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Optimization for Linux vDisk boot in Legacy BIOS mode

This commit is contained in:
longpanda 2020-10-21 17:45:44 +08:00
parent 9ddee7394d
commit 40fdfa66b9
4 changed files with 9 additions and 2 deletions
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2
INSTALL/grub/grub.cfg
View File

@ -1046,7 +1046,7 @@ function vtoyboot_common_func {
if [ -n "$vtoy_chain_mem_addr" ]; then if [ -n "$vtoy_chain_mem_addr" ]; then
if [ "$grub_platform" = "pc" ]; then if [ "$grub_platform" = "pc" ]; then
vt_acpi_param ${vtoy_chain_mem_addr} 512 vt_acpi_param ${vtoy_chain_mem_addr} 512
linux16 $vtoy_path/ipxe.krn ${vtdebug_flag} sector512 mem:${vtoy_chain_mem_addr}:size:${vtoy_chain_mem_size} linux16 $vtoy_path/ipxe.krn ${vtdebug_flag} bios80 sector512 mem:${vtoy_chain_mem_addr}:size:${vtoy_chain_mem_size}
boot boot
else else
ventoy_acpi_param ${vtoy_chain_mem_addr} 512 ventoy_acpi_param ${vtoy_chain_mem_addr} 512

6
IPXE/ipxe_mod_code/ipxe-3fe683e/src/arch/x86/core/ventoy_vdisk.c
View File

@ -26,6 +26,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
int g_debug = 0; int g_debug = 0;
int g_hddmode = 0; int g_hddmode = 0;
int g_bios_disk80 = 0;
char *g_cmdline_copy; char *g_cmdline_copy;
void *g_initrd_addr; void *g_initrd_addr;
size_t g_initrd_len; size_t g_initrd_len;
@ -698,6 +699,11 @@ int ventoy_boot_vdisk(void *data)
g_hddmode = 1; g_hddmode = 1;
} }
if (strstr(g_cmdline_copy, "bios80"))
{
g_bios_disk80 = 1;
}
g_chain = (ventoy_chain_head *)g_initrd_addr; g_chain = (ventoy_chain_head *)g_initrd_addr;
g_chunk = (ventoy_img_chunk *)((char *)g_chain + g_chain->img_chunk_offset); g_chunk = (ventoy_img_chunk *)((char *)g_chain + g_chain->img_chunk_offset);
g_img_chunk_num = g_chain->img_chunk_num; g_img_chunk_num = g_chain->img_chunk_num;

2
IPXE/ipxe_mod_code/ipxe-3fe683e/src/arch/x86/interface/pcbios/ventoy_int13.c
View File

@ -1425,7 +1425,7 @@ unsigned int ventoy_int13_hook (ventoy_chain_head *chain)
if (g_hddmode) if (g_hddmode)
{ {
natural_drive = num_drives | 0x80; natural_drive = g_bios_disk80 ? 0x80 : (num_drives | 0x80);
} }
else else
{ {

1
IPXE/ipxe_mod_code/ipxe-3fe683e/src/include/ventoy.h
View File

@ -187,6 +187,7 @@ typedef struct ventoy_sector_flag
extern int g_debug; extern int g_debug;
extern int g_hddmode; extern int g_hddmode;
extern int g_bios_disk80;
extern char *g_cmdline_copy; extern char *g_cmdline_copy;
extern void *g_initrd_addr; extern void *g_initrd_addr;
extern size_t g_initrd_len; extern size_t g_initrd_len;