From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 26575BA3E for ; Tue, 7 Mar 2023 17:49:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 81A7DC433EF; Tue, 7 Mar 2023 17:49:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1678211374; bh=ybwUmn4F15p2eLwNeR7IdyjQdQODVoCYoekGAy1XjwM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bejhNWtk5nPQGqSu+46wLq6ti+/bEqH7zW5FA0TviVe8IDR94Ma4yUIFWz53jeQlQ NLXwUodXOnqiZ9ZQ7DyZUIfDDkrmkxXY/dnBXzLw4ydzFzbiEdR89Hx3YRrT2ZPXtB Ca89azmeyZzNak/jsQImbjn7D0ClH6uCwTZDGS20= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, "Borislav Petkov (AMD)" Subject: [PATCH 6.2 0842/1001] x86/microcode/amd: Remove load_microcode_amd()s bsp parameter Date: Tue, 7 Mar 2023 18:00:14 +0100 Message-Id: <20230307170058.335720945@linuxfoundation.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230307170022.094103862@linuxfoundation.org> References: <20230307170022.094103862@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Borislav Petkov (AMD) commit 2355370cd941cbb20882cc3f34460f9f2b8f9a18 upstream. It is always the BSP. No functional changes. Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/r/20230130161709.11615-2-bp@alien8.de Signed-off-by: Greg Kroah-Hartman --- arch/x86/kernel/cpu/microcode/amd.c | 19 ++++--------------- 1 file changed, 4 insertions(+), 15 deletions(-) --- a/arch/x86/kernel/cpu/microcode/amd.c +++ b/arch/x86/kernel/cpu/microcode/amd.c @@ -553,8 +553,7 @@ 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) { @@ -572,7 +571,7 @@ 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; @@ -850,8 +849,7 @@ 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; @@ -875,10 +873,6 @@ 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)); @@ -905,14 +899,9 @@ 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 (!bsp) - return UCODE_OK; - if (c->x86 >= 0x15) snprintf(fw_name, sizeof(fw_name), "amd-ucode/microcode_amd_fam%.2xh.bin", c->x86); @@ -925,7 +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);