From: Borislav Petkov (AMD) <bp@xxxxxxxxx> commit 2355370cd941cbb20882cc3f34460f9f2b8f9a18 upstream. It is always the BSP. No functional changes. Signed-off-by: Borislav Petkov (AMD) <bp@xxxxxxxxx> Link: https://lore.kernel.org/r/20230130161709.11615-2-bp@xxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/x86/kernel/cpu/microcode/amd.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) --- a/arch/x86/kernel/cpu/microcode/amd.c +++ b/arch/x86/kernel/cpu/microcode/amd.c @@ -548,8 +548,7 @@ void load_ucode_amd_ap(unsigned int cpui apply_microcode_early_amd(cpuid_1_eax, cp.data, cp.size, false); } -static enum ucode_state -load_microcode_amd(bool save, u8 family, const u8 *data, size_t size); +static enum ucode_state load_microcode_amd(u8 family, const u8 *data, size_t size); int __init save_microcode_in_initrd_amd(unsigned int cpuid_1_eax) { @@ -567,7 +566,7 @@ int __init save_microcode_in_initrd_amd( if (!desc.mc) return -EINVAL; - ret = load_microcode_amd(true, x86_family(cpuid_1_eax), desc.data, desc.size); + ret = load_microcode_amd(x86_family(cpuid_1_eax), desc.data, desc.size); if (ret > UCODE_UPDATED) return -EINVAL; @@ -845,8 +844,7 @@ static enum ucode_state __load_microcode return UCODE_OK; } -static enum ucode_state -load_microcode_amd(bool save, u8 family, const u8 *data, size_t size) +static enum ucode_state load_microcode_amd(u8 family, const u8 *data, size_t size) { struct ucode_patch *p; enum ucode_state ret; @@ -870,10 +868,6 @@ load_microcode_amd(bool save, u8 family, ret = UCODE_NEW; } - /* save BSP's matching patch for early load */ - if (!save) - return ret; - memset(amd_ucode_patch, 0, PATCH_MAX_SIZE); memcpy(amd_ucode_patch, p->data, min_t(u32, p->size, PATCH_MAX_SIZE)); @@ -901,12 +895,11 @@ static enum ucode_state request_microcod { char fw_name[36] = "amd-ucode/microcode_amd.bin"; struct cpuinfo_x86 *c = &cpu_data(cpu); - bool bsp = c->cpu_index == boot_cpu_data.cpu_index; enum ucode_state ret = UCODE_NFOUND; const struct firmware *fw; /* reload ucode container only on the boot cpu */ - if (!refresh_fw || !bsp) + if (!refresh_fw) return UCODE_OK; if (c->x86 >= 0x15) @@ -921,7 +914,7 @@ static enum ucode_state request_microcod if (!verify_container(fw->data, fw->size, false)) goto fw_release; - ret = load_microcode_amd(bsp, c->x86, fw->data, fw->size); + ret = load_microcode_amd(c->x86, fw->data, fw->size); fw_release: release_firmware(fw);
