Merge tag 'exec-20241220' of https://github.com/philmd/qemu into staging

Accel & Exec patch queue

- Ignore writes to CNTP_CTL_EL0 on HVF ARM (Alexander)
- Add '-d invalid_mem' logging option (Zoltan)
- Create QOM containers explicitly (Peter)
- Rename sysemu/ -> system/ (Philippe)
- Re-orderning of include/exec/ headers (Philippe)
  Move a lot of declarations from these legacy mixed bag headers:
    . "exec/cpu-all.h"
    . "exec/cpu-common.h"
    . "exec/cpu-defs.h"
    . "exec/exec-all.h"
    . "exec/translate-all"
  to these more specific ones:
    . "exec/page-protection.h"
    . "exec/translation-block.h"
    . "user/cpu_loop.h"
    . "user/guest-host.h"
    . "user/page-protection.h"

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* tag 'exec-20241220' of https://github.com/philmd/qemu: (59 commits)
  util/qemu-timer: fix indentation
  meson: Do not define CONFIG_DEVICES on user emulation
  system/accel-ops: Remove unnecessary 'exec/cpu-common.h' header
  system/numa: Remove unnecessary 'exec/cpu-common.h' header
  hw/xen: Remove unnecessary 'exec/cpu-common.h' header
  target/mips: Drop left-over comment about Jazz machine
  target/mips: Remove tswap() calls in semihosting uhi_fstat_cb()
  target/xtensa: Remove tswap() calls in semihosting simcall() helper
  accel/tcg: Un-inline translator_is_same_page()
  accel/tcg: Include missing 'exec/translation-block.h' header
  accel/tcg: Move tcg_cflags_has/set() to 'exec/translation-block.h'
  accel/tcg: Restrict curr_cflags() declaration to 'internal-common.h'
  qemu/coroutine: Include missing 'qemu/atomic.h' header
  exec/translation-block: Include missing 'qemu/atomic.h' header
  accel/tcg: Declare cpu_loop_exit_requested() in 'exec/cpu-common.h'
  exec/cpu-all: Include 'cpu.h' earlier so MMU_USER_IDX is always defined
  target/sparc: Move sparc_restore_state_to_opc() to cpu.c
  target/sparc: Uninline cpu_get_tb_cpu_state()
  target/loongarch: Declare loongarch_cpu_dump_state() locally
  user: Move various declarations out of 'exec/exec-all.h'
  ...

Conflicts:
	hw/char/riscv_htif.c
	hw/intc/riscv_aplic.c
	target/s390x/cpu.c

	Apply sysemu header path changes to not in the pull request.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 216 insertions, 0 deletions

