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Make rsp to be at physical address

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This commit is contained in:
Alex 2023-04-04 21:08:45 +03:00
parent b265b4aced
commit b8186bb3d9
Signed by untrusted user who does not match committer: enderice2
GPG Key ID: EACC3AD603BAB4DD
2 changed files with 24 additions and 17 deletions
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36
Architecture/amd64/Bootstrap/Limine.c
View File

@ -23,13 +23,13 @@
#include "../../../../tools/limine/limine.h"
#include "../../../kernel.h"
void init_limine();
void InitLimine();
static volatile struct limine_entry_point_request EntryPointRequest = {
.id = LIMINE_ENTRY_POINT_REQUEST,
.revision = 0,
.response = NULL,
.entry = init_limine};
.entry = InitLimine};
static volatile struct limine_bootloader_info_request BootloaderInfoRequest = {
.id = LIMINE_BOOTLOADER_INFO_REQUEST,
.revision = 0};
@ -54,12 +54,24 @@ static volatile struct limine_kernel_file_request KernelFileRequest = {
static volatile struct limine_module_request ModuleRequest = {
.id = LIMINE_MODULE_REQUEST,
.revision = 0};
static volatile struct limine_smbios_request SmbiosRequest = {
.id = LIMINE_SMBIOS_REQUEST,
.revision = 0};
SafeFunction NIF void init_limine()
void *TempStackPtr = NULL;
__naked __used __no_stack_protector void InitLimine()
{
asmv("mov %%rsp, %0"
: "=r"(TempStackPtr));
asmv("mov %0, %%rsp"
:
: "r"((uintptr_t)TempStackPtr - 0xFFFF800000000000));
asmv("jmp InitLimineAfterStack");
}
SafeFunction NIF void InitLimineAfterStack()
{
struct BootInfo binfo;
struct limine_bootloader_info_response *BootloaderInfoResponse = BootloaderInfoRequest.response;
@ -140,7 +152,7 @@ SafeFunction NIF void init_limine()
{
struct limine_framebuffer *framebuffer = FrameBufferResponse->framebuffers[i];
binfo.Framebuffer[i].Type = RGB;
binfo.Framebuffer[i].BaseAddress = (void *)((uint64_t)framebuffer->address - 0xffff800000000000);
binfo.Framebuffer[i].BaseAddress = (void *)((uint64_t)framebuffer->address - 0xFFFF800000000000);
binfo.Framebuffer[i].Width = (uint32_t)framebuffer->width;
binfo.Framebuffer[i].Height = (uint32_t)framebuffer->height;
binfo.Framebuffer[i].Pitch = (uint32_t)framebuffer->pitch;
@ -156,7 +168,7 @@ SafeFunction NIF void init_limine()
binfo.Framebuffer[i].EDIDSize = framebuffer->edid_size;
debug("Framebuffer %d: %dx%d %d bpp", i, framebuffer->width, framebuffer->height, framebuffer->bpp);
debug("More info:\nAddress: %p\nPitch: %ld\nMemoryModel: %d\nRedMaskSize: %d\nRedMaskShift: %d\nGreenMaskSize: %d\nGreenMaskShift: %d\nBlueMaskSize: %d\nBlueMaskShift: %d\nEDID: %p\nEDIDSize: %d",
(uint64_t)framebuffer->address - 0xffff800000000000, framebuffer->pitch, framebuffer->memory_model, framebuffer->red_mask_size, framebuffer->red_mask_shift, framebuffer->green_mask_size, framebuffer->green_mask_shift, framebuffer->blue_mask_size, framebuffer->blue_mask_shift, framebuffer->edid, framebuffer->edid_size);
(uint64_t)framebuffer->address - 0xFFFF800000000000, framebuffer->pitch, framebuffer->memory_model, framebuffer->red_mask_size, framebuffer->red_mask_shift, framebuffer->green_mask_size, framebuffer->green_mask_shift, framebuffer->blue_mask_size, framebuffer->blue_mask_shift, framebuffer->edid, framebuffer->edid_size);
