Merge tag 'pull-loongarch-20240429' of https://gitlab.com/gaosong/qemu into staging

Add boot LoongArch elf kernel with FDT

v2: Fix 'make check-tcg' fail.

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# gpg:                using RSA key B8FF1DA0D2FDCB2DA09C6C2C40A2FFF239263EDF
# gpg: Good signature from "Song Gao <m17746591750@163.com>" [unknown]
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* tag 'pull-loongarch-20240429' of https://gitlab.com/gaosong/qemu:
  hw/loongarch: Add cells missing from rtc node
  hw/loongarch: Add cells missing from uart node
  hw/loongarch: fdt remove unused irqchip node
  hw/loongarch: fdt adds pcie irq_map node
  hw/loongarch: fdt adds pch_msi Controller
  hw/loongarch: fdt adds pch_pic Controller
  hw/loongarch: fdt adds Extend I/O Interrupt Controller
  hw/loongarch: fdt adds cpu interrupt controller node
  hw/loongarch: Fix fdt memory node wrong 'reg'
  hw/loongarch: Init efi_fdt table
  hw/loongarch: Init efi_initrd table
  hw/loongarch: Init efi_boot_memmap table
  hw/loongarch: Init efi_system_table
  hw/loongarch: Add init_cmdline
  hw/loongarch: Add slave cpu boot_code
  hw/loongarch: Add load initrd
  hw/loongarch: Move boot functions to boot.c

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

4 files changed, 128 insertions, 0 deletions

diff --git a/include/hw/intc/loongarch_extioi.h b/include/hw/intc/loongarch_extioi.h
index a0a46b8..410c6e1 100644
--- a/include/hw/intc/loongarch_extioi.h
+++ b/include/hw/intc/loongarch_extioi.h
@@ -39,6 +39,7 @@
 #define EXTIOI_COREISR_END           (0xB20 - APIC_OFFSET)
 #define EXTIOI_COREMAP_START         (0xC00 - APIC_OFFSET)
 #define EXTIOI_COREMAP_END           (0xD00 - APIC_OFFSET)
+#define EXTIOI_SIZE                  0x800
 
