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[Qemu-devel] [6960] SH4: Add support for kernel cmdline
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [6960] SH4: Add support for kernel cmdline |
Date: |
Tue, 31 Mar 2009 05:55:17 +0000 |
Revision: 6960
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6960
Author: aurel32
Date: 2009-03-31 05:55:16 +0000 (Tue, 31 Mar 2009)
Log Message:
-----------
SH4: Add support for kernel cmdline
Backport of revisions 6792, 6916, 6919 from trunk.
Modified Paths:
--------------
branches/stable_0_10/hw/r2d.c
branches/stable_0_10/loader.c
Modified: branches/stable_0_10/hw/r2d.c
===================================================================
--- branches/stable_0_10/hw/r2d.c 2009-03-30 17:51:29 UTC (rev 6959)
+++ branches/stable_0_10/hw/r2d.c 2009-03-31 05:55:16 UTC (rev 6960)
@@ -37,6 +37,9 @@
#define SM501_VRAM_SIZE 0x800000
+/* CONFIG_BOOT_LINK_OFFSET of Linux kernel */
+#define LINUX_LOAD_OFFSET 0x800000
+
#define PA_IRLMSK 0x00
#define PA_POWOFF 0x30
#define PA_VERREG 0x32
@@ -233,20 +236,27 @@
pci_nic_init(pci, &nd_table[i], (i==0)? 2<<3: -1, "rtl8139");
/* Todo: register on board registers */
- {
+ if (kernel_filename) {
int kernel_size;
/* initialization which should be done by firmware */
stl_phys(SH7750_BCR1, 1<<3); /* cs3 SDRAM */
stw_phys(SH7750_BCR2, 3<<(3*2)); /* cs3 32bit */
- kernel_size = load_image(kernel_filename, phys_ram_base);
+ if (kernel_cmdline) {
+ kernel_size = load_image_targphys(kernel_filename,
+ SDRAM_BASE + LINUX_LOAD_OFFSET,
+ SDRAM_SIZE - LINUX_LOAD_OFFSET);
+ env->pc = (SDRAM_BASE + LINUX_LOAD_OFFSET) | 0xa0000000;
+ pstrcpy_targphys(SDRAM_BASE + 0x10100, 256, kernel_cmdline);
+ } else {
+ kernel_size = load_image_targphys(kernel_filename, SDRAM_BASE,
SDRAM_SIZE);
+ env->pc = SDRAM_BASE | 0xa0000000; /* Start from P2 area */
+ }
if (kernel_size < 0) {
fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename);
exit(1);
}
-
- env->pc = SDRAM_BASE | 0xa0000000; /* Start from P2 area */
}
}
Modified: branches/stable_0_10/loader.c
===================================================================
--- branches/stable_0_10/loader.c 2009-03-30 17:51:29 UTC (rev 6959)
+++ branches/stable_0_10/loader.c 2009-03-31 05:55:16 UTC (rev 6960)
@@ -90,11 +90,12 @@
while (nbytes) {
want = nbytes > sizeof(buf) ? sizeof(buf) : nbytes;
did = fread(buf, 1, want, f);
- if (did != want) break;
cpu_physical_memory_write_rom(dst_addr, buf, did);
dst_addr += did;
nbytes -= did;
+ if (did != want)
+ break;
}
return dst_addr - dst_begin;
}
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