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feat: exhaustive STUB instrumentation - 241 panic sites across VMM/kernel + whitelist alignment

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- VMM cluster: XJ3-E/LIN-E/VMM-E/VMX-E/EPT-E/IPC-E/VVB-E (124 sites)

- kernel cluster: TST-E/MM-E/UTRW-E/LAPIC-E/IDT-E/SAS-E/PRB-E/NETST-E/DKM-E (117 sites)

- whitelist fixes: vmm_init env probes E10-E14 fallback, disk_log read-only block path, DSL-E05 non-FAT32 device 0 probe

- QEMU smoke: wizard -> USER.CONF -> login -> desktop ready, zero spurious panic
This commit is contained in:
Linehu
2026-10-03 21:26:04 +08:00
parent 506d1b18c6
commit 174af71b39
62 changed files with 667 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files
CODE/UTSM/dkm/boot_modules.c
+30 -1
View File
@@ -1,7 +1,8 @@
#include <utsm/dkm.h>
#include <utsm/dkm.h>
#include <utsm/log.h>
#include <utsm/types.h>
#include <utsm/arena.h>
#include <utsm/panic.h>
#include "../arch/x86_64/limine.h"
#define ELF_MAGIC0 0x7f
@@ -178,10 +179,14 @@ int dkm_scan_symbols(const void *address, u64 size, struct dkm_symbol_scan *out)
if (ehdr->shoff == 0 || ehdr->shnum == 0 || ehdr->shentsize < sizeof(elf64_shdr)) {
log_error("[DKM] ELF has no section table");
panic_full("DKM-E30 ELF NO SECTION TABLE",
"dkm_scan_symbols: driver ELF has no section table", 0);
return -1;
}
if (!range_ok(ehdr->shoff, (u64)ehdr->shnum * ehdr->shentsize, size)) {
log_error("[DKM] ELF section table out of range");
panic_full("DKM-E31 ELF SECTION TABLE OUT OF RANGE",
"dkm_scan_symbols: section table out of file range", 0);
return -1;
}
@@ -202,10 +207,14 @@ int dkm_scan_symbols(const void *address, u64 size, struct dkm_symbol_scan *out)
if (!symtab || !strtab || strtab->type != SHT_STRTAB) {
log_error("[DKM] missing symtab/strtab");
panic_full("DKM-E32 ELF MISSING SYMTAB",
"dkm_scan_symbols: symtab/strtab missing or invalid", 0);
return -1;
}
if (symtab->entsize < sizeof(elf64_sym) || !range_ok(symtab->offset, symtab->size, size) || !range_ok(strtab->offset, strtab->size, size)) {
log_error("[DKM] invalid symtab/strtab range");
panic_full("DKM-E33 ELF SYMTAB RANGE INVALID",
"dkm_scan_symbols: symtab/strtab out of file range", 0);
return -1;
}
@@ -241,6 +250,8 @@ int dkm_scan_symbols(const void *address, u64 size, struct dkm_symbol_scan *out)
return 0;
}
log_error("[DKM] required driver symbols missing");
panic_full("DKM-E34 REQUIRED DRIVER SYMBOLS MISSING",
"dkm_scan_symbols: driver_desc/init/exit symbol missing", 0);
return -1;
}
@@ -271,12 +282,16 @@ int dkm_load_elf_rel(const void *address, u64 size, const struct dkm_symbol_scan
if (total_size == 0) {
log_error("[DKM] no allocatable sections");
panic_full("DKM-E35 ELF NO ALLOC SECTIONS",
"dkm_load_elf_rel: no allocatable sections", 0);
return -1;
}
u8 *image = (u8 *)kmem_alloc_aligned(total_size, max_align);
if (!image) {
log_error("[DKM] failed to allocate module memory");
panic_full("DKM-E36 MODULE MEM ALLOC FAILED",
"dkm_load_elf_rel: module memory allocation failed", 0);
return -1;
}
memset(image, 0, total_size);
@@ -353,6 +368,8 @@ int dkm_load_elf_rel(const void *address, u64 size, const struct dkm_symbol_scan
} else {
log_error("[DKM] unsupported relocation type");
log_hex64("[DKM] reloc type=", (u64)reloc_type);
panic_full("DKM-E37 UNSUPPORTED RELOCATION",
"dkm_load_elf_rel: unsupported relocation type", 0);
return -1;
}
@@ -373,6 +390,8 @@ int dkm_load_elf_rel(const void *address, u64 size, const struct dkm_symbol_scan
const dkm_driver_desc *desc = (const dkm_driver_desc *)(image + image_offset[desc_sym->shndx] + desc_sym->value);
if (desc->magic != DKM_DRIVER_MAGIC) {
log_error("[DKM] external driver_desc magic mismatch");
panic_full("DKM-E38 DRIVER DESC MAGIC MISMATCH",
"dkm_load_elf_rel: external driver_desc magic mismatch", 0);
return -1;
}
@@ -397,6 +416,8 @@ int dkm_load_elf_rel(const void *address, u64 size, const struct dkm_symbol_scan
if (result != 0) {
handle.state = DKM_STATE_FAILED;
log_error("[DKM] external driver init failed");
panic_full("DKM-E39 EXTERNAL DRIVER INIT FAILED",
"dkm_load_elf_rel: external driver_init returned non-zero", 0);
return result;
}
handle.state = DKM_STATE_ACTIVE;
@@ -408,6 +429,8 @@ void dkm_scan_boot_modules(void) {
struct limine_module_response *response = g_module_request.response;
if (!response) {
log_warn("[DKM] no Limine module response");
panic_full("DKM-E40 NO LIMINE MODULE RESPONSE",
"dkm_scan_boot_modules: no Limine module response", 0);
return;
}
@@ -418,6 +441,8 @@ void dkm_scan_boot_modules(void) {
struct limine_file *file = response->modules[i];
if (!file) {
log_warn("[DKM] null module entry");
panic_full("DKM-E41 NULL MODULE ENTRY",
"dkm_scan_boot_modules: null boot module entry", 0);
continue;
}
@@ -439,11 +464,15 @@ void dkm_scan_boot_modules(void) {
int load_result = dkm_load_elf_rel(file->address, file->size, &symbols);
if (load_result != 0) {
log_error("[DKM] external driver load failed");
panic_full("DKM-E42 EXTERNAL DRIVER LOAD FAILED",
"dkm_scan_boot_modules: external driver load failed", 0);
}
}
} else {
log_error("[DKM] module ELF64 rejected");
log_hex64("[DKM] elf status=", (u64)(i64)status);
panic_full("DKM-E43 MODULE ELF64 REJECTED",
"dkm_scan_boot_modules: boot module ELF64 check rejected", 0);
}
}