(VirtIODevice *vdev)
vcrypto->conf.mac_algo_l = vcrypto->conf.cryptodev->conf.mac_algo_l;
vcrypto->conf.mac_algo_h = vcrypto->conf.cryptodev->conf.mac_algo_h;
vcrypto->conf.aead_algo = vcrypto->conf.cryptodev->conf.aead_algo;
vcrypto->conf.akcipher_algo = vcrypto->conf.cryptodev->conf.akcipher_algo;
vcrypto->conf.max_cipher_key_len =
vcrypto->conf.cryptodev->conf.max_cipher_key_len;
vcrypto->conf.max_auth_key_len =
@ -891,6 +1081,7 @@ static void virtio_crypto_get_config(VirtIODevice *vdev, uint8_t *config)
stl_le_p(&crypto_cfg.max_cipher_key_len, c->conf.max_cipher_key_len);
stl_le_p(&crypto_cfg.max_auth_key_len, c->conf.max_auth_key_len);
stq_le_p(&crypto_cfg.max_size, c->conf.max_size);
stl_le_p(&crypto_cfg.akcipher_algo, c->conf.akcipher_algo);
memcpy(config, &crypto_cfg, c->config_size);
}

135
hw/virtio/virtio-iommu.c
View File

@ -69,6 +69,77 @@ static inline uint16_t virtio_iommu_get_bdf(IOMMUDevice *dev)
return PCI_BUILD_BDF(pci_bus_num(dev->bus), dev->devfn);
}
static bool virtio_iommu_device_bypassed(IOMMUDevice *sdev)
{
uint32_t sid;
bool bypassed;
VirtIOIOMMU *s = sdev->viommu;
VirtIOIOMMUEndpoint *ep;
sid = virtio_iommu_get_bdf(sdev);
qemu_rec_mutex_lock(&s->mutex);
/* need to check bypass before system reset */
if (!s->endpoints) {
bypassed = s->config.bypass;
goto unlock;
}
ep = g_tree_lookup(s->endpoints, GUINT_TO_POINTER(sid));
if (!ep || !ep->domain) {
bypassed = s->config.bypass;
} else {
bypassed = ep->domain->bypass;
}
unlock:
qemu_rec_mutex_unlock(&s->mutex);
return bypassed;
}
/* Return whether the device is using IOMMU translation. */
static bool virtio_iommu_switch_address_space(IOMMUDevice *sdev)
{
bool use_remapping;
assert(sdev);
use_remapping = !virtio_iommu_device_bypassed(sdev);
trace_virtio_iommu_switch_address_space(pci_bus_num(sdev->bus),
PCI_SLOT(sdev->devfn),
PCI_FUNC(sdev->devfn),
use_remapping);
/* Turn off first then on the other */
if (use_remapping) {
memory_region_set_enabled(&sdev->bypass_mr, false);
memory_region_set_enabled(MEMORY_REGION(&sdev->iommu_mr), true);
} else {
memory_region_set_enabled(MEMORY_REGION(&sdev->iommu_mr), false);
memory_region_set_enabled(&sdev->bypass_mr, true);
}
return use_remapping;
}
static void virtio_iommu_switch_address_space_all(VirtIOIOMMU *s)
{
GHashTableIter iter;
IOMMUPciBus *iommu_pci_bus;
int i;
g_hash_table_iter_init(&iter, s->as_by_busptr);
while (g_hash_table_iter_next(&iter, NULL, (void **)&iommu_pci_bus)) {
for (i = 0; i < PCI_DEVFN_MAX; i++) {
if (!iommu_pci_bus->pbdev[i]) {
continue;
}
virtio_iommu_switch_address_space(iommu_pci_bus->pbdev[i]);
}
}
}
/**
* The bus number is used for lookup when SID based operations occur.
* In that case we lazily populate the IOMMUPciBus array from the bus hash
@ -213,6 +284,7 @@ static gboolean virtio_iommu_notify_map_cb(gpointer key, gpointer value,
static void virtio_iommu_detach_endpoint_from_domain(VirtIOIOMMUEndpoint *ep)
