Messages in this thread Patch in this message | | | Subject | [PATCH 1/4] drivers/clocksource/hyper-v: Introduce a pointer to TSC page | From | Stanislav Kinsburskii <> | Date | Tue, 01 Nov 2022 17:31:04 +0000 |
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From: Stanislav Kinsburskiy <stanislav.kinsburskiy@gmail.com>
Will be used later keep the address of the remapped page for the root partition.
Signed-off-by: Stanislav Kinsburskiy <stanislav.kinsburskiy@gmail.com> CC: "K. Y. Srinivasan" <kys@microsoft.com> CC: Haiyang Zhang <haiyangz@microsoft.com> CC: Wei Liu <wei.liu@kernel.org> CC: Dexuan Cui <decui@microsoft.com> CC: Daniel Lezcano <daniel.lezcano@linaro.org> CC: Thomas Gleixner <tglx@linutronix.de> CC: linux-hyperv@vger.kernel.org CC: linux-kernel@vger.kernel.org --- drivers/clocksource/hyperv_timer.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/clocksource/hyperv_timer.c b/drivers/clocksource/hyperv_timer.c index 11332c82d1af..c4dbf40a3d3e 100644 --- a/drivers/clocksource/hyperv_timer.c +++ b/drivers/clocksource/hyperv_timer.c @@ -366,9 +366,11 @@ static union { u8 reserved[PAGE_SIZE]; } tsc_pg __aligned(PAGE_SIZE); +static struct ms_hyperv_tsc_page *tsc_page = &tsc_pg.page; + struct ms_hyperv_tsc_page *hv_get_tsc_page(void) { - return &tsc_pg.page; + return tsc_page; } EXPORT_SYMBOL_GPL(hv_get_tsc_page); @@ -406,7 +408,7 @@ static void suspend_hv_clock_tsc(struct clocksource *arg) static void resume_hv_clock_tsc(struct clocksource *arg) { - phys_addr_t phys_addr = virt_to_phys(&tsc_pg); + phys_addr_t phys_addr = virt_to_phys(tsc_page); union hv_reference_tsc_msr tsc_msr; /* Re-enable the TSC page */
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