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hv: Partition mode ACRN -kernel load and bootargs load address

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For Partition mode ACRN, kernel load address and Boot args load address
are hardcoded. Boot args are currently passed from vm description for
each VM. Renamed init_vm0_boot_info to init_vm_boot_info.

Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
This commit is contained in:
Sainath Grandhi
2018-08-10 10:45:59 -07:00
committed by lijinxia
parent 4e99afcc2f
commit 9e02ef54c7
3 changed files with 55 additions and 4 deletions
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50
hypervisor/boot/sbl/multiboot.c
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@@ -186,6 +186,53 @@ fail:
return NULL;
}
#ifdef CONFIG_PARTITION_MODE
int init_vm_boot_info(struct vm *vm)
{
struct multiboot_module *mods = NULL;
struct multiboot_info *mbi = NULL;
if (boot_regs[0] != MULTIBOOT_INFO_MAGIC) {
ASSERT(false, "no multiboot info found");
return -EINVAL;
}
mbi = HPA2HVA((uint64_t)boot_regs[1]);
dev_dbg(ACRN_DBG_BOOT, "Multiboot detected, flag=0x%x", mbi->mi_flags);
if ((mbi->mi_flags & MULTIBOOT_INFO_HAS_MODS) == 0U) {
ASSERT(false, "no kernel info found");
return -EINVAL;
}
dev_dbg(ACRN_DBG_BOOT, "mod counts=%d\n", mbi->mi_mods_count);
/* mod[0] is for kernel&cmdline, other mod for ramdisk/firmware info*/
mods = (struct multiboot_module *)(uint64_t)mbi->mi_mods_addr;
dev_dbg(ACRN_DBG_BOOT, "mod0 start=0x%x, end=0x%x",
mods[0].mm_mod_start, mods[0].mm_mod_end);
dev_dbg(ACRN_DBG_BOOT, "cmd addr=0x%x, str=%s", mods[0].mm_string,
(char *) (uint64_t)mods[0].mm_string);
vm->sw.kernel_type = VM_LINUX_GUEST;
vm->sw.kernel_info.kernel_src_addr =
HPA2HVA((uint64_t)mods[0].mm_mod_start);
vm->sw.kernel_info.kernel_size =
mods[0].mm_mod_end - mods[0].mm_mod_start;
vm->sw.kernel_info.kernel_load_addr = (void *)(16 * 1024 * 1024UL);
vm->sw.linux_info.bootargs_src_addr =
vm->vm_desc->bootargs;
vm->sw.linux_info.bootargs_size =
strnlen_s(vm->vm_desc->bootargs, MEM_2K);
vm->sw.linux_info.bootargs_load_addr = (void *)(vm->vm_desc->mem_size - 8*1024UL);
return 0;
}
#else
/**
* @param[inout] vm pointer to a vm descriptor
*
@@ -195,7 +242,7 @@ fail:
* @pre vm != NULL
* @pre is_vm0(vm) == true
*/
int init_vm0_boot_info(struct vm *vm)
int init_vm_boot_info(struct vm *vm)
{
struct multiboot_module *mods = NULL;
struct multiboot_info *mbi = NULL;
@@ -290,3 +337,4 @@ int init_vm0_boot_info(struct vm *vm)
}
return 0;
}
#endif