{
VirtIOIOMMUDomain *domain = ep->domain;
IOMMUDevice *sdev = container_of(ep->iommu_mr, IOMMUDevice, iommu_mr);
if (!ep->domain) {
return;
@ -221,6 +293,7 @@ static void virtio_iommu_detach_endpoint_from_domain(VirtIOIOMMUEndpoint *ep)
ep->iommu_mr);
QLIST_REMOVE(ep, next);
ep->domain = NULL;
virtio_iommu_switch_address_space(sdev);
}
static VirtIOIOMMUEndpoint *virtio_iommu_get_endpoint(VirtIOIOMMU *s,
@ -323,12 +396,39 @@ static AddressSpace *virtio_iommu_find_add_as(PCIBus *bus, void *opaque,
trace_virtio_iommu_init_iommu_mr(name);
memory_region_init(&sdev->root, OBJECT(s), name, UINT64_MAX);
address_space_init(&sdev->as, &sdev->root, TYPE_VIRTIO_IOMMU);
/*
* Build the IOMMU disabled container with aliases to the
* shared MRs. Note that aliasing to a shared memory region
* could help the memory API to detect same FlatViews so we
* can have devices to share the same FlatView when in bypass
* mode. (either by not configuring virtio-iommu driver or with
* "iommu=pt"). It will greatly reduce the total number of
* FlatViews of the system hence VM runs faster.
*/
memory_region_init_alias(&sdev->bypass_mr, OBJECT(s),
"system", get_system_memory(), 0,
memory_region_size(get_system_memory()));
memory_region_init_iommu(&sdev->iommu_mr, sizeof(sdev->iommu_mr),
TYPE_VIRTIO_IOMMU_MEMORY_REGION,
OBJECT(s), name,
UINT64_MAX);
address_space_init(&sdev->as,
MEMORY_REGION(&sdev->iommu_mr), TYPE_VIRTIO_IOMMU);
/*
* Hook both the containers under the root container, we
* switch between iommu & bypass MRs by enable/disable
* corresponding sub-containers
*/
memory_region_add_subregion_overlap(&sdev->root, 0,
MEMORY_REGION(&sdev->iommu_mr),
0);
memory_region_add_subregion_overlap(&sdev->root, 0,
&sdev->bypass_mr, 0);
virtio_iommu_switch_address_space(sdev);
g_free(name);
}
return &sdev->as;
@ -342,6 +442,7 @@ static int virtio_iommu_attach(VirtIOIOMMU *s,
uint32_t flags = le32_to_cpu(req->flags);
VirtIOIOMMUDomain *domain;
VirtIOIOMMUEndpoint *ep;
IOMMUDevice *sdev;
trace_virtio_iommu_attach(domain_id, ep_id);
@ -375,6 +476,8 @@ static int virtio_iommu_attach(VirtIOIOMMU *s,
QLIST_INSERT_HEAD(&domain->endpoint_list, ep, next);
ep->domain = domain;
sdev = container_of(ep->iommu_mr, IOMMUDevice, iommu_mr);
virtio_iommu_switch_address_space(sdev);
/* Replay domain mappings on the associated memory region */
g_tree_foreach(domain->mappings, virtio_iommu_notify_map_cb,
@ -642,7 +745,7 @@ static void virtio_iommu_handle_command(VirtIODevice *vdev, VirtQueue *vq)
tail.status = VIRTIO_IOMMU_S_DEVERR;
goto out;
}
qemu_mutex_lock(&s->mutex);
qemu_rec_mutex_lock(&s->mutex);
switch (head.type) {
case VIRTIO_IOMMU_T_ATTACH:
tail.status = virtio_iommu_handle_attach(s, iov, iov_cnt);
@ -671,7 +774,7 @@ static void virtio_iommu_handle_command(VirtIODevice *vdev, VirtQueue *vq)
default:
tail.status = VIRTIO_IOMMU_S_UNSUPP;
