This patch removes the restriction of 2G ram size on 64-bit hosts.
Theoretically Sparc32 on a SS-10 like machine could handle more than
62GB of memory.
There seems to be problems in the boot BIOSes to manage even >2G
memory sizes, I've found some in OpenBIOS but there are still many
left.
Any comments?
Index: qemu/exec.c
===================================================================
--- qemu.orig/exec.c 2007-06-25 14:50:03.000000000 +0000
+++ qemu/exec.c 2007-06-25 14:50:40.000000000 +0000
@@ -86,7 +86,7 @@
uint8_t code_gen_buffer[CODE_GEN_BUFFER_SIZE] __attribute__((aligned (32)));
uint8_t *code_gen_ptr;
-int phys_ram_size;
+unsigned long phys_ram_size;
int phys_ram_fd;
uint8_t *phys_ram_base;
uint8_t *phys_ram_dirty;
@@ -111,7 +111,7 @@
typedef struct PhysPageDesc {
/* offset in host memory of the page + io_index in the low 12 bits */
- uint32_t phys_offset;
+ unsigned long phys_offset;
} PhysPageDesc;
#define L2_BITS 10
@@ -1913,7 +1913,7 @@
static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end,
int memory);
-static void *subpage_init (target_phys_addr_t base, uint32_t *phys,
+static void *subpage_init (target_phys_addr_t base, unsigned long *phys,
int orig_memory);
#define CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, \
need_subpage) \
@@ -2358,7 +2358,7 @@
return 0;
}
-static void *subpage_init (target_phys_addr_t base, uint32_t *phys,
+static void *subpage_init (target_phys_addr_t base, unsigned long *phys,
int orig_memory)
{
subpage_t *mmio;
Index: qemu/vl.c
===================================================================
--- qemu.orig/vl.c 2007-06-25 14:50:03.000000000 +0000
+++ qemu/vl.c 2007-06-25 14:50:40.000000000 +0000
@@ -116,7 +116,11 @@
//#define DEBUG_UNUSED_IOPORT
//#define DEBUG_IOPORT
+#if HOST_LONG_BITS < 64
#define PHYS_RAM_MAX_SIZE (2047 * 1024 * 1024)
+#else
+#define PHYS_RAM_MAX_SIZE (2047 * 1024 * 1024 * 1024ULL)
+#endif
#ifdef TARGET_PPC
#define DEFAULT_RAM_SIZE 144
@@ -151,7 +155,7 @@
const char* keyboard_layout = NULL;
int64_t ticks_per_sec;
int boot_device = 'c';
-int ram_size;
+unsigned long ram_size;
int pit_min_timer_count = 0;
int nb_nics;
NICInfo nd_table[MAX_NICS];
@@ -7453,7 +7457,7 @@
help();
break;
case QEMU_OPTION_m:
- ram_size = atoi(optarg) * 1024 * 1024;
+ ram_size = (unsigned long)atoi(optarg) * 1024 * 1024;
if (ram_size <= 0)
help();
if (ram_size > PHYS_RAM_MAX_SIZE) {
Index: qemu/vl.h
===================================================================
--- qemu.orig/vl.h 2007-06-25 14:50:03.000000000 +0000
+++ qemu/vl.h 2007-06-25 14:50:40.000000000 +0000
@@ -145,7 +145,7 @@
void main_loop_wait(int timeout);
-extern int ram_size;
+extern unsigned long ram_size;
extern int bios_size;
extern int rtc_utc;
extern int cirrus_vga_enabled;
@@ -705,7 +705,7 @@
#ifndef QEMU_TOOL
-typedef void QEMUMachineInitFunc(int ram_size, int vga_ram_size,
+typedef void QEMUMachineInitFunc(unsigned long ram_size, int vga_ram_size,
int boot_device,
DisplayState *ds, const char **fd_filename, int snapshot,
const char *kernel_filename, const char *kernel_cmdline,
Index: qemu/hw/sun4m.c
===================================================================
--- qemu.orig/hw/sun4m.c 2007-06-25 14:50:36.000000000 +0000
