Fennix/Kernel
1
0
Fork 0
mirror of https://github.com/Fennix-Project/Kernel.git synced 2025-07-11 15:29:18 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Implemented CPU::Vendor, CPU::Name & CPU::Hypervisor but not tested enough

Browse Source
This commit is contained in:
Alex
2022-10-10 07:02:44 +03:00
parent 2bf2bf3280
commit 90774d68e0
2 changed files with 115 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

84
arch/CPU.cpp
View File

@ -3,6 +3,72 @@
namespace CPU
{
char *Vendor()
{
static char Vendor[16];
#if defined(__amd64__)
asmv("cpuid"
: "=a"(Vendor[0]), "=b"(Vendor[4]), "=c"(Vendor[8]), "=d"(Vendor[12])
: "a"(0));
#elif defined(__i386__)
asmv("cpuid"
: "=a"(Vendor[0]), "=b"(Vendor[4]), "=c"(Vendor[8]), "=d"(Vendor[12])
: "a"(0));
#elif defined(__aarch64__)
asmv("mrs %0, MIDR_EL1"
: "=r"(Vendor[0]));
#endif
return Vendor;
}
char *Name()
{
static char Name[48];
#if defined(__amd64__)
asmv("cpuid"
: "=a"(Name[0]), "=b"(Name[4]), "=c"(Name[8]), "=d"(Name[12])
: "a"(0x80000002));
asmv("cpuid"
: "=a"(Name[16]), "=b"(Name[20]), "=c"(Name[24]), "=d"(Name[28])
: "a"(0x80000003));
asmv("cpuid"
: "=a"(Name[32]), "=b"(Name[36]), "=c"(Name[40]), "=d"(Name[44])
: "a"(0x80000004));
#elif defined(__i386__)
asmv("cpuid"
: "=a"(Name[0]), "=b"(Name[4]), "=c"(Name[8]), "=d"(Name[12])
: "a"(0x80000002));
asmv("cpuid"
: "=a"(Name[16]), "=b"(Name[20]), "=c"(Name[24]), "=d"(Name[28])
: "a"(0x80000003));
asmv("cpuid"
: "=a"(Name[32]), "=b"(Name[36]), "=c"(Name[40]), "=d"(Name[44])
: "a"(0x80000004));
#elif defined(__aarch64__)
asmv("mrs %0, MIDR_EL1"
: "=r"(Name[0]));
#endif
return Name;
}
char *Hypervisor()
{
static char Hypervisor[16];
#if defined(__amd64__)
asmv("cpuid"
: "=a"(Hypervisor[0]), "=b"(Hypervisor[4]), "=c"(Hypervisor[8]), "=d"(Hypervisor[12])
: "a"(0x40000000));
#elif defined(__i386__)
asmv("cpuid"
: "=a"(Hypervisor[0]), "=b"(Hypervisor[4]), "=c"(Hypervisor[8]), "=d"(Hypervisor[12])
: "a"(0x40000000));
#elif defined(__aarch64__)
asmv("mrs %0, MIDR_EL1"
: "=r"(Hypervisor[0]));
#endif
return Hypervisor;
}
void Pause()
{
#if defined(__amd64__) || defined(__i386__)
@ -27,12 +93,18 @@ namespace CPU
{
case Check:
{
#if defined(__amd64__) || defined(__i386__)
#if defined(__amd64__)
uint64_t rflags;
asmv("pushfq");
asmv("popq %0"
: "=r"(rflags));
return rflags & (1 << 9);
#elif defined(__i386__)
uint32_t rflags;
asmv("pushfl");
asmv("popl %0"
: "=r"(rflags));
return rflags & (1 << 9);
#elif defined(__aarch64__)
uint64_t daif;
asmv("mrs %0, daif"
@ -64,7 +136,7 @@ namespace CPU
void *PageTable(void *PT)
{
#if defined(__amd64__) || defined(__i386__)
#if defined(__amd64__)
if (PT)
asmv("movq %0, %%cr3"
:
@ -72,6 +144,14 @@ namespace CPU
else
asmv("movq %%cr3, %0"
: "=r"(PT));
#elif defined(__i386__)
if (PT)
asmv("movl %0, %%cr3"
:
: "r"(PT));
else
asmv("movl %%cr3, %0"
: "=r"(PT));
#elif defined(__aarch64__)
if (PT)
asmv("msr ttbr0_el1, %0"