diff --git a/include/system/tpm_backend.h b/include/system/tpm_backend.h
new file mode 100644
index 0000000000..01b11f629c
--- /dev/null
+++ b/include/system/tpm_backend.h
@@ -0,0 +1,216 @@
+/*
+ * QEMU TPM Backend
+ *
+ * Copyright IBM, Corp. 2013
+ *
+ * Authors:
+ *  Stefan Berger  <stefanb@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef TPM_BACKEND_H
+#define TPM_BACKEND_H
+
+#include "qom/object.h"
+#include "qemu/option.h"
+#include "system/tpm.h"
+#include "qapi/error.h"
+
+#ifdef CONFIG_TPM
+
+#define TYPE_TPM_BACKEND "tpm-backend"
+OBJECT_DECLARE_TYPE(TPMBackend, TPMBackendClass,
+                    TPM_BACKEND)
+
+
+typedef struct TPMBackendCmd {
+    uint8_t locty;
+    const uint8_t *in;
+    uint32_t in_len;
+    uint8_t *out;
+    uint32_t out_len;
+    bool selftest_done;
+} TPMBackendCmd;
+
+struct TPMBackend {
+    Object parent;
+
+    /*< protected >*/
+    TPMIf *tpmif;
+    bool opened;
+    bool had_startup_error;
+    TPMBackendCmd *cmd;
+
+    /* <public> */
+    char *id;
+
+    QLIST_ENTRY(TPMBackend) list;
+};
+
+struct TPMBackendClass {
+    ObjectClass parent_class;
+
+    enum TpmType type;
+    const QemuOptDesc *opts;
+    /* get a descriptive text of the backend to display to the user */
+    const char *desc;
+
+    TPMBackend *(*create)(QemuOpts *opts);
+
+    /* start up the TPM on the backend - optional */
+    int (*startup_tpm)(TPMBackend *t, size_t buffersize);
+
+    /* optional */
+    void (*reset)(TPMBackend *t);
+
+    void (*cancel_cmd)(TPMBackend *t);
+
+    /* optional */
+    bool (*get_tpm_established_flag)(TPMBackend *t);
+
+    /* optional */
+    int (*reset_tpm_established_flag)(TPMBackend *t, uint8_t locty);
+
+    TPMVersion (*get_tpm_version)(TPMBackend *t);
+
+    size_t (*get_buffer_size)(TPMBackend *t);
+
+    TpmTypeOptions *(*get_tpm_options)(TPMBackend *t);
+
+    void (*handle_request)(TPMBackend *s, TPMBackendCmd *cmd, Error **errp);
+};
+
+/**
+ * tpm_backend_get_type:
+ * @s: the backend
+ *
+ * Returns the TpmType of the backend.
+ */
+enum TpmType tpm_backend_get_type(TPMBackend *s);
+
+/**
+ * tpm_backend_init:
+ * @s: the backend to initialized
+ * @tpmif: TPM interface
+ * @datacb: callback for sending data to frontend
+ * @errp: a pointer to return the #Error object if an error occurs.
+ *
+ * Initialize the backend with the given variables.
+ *
+ * Returns 0 on success.
+ */
+int tpm_backend_init(TPMBackend *s, TPMIf *tpmif, Error **errp);
+
+/**
+ * tpm_backend_startup_tpm:
+ * @s: the backend whose TPM support is to be started
+ * @buffersize: the buffer size the TPM is supposed to use,
+ *              0 to leave it as-is
+ *
+ * Returns 0 on success.
+ */
+int tpm_backend_startup_tpm(TPMBackend *s, size_t buffersize);
+
+/**
+ * tpm_backend_had_startup_error:
+ * @s: the backend to query for a startup error
+ *
+ * Check whether the backend had an error during startup. Returns
+ * false if no error occurred and the backend can be used, true
+ * otherwise.
+ */
+bool tpm_backend_had_startup_error(TPMBackend *s);
+
+/**
+ * tpm_backend_deliver_request:
+ * @s: the backend to send the request to
+ * @cmd: the command to deliver
+ *
+ * Send a request to the backend. The backend will then send the request
+ * to the TPM implementation.
+ */
+void tpm_backend_deliver_request(TPMBackend *s, TPMBackendCmd *cmd);
+
+/**
+ * tpm_backend_reset:
+ * @s: the backend to reset
+ *
+ * Reset the backend into a well defined state with all previous errors
+ * reset.
+ */
+void tpm_backend_reset(TPMBackend *s);
+
+/**
+ * tpm_backend_cancel_cmd:
+ * @s: the backend
+ *
+ * Cancel any ongoing command being processed by the TPM implementation
+ * on behalf of the QEMU guest.
+ */
+void tpm_backend_cancel_cmd(TPMBackend *s);
+
+/**
+ * tpm_backend_get_tpm_established_flag:
+ * @s: the backend
+ *
+ * Get the TPM establishment flag. This function may be called very
+ * frequently by the frontend since for example in the TIS implementation
+ * this flag is part of a register.
+ */
+bool tpm_backend_get_tpm_established_flag(TPMBackend *s);
+
+/**
+ * tpm_backend_reset_tpm_established_flag:
+ * @s: the backend
+ * @locty: the locality number
+ *
+ * Reset the TPM establishment flag.
+ */
+int tpm_backend_reset_tpm_established_flag(TPMBackend *s, uint8_t locty);
+
+/**
+ * tpm_backend_get_tpm_version:
+ * @s: the backend to call into
+ *
+ * Get the TPM Version that is emulated at the backend.
+ *
+ * Returns TPMVersion.
+ */
+TPMVersion tpm_backend_get_tpm_version(TPMBackend *s);
+
+/**
+ * tpm_backend_get_buffer_size:
+ * @s: the backend to call into
+ *
+ * Get the TPM's buffer size.
+ *
+ * Returns buffer size.
+ */
+size_t tpm_backend_get_buffer_size(TPMBackend *s);
+
+/**
+ * tpm_backend_finish_sync:
+ * @s: the backend to call into
+ *
+ * Finish the pending command synchronously (this will call aio_poll()
+ * on qemu main AIOContext until it ends)
+ */
+void tpm_backend_finish_sync(TPMBackend *s);
+
+/**
+ * tpm_backend_query_tpm:
+ * @s: the backend
+ *
+ * Query backend tpm info
+ *
+ * Returns newly allocated TPMInfo
+ */
+TPMInfo *tpm_backend_query_tpm(TPMBackend *s);
+
+TPMBackend *qemu_find_tpm_be(const char *id);
+
+#endif /* CONFIG_TPM */
+
+#endif /* TPM_BACKEND_H */