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Kernel: Unify x86-64 assembly snippets naming for RDSEED & RDRAND

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konrad 2023-01-08 05:26:46 +01:00 committed by Jelle Raaijmakers
parent d7d233ab04
commit 7c8e61f4d1
Notes: sideshowbarker 2024-07-19 16:57:52 +09:00 
Author: https://github.com/konradekk
Commit: https://github.com/SerenityOS/serenity/commit/7c8e61f4d14
Pull-request: https://github.com/SerenityOS/serenity/pull/17087
Reviewed-by: https://github.com/FireFox317
3 changed files with 6 additions and 6 deletions
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4
Kernel/Arch/x86_64/ASM_wrapper.h
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@ -128,7 +128,7 @@ ALWAYS_INLINE u64 read_tsc()
return ((u64)msw << 32) | lsw;
}
ALWAYS_INLINE u32 rdrand()
ALWAYS_INLINE u32 read_rdrand()
{
u32 value;
asm volatile(
@ -139,7 +139,7 @@ ALWAYS_INLINE u32 rdrand()
return value;
}
ALWAYS_INLINE u32 rdseed()
ALWAYS_INLINE u32 read_rdseed()
{
u32 value;
asm volatile(

4
Kernel/Prekernel/init.cpp
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@ -238,11 +238,11 @@ u64 generate_secure_seed()
seed ^= read_tsc();
if (processor_info.ecx() & (1 << 30)) // RDRAND
seed ^= rdrand();
seed ^= read_rdrand();
CPUID extended_features(0x7);
if (extended_features.ebx() & (1 << 18)) // RDSEED
seed ^= rdseed();
seed ^= read_rdseed();
#else
# warning No native randomness source available for this architecture
#endif

4
Kernel/Random.cpp
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@ -33,13 +33,13 @@ UNMAP_AFTER_INIT KernelRng::KernelRng()
dmesgln("KernelRng: Using RDSEED as entropy source");
for (size_t i = 0; i < pool_count * reseed_threshold; ++i) {
add_random_event(Kernel::rdseed(), i % 32);
add_random_event(Kernel::read_rdseed(), i % 32);
}
} else if (Processor::current().has_feature(CPUFeature::RDRAND)) {
dmesgln("KernelRng: Using RDRAND as entropy source");
for (size_t i = 0; i < pool_count * reseed_threshold; ++i) {
add_random_event(Kernel::rdrand(), i % 32);
add_random_event(Kernel::read_rdrand(), i % 32);
}
} else if (TimeManagement::the().can_query_precise_time()) {
// Add HPET as entropy source if we don't have anything better.