diff options
| author | Nuno Das Neves <nunodasneves@linux.microsoft.com> | 2025-02-21 11:56:34 -0800 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2025-02-22 02:21:45 +0000 |
| commit | db912b8954c23a55dbc6dc683e0e06ffcb433848 (patch) | |
| tree | 8a933867846cc3e373233cf25371f6c79f267502 /drivers/clocksource/hyperv_timer.c | |
| parent | 9d8731a1757bef8630cb47e5ae3a1abbcf863e90 (diff) | |
hyperv: Change hv_root_partition into a function
Introduce hv_curr_partition_type to store the partition type
as an enum.
Right now this is limited to guest or root partition, but there will
be other kinds in future and the enum is easily extensible.
Set up hv_curr_partition_type early in Hyper-V initialization with
hv_identify_partition_type(). hv_root_partition() just queries this
value, and shouldn't be called before that.
Making this check into a function sets the stage for adding a config
option to gate the compilation of root partition code. In particular,
hv_root_partition() can be stubbed out always be false if root
partition support isn't desired.
Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com>
Reviewed-by: Easwar Hariharan <eahariha@linux.microsoft.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Link: https://lore.kernel.org/r/1740167795-13296-3-git-send-email-nunodasneves@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <1740167795-13296-3-git-send-email-nunodasneves@linux.microsoft.com>
Diffstat (limited to 'drivers/clocksource/hyperv_timer.c')
| -rw-r--r-- | drivers/clocksource/hyperv_timer.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/clocksource/hyperv_timer.c b/drivers/clocksource/hyperv_timer.c index f00019b078a7..09549451dd51 100644 --- a/drivers/clocksource/hyperv_timer.c +++ b/drivers/clocksource/hyperv_timer.c @@ -582,7 +582,7 @@ static void __init hv_init_tsc_clocksource(void) * mapped. */ tsc_msr.as_uint64 = hv_get_msr(HV_MSR_REFERENCE_TSC); - if (hv_root_partition) + if (hv_root_partition()) tsc_pfn = tsc_msr.pfn; else tsc_pfn = HVPFN_DOWN(virt_to_phys(tsc_page)); @@ -627,7 +627,7 @@ void __init hv_remap_tsc_clocksource(void) if (!(ms_hyperv.features & HV_MSR_REFERENCE_TSC_AVAILABLE)) return; - if (!hv_root_partition) { + if (!hv_root_partition()) { WARN(1, "%s: attempt to remap TSC page in guest partition\n", __func__); return; |