Commit 45f46b1a authored by Tianyu Lan's avatar Tianyu Lan Committed by Wei Liu
Browse files

clocksource: hyper-v: Mark hyperv tsc page unencrypted in sev-snp enlightened guest 



Hyper-V tsc page is shared with hypervisor and mark the page
unencrypted in sev-snp enlightened guest when it's used.

Reviewed-by: default avatarDexuan Cui <decui@microsoft.com>
Reviewed-by: default avatarMichael Kelley <mikelley@microsoft.com>
Signed-off-by: default avatarTianyu Lan <tiala@microsoft.com>
Signed-off-by: default avatarWei Liu <wei.liu@kernel.org>
Link: https://lore.kernel.org/r/20230818102919.1318039-7-ltykernel@gmail.com
parent 48b1f683

drivers/clocksource/hyperv_timer.c

+1 −1
Original line number Diff line number Diff line
@@ -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;