}
qemu_mutex_unlock(&s->mutex);
qemu_rec_mutex_unlock(&s->mutex);
out:
sz = iov_from_buf(elem->in_sg, elem->in_num, 0,
@ -759,9 +862,13 @@ static IOMMUTLBEntry virtio_iommu_translate(IOMMUMemoryRegion *mr, hwaddr addr,
sid = virtio_iommu_get_bdf(sdev);
trace_virtio_iommu_translate(mr->parent_obj.name, sid, addr, flag);
qemu_mutex_lock(&s->mutex);
qemu_rec_mutex_lock(&s->mutex);
ep = g_tree_lookup(s->endpoints, GUINT_TO_POINTER(sid));
if (bypass_allowed)
assert(ep && ep->domain && !ep->domain->bypass);
if (!ep) {
if (!bypass_allowed) {
error_report_once("%s sid=%d is not known!!", __func__, sid);
@ -843,7 +950,7 @@ static IOMMUTLBEntry virtio_iommu_translate(IOMMUMemoryRegion *mr, hwaddr addr,
trace_virtio_iommu_translate_out(addr, entry.translated_addr, sid);
unlock:
qemu_mutex_unlock(&s->mutex);
qemu_rec_mutex_unlock(&s->mutex);
return entry;
}
@ -887,6 +994,7 @@ static void virtio_iommu_set_config(VirtIODevice *vdev,
return;
}
dev_config->bypass = in_config->bypass;
virtio_iommu_switch_address_space_all(dev);
}
trace_virtio_iommu_set_config(in_config->bypass);
@ -931,7 +1039,7 @@ static void virtio_iommu_replay(IOMMUMemoryRegion *mr, IOMMUNotifier *n)
sid = virtio_iommu_get_bdf(sdev);
qemu_mutex_lock(&s->mutex);
qemu_rec_mutex_lock(&s->mutex);
if (!s->endpoints) {
goto unlock;
@ -945,7 +1053,7 @@ static void virtio_iommu_replay(IOMMUMemoryRegion *mr, IOMMUNotifier *n)
g_tree_foreach(ep->domain->mappings, virtio_iommu_remap, mr);
unlock:
qemu_mutex_unlock(&s->mutex);
qemu_rec_mutex_unlock(&s->mutex);
}
static int virtio_iommu_notify_flag_changed(IOMMUMemoryRegion *iommu_mr,
@ -1026,6 +1134,8 @@ static void virtio_iommu_system_reset(void *opaque)
* system reset
*/
s->config.bypass = s->boot_bypass;
virtio_iommu_switch_address_space_all(s);
}
static void virtio_iommu_device_realize(DeviceState *dev, Error **errp)
@ -1041,6 +1151,11 @@ static void virtio_iommu_device_realize(DeviceState *dev, Error **errp)
virtio_iommu_handle_command);
s->event_vq = virtio_add_queue(vdev, VIOMMU_DEFAULT_QUEUE_SIZE, NULL);
/*
* config.bypass is needed to get initial address space early, such as
* in vfio realize
*/
s->config.bypass = s->boot_bypass;
s->config.page_size_mask = TARGET_PAGE_MASK;
s->config.input_range.end = UINT64_MAX;
s->config.domain_range.end = UINT32_MAX;
@ -1056,7 +1171,7 @@ static void virtio_iommu_device_realize(DeviceState *dev, Error **errp)
virtio_add_feature(&s->features, VIRTIO_IOMMU_F_PROBE);
virtio_add_feature(&s->features, VIRTIO_IOMMU_F_BYPASS_CONFIG);
qemu_mutex_init(&s->mutex);
qemu_rec_mutex_init(&s->mutex);
s->as_by_busptr = g_hash_table_new_full(NULL, NULL, NULL, g_free);
@ -1084,6 +1199,8 @@ static void virtio_iommu_device_unrealize(DeviceState *dev)
g_tree_destroy(s->endpoints);
}
qemu_rec_mutex_destroy(&s->mutex);
virtio_delete_queue(s->req_vq);
virtio_delete_queue(s->event_vq);
virtio_cleanup(vdev);

