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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:11:01 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:11:01 +0000 |
| commit | 0ee2e7d08695233d29d4656e2a74e948f27e8ab5 (patch) | |
| tree | d1becc7d49fc54e54a4f67eb179b096f17c5966b /linux-kernel-patches/09-cfb52a5a09c8ae3a1dafb44ce549fde5b69e8117.patch | |
| parent | Initial commit. (diff) | |
| download | intel-microcode-0ee2e7d08695233d29d4656e2a74e948f27e8ab5.tar.xz intel-microcode-0ee2e7d08695233d29d4656e2a74e948f27e8ab5.zip | |
Adding upstream version 3.20231114.1~deb12u1.upstream/3.20231114.1_deb12u1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'linux-kernel-patches/09-cfb52a5a09c8ae3a1dafb44ce549fde5b69e8117.patch')
| -rw-r--r-- | linux-kernel-patches/09-cfb52a5a09c8ae3a1dafb44ce549fde5b69e8117.patch | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/linux-kernel-patches/09-cfb52a5a09c8ae3a1dafb44ce549fde5b69e8117.patch b/linux-kernel-patches/09-cfb52a5a09c8ae3a1dafb44ce549fde5b69e8117.patch new file mode 100644 index 0000000..0541a2b --- /dev/null +++ b/linux-kernel-patches/09-cfb52a5a09c8ae3a1dafb44ce549fde5b69e8117.patch @@ -0,0 +1,67 @@ +From cfb52a5a09c8ae3a1dafb44ce549fde5b69e8117 Mon Sep 17 00:00:00 2001
+From: Borislav Petkov <bp@suse.de>
+Date: Wed, 28 Feb 2018 11:28:45 +0100
+Subject: x86/microcode: Request microcode on the BSP
+
+... so that any newer version can land in the cache and can later be
+fished out by the application functions. Do that before grabbing the
+hotplug lock.
+
+Signed-off-by: Borislav Petkov <bp@suse.de>
+Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
+Tested-by: Tom Lendacky <thomas.lendacky@amd.com>
+Tested-by: Ashok Raj <ashok.raj@intel.com>
+Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
+Cc: Arjan Van De Ven <arjan.van.de.ven@intel.com>
+Link: https://lkml.kernel.org/r/20180228102846.13447-7-bp@alien8.de
+---
+ arch/x86/kernel/cpu/microcode/core.c | 11 +++++------
+ 1 file changed, 5 insertions(+), 6 deletions(-)
+
+diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c
+index fa32cb3..5dd157d 100644
+--- a/arch/x86/kernel/cpu/microcode/core.c
++++ b/arch/x86/kernel/cpu/microcode/core.c
+@@ -499,15 +499,10 @@ static int check_online_cpus(void)
+ static enum ucode_state reload_for_cpu(int cpu)
+ {
+ struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
+- enum ucode_state ustate;
+
+ if (!uci->valid)
+ return UCODE_OK;
+
+- ustate = microcode_ops->request_microcode_fw(cpu, µcode_pdev->dev, true);
+- if (ustate != UCODE_OK)
+- return ustate;
+-
+ return apply_microcode_on_target(cpu);
+ }
+
+@@ -515,11 +510,11 @@ static ssize_t reload_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+ {
++ int cpu, bsp = boot_cpu_data.cpu_index;
+ enum ucode_state tmp_ret = UCODE_OK;
+ bool do_callback = false;
+ unsigned long val;
+ ssize_t ret = 0;
+- int cpu;
+
+ ret = kstrtoul(buf, 0, &val);
+ if (ret)
+@@ -528,6 +523,10 @@ static ssize_t reload_store(struct device *dev,
+ if (val != 1)
+ return size;
+
++ tmp_ret = microcode_ops->request_microcode_fw(bsp, µcode_pdev->dev, true);
++ if (tmp_ret != UCODE_OK)
++ return size;
++
+ get_online_cpus();
+
+ ret = check_online_cpus();
+--
+cgit v1.1
+
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