diff options
author | Marc Zyngier <marc.zyngier@arm.com> | 2018-07-20 10:53:10 +0100 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-22 14:28:51 +0200 |
commit | 805357aa65bbc419451fb9556968687c7fd1d2e1 (patch) | |
tree | 635d37928233b9f5928c4d6b5bc816abfe2be9cb /samples/mic | |
parent | 0592871918f0acf369cec5c88de1fa76dbf2c1a2 (diff) |
arm64: KVM: Add ARCH_WORKAROUND_2 support for guests
commit 55e3748e8902ff641e334226bdcb432f9a5d78d3 upstream.
In order to offer ARCH_WORKAROUND_2 support to guests, we need
a bit of infrastructure.
Let's add a flag indicating whether or not the guest uses
SSBD mitigation. Depending on the state of this flag, allow
KVM to disable ARCH_WORKAROUND_2 before entering the guest,
and enable it when exiting it.
Reviewed-by: Christoffer Dall <christoffer.dall@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'samples/mic')
0 files changed, 0 insertions, 0 deletions