diff options
| author | Mark Rutland <mark.rutland@arm.com> | 2018-04-12 12:11:32 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-20 08:21:05 +0200 |
| commit | 196d04197d08a9871c1e12782823caee90cc1c20 (patch) | |
| tree | ba9e54e62b9cbe13c36ba27c2cc86237fba105a9 /include/linux/psci.h | |
| parent | c9ae3d5717bf14c05299f184c4bfee79e9a22efe (diff) | |
arm64: KVM: Add SMCCC_ARCH_WORKAROUND_1 fast handling
From: Marc Zyngier <marc.zyngier@arm.com>
commit f72af90c3783d924337624659b43e2d36f1b36b4 upstream.
We want SMCCC_ARCH_WORKAROUND_1 to be fast. As fast as possible.
So let's intercept it as early as we can by testing for the
function call number as soon as we've identified a HVC call
coming from the guest.
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com> [v4.9 backport]
Tested-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/psci.h')
0 files changed, 0 insertions, 0 deletions