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HV: refine sw_linux struct

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The guest OS of ACRN will not be limited to Linux, so refine the struct
of sw_linux to more generic sw_module_info. Currently bootargs and ramdisk
are only supported modules but we can include more modules in future;

Tracked-On: #3214

Signed-off-by: Victor Sun <victor.sun@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
This commit is contained in:
Victor Sun
2019-05-21 11:54:15 +08:00
committed by wenlingz
parent 475b05da54
commit 0f00a4b0da
3 changed files with 43 additions and 46 deletions
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34
hypervisor/common/vm_load.c
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@@ -53,13 +53,14 @@ static uint32_t create_zeropage_e820(struct zero_page *zp, const struct acrn_vm
static uint64_t create_zero_page(struct acrn_vm *vm)
{
struct zero_page *zeropage;
struct sw_linux *linux_info = &(vm->sw.linux_info);
struct sw_kernel_info *sw_kernel = &(vm->sw.kernel_info);
struct sw_module_info *bootargs_info = &(vm->sw.bootargs_info);
struct sw_module_info *ramdisk_info = &(vm->sw.ramdisk_info);
struct zero_page *hva;
uint64_t gpa, addr;
/* Set zeropage in Linux Guest RAM region just past boot args */
gpa = (uint64_t)linux_info->bootargs_load_addr + MEM_4K;
gpa = (uint64_t)bootargs_info->load_addr + MEM_4K;
hva = (struct zero_page *)gpa2hva(vm, gpa);
zeropage = hva;
@@ -73,16 +74,16 @@ static uint64_t create_zero_page(struct acrn_vm *vm)
&(hva->hdr), sizeof(hva->hdr));
/* See if kernel has a RAM disk */
if (linux_info->ramdisk_src_addr != NULL) {
if (ramdisk_info->src_addr != NULL) {
/* Copy ramdisk load_addr and size in zeropage header structure
*/
addr = (uint64_t)linux_info->ramdisk_load_addr;
addr = (uint64_t)ramdisk_info->load_addr;
zeropage->hdr.ramdisk_addr = (uint32_t)addr;
zeropage->hdr.ramdisk_size = (uint32_t)linux_info->ramdisk_size;
zeropage->hdr.ramdisk_size = (uint32_t)ramdisk_info->size;
}
/* Copy bootargs load_addr in zeropage header structure */
addr = (uint64_t)linux_info->bootargs_load_addr;
addr = (uint64_t)bootargs_info->load_addr;
zeropage->hdr.bootargs_addr = (uint32_t)addr;
/* set constant arguments in zero page */
@@ -103,8 +104,9 @@ int32_t direct_boot_sw_loader(struct acrn_vm *vm)
char dyn_bootargs[100] = {0};
uint32_t kernel_entry_offset;
struct zero_page *zeropage;
struct sw_linux *linux_info = &(vm->sw.linux_info);
struct sw_kernel_info *sw_kernel = &(vm->sw.kernel_info);
struct sw_module_info *bootargs_info = &(vm->sw.bootargs_info);
struct sw_module_info *ramdisk_info = &(vm->sw.ramdisk_info);
/* get primary vcpu */
struct acrn_vcpu *vcpu = vcpu_from_vid(vm, BOOT_CPU_ID);
const struct acrn_vm_config *vm_config = get_vm_config(vm->vm_id);
@@ -147,9 +149,9 @@ int32_t direct_boot_sw_loader(struct acrn_vm *vm)
}
/* Copy Guest OS bootargs to its load location */
(void)copy_to_gpa(vm, linux_info->bootargs_src_addr,
(uint64_t)linux_info->bootargs_load_addr,
(strnlen_s((char *)linux_info->bootargs_src_addr, MAX_BOOTARGS_SIZE) + 1U));
(void)copy_to_gpa(vm, bootargs_info->src_addr,
(uint64_t)bootargs_info->load_addr,
(strnlen_s((char *)bootargs_info->src_addr, MAX_BOOTARGS_SIZE) + 1U));
/* add "hugepagesz=1G hugepages=x" to cmdline for 1G hugepage
* reserving. Current strategy is "total_mem_size in Giga -
@@ -161,18 +163,18 @@ int32_t direct_boot_sw_loader(struct acrn_vm *vm)
reserving_1g_pages = (vm_config->memory.size >> 30U) - NUM_REMAIN_1G_PAGES;
if (reserving_1g_pages > 0) {
snprintf(dyn_bootargs, 100U, " hugepagesz=1G hugepages=%lld", reserving_1g_pages);
(void)copy_to_gpa(vm, dyn_bootargs, ((uint64_t)linux_info->bootargs_load_addr
+ linux_info->bootargs_size),
(void)copy_to_gpa(vm, dyn_bootargs, ((uint64_t)bootargs_info->load_addr
+ bootargs_info->size),
(strnlen_s(dyn_bootargs, 99U) + 1U));
}
}
/* Check if a RAM disk is present with Linux guest */
if (linux_info->ramdisk_src_addr != NULL) {
if (ramdisk_info->src_addr != NULL) {
/* Copy RAM disk to its load location */
(void)copy_to_gpa(vm, linux_info->ramdisk_src_addr,
(uint64_t)linux_info->ramdisk_load_addr,
linux_info->ramdisk_size);
(void)copy_to_gpa(vm, ramdisk_info->src_addr,
(uint64_t)ramdisk_info->load_addr,
ramdisk_info->size);
}
/* Create Zeropage and copy Physical Base Address of Zeropage