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authorJulien Thierry <julien.thierry@arm.com>2017-10-20 14:34:16 +0300
committerChristoffer Dall <christoffer.dall@linaro.org>2017-10-21 18:03:20 +0300
commitfe7d7b03c61f6dab70a973fb32c90f2254784e03 (patch)
tree1ffe9d2ba2c940af9a21fdcf161dca83fe104a34 /virt
parentfd6c8c206fc5d0717b0433b191de0715122f33bb (diff)
downloadlinux-fe7d7b03c61f6dab70a973fb32c90f2254784e03.tar.xz
arm/arm64: kvm: Move initialization completion message
KVM is being a bit too optimistic, Hyp mode is said to be initialized when Hyp segments have only been mapped. Notify KVM's successful initialization only once it is really fully initialized. Signed-off-by: Julien Thierry <julien.thierry@arm.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/arm/arm.c31
1 files changed, 14 insertions, 17 deletions
diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index b9f68e4add71..95cba0799828 100644
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c
@@ -1326,21 +1326,12 @@ static void teardown_hyp_mode(void)
{
int cpu;
- if (is_kernel_in_hyp_mode())
- return;
-
free_hyp_pgds();
for_each_possible_cpu(cpu)
free_page(per_cpu(kvm_arm_hyp_stack_page, cpu));
hyp_cpu_pm_exit();
}
-static int init_vhe_mode(void)
-{
- kvm_info("VHE mode initialized successfully\n");
- return 0;
-}
-
/**
* Inits Hyp-mode on all online CPUs
*/
@@ -1421,8 +1412,6 @@ static int init_hyp_mode(void)
}
}
- kvm_info("Hyp mode initialized successfully\n");
-
return 0;
out_err:
@@ -1456,6 +1445,7 @@ int kvm_arch_init(void *opaque)
{
int err;
int ret, cpu;
+ bool in_hyp_mode;
if (!is_hyp_mode_available()) {
kvm_err("HYP mode not available\n");
@@ -1474,21 +1464,28 @@ int kvm_arch_init(void *opaque)
if (err)
return err;
- if (is_kernel_in_hyp_mode())
- err = init_vhe_mode();
- else
+ in_hyp_mode = is_kernel_in_hyp_mode();
+
+ if (!in_hyp_mode) {
err = init_hyp_mode();
- if (err)
- goto out_err;
+ if (err)
+ goto out_err;
+ }
err = init_subsystems();
if (err)
goto out_hyp;
+ if (in_hyp_mode)
+ kvm_info("VHE mode initialized successfully\n");
+ else
+ kvm_info("Hyp mode initialized successfully\n");
+
return 0;
out_hyp:
- teardown_hyp_mode();
+ if (!in_hyp_mode)
+ teardown_hyp_mode();
out_err:
teardown_common_resources();
return err;