}
binfo.Memory.Entries = MemmapResponse->entry_count;
@ -228,7 +240,7 @@ SafeFunction NIF void init_limine()
break;
}
binfo.Modules[i].Address = (void *)((uint64_t)ModuleResponse->modules[i]->address - 0xffff800000000000);
binfo.Modules[i].Address = (void *)((uint64_t)ModuleResponse->modules[i]->address - 0xFFFF800000000000);
strncpy(binfo.Modules[i].Path,
ModuleResponse->modules[i]->path,
strlen(ModuleResponse->modules[i]->path) + 1);
@ -237,25 +249,25 @@ SafeFunction NIF void init_limine()
strlen(ModuleResponse->modules[i]->cmdline) + 1);
binfo.Modules[i].Size = ModuleResponse->modules[i]->size;
debug("Module %d:\nAddress: %p\nPath: %s\nCommand Line: %s\nSize: %ld", i,
(uint64_t)ModuleResponse->modules[i]->address - 0xffff800000000000, ModuleResponse->modules[i]->path,
(uint64_t)ModuleResponse->modules[i]->address - 0xFFFF800000000000, ModuleResponse->modules[i]->path,
ModuleResponse->modules[i]->cmdline, ModuleResponse->modules[i]->size);
}
binfo.RSDP = (struct RSDPInfo *)((uint64_t)RsdpResponse->address - 0xffff800000000000);
binfo.RSDP = (struct RSDPInfo *)((uint64_t)RsdpResponse->address - 0xFFFF800000000000);
trace("RSDP: %p(%p) [Signature: %.8s] [OEM: %.6s]",
RsdpResponse->address, binfo.RSDP, binfo.RSDP->Signature, binfo.RSDP->OEMID);
debug("SMBIOS: %p %p", SmbiosResponse->entry_32, SmbiosResponse->entry_64);
if (SmbiosResponse->entry_32 != NULL)
binfo.SMBIOSPtr = (void *)((uint64_t)SmbiosResponse->entry_32 - 0xffff800000000000);
binfo.SMBIOSPtr = (void *)((uint64_t)SmbiosResponse->entry_32 - 0xFFFF800000000000);
else if (SmbiosResponse->entry_64 != NULL)
binfo.SMBIOSPtr = (void *)((uint64_t)SmbiosResponse->entry_64 - 0xffff800000000000);
binfo.SMBIOSPtr = (void *)((uint64_t)SmbiosResponse->entry_64 - 0xFFFF800000000000);
else
binfo.SMBIOSPtr = NULL;
binfo.Kernel.PhysicalBase = (void *)KernelAddressResponse->physical_base;
binfo.Kernel.VirtualBase = (void *)KernelAddressResponse->virtual_base;
binfo.Kernel.FileBase = (void *)((uint64_t)KernelFileResponse->kernel_file->address - 0xffff800000000000);
binfo.Kernel.FileBase = (void *)((uint64_t)KernelFileResponse->kernel_file->address - 0xFFFF800000000000);
strncpy(binfo.Kernel.CommandLine,
KernelFileResponse->kernel_file->cmdline,
strlen(KernelFileResponse->kernel_file->cmdline) + 1);

5
Core/Memory/Memory.cpp
View File

@ -82,14 +82,9 @@ NIF void MapFromZero(PageTable4 *PT, BootInfo *Info)
void *NullAddress = KernelAllocator.RequestPage();
memset(NullAddress, 0, PAGE_SIZE); // TODO: If the CPU instruction pointer hits this page, there should be function to handle it. (memcpy assembly code?)
va.Map((void *)0, (void *)NullAddress, PTFlag::RW | PTFlag::US);
uintptr_t VirtualOffsetNormalVMA = NORMAL_VMA_OFFSET;
size_t MemSize = Info->Memory.Size;
for (size_t t = 0; t < MemSize; t += PAGE_SIZE)
{
va.Map((void *)t, (void *)t, PTFlag::RW /* | PTFlag::US */);
va.Map((void *)VirtualOffsetNormalVMA, (void *)t, PTFlag::RW /* | PTFlag::US */);
VirtualOffsetNormalVMA += PAGE_SIZE;
}
}
else
{