diff options
| author |   Michael Kelley <mikelley@microsoft.com> | 2017-12-22 11:19:02 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-01-09 17:58:41 +0100 |
| commit | 4a5f3cde4d51c7afce859aed9d74d197751896d5 (patch) | |
| tree | 2852c1443bb0cd05f2f8066807fac1333c7ca801 /drivers/hv | |
| parent | ANDROID: binder: remove waitqueue when thread exits. (diff) | |
| download | linux-dev-4a5f3cde4d51c7afce859aed9d74d197751896d5.tar.xz linux-dev-4a5f3cde4d51c7afce859aed9d74d197751896d5.zip | |
Drivers: hv: vmbus: Remove x86-isms from arch independent drivers
hv_is_hypercall_page_setup() is used to check if Hyper-V is
initialized, but a 'hypercall page' is an x86 implementation detail
that isn't necessarily present on other architectures. Rename to the
architecture independent hv_is_hyperv_initialized() and add check
that x86_hyper is pointing to Hyper-V. Use this function instead of
direct references to x86-specific data structures in vmbus_drv.c,
and remove now redundant call in hv_init(). Also remove 'x86' from
the string name passed to cpuhp_setup_state().
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv')
| -rw-r--r-- | drivers/hv/hv.c | 3 | ||||
| -rw-r--r-- | drivers/hv/vmbus_drv.c | 5 |
2 files changed, 2 insertions, 6 deletions
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c index 8267439dd1ee..fe96aab9e794 100644 --- a/drivers/hv/hv.c +++ b/drivers/hv/hv.c @@ -49,9 +49,6 @@ struct hv_context hv_context = { */ int hv_init(void) { - if (!hv_is_hypercall_page_setup()) - return -ENOTSUPP; - hv_context.cpu_context = alloc_percpu(struct hv_per_cpu_context); if (!hv_context.cpu_context) return -ENOMEM; diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index 610223f0e945..398643bb67e2 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -37,7 +37,6 @@ #include <linux/sched/task_stack.h> #include <asm/hyperv.h> -#include <asm/hypervisor.h> #include <asm/mshyperv.h> #include <linux/notifier.h> #include <linux/ptrace.h> @@ -1053,7 +1052,7 @@ static int vmbus_bus_init(void) * Initialize the per-cpu interrupt state and * connect to the host. */ - ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "x86/hyperv:online", + ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "hyperv/vmbus:online", hv_synic_init, hv_synic_cleanup); if (ret < 0) goto err_alloc; @@ -1717,7 +1716,7 @@ static int __init hv_acpi_init(void) { int ret, t; - if (x86_hyper_type != X86_HYPER_MS_HYPERV) + if (!hv_is_hyperv_initialized()) return -ENODEV; init_completion(&probe_event); |