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4549a8b7ee
This patch is based of off version 9 of Stefan Berger's patch series
"QEMU Trusted Platform Module (TPM) integration"
and adds a new backend driver for it.
This patch adds a passthrough backend driver for passing commands sent to the
emulated TPM device directly to a TPM device opened on the host machine.
Thus it is possible to use a hardware TPM device in a system running on QEMU,
providing the ability to access a TPM in a special state (e.g. after a Trusted
Boot).
This functionality is being used in the acTvSM Trusted Virtualization Platform
which is available on [1].
Usage example:
qemu-system-x86_64 -tpmdev passthrough,id=tpm0,path=/dev/tpm0 \
-device tpm-tis,tpmdev=tpm0 \
-cdrom test.iso -boot d
Some notes about the host TPM:
The TPM needs to be enabled and activated. If that's not the case one
has to go through the BIOS/UEFI and enable and activate that TPM for TPM
commands to work as expected.
It may be necessary to boot the kernel using tpm_tis.force=1 in the boot
command line or 'modprobe tpm_tis force=1' in case of using it as a module.
Regards,
Andreas Niederl, Stefan Berger
[1] http://trustedjava.sourceforge.net/
Signed-off-by: Andreas Niederl <andreas.niederl@iaik.tugraz.at>
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com>
Message-id: 1361987275-26289-6-git-send-email-stefanb@linux.vnet.ibm.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
79 lines
2.6 KiB
C
79 lines
2.6 KiB
C
/* headers to use the BSD sockets */
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#ifndef QEMU_SOCKET_H
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#define QEMU_SOCKET_H
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#ifdef _WIN32
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#include <windows.h>
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#define socket_error() WSAGetLastError()
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int inet_aton(const char *cp, struct in_addr *ia);
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#else
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <sys/un.h>
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#define socket_error() errno
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#define closesocket(s) close(s)
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#endif /* !_WIN32 */
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#include "qemu/option.h"
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#include "qapi/error.h"
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#include "qapi/qmp/qerror.h"
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/* misc helpers */
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int qemu_socket(int domain, int type, int protocol);
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int qemu_accept(int s, struct sockaddr *addr, socklen_t *addrlen);
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int socket_set_cork(int fd, int v);
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int socket_set_nodelay(int fd);
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void socket_set_block(int fd);
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void socket_set_nonblock(int fd);
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int send_all(int fd, const void *buf, int len1);
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int recv_all(int fd, void *buf, int len1, bool single_read);
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/* callback function for nonblocking connect
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* valid fd on success, negative error code on failure
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*/
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typedef void NonBlockingConnectHandler(int fd, void *opaque);
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int inet_listen_opts(QemuOpts *opts, int port_offset, Error **errp);
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int inet_listen(const char *str, char *ostr, int olen,
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int socktype, int port_offset, Error **errp);
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int inet_connect_opts(QemuOpts *opts, Error **errp,
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NonBlockingConnectHandler *callback, void *opaque);
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int inet_connect(const char *str, Error **errp);
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int inet_nonblocking_connect(const char *str,
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NonBlockingConnectHandler *callback,
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void *opaque, Error **errp);
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int inet_dgram_opts(QemuOpts *opts, Error **errp);
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const char *inet_strfamily(int family);
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int unix_listen_opts(QemuOpts *opts, Error **errp);
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int unix_listen(const char *path, char *ostr, int olen, Error **errp);
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int unix_connect_opts(QemuOpts *opts, Error **errp,
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NonBlockingConnectHandler *callback, void *opaque);
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int unix_connect(const char *path, Error **errp);
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int unix_nonblocking_connect(const char *str,
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NonBlockingConnectHandler *callback,
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void *opaque, Error **errp);
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SocketAddress *socket_parse(const char *str, Error **errp);
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int socket_connect(SocketAddress *addr, Error **errp,
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NonBlockingConnectHandler *callback, void *opaque);
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int socket_listen(SocketAddress *addr, Error **errp);
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/* Old, ipv4 only bits. Don't use for new code. */
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int parse_host_port(struct sockaddr_in *saddr, const char *str);
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int socket_init(void);
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#endif /* QEMU_SOCKET_H */
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