Merge remote-tracking branch 'remotes/rth-gitlab/tags/pull-tcg-20210526' into staging

Adjust types for some memory access functions.
Reduce inclusion of tcg headers.
Fix watchpoints vs replay.
Fix tcg/aarch64 roli expansion.
Introduce SysemuCPUOps structure.

# gpg: Signature made Thu 27 May 2021 00:43:54 BST
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth-gitlab/tags/pull-tcg-20210526: (31 commits)
  hw/core: Constify TCGCPUOps
  target/mips: Fold jazz behaviour into mips_cpu_do_transaction_failed
  cpu: Move CPUClass::get_paging_enabled to SysemuCPUOps
  cpu: Move CPUClass::get_memory_mapping to SysemuCPUOps
  cpu: Move CPUClass::get_phys_page_debug to SysemuCPUOps
  cpu: Move CPUClass::asidx_from_attrs to SysemuCPUOps
  cpu: Move CPUClass::write_elf* to SysemuCPUOps
  cpu: Move CPUClass::get_crash_info to SysemuCPUOps
  cpu: Move CPUClass::virtio_is_big_endian to SysemuCPUOps
  cpu: Move CPUClass::vmsd to SysemuCPUOps
  cpu: Introduce SysemuCPUOps structure
  cpu: Move AVR target vmsd field from CPUClass to DeviceClass
  cpu: Rename CPUClass vmsd -> legacy_vmsd
  cpu: Assert DeviceClass::vmsd is NULL on user emulation
  cpu: Directly use get_memory_mapping() fallback handlers in place
  cpu: Directly use get_paging_enabled() fallback handlers in place
  cpu: Directly use cpu_write_elf*() fallback handlers in place
  cpu: Introduce cpu_virtio_is_big_endian()
  cpu: Un-inline cpu_get_phys_page_debug and cpu_asidx_from_attrs
  cpu: Split as cpu-common / cpu-sysemu
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 145 insertions, 0 deletions

diff --git a/hw/core/cpu-sysemu.c b/hw/core/cpu-sysemu.c
new file mode 100644
index 0000000000..00253f8929
--- /dev/null
+++ b/hw/core/cpu-sysemu.c
@@ -0,0 +1,145 @@
+/*
+ * QEMU CPU model (system emulation specific)
+ *
+ * Copyright (c) 2012-2014 SUSE LINUX Products GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see
+ * <http://www.gnu.org/licenses/gpl-2.0.html>
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "hw/core/cpu.h"
+#include "hw/core/sysemu-cpu-ops.h"
+
+bool cpu_paging_enabled(const CPUState *cpu)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    if (cc->sysemu_ops->get_paging_enabled) {
+        return cc->sysemu_ops->get_paging_enabled(cpu);
+    }
+
+    return false;
+}
+
+void cpu_get_memory_mapping(CPUState *cpu, MemoryMappingList *list,
+                            Error **errp)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    if (cc->sysemu_ops->get_memory_mapping) {
+        cc->sysemu_ops->get_memory_mapping(cpu, list, errp);
+        return;
+    }
+
+    error_setg(errp, "Obtaining memory mappings is unsupported on this CPU.");
+}
+
+hwaddr cpu_get_phys_page_attrs_debug(CPUState *cpu, vaddr addr,
+                                     MemTxAttrs *attrs)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    if (cc->sysemu_ops->get_phys_page_attrs_debug) {
+        return cc->sysemu_ops->get_phys_page_attrs_debug(cpu, addr, attrs);
+    }
+    /* Fallback for CPUs which don't implement the _attrs_ hook */
+    *attrs = MEMTXATTRS_UNSPECIFIED;
+    return cc->sysemu_ops->get_phys_page_debug(cpu, addr);
+}
+
+hwaddr cpu_get_phys_page_debug(CPUState *cpu, vaddr addr)
+{
+    MemTxAttrs attrs = {};
+
+    return cpu_get_phys_page_attrs_debug(cpu, addr, &attrs);
+}
+
+int cpu_asidx_from_attrs(CPUState *cpu, MemTxAttrs attrs)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+    int ret = 0;
+
+    if (cc->sysemu_ops->asidx_from_attrs) {
+        ret = cc->sysemu_ops->asidx_from_attrs(cpu, attrs);
+        assert(ret < cpu->num_ases && ret >= 0);
+    }
+    return ret;
+}
+
+int cpu_write_elf32_qemunote(WriteCoreDumpFunction f, CPUState *cpu,
+                             void *opaque)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    if (!cc->sysemu_ops->write_elf32_qemunote) {
+        return 0;
+    }
+    return (*cc->sysemu_ops->write_elf32_qemunote)(f, cpu, opaque);
+}
+
+int cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cpu,
+                         int cpuid, void *opaque)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    if (!cc->sysemu_ops->write_elf32_note) {
+        return -1;
+    }
+    return (*cc->sysemu_ops->write_elf32_note)(f, cpu, cpuid, opaque);
+}
+
+int cpu_write_elf64_qemunote(WriteCoreDumpFunction f, CPUState *cpu,
+                             void *opaque)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    if (!cc->sysemu_ops->write_elf64_qemunote) {
+        return 0;
+    }
+    return (*cc->sysemu_ops->write_elf64_qemunote)(f, cpu, opaque);
+}
+
+int cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cpu,
+                         int cpuid, void *opaque)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    if (!cc->sysemu_ops->write_elf64_note) {
+        return -1;
+    }
+    return (*cc->sysemu_ops->write_elf64_note)(f, cpu, cpuid, opaque);
+}
+
+bool cpu_virtio_is_big_endian(CPUState *cpu)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    if (cc->sysemu_ops->virtio_is_big_endian) {
+        return cc->sysemu_ops->virtio_is_big_endian(cpu);
+    }
+    return target_words_bigendian();
+}
+
+GuestPanicInformation *cpu_get_crash_info(CPUState *cpu)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+    GuestPanicInformation *res = NULL;
+
+    if (cc->sysemu_ops->get_crash_info) {
+        res = cc->sysemu_ops->get_crash_info(cpu);
+    }
+    return res;
+}