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1.0.39 release

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longpanda
2021-03-28 17:18:23 +08:00
parent 58d387f732
commit f4bbec65ba
10 changed files with 148 additions and 12 deletions
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23
IPXE/ipxe_mod_code/ipxe-3fe683e/src/arch/x86/core/ventoy_vdisk.c
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@@ -402,6 +402,19 @@ int ventoy_vdisk_read(struct san_device *sandev, uint64_t lba, unsigned int coun
if (g_hddmode)
{
#if 0
/* need to check ?? */
lastlba = g_chain->virt_img_size_in_bytes / 512;
if (lba < lastlba)
{
if (lba + count > lastlba)
{
count = lastlba - lba;
}
ventoy_vdisk_read_real_hdd(lba, count, buffer);
}
#endif
ventoy_vdisk_read_real_hdd(lba, count, buffer);
ix86->regs.dl = sandev->drive;
return 0;
@@ -435,7 +448,15 @@ int ventoy_vdisk_read(struct san_device *sandev, uint64_t lba, unsigned int coun
}
VirtSec = g_chain->virt_img_size_in_bytes / 2048;
if (lba + count > VirtSec)
if (lba >= VirtSec)
{
/* fix for grub4dos Inconsistent data read from error */
memset((void *)(buffer + (count - 1) * 2048), 0, 2048);
ix86->regs.dl = sandev->drive;
return 0;
}
else if (lba + count > VirtSec)
{
count = VirtSec - lba;
}