diff options
| author | David Brazdil <dbrazdil@google.com> | 2020-12-02 18:40:58 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-12-04 08:44:19 +0000 |
| commit | 3eb681fba2bf8b67b65ce92d0ebfd7cbfc263da9 (patch) | |
| tree | 80f606f3844112537952138f600bcc926a5b1b35 /arch/arm64/kvm | |
| parent | d8b369c4e31430a4746571bcae45a98933827232 (diff) | |
| download | linux-3eb681fba2bf8b67b65ce92d0ebfd7cbfc263da9.tar.bz2 | |
KVM: arm64: Add ARM64_KVM_PROTECTED_MODE CPU capability
Expose the boolean value whether the system is running with KVM in
protected mode (nVHE + kernel param). CPU capability was selected over
a global variable to allow use in alternatives.
Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201202184122.26046-3-dbrazdil@google.com
Diffstat (limited to 'arch/arm64/kvm')
| -rw-r--r-- | arch/arm64/kvm/arm.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 5db90680742c..745e1b4bcbe0 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -1771,7 +1771,9 @@ int kvm_arch_init(void *opaque) if (err) goto out_hyp; - if (in_hyp_mode) + if (is_protected_kvm_enabled()) + kvm_info("Protected nVHE mode initialized successfully\n"); + else if (in_hyp_mode) kvm_info("VHE mode initialized successfully\n"); else kvm_info("Hyp mode initialized successfully\n"); @@ -1806,6 +1808,11 @@ static int __init early_kvm_mode_cfg(char *arg) } early_param("kvm-arm.mode", early_kvm_mode_cfg); +enum kvm_mode kvm_get_mode(void) +{ + return kvm_mode; +} + static int arm_init(void) { int rc = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE); |