 typedef struct ExtIOICore {
     uint32_t coreisr[EXTIOI_IRQS_GROUP_COUNT];
diff --git a/include/hw/loongarch/boot.h b/include/hw/loongarch/boot.h
new file mode 100644
index 0000000..4ebcc89
--- /dev/null
+++ b/include/hw/loongarch/boot.h
@@ -0,0 +1,109 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Definitions for LoongArch boot.
+ *
+ * Copyright (C) 2023 Loongson Technology Corporation Limited
+ */
+
+#ifndef HW_LOONGARCH_BOOT_H
+#define HW_LOONGARCH_BOOT_H
+
+/* UEFI 2.10 */
+#define EFI_SYSTEM_TABLE_SIGNATURE       0x5453595320494249
+#define EFI_2_100_SYSTEM_TABLE_REVISION  ((2<<16) | (100))
+#define EFI_SPECIFICATION_VERSION        EFI_SYSTEM_TABLE_REVISION
+#define EFI_SYSTEM_TABLE_REVISION        EFI_2_100_SYSTEM_TABLE_REVISION
+
+#define FW_VERSION 0x1
+#define FW_PATCHLEVEL 0x0
+
+typedef struct {
+    uint8_t b[16];
+} efi_guid_t QEMU_ALIGNED(8);
+
+#define EFI_GUID(a, b, c, d...) (efi_guid_t){ {                                \
+        (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
+        (b) & 0xff, ((b) >> 8) & 0xff,                                         \
+        (c) & 0xff, ((c) >> 8) & 0xff, d } }
+
+#define LINUX_EFI_BOOT_MEMMAP_GUID \
+        EFI_GUID(0x800f683f, 0xd08b, 0x423a,  0xa2, 0x93, \
+                 0x96, 0x5c, 0x3c, 0x6f, 0xe2, 0xb4)
+
+#define LINUX_EFI_INITRD_MEDIA_GUID \
+        EFI_GUID(0x5568e427, 0x68fc, 0x4f3d,  0xac, 0x74, \
+                 0xca, 0x55, 0x52, 0x31, 0xcc, 0x68)
+
+#define DEVICE_TREE_GUID \
+        EFI_GUID(0xb1b621d5, 0xf19c, 0x41a5,  0x83, 0x0b, \
+                 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0)
+
+struct efi_config_table {
+    efi_guid_t guid;
+    uint64_t *ptr;
+    const char name[16];
+};
+
+typedef struct {
+    uint64_t signature;
+    uint32_t revision;
+    uint32_t headersize;
+    uint32_t crc32;
+    uint32_t reserved;
+} efi_table_hdr_t;
+
+struct efi_configuration_table {
+    efi_guid_t guid;
+    void *table;
+};
+
+struct efi_system_table {
+    efi_table_hdr_t hdr;
+    uint64_t fw_vendor;        /* physical addr of CHAR16 vendor string */
+    uint32_t fw_revision;
+    uint64_t con_in_handle;
+    uint64_t *con_in;
+    uint64_t con_out_handle;
+    uint64_t *con_out;
+    uint64_t stderr_handle;
+    uint64_t stderr_placeholder;
+    uint64_t *runtime;
+    uint64_t *boottime;
+    uint64_t nr_tables;
+    struct efi_configuration_table *tables;
+};
+
+typedef struct {
+    uint32_t type;
+    uint32_t pad;
+    uint64_t phys_addr;
+    uint64_t virt_addr;
+    uint64_t num_pages;
+    uint64_t attribute;
+} efi_memory_desc_t;
+
+struct efi_boot_memmap {
+    uint64_t map_size;
+    uint64_t desc_size;
+    uint32_t desc_ver;
+    uint64_t map_key;
+    uint64_t buff_size;
+    efi_memory_desc_t map[32];
+};
+
+struct efi_initrd {
+    uint64_t base;
+    uint64_t size;
+};
+
+struct loongarch_boot_info {
+    uint64_t ram_size;
+    const char *kernel_filename;
+    const char *kernel_cmdline;
+    const char *initrd_filename;
+    uint64_t a0, a1, a2;
+};
+
+void loongarch_load_kernel(MachineState *ms, struct loongarch_boot_info *info);
+
+#endif /* HW_LOONGARCH_BOOT_H */
diff --git a/include/hw/loongarch/virt.h b/include/hw/loongarch/virt.h
index 252f7df..4e14bf6 100644
--- a/include/hw/loongarch/virt.h
+++ b/include/hw/loongarch/virt.h
@@ -13,6 +13,7 @@
 #include "qemu/queue.h"
 #include "hw/intc/loongarch_ipi.h"
 #include "hw/block/flash.h"
+#include "hw/loongarch/boot.h"
 
 #define LOONGARCH_MAX_CPUS      256
 
@@ -32,6 +33,20 @@
 #define VIRT_GED_MEM_ADDR       (VIRT_GED_EVT_ADDR + ACPI_GED_EVT_SEL_LEN)
 #define VIRT_GED_REG_ADDR       (VIRT_GED_MEM_ADDR + MEMORY_HOTPLUG_IO_LEN)
 
+#define COMMAND_LINE_SIZE       512
+
+#define FDT_BASE                0x100000
+
+extern struct memmap_entry *memmap_table;
+extern unsigned memmap_entries;
+
+struct memmap_entry {
+    uint64_t address;
+    uint64_t length;
+    uint32_t type;
+    uint32_t reserved;
+};
+
 struct LoongArchMachineState {
     /*< private >*/
     MachineState parent_obj;
@@ -55,6 +70,7 @@ struct LoongArchMachineState {
     MemoryRegion system_iocsr;
     MemoryRegion iocsr_mem;
     AddressSpace as_iocsr;
+    struct loongarch_boot_info bootinfo;
 };
 
 #define TYPE_LOONGARCH_MACHINE  MACHINE_TYPE_NAME("virt")
diff --git a/include/hw/pci-host/ls7a.h b/include/hw/pci-host/ls7a.h
index e753449..cd7c9ec 100644
--- a/include/hw/pci-host/ls7a.h
+++ b/include/hw/pci-host/ls7a.h
@@ -24,6 +24,8 @@
 #define VIRT_PCH_REG_BASE        0x10000000UL
 #define VIRT_IOAPIC_REG_BASE     (VIRT_PCH_REG_BASE)
 #define VIRT_PCH_MSI_ADDR_LOW    0x2FF00000UL
+#define VIRT_PCH_REG_SIZE        0x400
+#define VIRT_PCH_MSI_SIZE        0x8
 
 /*
  * GSI_BASE is hard-coded with 64 in linux kernel, else kernel fails to boot