[PATCH V4 6/9] clocksource: hyper-v: Mark hyperv tsc page unencrypted in sev-snp enlightened guest
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STALE1167d
SUPERSEDED: 1 (0M)
From: Tianyu Lan <hidden>
Date: 2023-08-04 15:23:32
Also in:
linux-arch, lkml
Subsystem:
clocksource, clockevent drivers, hyper-v/azure core and drivers, the rest · Maintainers:
Daniel Lezcano, Thomas Gleixner, Haiyang Zhang, Wei Liu, Dexuan Cui, Linus Torvalds
Revision v4 of 7 in this series; 1 review trailer.
Revisions (7)
From: Tianyu Lan <redacted> Hyper-V tsc page is shared with hypervisor and mark the page unencrypted in sev-snp enlightened guest when it's used. Reviewed-by: Michael Kelley <redacted> Signed-off-by: Tianyu Lan <redacted> --- drivers/clocksource/hyperv_timer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clocksource/hyperv_timer.c b/drivers/clocksource/hyperv_timer.c
index e56307a81f4d..8ff7cd4e20bb 100644
--- a/drivers/clocksource/hyperv_timer.c
+++ b/drivers/clocksource/hyperv_timer.c@@ -390,7 +390,7 @@ static __always_inline u64 read_hv_clock_msr(void) static union { struct ms_hyperv_tsc_page page; u8 reserved[PAGE_SIZE]; -} tsc_pg __aligned(PAGE_SIZE); +} tsc_pg __bss_decrypted __aligned(PAGE_SIZE); static struct ms_hyperv_tsc_page *tsc_page = &tsc_pg.page; static unsigned long tsc_pfn;
--
2.25.1