5
include/hw/cxl/cxl.h
View File

@ -53,4 +53,9 @@ struct CXLHost {
#define TYPE_PXB_CXL_HOST "pxb-cxl-host"
OBJECT_DECLARE_SIMPLE_TYPE(CXLHost, PXB_CXL_HOST)
#define TYPE_CXL_USP "cxl-upstream"
typedef struct CXLUpstreamPort CXLUpstreamPort;
DECLARE_INSTANCE_CHECKER(CXLUpstreamPort, CXL_USP, TYPE_CXL_USP)
CXLComponentState *cxl_usp_to_cstate(CXLUpstreamPort *usp);
#endif

5
include/hw/virtio/virtio-crypto.h
View File

@ -50,6 +50,7 @@ typedef struct VirtIOCryptoConf {
uint32_t mac_algo_l;
uint32_t mac_algo_h;
uint32_t aead_algo;
uint32_t akcipher_algo;
/* Maximum length of cipher key */
uint32_t max_cipher_key_len;
@ -71,9 +72,7 @@ typedef struct VirtIOCryptoReq {
size_t in_len;
VirtQueue *vq;
struct VirtIOCrypto *vcrypto;
union {
CryptoDevBackendSymOpInfo *sym_op_info;
} u;
CryptoDevBackendOpInfo op_info;
} VirtIOCryptoReq;
typedef struct VirtIOCryptoQueue {

4
include/hw/virtio/virtio-iommu.h
View File

@ -37,6 +37,8 @@ typedef struct IOMMUDevice {
int devfn;
IOMMUMemoryRegion iommu_mr;
AddressSpace as;
MemoryRegion root; /* The root container of the device */
MemoryRegion bypass_mr; /* The alias of shared memory MR */
} IOMMUDevice;
typedef struct IOMMUPciBus {
@ -56,7 +58,7 @@ struct VirtIOIOMMU {
ReservedRegion *reserved_regions;
uint32_t nb_reserved_regions;
GTree *domains;
QemuMutex mutex;
QemuRecMutex mutex;
GTree *endpoints;
bool boot_bypass;
};

