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x86/speculation/mmio: Enumerate Processor MMIO Stale Data bug
authorPawan Gupta <pawan.kumar.gupta@linux.intel.com>
Fri, 20 May 2022 03:27:08 +0000 (20:27 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 16 Jun 2022 11:23:31 +0000 (13:23 +0200)
commit814ccb6730358c2e30e00cb81fb84f4d480ff34f
tree6f3062ac4abbf02303dbc84e7201532d516c06e1tree | snapshot
parent91f8147c8371cb228bef738641abcd183d7adaf1commit | diff
x86/speculation/mmio: Enumerate Processor MMIO Stale Data bug

commit 51802186158c74a0304f51ab963e7c2b3a2b046f upstream

Processor MMIO Stale Data is a class of vulnerabilities that may
expose data after an MMIO operation. For more details please refer to
Documentation/admin-guide/hw-vuln/processor_mmio_stale_data.rst

Add the Processor MMIO Stale Data bug enumeration. A microcode update
adds new bits to the MSR IA32_ARCH_CAPABILITIES, define them.

Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/x86/include/asm/cpufeatures.h diff | blob | blame | history
arch/x86/include/asm/msr-index.h diff | blob | blame | history
arch/x86/kernel/cpu/common.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git