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| author | Borislav Petkov <borislav.petkov@amd.com> | 2012-07-26 15:51:00 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-08-22 16:15:58 -0700 |
| commit | 48e30685caa8bdc4b8d4417d8ac31db59689742c (patch) | |
| tree | 277f6c607f28892514e87c0dc25dc330eea6621a | |
| parent | 5f5b747282c6cc57b91baba37f76de27398b9e60 (diff) | |
| download | op-kernel-dev-48e30685caa8bdc4b8d4417d8ac31db59689742c.zip op-kernel-dev-48e30685caa8bdc4b8d4417d8ac31db59689742c.tar.gz | |
x86, microcode: Add a refresh firmware flag to ->request_microcode_fw
This is done in preparation for teaching the ucode driver to either load
a new ucode patches container from userspace or use an already cached
version. No functionality change in this patch.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Link: http://lkml.kernel.org/r/1344361461-10076-10-git-send-email-bp@amd64.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| -rw-r--r-- | arch/x86/include/asm/microcode.h | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/microcode_amd.c | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/microcode_core.c | 11 | ||||
| -rw-r--r-- | arch/x86/kernel/microcode_intel.c | 3 |
4 files changed, 12 insertions, 9 deletions
diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h index 8813be6..43d921b 100644 --- a/arch/x86/include/asm/microcode.h +++ b/arch/x86/include/asm/microcode.h @@ -15,8 +15,8 @@ struct microcode_ops { enum ucode_state (*request_microcode_user) (int cpu, const void __user *buf, size_t size); - enum ucode_state (*request_microcode_fw) (int cpu, - struct device *device); + enum ucode_state (*request_microcode_fw) (int cpu, struct device *, + bool refresh_fw); void (*microcode_fini_cpu) (int cpu); diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c index 25d34b1..94ecdaa 100644 --- a/arch/x86/kernel/microcode_amd.c +++ b/arch/x86/kernel/microcode_amd.c @@ -330,7 +330,8 @@ out: * * These might be larger than 2K. */ -static enum ucode_state request_microcode_amd(int cpu, struct device *device) +static enum ucode_state request_microcode_amd(int cpu, struct device *device, + bool refresh_fw) { char fw_name[36] = "amd-ucode/microcode_amd.bin"; const struct firmware *fw; diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c index dcde544..9420972 100644 --- a/arch/x86/kernel/microcode_core.c +++ b/arch/x86/kernel/microcode_core.c @@ -282,7 +282,7 @@ static int reload_for_cpu(int cpu) if (!uci->valid) return err; - ustate = microcode_ops->request_microcode_fw(cpu, µcode_pdev->dev); + ustate = microcode_ops->request_microcode_fw(cpu, µcode_pdev->dev, true); if (ustate == UCODE_OK) apply_microcode_on_target(cpu); else @@ -377,7 +377,7 @@ static enum ucode_state microcode_resume_cpu(int cpu) return UCODE_OK; } -static enum ucode_state microcode_init_cpu(int cpu) +static enum ucode_state microcode_init_cpu(int cpu, bool refresh_fw) { enum ucode_state ustate; @@ -388,7 +388,8 @@ static enum ucode_state microcode_init_cpu(int cpu) if (system_state != SYSTEM_RUNNING) return UCODE_NFOUND; - ustate = microcode_ops->request_microcode_fw(cpu, µcode_pdev->dev); + ustate = microcode_ops->request_microcode_fw(cpu, µcode_pdev->dev, + refresh_fw); if (ustate == UCODE_OK) { pr_debug("CPU%d updated upon init\n", cpu); @@ -405,7 +406,7 @@ static enum ucode_state microcode_update_cpu(int cpu) if (uci->valid) return microcode_resume_cpu(cpu); - return microcode_init_cpu(cpu); + return microcode_init_cpu(cpu, false); } static int mc_device_add(struct device *dev, struct subsys_interface *sif) @@ -421,7 +422,7 @@ static int mc_device_add(struct device *dev, struct subsys_interface *sif) if (err) return err; - if (microcode_init_cpu(cpu) == UCODE_ERROR) + if (microcode_init_cpu(cpu, true) == UCODE_ERROR) return -EINVAL; return err; diff --git a/arch/x86/kernel/microcode_intel.c b/arch/x86/kernel/microcode_intel.c index 0327e2b..3544aed 100644 --- a/arch/x86/kernel/microcode_intel.c +++ b/arch/x86/kernel/microcode_intel.c @@ -405,7 +405,8 @@ static int get_ucode_fw(void *to, const void *from, size_t n) return 0; } -static enum ucode_state request_microcode_fw(int cpu, struct device *device) +static enum ucode_state request_microcode_fw(int cpu, struct device *device, + bool refresh_fw) { char name[30]; struct cpuinfo_x86 *c = &cpu_data(cpu); |