+++ qemu/hw/sun4m.c 2007-06-25 16:16:43.000000000 +0000
@@ -290,7 +290,7 @@
env->halted = 1;
}
-static void *sun4m_hw_init(const struct hwdef *hwdef, int RAM_size,
+static void *sun4m_hw_init(const struct hwdef *hwdef, unsigned long RAM_size,
DisplayState *ds, const char *cpu_model)
{
@@ -390,7 +390,8 @@
return nvram;
}
-static void sun4m_load_kernel(long vram_size, int RAM_size, int boot_device,
+static void sun4m_load_kernel(long vram_size, unsigned long RAM_size,
+ int boot_device,
const char *kernel_filename,
const char *kernel_cmdline,
const char *initrd_filename,
@@ -525,17 +526,20 @@
},
};
-static void sun4m_common_init(int RAM_size, int boot_device, DisplayState *ds,
- const char *kernel_filename, const char *kernel_cmdline,
- const char *initrd_filename, const char *cpu_model,
- unsigned int machine, int max_ram)
+static void sun4m_common_init(unsigned long RAM_size, int boot_device,
+ DisplayState *ds,
+ const char *kernel_filename,
+ const char *kernel_cmdline,
+ const char *initrd_filename,
+ const char *cpu_model,
+ unsigned int machine, unsigned long max_ram)
{
void *nvram;
- if ((unsigned int)RAM_size > (unsigned int)max_ram) {
- fprintf(stderr, "qemu: Too much memory for this machine: %d, maximum %d\n",
- (unsigned int)RAM_size / (1024 * 1024),
- (unsigned int)max_ram / (1024 * 1024));
+ if (RAM_size > max_ram) {
+ fprintf(stderr, "qemu: Too much memory for this machine: %ld, maximum %ld\n",
+ RAM_size / (1024 * 1024),
+ max_ram / (1024 * 1024));
exit(1);
}
nvram = sun4m_hw_init(&hwdefs[machine], RAM_size, ds, cpu_model);
@@ -546,10 +550,10 @@
}
/* SPARCstation 5 hardware initialisation */
-static void ss5_init(int RAM_size, int vga_ram_size, int boot_device,
- DisplayState *ds, const char **fd_filename, int snapshot,
- const char *kernel_filename, const char *kernel_cmdline,
- const char *initrd_filename, const char *cpu_model)
+static void ss5_init(unsigned long RAM_size, int vga_ram_size, int boot_device,
+ DisplayState *ds, const char **fd_filename, int snapshot,
+ const char *kernel_filename, const char *kernel_cmdline,
+ const char *initrd_filename, const char *cpu_model)
{
if (cpu_model == NULL)
cpu_model = "Fujitsu MB86904";
@@ -559,10 +563,10 @@
}
/* SPARCstation 10 hardware initialisation */
-static void ss10_init(int RAM_size, int vga_ram_size, int boot_device,
- DisplayState *ds, const char **fd_filename, int snapshot,
- const char *kernel_filename, const char *kernel_cmdline,
- const char *initrd_filename, const char *cpu_model)
+static void ss10_init(unsigned long RAM_size, int vga_ram_size, int boot_device,
+ DisplayState *ds, const char **fd_filename, int snapshot,
+ const char *kernel_filename, const char *kernel_cmdline,
+ const char *initrd_filename, const char *cpu_model)
{
if (cpu_model == NULL)
cpu_model = "TI SuperSparc II";
Index: qemu/cpu-all.h
===================================================================
--- qemu.orig/cpu-all.h 2007-06-25 14:50:03.000000000 +0000
+++ qemu/cpu-all.h 2007-06-25 14:50:40.000000000 +0000
@@ -769,7 +769,7 @@
/* memory API */
-extern int phys_ram_size;
+extern unsigned long phys_ram_size;
extern int phys_ram_fd;
extern uint8_t *phys_ram_base;
extern uint8_t *phys_ram_dirty;
