Bananymous
/
banan-os
1
1
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Kernel: Clobber flags in `rdrand`

This commit is contained in:
Bananymous 2025-07-18 19:36:37 +03:00
parent 7af6e1cd34
commit 5df6270e32
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
kernel/kernel/Random.cpp
View File

@ -21,13 +21,14 @@ namespace Kernel
if (ecx & CPUID::ECX_RDRND)
{
#if ARCH(x86_64)
asm volatile("rdrand %0" : "=r"(s_rand_seed));
asm volatile("rdrand %0" : "=r"(s_rand_seed) :: "flags");
#elif ARCH(i686)
uint32_t lo, hi;
asm volatile(
"rdrand %[lo];"
"rdrand %[hi];"
: [lo]"=r"(lo), [hi]"=r"(hi)
:: "flags"
);
s_rand_seed = ((uint64_t)hi << 32) | lo;
#else