david.venhoff/QEMU-Nyx-fork
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

error checking on payload remap + other

Browse Source
This commit is contained in:
Steffen Schulz 2021-08-01 00:40:19 +00:00
parent f32d1cb3b7
commit 6b008a1be4
2 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
nyx/memory_access.c
View File

@ -216,8 +216,14 @@ bool remap_slot(uint64_t addr, uint32_t slot, CPUState *cpu, int fd, uint64_t sh
QLIST_FOREACH_RCU(block, &ram_list.blocks, next) {
if(!memcmp(block->idstr, "pc.ram", 6)){
/* TODO: put assert calls here */
munmap((void*)(((uint64_t)block->host) + phys_addr), x86_64_PAGE_SIZE);
mmap((void*)(((uint64_t)block->host) + phys_addr), 0x1000, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, fd, (i*x86_64_PAGE_SIZE));
if (munmap((void*)(((uint64_t)block->host) + phys_addr), x86_64_PAGE_SIZE) == -1) {
fprintf(stderr, "%s: munmap failed!\n", __func__);
assert(false);
}
if (mmap((void*)(((uint64_t)block->host) + phys_addr), 0x1000, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, fd, (i*x86_64_PAGE_SIZE)) == MAP_FAILED) {
fprintf(stderr, "%s: mmap failed!\n", __func__);
assert(false);
}
//printf("MMUNMAP: %d\n", munmap((void*)(((uint64_t)block->host) + phys_addr), x86_64_PAGE_SIZE));
//printf("MMAP: %p\n", mmap((void*)(((uint64_t)block->host) + phys_addr), 0x1000, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, fd, (i*x86_64_PAGE_SIZE)));
@ -286,6 +292,7 @@ void resize_shared_memory(uint32_t new_size, uint32_t* shm_size, void** shm_ptr,
bool remap_payload_buffer(uint64_t virt_guest_addr, CPUState *cpu){
assert(GET_GLOBAL_STATE()->shared_payload_buffer_fd && GET_GLOBAL_STATE()->shared_payload_buffer_size);
assert(GET_GLOBAL_STATE()->shared_payload_buffer_size % x86_64_PAGE_SIZE == 0);
RAMBlock *block;
refresh_kvm_non_dirty(cpu);

2
nyx/pt.c
View File

@ -185,7 +185,7 @@ void pt_dump(CPUState *cpu, int bytes){
GET_GLOBAL_STATE()->decoder_page_fault_addr = libxdc_get_page_fault_addr(GET_GLOBAL_STATE()->decoder);
break;
case decoder_unkown_packet:
fprintf(stderr, "WARNING: libxdc_decode returned decoder_error\n");
fprintf(stderr, "WARNING: libxdc_decode returned unknown_packet\n");
break;
case decoder_error:
fprintf(stderr, "WARNING: libxdc_decode returned decoder_error\n");