83
include/sysemu/cryptodev.h
View File

@ -50,13 +50,13 @@ typedef struct CryptoDevBackendClient
enum CryptoDevBackendAlgType {
CRYPTODEV_BACKEND_ALG_SYM,
CRYPTODEV_BACKEND_ALG_ASYM,
CRYPTODEV_BACKEND_ALG__MAX,
};
/**
* CryptoDevBackendSymSessionInfo:
*
* @op_code: operation code (refer to virtio_crypto.h)
* @cipher_alg: algorithm type of CIPHER
* @key_len: byte length of cipher key
* @hash_alg: algorithm type of HASH/MAC
@ -74,7 +74,6 @@ enum CryptoDevBackendAlgType {
*/
typedef struct CryptoDevBackendSymSessionInfo {
/* corresponding with virtio crypto spec */
uint32_t op_code;
uint32_t cipher_alg;
uint32_t key_len;
uint32_t hash_alg;
@ -89,11 +88,36 @@ typedef struct CryptoDevBackendSymSessionInfo {
uint8_t *auth_key;
} CryptoDevBackendSymSessionInfo;
/**
* CryptoDevBackendAsymSessionInfo:
*/
typedef struct CryptoDevBackendRsaPara {
uint32_t padding_algo;
uint32_t hash_algo;
} CryptoDevBackendRsaPara;
typedef struct CryptoDevBackendAsymSessionInfo {
/* corresponding with virtio crypto spec */
uint32_t algo;
uint32_t keytype;
uint32_t keylen;
uint8_t *key;
union {
CryptoDevBackendRsaPara rsa;
} u;
} CryptoDevBackendAsymSessionInfo;
typedef struct CryptoDevBackendSessionInfo {
uint32_t op_code;
union {
CryptoDevBackendSymSessionInfo sym_sess_info;
CryptoDevBackendAsymSessionInfo asym_sess_info;
} u;
} CryptoDevBackendSessionInfo;
/**
* CryptoDevBackendSymOpInfo:
*
* @session_id: session index which was previously
* created by cryptodev_backend_sym_create_session()
* @aad_len: byte length of additional authenticated data
* @iv_len: byte length of initialization vector or counter
* @src_len: byte length of source data
@ -119,7 +143,6 @@ typedef struct CryptoDevBackendSymSessionInfo {
*
*/
typedef struct CryptoDevBackendSymOpInfo {
uint64_t session_id;
uint32_t aad_len;
uint32_t iv_len;
uint32_t src_len;
@ -138,6 +161,33 @@ typedef struct CryptoDevBackendSymOpInfo {
uint8_t data[];
} CryptoDevBackendSymOpInfo;
/**
* CryptoDevBackendAsymOpInfo:
*
* @src_len: byte length of source data
* @dst_len: byte length of destination data
* @src: point to the source data
* @dst: point to the destination data
*
*/
typedef struct CryptoDevBackendAsymOpInfo {
uint32_t src_len;
uint32_t dst_len;
uint8_t *src;
uint8_t *dst;
} CryptoDevBackendAsymOpInfo;
typedef struct CryptoDevBackendOpInfo {
enum CryptoDevBackendAlgType algtype;
uint32_t op_code;
uint64_t session_id;
union {
CryptoDevBackendSymOpInfo *sym_op_info;
CryptoDevBackendAsymOpInfo *asym_op_info;
} u;
} CryptoDevBackendOpInfo;
struct CryptoDevBackendClass {
ObjectClass parent_class;
@ -145,13 +195,13 @@ struct CryptoDevBackendClass {
void (*cleanup)(CryptoDevBackend *backend, Error **errp);
int64_t (*create_session)(CryptoDevBackend *backend,
CryptoDevBackendSymSessionInfo *sess_info,
CryptoDevBackendSessionInfo *sess_info,
uint32_t queue_index, Error **errp);
int (*close_session)(CryptoDevBackend *backend,
uint64_t session_id,
uint32_t queue_index, Error **errp);
int (*do_sym_op)(CryptoDevBackend *backend,
CryptoDevBackendSymOpInfo *op_info,
int (*do_op)(CryptoDevBackend *backend,
CryptoDevBackendOpInfo *op_info,
uint32_t queue_index, Error **errp);
};
@ -190,6 +240,7 @@ struct CryptoDevBackendConf {
uint32_t mac_algo_l;
uint32_t mac_algo_h;
uint32_t aead_algo;
uint32_t akcipher_algo;
/* Maximum length of cipher key */
uint32_t max_cipher_key_len;
/* Maximum length of authenticated key */
@ -247,34 +298,34 @@ void cryptodev_backend_cleanup(
Error **errp);
/**
* cryptodev_backend_sym_create_session:
* cryptodev_backend_create_session:
* @backend: the cryptodev backend object
* @sess_info: parameters needed by session creating
* @queue_index: queue index of cryptodev backend client
* @errp: pointer to a NULL-initialized error object
*
* Create a session for symmetric algorithms
* Create a session for symmetric/symmetric algorithms
*
* Returns: session id on success, or -1 on error
*/
int64_t cryptodev_backend_sym_create_session(
int64_t cryptodev_backend_create_session(
CryptoDevBackend *backend,
CryptoDevBackendSymSessionInfo *sess_info,
CryptoDevBackendSessionInfo *sess_info,
uint32_t queue_index, Error **errp);
/**
* cryptodev_backend_sym_close_session:
* cryptodev_backend_close_session:
* @backend: the cryptodev backend object
* @session_id: the session id
* @queue_index: queue index of cryptodev backend client
* @errp: pointer to a NULL-initialized error object
*
* Close a session for symmetric algorithms which was previously
* created by cryptodev_backend_sym_create_session()
* Close a session for which was previously
* created by cryptodev_backend_create_session()
*
* Returns: 0 on success, or Negative on error
*/
int cryptodev_backend_sym_close_session(
int cryptodev_backend_close_session(
CryptoDevBackend *backend,
uint64_t session_id,
uint32_t queue_index, Error **errp);