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This commit is contained in:
Marvin
2026-08-11 17:48:20 +02:00
committed by Marvin Friedrich
parent cf33867e68
commit 0e2d4ed8c6
55 changed files with 279 additions and 346 deletions
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kernel/arch/x86_64/usercopy.c
+2 -2
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@@ -11,6 +11,7 @@ static const struct usercopy_region read_region = {
.fault_ip = x86_64_read_fault,
};
[[__naked]]
bool arch_usercopy_read(void* dst, const __user void* src, size_t len, struct usercopy_region** region) {
asm volatile(
"stac\n"
@@ -41,7 +42,6 @@ bool arch_usercopy_read(void* dst, const __user void* src, size_t len, struct us
: "i"(&read_region)
: "memory"
);
return false;
}
extern void x86_64_write_start();
@@ -54,6 +54,7 @@ static const struct usercopy_region write_region = {
.fault_ip = x86_64_write_fault,
};
[[__naked]]
bool arch_usercopy_write(__user void* dst, const void* src, size_t len, struct usercopy_region** region) {
asm volatile(
"stac\n"
@@ -84,7 +85,6 @@ bool arch_usercopy_write(__user void* dst, const void* src, size_t len, struct u
: "i"(&read_region)
: "memory"
);
return false;
}
extern void x86_64_strlen_start();