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| author | Boris Ostrovsky <boris.ostrovsky@oracle.com> | 2016-12-18 17:44:14 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-12-19 10:46:20 +0100 |
| commit | 2b4c91569a40c4512ea1b413e0c817d179ce9868 (patch) | |
| tree | e5fbc71b5b99ef05954438b413d6d1f04e72f710 /arch/x86/entry | |
| parent | a15a753539eca8ba243d576f02e7ca9c4b7d7042 (diff) | |
| download | linux-2b4c91569a40c4512ea1b413e0c817d179ce9868.tar.gz linux-2b4c91569a40c4512ea1b413e0c817d179ce9868.tar.bz2 linux-2b4c91569a40c4512ea1b413e0c817d179ce9868.zip | |
x86/microcode/AMD: Use native_cpuid() in load_ucode_amd_bsp()
When CONFIG_PARAVIRT is selected, cpuid() becomes a call. Since
for 32-bit kernels load_ucode_amd_bsp() is executed before paging
is enabled the call cannot be completed (as kernel virtual addresses
are not reachable yet).
Use native_cpuid() instead which is an asm wrapper for the CPUID
instruction.
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Jürgen Gross <jgross@suse.com>
Link: http://lkml.kernel.org/r/1481906392-3847-1-git-send-email-boris.ostrovsky@oracle.com
Link: http://lkml.kernel.org/r/20161218164414.9649-5-bp@alien8.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/entry')
0 files changed, 0 insertions, 0 deletions